From 7c32361a7daa258af2be392fade5c0516bac06f2 Mon Sep 17 00:00:00 2001
From: Chris Lu <chrislusf@users.noreply.github.com>
Date: Fri, 1 Jul 2022 21:43:39 -0700
Subject: [PATCH 01/17] Added SeaweedMQ_Architecture.png

---
 note/SeaweedMQ_Architecture.png | Bin 0 -> 139655 bytes
 1 file changed, 0 insertions(+), 0 deletions(-)
 create mode 100644 note/SeaweedMQ_Architecture.png

diff --git a/note/SeaweedMQ_Architecture.png b/note/SeaweedMQ_Architecture.png
new file mode 100644
index 0000000000000000000000000000000000000000..d3cce62301e75c02508928ef53db986901f2d287
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HcmV?d00001


From 7df440e36f38c70473075513ef195e3d80f2c4fb Mon Sep 17 00:00:00 2001
From: chrislu <chris.lu@gmail.com>
Date: Fri, 1 Jul 2022 21:59:50 -0700
Subject: [PATCH 02/17] rename to SeaweedMQ

---
 weed/command/command.go                      |  2 +-
 weed/command/{msg_broker.go => mq_broker.go} | 42 ++++++++++----------
 weed/command/server.go                       | 28 ++++++-------
 3 files changed, 36 insertions(+), 36 deletions(-)
 rename weed/command/{msg_broker.go => mq_broker.go} (56%)

diff --git a/weed/command/command.go b/weed/command/command.go
index 7635405dc..abd1b63e9 100644
--- a/weed/command/command.go
+++ b/weed/command/command.go
@@ -33,7 +33,7 @@ var Commands = []*Command{
 	cmdMount,
 	cmdS3,
 	cmdIam,
-	cmdMsgBroker,
+	cmdMqBroker,
 	cmdScaffold,
 	cmdServer,
 	cmdShell,
diff --git a/weed/command/msg_broker.go b/weed/command/mq_broker.go
similarity index 56%
rename from weed/command/msg_broker.go
rename to weed/command/mq_broker.go
index 3274f599b..a5a6e3566 100644
--- a/weed/command/msg_broker.go
+++ b/weed/command/mq_broker.go
@@ -19,10 +19,10 @@ import (
 )
 
 var (
-	messageBrokerStandaloneOptions MessageBrokerOptions
+	mqBrokerStandaloneOptions MessageQueueBrokerOptions
 )
 
-type MessageBrokerOptions struct {
+type MessageQueueBrokerOptions struct {
 	filer      *string
 	ip         *string
 	port       *int
@@ -31,16 +31,16 @@ type MessageBrokerOptions struct {
 }
 
 func init() {
-	cmdMsgBroker.Run = runMsgBroker // break init cycle
-	messageBrokerStandaloneOptions.filer = cmdMsgBroker.Flag.String("filer", "localhost:8888", "filer server address")
-	messageBrokerStandaloneOptions.ip = cmdMsgBroker.Flag.String("ip", util.DetectedHostAddress(), "broker host address")
-	messageBrokerStandaloneOptions.port = cmdMsgBroker.Flag.Int("port", 17777, "broker gRPC listen port")
-	messageBrokerStandaloneOptions.cpuprofile = cmdMsgBroker.Flag.String("cpuprofile", "", "cpu profile output file")
-	messageBrokerStandaloneOptions.memprofile = cmdMsgBroker.Flag.String("memprofile", "", "memory profile output file")
+	cmdMqBroker.Run = runMqBroker // break init cycle
+	mqBrokerStandaloneOptions.filer = cmdMqBroker.Flag.String("filer", "localhost:8888", "filer server address")
+	mqBrokerStandaloneOptions.ip = cmdMqBroker.Flag.String("ip", util.DetectedHostAddress(), "broker host address")
+	mqBrokerStandaloneOptions.port = cmdMqBroker.Flag.Int("port", 17777, "broker gRPC listen port")
+	mqBrokerStandaloneOptions.cpuprofile = cmdMqBroker.Flag.String("cpuprofile", "", "cpu profile output file")
+	mqBrokerStandaloneOptions.memprofile = cmdMqBroker.Flag.String("memprofile", "", "memory profile output file")
 }
 
-var cmdMsgBroker = &Command{
-	UsageLine: "msgBroker [-port=17777] [-filer=<ip:port>]",
+var cmdMqBroker = &Command{
+	UsageLine: "mq.broker [-port=17777] [-filer=<ip:port>]",
 	Short:     "start a message queue broker",
 	Long: `start a message queue broker
 
@@ -50,19 +50,19 @@ var cmdMsgBroker = &Command{
 `,
 }
 
-func runMsgBroker(cmd *Command, args []string) bool {
+func runMqBroker(cmd *Command, args []string) bool {
 
 	util.LoadConfiguration("security", false)
 
-	return messageBrokerStandaloneOptions.startQueueServer()
+	return mqBrokerStandaloneOptions.startQueueServer()
 
 }
 
-func (msgBrokerOpt *MessageBrokerOptions) startQueueServer() bool {
+func (mqBrokerOpt *MessageQueueBrokerOptions) startQueueServer() bool {
 
-	grace.SetupProfiling(*messageBrokerStandaloneOptions.cpuprofile, *messageBrokerStandaloneOptions.memprofile)
+	grace.SetupProfiling(*mqBrokerStandaloneOptions.cpuprofile, *mqBrokerStandaloneOptions.memprofile)
 
-	filerAddress := pb.ServerAddress(*msgBrokerOpt.filer)
+	filerAddress := pb.ServerAddress(*mqBrokerOpt.filer)
 
 	grpcDialOption := security.LoadClientTLS(util.GetViper(), "grpc.msg_broker")
 	cipher := false
@@ -77,10 +77,10 @@ func (msgBrokerOpt *MessageBrokerOptions) startQueueServer() bool {
 			return nil
 		})
 		if err != nil {
-			glog.V(0).Infof("wait to connect to filer %s grpc address %s", *msgBrokerOpt.filer, filerAddress.ToGrpcAddress())
+			glog.V(0).Infof("wait to connect to filer %s grpc address %s", *mqBrokerOpt.filer, filerAddress.ToGrpcAddress())
 			time.Sleep(time.Second)
 		} else {
-			glog.V(0).Infof("connected to filer %s grpc address %s", *msgBrokerOpt.filer, filerAddress.ToGrpcAddress())
+			glog.V(0).Infof("connected to filer %s grpc address %s", *mqBrokerOpt.filer, filerAddress.ToGrpcAddress())
 			break
 		}
 	}
@@ -89,15 +89,15 @@ func (msgBrokerOpt *MessageBrokerOptions) startQueueServer() bool {
 		Filers:             []pb.ServerAddress{filerAddress},
 		DefaultReplication: "",
 		MaxMB:              0,
-		Ip:                 *msgBrokerOpt.ip,
-		Port:               *msgBrokerOpt.port,
+		Ip:                 *mqBrokerOpt.ip,
+		Port:               *mqBrokerOpt.port,
 		Cipher:             cipher,
 	}, grpcDialOption)
 
 	// start grpc listener
-	grpcL, _, err := util.NewIpAndLocalListeners("", *msgBrokerOpt.port, 0)
+	grpcL, _, err := util.NewIpAndLocalListeners("", *mqBrokerOpt.port, 0)
 	if err != nil {
-		glog.Fatalf("failed to listen on grpc port %d: %v", *msgBrokerOpt.port, err)
+		glog.Fatalf("failed to listen on grpc port %d: %v", *mqBrokerOpt.port, err)
 	}
 	grpcS := pb.NewGrpcServer(security.LoadServerTLS(util.GetViper(), "grpc.msg_broker"))
 	messaging_pb.RegisterSeaweedMessagingServer(grpcS, qs)
diff --git a/weed/command/server.go b/weed/command/server.go
index b1812bb9b..7c14fd14f 100644
--- a/weed/command/server.go
+++ b/weed/command/server.go
@@ -24,13 +24,13 @@ type ServerOptions struct {
 }
 
 var (
-	serverOptions    ServerOptions
-	masterOptions    MasterOptions
-	filerOptions     FilerOptions
-	s3Options        S3Options
-	iamOptions       IamOptions
-	webdavOptions    WebDavOption
-	msgBrokerOptions MessageBrokerOptions
+	serverOptions   ServerOptions
+	masterOptions   MasterOptions
+	filerOptions    FilerOptions
+	s3Options       S3Options
+	iamOptions      IamOptions
+	webdavOptions   WebDavOption
+	mqBrokerOptions MessageQueueBrokerOptions
 )
 
 func init() {
@@ -74,7 +74,7 @@ var (
 	isStartingS3           = cmdServer.Flag.Bool("s3", false, "whether to start S3 gateway")
 	isStartingIam          = cmdServer.Flag.Bool("iam", false, "whether to start IAM service")
 	isStartingWebDav       = cmdServer.Flag.Bool("webdav", false, "whether to start WebDAV gateway")
-	isStartingMsgBroker    = cmdServer.Flag.Bool("msgBroker", false, "whether to start message broker")
+	isStartingMqBroker     = cmdServer.Flag.Bool("mq.broker", false, "whether to start message queue broker")
 
 	serverWhiteList []string
 
@@ -155,7 +155,7 @@ func init() {
 	webdavOptions.cacheDir = cmdServer.Flag.String("webdav.cacheDir", os.TempDir(), "local cache directory for file chunks")
 	webdavOptions.cacheSizeMB = cmdServer.Flag.Int64("webdav.cacheCapacityMB", 0, "local cache capacity in MB")
 
-	msgBrokerOptions.port = cmdServer.Flag.Int("msgBroker.port", 17777, "broker gRPC listen port")
+	mqBrokerOptions.port = cmdServer.Flag.Int("mq.broker.port", 17777, "message queue broker gRPC listen port")
 
 }
 
@@ -179,7 +179,7 @@ func runServer(cmd *Command, args []string) bool {
 	if *isStartingWebDav {
 		*isStartingFiler = true
 	}
-	if *isStartingMsgBroker {
+	if *isStartingMqBroker {
 		*isStartingFiler = true
 	}
 
@@ -208,7 +208,7 @@ func runServer(cmd *Command, args []string) bool {
 	serverOptions.v.idleConnectionTimeout = serverTimeout
 	serverOptions.v.dataCenter = serverDataCenter
 	serverOptions.v.rack = serverRack
-	msgBrokerOptions.ip = serverIp
+	mqBrokerOptions.ip = serverIp
 
 	// serverOptions.v.pulseSeconds = pulseSeconds
 	// masterOptions.pulseSeconds = pulseSeconds
@@ -224,7 +224,7 @@ func runServer(cmd *Command, args []string) bool {
 	s3Options.filer = &filerAddress
 	iamOptions.filer = &filerAddress
 	webdavOptions.filer = &filerAddress
-	msgBrokerOptions.filer = &filerAddress
+	mqBrokerOptions.filer = &filerAddress
 
 	go stats_collect.StartMetricsServer(*serverMetricsHttpPort)
 
@@ -276,10 +276,10 @@ func runServer(cmd *Command, args []string) bool {
 		}()
 	}
 
-	if *isStartingMsgBroker {
+	if *isStartingMqBroker {
 		go func() {
 			time.Sleep(2 * time.Second)
-			msgBrokerOptions.startQueueServer()
+			mqBrokerOptions.startQueueServer()
 		}()
 	}
 

From 5536ed85e58a438f7fccebc3d79e7475386e7cf5 Mon Sep 17 00:00:00 2001
From: chrislu <chris.lu@gmail.com>
Date: Fri, 1 Jul 2022 22:43:25 -0700
Subject: [PATCH 03/17] renaming

---
 weed/command/mq_broker.go                     |   6 +-
 .../{messaging => mq}/broker/broker_append.go |   6 +-
 .../broker/broker_grpc_server.go              |  10 +-
 .../broker/broker_grpc_server_discovery.go    |   6 +-
 .../broker/broker_grpc_server_publish.go      |  10 +-
 .../broker/broker_grpc_server_subscribe.go    |  20 ++--
 .../{messaging => mq}/broker/broker_server.go |   4 +-
 .../broker/consistent_distribution.go         |   0
 .../broker/consistent_distribution_test.go    |   0
 .../{messaging => mq}/broker/topic_manager.go |   6 +-
 .../msgclient/chan_config.go                  |   0
 weed/{messaging => mq}/msgclient/chan_pub.go  |  14 +--
 weed/{messaging => mq}/msgclient/chan_sub.go  |   8 +-
 weed/{messaging => mq}/msgclient/client.go    |   8 +-
 weed/{messaging => mq}/msgclient/config.go    |  18 ++--
 weed/{messaging => mq}/msgclient/publisher.go |  28 ++---
 .../{messaging => mq}/msgclient/subscriber.go |  26 ++---
 weed/pb/Makefile                              |   2 +-
 weed/pb/grpc_client_server.go                 |   6 +-
 weed/pb/messaging.proto                       |   2 +-
 weed/pb/mount_pb/mount.pb.go                  |   8 +-
 weed/pb/mount_pb/mount_grpc.pb.go             |   6 +-
 .../{messaging_pb => mq_pb}/messaging.pb.go   | 100 +++++++++---------
 .../messaging_grpc.pb.go                      |  26 ++---
 weed/pb/s3_pb/s3.pb.go                        |  24 ++---
 weed/pb/s3_pb/s3_grpc.pb.go                   |   6 +-
 weed/util/log_buffer/log_read.go              |   2 +-
 27 files changed, 176 insertions(+), 176 deletions(-)
 rename weed/{messaging => mq}/broker/broker_append.go (92%)
 rename weed/{messaging => mq}/broker/broker_grpc_server.go (70%)
 rename weed/{messaging => mq}/broker/broker_grpc_server_discovery.go (94%)
 rename weed/{messaging => mq}/broker/broker_grpc_server_publish.go (86%)
 rename weed/{messaging => mq}/broker/broker_grpc_server_subscribe.go (88%)
 rename weed/{messaging => mq}/broker/broker_server.go (96%)
 rename weed/{messaging => mq}/broker/consistent_distribution.go (100%)
 rename weed/{messaging => mq}/broker/consistent_distribution_test.go (100%)
 rename weed/{messaging => mq}/broker/topic_manager.go (92%)
 rename weed/{messaging => mq}/msgclient/chan_config.go (100%)
 rename weed/{messaging => mq}/msgclient/chan_pub.go (78%)
 rename weed/{messaging => mq}/msgclient/chan_sub.go (86%)
 rename weed/{messaging => mq}/msgclient/client.go (83%)
 rename weed/{messaging => mq}/msgclient/config.go (62%)
 rename weed/{messaging => mq}/msgclient/publisher.go (65%)
 rename weed/{messaging => mq}/msgclient/subscriber.go (70%)
 rename weed/pb/{messaging_pb => mq_pb}/messaging.pb.go (92%)
 rename weed/pb/{messaging_pb => mq_pb}/messaging_grpc.pb.go (93%)

diff --git a/weed/command/mq_broker.go b/weed/command/mq_broker.go
index a5a6e3566..da7f59596 100644
--- a/weed/command/mq_broker.go
+++ b/weed/command/mq_broker.go
@@ -10,10 +10,10 @@ import (
 	"github.com/chrislusf/seaweedfs/weed/util/grace"
 
 	"github.com/chrislusf/seaweedfs/weed/glog"
-	"github.com/chrislusf/seaweedfs/weed/messaging/broker"
+	"github.com/chrislusf/seaweedfs/weed/mq/broker"
 	"github.com/chrislusf/seaweedfs/weed/pb"
 	"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
-	"github.com/chrislusf/seaweedfs/weed/pb/messaging_pb"
+	"github.com/chrislusf/seaweedfs/weed/pb/mq_pb"
 	"github.com/chrislusf/seaweedfs/weed/security"
 	"github.com/chrislusf/seaweedfs/weed/util"
 )
@@ -100,7 +100,7 @@ func (mqBrokerOpt *MessageQueueBrokerOptions) startQueueServer() bool {
 		glog.Fatalf("failed to listen on grpc port %d: %v", *mqBrokerOpt.port, err)
 	}
 	grpcS := pb.NewGrpcServer(security.LoadServerTLS(util.GetViper(), "grpc.msg_broker"))
-	messaging_pb.RegisterSeaweedMessagingServer(grpcS, qs)
+	mq_pb.RegisterSeaweedMessagingServer(grpcS, qs)
 	reflection.Register(grpcS)
 	grpcS.Serve(grpcL)
 
diff --git a/weed/messaging/broker/broker_append.go b/weed/mq/broker/broker_append.go
similarity index 92%
rename from weed/messaging/broker/broker_append.go
rename to weed/mq/broker/broker_append.go
index 9a31a8ac0..4f3af0ff8 100644
--- a/weed/messaging/broker/broker_append.go
+++ b/weed/mq/broker/broker_append.go
@@ -10,11 +10,11 @@ import (
 	"github.com/chrislusf/seaweedfs/weed/operation"
 	"github.com/chrislusf/seaweedfs/weed/pb"
 	"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
-	"github.com/chrislusf/seaweedfs/weed/pb/messaging_pb"
+	"github.com/chrislusf/seaweedfs/weed/pb/mq_pb"
 	"github.com/chrislusf/seaweedfs/weed/util"
 )
 
-func (broker *MessageBroker) appendToFile(targetFile string, topicConfig *messaging_pb.TopicConfiguration, data []byte) error {
+func (broker *MessageBroker) appendToFile(targetFile string, topicConfig *mq_pb.TopicConfiguration, data []byte) error {
 
 	assignResult, uploadResult, err2 := broker.assignAndUpload(topicConfig, data)
 	if err2 != nil {
@@ -46,7 +46,7 @@ func (broker *MessageBroker) appendToFile(targetFile string, topicConfig *messag
 	return nil
 }
 
-func (broker *MessageBroker) assignAndUpload(topicConfig *messaging_pb.TopicConfiguration, data []byte) (*operation.AssignResult, *operation.UploadResult, error) {
+func (broker *MessageBroker) assignAndUpload(topicConfig *mq_pb.TopicConfiguration, data []byte) (*operation.AssignResult, *operation.UploadResult, error) {
 
 	var assignResult = &operation.AssignResult{}
 
diff --git a/weed/messaging/broker/broker_grpc_server.go b/weed/mq/broker/broker_grpc_server.go
similarity index 70%
rename from weed/messaging/broker/broker_grpc_server.go
rename to weed/mq/broker/broker_grpc_server.go
index ba141fdd0..9aa9b1908 100644
--- a/weed/messaging/broker/broker_grpc_server.go
+++ b/weed/mq/broker/broker_grpc_server.go
@@ -6,15 +6,15 @@ import (
 
 	"github.com/chrislusf/seaweedfs/weed/filer"
 	"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
-	"github.com/chrislusf/seaweedfs/weed/pb/messaging_pb"
+	"github.com/chrislusf/seaweedfs/weed/pb/mq_pb"
 )
 
-func (broker *MessageBroker) ConfigureTopic(c context.Context, request *messaging_pb.ConfigureTopicRequest) (*messaging_pb.ConfigureTopicResponse, error) {
+func (broker *MessageBroker) ConfigureTopic(c context.Context, request *mq_pb.ConfigureTopicRequest) (*mq_pb.ConfigureTopicResponse, error) {
 	panic("implement me")
 }
 
-func (broker *MessageBroker) DeleteTopic(c context.Context, request *messaging_pb.DeleteTopicRequest) (*messaging_pb.DeleteTopicResponse, error) {
-	resp := &messaging_pb.DeleteTopicResponse{}
+func (broker *MessageBroker) DeleteTopic(c context.Context, request *mq_pb.DeleteTopicRequest) (*mq_pb.DeleteTopicResponse, error) {
+	resp := &mq_pb.DeleteTopicResponse{}
 	dir, entry := genTopicDirEntry(request.Namespace, request.Topic)
 	if exists, err := filer_pb.Exists(broker, dir, entry, true); err != nil {
 		return nil, err
@@ -24,7 +24,7 @@ func (broker *MessageBroker) DeleteTopic(c context.Context, request *messaging_p
 	return resp, nil
 }
 
-func (broker *MessageBroker) GetTopicConfiguration(c context.Context, request *messaging_pb.GetTopicConfigurationRequest) (*messaging_pb.GetTopicConfigurationResponse, error) {
+func (broker *MessageBroker) GetTopicConfiguration(c context.Context, request *mq_pb.GetTopicConfigurationRequest) (*mq_pb.GetTopicConfigurationResponse, error) {
 	panic("implement me")
 }
 
diff --git a/weed/messaging/broker/broker_grpc_server_discovery.go b/weed/mq/broker/broker_grpc_server_discovery.go
similarity index 94%
rename from weed/messaging/broker/broker_grpc_server_discovery.go
rename to weed/mq/broker/broker_grpc_server_discovery.go
index 5cd8edd33..0c8d70e68 100644
--- a/weed/messaging/broker/broker_grpc_server_discovery.go
+++ b/weed/mq/broker/broker_grpc_server_discovery.go
@@ -10,7 +10,7 @@ import (
 	"github.com/chrislusf/seaweedfs/weed/glog"
 	"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
 	"github.com/chrislusf/seaweedfs/weed/pb/master_pb"
-	"github.com/chrislusf/seaweedfs/weed/pb/messaging_pb"
+	"github.com/chrislusf/seaweedfs/weed/pb/mq_pb"
 )
 
 /*
@@ -26,9 +26,9 @@ If one of the pub or sub connects very late, and the system topo changed quite a
 
 */
 
-func (broker *MessageBroker) FindBroker(c context.Context, request *messaging_pb.FindBrokerRequest) (*messaging_pb.FindBrokerResponse, error) {
+func (broker *MessageBroker) FindBroker(c context.Context, request *mq_pb.FindBrokerRequest) (*mq_pb.FindBrokerResponse, error) {
 
-	t := &messaging_pb.FindBrokerResponse{}
+	t := &mq_pb.FindBrokerResponse{}
 	var peers []string
 
 	targetTopicPartition := fmt.Sprintf(TopicPartitionFmt, request.Namespace, request.Topic, request.Parition)
diff --git a/weed/messaging/broker/broker_grpc_server_publish.go b/weed/mq/broker/broker_grpc_server_publish.go
similarity index 86%
rename from weed/messaging/broker/broker_grpc_server_publish.go
rename to weed/mq/broker/broker_grpc_server_publish.go
index 6e6b723d1..4ff9ad809 100644
--- a/weed/messaging/broker/broker_grpc_server_publish.go
+++ b/weed/mq/broker/broker_grpc_server_publish.go
@@ -10,10 +10,10 @@ import (
 	"github.com/chrislusf/seaweedfs/weed/filer"
 	"github.com/chrislusf/seaweedfs/weed/glog"
 	"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
-	"github.com/chrislusf/seaweedfs/weed/pb/messaging_pb"
+	"github.com/chrislusf/seaweedfs/weed/pb/mq_pb"
 )
 
-func (broker *MessageBroker) Publish(stream messaging_pb.SeaweedMessaging_PublishServer) error {
+func (broker *MessageBroker) Publish(stream mq_pb.SeaweedMessaging_PublishServer) error {
 
 	// process initial request
 	in, err := stream.Recv()
@@ -25,12 +25,12 @@ func (broker *MessageBroker) Publish(stream messaging_pb.SeaweedMessaging_Publis
 	}
 
 	// TODO look it up
-	topicConfig := &messaging_pb.TopicConfiguration{
+	topicConfig := &mq_pb.TopicConfiguration{
 		// IsTransient: true,
 	}
 
 	// send init response
-	initResponse := &messaging_pb.PublishResponse{
+	initResponse := &mq_pb.PublishResponse{
 		Config:   nil,
 		Redirect: nil,
 	}
@@ -104,7 +104,7 @@ func (broker *MessageBroker) Publish(stream messaging_pb.SeaweedMessaging_Publis
 
 	// send the close ack
 	// println("server send ack closing")
-	if err := stream.Send(&messaging_pb.PublishResponse{IsClosed: true}); err != nil {
+	if err := stream.Send(&mq_pb.PublishResponse{IsClosed: true}); err != nil {
 		glog.V(0).Infof("err sending close response: %v", err)
 	}
 	return nil
diff --git a/weed/messaging/broker/broker_grpc_server_subscribe.go b/weed/mq/broker/broker_grpc_server_subscribe.go
similarity index 88%
rename from weed/messaging/broker/broker_grpc_server_subscribe.go
rename to weed/mq/broker/broker_grpc_server_subscribe.go
index 20d529239..1a9c62d75 100644
--- a/weed/messaging/broker/broker_grpc_server_subscribe.go
+++ b/weed/mq/broker/broker_grpc_server_subscribe.go
@@ -13,10 +13,10 @@ import (
 	"github.com/chrislusf/seaweedfs/weed/filer"
 	"github.com/chrislusf/seaweedfs/weed/glog"
 	"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
-	"github.com/chrislusf/seaweedfs/weed/pb/messaging_pb"
+	"github.com/chrislusf/seaweedfs/weed/pb/mq_pb"
 )
 
-func (broker *MessageBroker) Subscribe(stream messaging_pb.SeaweedMessaging_SubscribeServer) error {
+func (broker *MessageBroker) Subscribe(stream mq_pb.SeaweedMessaging_SubscribeServer) error {
 
 	// process initial request
 	in, err := stream.Recv()
@@ -32,7 +32,7 @@ func (broker *MessageBroker) Subscribe(stream messaging_pb.SeaweedMessaging_Subs
 	subscriberId := in.Init.SubscriberId
 
 	// TODO look it up
-	topicConfig := &messaging_pb.TopicConfiguration{
+	topicConfig := &mq_pb.TopicConfiguration{
 		// IsTransient: true,
 	}
 
@@ -63,17 +63,17 @@ func (broker *MessageBroker) Subscribe(stream messaging_pb.SeaweedMessaging_Subs
 
 	lastReadTime := time.Now()
 	switch in.Init.StartPosition {
-	case messaging_pb.SubscriberMessage_InitMessage_TIMESTAMP:
+	case mq_pb.SubscriberMessage_InitMessage_TIMESTAMP:
 		lastReadTime = time.Unix(0, in.Init.TimestampNs)
-	case messaging_pb.SubscriberMessage_InitMessage_LATEST:
-	case messaging_pb.SubscriberMessage_InitMessage_EARLIEST:
+	case mq_pb.SubscriberMessage_InitMessage_LATEST:
+	case mq_pb.SubscriberMessage_InitMessage_EARLIEST:
 		lastReadTime = time.Unix(0, 0)
 	}
 
 	// how to process each message
 	// an error returned will end the subscription
-	eachMessageFn := func(m *messaging_pb.Message) error {
-		err := stream.Send(&messaging_pb.BrokerMessage{
+	eachMessageFn := func(m *mq_pb.Message) error {
+		err := stream.Send(&mq_pb.BrokerMessage{
 			Data: m,
 		})
 		if err != nil {
@@ -83,9 +83,9 @@ func (broker *MessageBroker) Subscribe(stream messaging_pb.SeaweedMessaging_Subs
 	}
 
 	eachLogEntryFn := func(logEntry *filer_pb.LogEntry) error {
-		m := &messaging_pb.Message{}
+		m := &mq_pb.Message{}
 		if err = proto.Unmarshal(logEntry.Data, m); err != nil {
-			glog.Errorf("unexpected unmarshal messaging_pb.Message: %v", err)
+			glog.Errorf("unexpected unmarshal mq_pb.Message: %v", err)
 			return err
 		}
 		// fmt.Printf("sending : %d bytes ts %d\n", len(m.Value), logEntry.TsNs)
diff --git a/weed/messaging/broker/broker_server.go b/weed/mq/broker/broker_server.go
similarity index 96%
rename from weed/messaging/broker/broker_server.go
rename to weed/mq/broker/broker_server.go
index acf2d6d34..5aa5285c9 100644
--- a/weed/messaging/broker/broker_server.go
+++ b/weed/mq/broker/broker_server.go
@@ -2,7 +2,7 @@ package broker
 
 import (
 	"context"
-	"github.com/chrislusf/seaweedfs/weed/pb/messaging_pb"
+	"github.com/chrislusf/seaweedfs/weed/pb/mq_pb"
 	"time"
 
 	"google.golang.org/grpc"
@@ -23,7 +23,7 @@ type MessageBrokerOption struct {
 }
 
 type MessageBroker struct {
-	messaging_pb.UnimplementedSeaweedMessagingServer
+	mq_pb.UnimplementedSeaweedMessagingServer
 	option         *MessageBrokerOption
 	grpcDialOption grpc.DialOption
 	topicManager   *TopicManager
diff --git a/weed/messaging/broker/consistent_distribution.go b/weed/mq/broker/consistent_distribution.go
similarity index 100%
rename from weed/messaging/broker/consistent_distribution.go
rename to weed/mq/broker/consistent_distribution.go
diff --git a/weed/messaging/broker/consistent_distribution_test.go b/weed/mq/broker/consistent_distribution_test.go
similarity index 100%
rename from weed/messaging/broker/consistent_distribution_test.go
rename to weed/mq/broker/consistent_distribution_test.go
diff --git a/weed/messaging/broker/topic_manager.go b/weed/mq/broker/topic_manager.go
similarity index 92%
rename from weed/messaging/broker/topic_manager.go
rename to weed/mq/broker/topic_manager.go
index c303c29b3..1acf085fa 100644
--- a/weed/messaging/broker/topic_manager.go
+++ b/weed/mq/broker/topic_manager.go
@@ -7,7 +7,7 @@ import (
 
 	"github.com/chrislusf/seaweedfs/weed/filer"
 	"github.com/chrislusf/seaweedfs/weed/glog"
-	"github.com/chrislusf/seaweedfs/weed/pb/messaging_pb"
+	"github.com/chrislusf/seaweedfs/weed/pb/mq_pb"
 	"github.com/chrislusf/seaweedfs/weed/util/log_buffer"
 )
 
@@ -46,7 +46,7 @@ func NewTopicManager(messageBroker *MessageBroker) *TopicManager {
 	}
 }
 
-func (tm *TopicManager) buildLogBuffer(tl *TopicControl, tp TopicPartition, topicConfig *messaging_pb.TopicConfiguration) *log_buffer.LogBuffer {
+func (tm *TopicManager) buildLogBuffer(tl *TopicControl, tp TopicPartition, topicConfig *mq_pb.TopicConfiguration) *log_buffer.LogBuffer {
 
 	flushFn := func(startTime, stopTime time.Time, buf []byte) {
 
@@ -75,7 +75,7 @@ func (tm *TopicManager) buildLogBuffer(tl *TopicControl, tp TopicPartition, topi
 	return logBuffer
 }
 
-func (tm *TopicManager) RequestLock(partition TopicPartition, topicConfig *messaging_pb.TopicConfiguration, isPublisher bool) *TopicControl {
+func (tm *TopicManager) RequestLock(partition TopicPartition, topicConfig *mq_pb.TopicConfiguration, isPublisher bool) *TopicControl {
 	tm.Lock()
 	defer tm.Unlock()
 
diff --git a/weed/messaging/msgclient/chan_config.go b/weed/mq/msgclient/chan_config.go
similarity index 100%
rename from weed/messaging/msgclient/chan_config.go
rename to weed/mq/msgclient/chan_config.go
diff --git a/weed/messaging/msgclient/chan_pub.go b/weed/mq/msgclient/chan_pub.go
similarity index 78%
rename from weed/messaging/msgclient/chan_pub.go
rename to weed/mq/msgclient/chan_pub.go
index 9bc88f7c0..f4ffe832a 100644
--- a/weed/messaging/msgclient/chan_pub.go
+++ b/weed/mq/msgclient/chan_pub.go
@@ -8,12 +8,12 @@ import (
 
 	"google.golang.org/grpc"
 
-	"github.com/chrislusf/seaweedfs/weed/messaging/broker"
-	"github.com/chrislusf/seaweedfs/weed/pb/messaging_pb"
+	"github.com/chrislusf/seaweedfs/weed/mq/broker"
+	"github.com/chrislusf/seaweedfs/weed/pb/mq_pb"
 )
 
 type PubChannel struct {
-	client         messaging_pb.SeaweedMessaging_PublishClient
+	client         mq_pb.SeaweedMessaging_PublishClient
 	grpcConnection *grpc.ClientConn
 	md5hash        hash.Hash
 }
@@ -40,8 +40,8 @@ func (mc *MessagingClient) NewPubChannel(chanName string) (*PubChannel, error) {
 }
 
 func (pc *PubChannel) Publish(m []byte) error {
-	err := pc.client.Send(&messaging_pb.PublishRequest{
-		Data: &messaging_pb.Message{
+	err := pc.client.Send(&mq_pb.PublishRequest{
+		Data: &mq_pb.Message{
 			Value: m,
 		},
 	})
@@ -53,8 +53,8 @@ func (pc *PubChannel) Publish(m []byte) error {
 func (pc *PubChannel) Close() error {
 
 	// println("send closing")
-	if err := pc.client.Send(&messaging_pb.PublishRequest{
-		Data: &messaging_pb.Message{
+	if err := pc.client.Send(&mq_pb.PublishRequest{
+		Data: &mq_pb.Message{
 			IsClose: true,
 		},
 	}); err != nil {
diff --git a/weed/messaging/msgclient/chan_sub.go b/weed/mq/msgclient/chan_sub.go
similarity index 86%
rename from weed/messaging/msgclient/chan_sub.go
rename to weed/mq/msgclient/chan_sub.go
index 213ff4666..859b482ef 100644
--- a/weed/messaging/msgclient/chan_sub.go
+++ b/weed/mq/msgclient/chan_sub.go
@@ -8,13 +8,13 @@ import (
 	"log"
 	"time"
 
-	"github.com/chrislusf/seaweedfs/weed/messaging/broker"
-	"github.com/chrislusf/seaweedfs/weed/pb/messaging_pb"
+	"github.com/chrislusf/seaweedfs/weed/mq/broker"
+	"github.com/chrislusf/seaweedfs/weed/pb/mq_pb"
 )
 
 type SubChannel struct {
 	ch      chan []byte
-	stream  messaging_pb.SeaweedMessaging_SubscribeClient
+	stream  mq_pb.SeaweedMessaging_SubscribeClient
 	md5hash hash.Hash
 	cancel  context.CancelFunc
 }
@@ -57,7 +57,7 @@ func (mc *MessagingClient) NewSubChannel(subscriberId, chanName string) (*SubCha
 				continue
 			}
 			if resp.Data.IsClose {
-				t.stream.Send(&messaging_pb.SubscriberMessage{
+				t.stream.Send(&mq_pb.SubscriberMessage{
 					IsClose: true,
 				})
 				close(t.ch)
diff --git a/weed/messaging/msgclient/client.go b/weed/mq/msgclient/client.go
similarity index 83%
rename from weed/messaging/msgclient/client.go
rename to weed/mq/msgclient/client.go
index 4d7ef2b8e..cc64f1acb 100644
--- a/weed/messaging/msgclient/client.go
+++ b/weed/mq/msgclient/client.go
@@ -7,9 +7,9 @@ import (
 
 	"google.golang.org/grpc"
 
-	"github.com/chrislusf/seaweedfs/weed/messaging/broker"
+	"github.com/chrislusf/seaweedfs/weed/mq/broker"
 	"github.com/chrislusf/seaweedfs/weed/pb"
-	"github.com/chrislusf/seaweedfs/weed/pb/messaging_pb"
+	"github.com/chrislusf/seaweedfs/weed/pb/mq_pb"
 	"github.com/chrislusf/seaweedfs/weed/security"
 	"github.com/chrislusf/seaweedfs/weed/util"
 )
@@ -38,8 +38,8 @@ func (mc *MessagingClient) findBroker(tp broker.TopicPartition) (*grpc.ClientCon
 		}
 		defer grpcConnection.Close()
 
-		resp, err := messaging_pb.NewSeaweedMessagingClient(grpcConnection).FindBroker(context.Background(),
-			&messaging_pb.FindBrokerRequest{
+		resp, err := mq_pb.NewSeaweedMessagingClient(grpcConnection).FindBroker(context.Background(),
+			&mq_pb.FindBrokerRequest{
 				Namespace: tp.Namespace,
 				Topic:     tp.Topic,
 				Parition:  tp.Partition,
diff --git a/weed/messaging/msgclient/config.go b/weed/mq/msgclient/config.go
similarity index 62%
rename from weed/messaging/msgclient/config.go
rename to weed/mq/msgclient/config.go
index 2b9eba1a8..263ee856e 100644
--- a/weed/messaging/msgclient/config.go
+++ b/weed/mq/msgclient/config.go
@@ -4,19 +4,19 @@ import (
 	"context"
 	"log"
 
-	"github.com/chrislusf/seaweedfs/weed/messaging/broker"
+	"github.com/chrislusf/seaweedfs/weed/mq/broker"
 	"github.com/chrislusf/seaweedfs/weed/pb"
-	"github.com/chrislusf/seaweedfs/weed/pb/messaging_pb"
+	"github.com/chrislusf/seaweedfs/weed/pb/mq_pb"
 )
 
 func (mc *MessagingClient) configureTopic(tp broker.TopicPartition) error {
 
-	return mc.withAnyBroker(func(client messaging_pb.SeaweedMessagingClient) error {
+	return mc.withAnyBroker(func(client mq_pb.SeaweedMessagingClient) error {
 		_, err := client.ConfigureTopic(context.Background(),
-			&messaging_pb.ConfigureTopicRequest{
+			&mq_pb.ConfigureTopicRequest{
 				Namespace: tp.Namespace,
 				Topic:     tp.Topic,
-				Configuration: &messaging_pb.TopicConfiguration{
+				Configuration: &mq_pb.TopicConfiguration{
 					PartitionCount: 0,
 					Collection:     "",
 					Replication:    "",
@@ -31,9 +31,9 @@ func (mc *MessagingClient) configureTopic(tp broker.TopicPartition) error {
 
 func (mc *MessagingClient) DeleteTopic(namespace, topic string) error {
 
-	return mc.withAnyBroker(func(client messaging_pb.SeaweedMessagingClient) error {
+	return mc.withAnyBroker(func(client mq_pb.SeaweedMessagingClient) error {
 		_, err := client.DeleteTopic(context.Background(),
-			&messaging_pb.DeleteTopicRequest{
+			&mq_pb.DeleteTopicRequest{
 				Namespace: namespace,
 				Topic:     topic,
 			})
@@ -41,7 +41,7 @@ func (mc *MessagingClient) DeleteTopic(namespace, topic string) error {
 	})
 }
 
-func (mc *MessagingClient) withAnyBroker(fn func(client messaging_pb.SeaweedMessagingClient) error) error {
+func (mc *MessagingClient) withAnyBroker(fn func(client mq_pb.SeaweedMessagingClient) error) error {
 
 	var lastErr error
 	for _, broker := range mc.bootstrapBrokers {
@@ -52,7 +52,7 @@ func (mc *MessagingClient) withAnyBroker(fn func(client messaging_pb.SeaweedMess
 		}
 		defer grpcConnection.Close()
 
-		err = fn(messaging_pb.NewSeaweedMessagingClient(grpcConnection))
+		err = fn(mq_pb.NewSeaweedMessagingClient(grpcConnection))
 		if err == nil {
 			return nil
 		}
diff --git a/weed/messaging/msgclient/publisher.go b/weed/mq/msgclient/publisher.go
similarity index 65%
rename from weed/messaging/msgclient/publisher.go
rename to weed/mq/msgclient/publisher.go
index 1aa483ff8..823791d10 100644
--- a/weed/messaging/msgclient/publisher.go
+++ b/weed/mq/msgclient/publisher.go
@@ -6,23 +6,23 @@ import (
 	"github.com/OneOfOne/xxhash"
 	"google.golang.org/grpc"
 
-	"github.com/chrislusf/seaweedfs/weed/messaging/broker"
-	"github.com/chrislusf/seaweedfs/weed/pb/messaging_pb"
+	"github.com/chrislusf/seaweedfs/weed/mq/broker"
+	"github.com/chrislusf/seaweedfs/weed/pb/mq_pb"
 )
 
 type Publisher struct {
-	publishClients     []messaging_pb.SeaweedMessaging_PublishClient
-	topicConfiguration *messaging_pb.TopicConfiguration
+	publishClients     []mq_pb.SeaweedMessaging_PublishClient
+	topicConfiguration *mq_pb.TopicConfiguration
 	messageCount       uint64
 	publisherId        string
 }
 
 func (mc *MessagingClient) NewPublisher(publisherId, namespace, topic string) (*Publisher, error) {
 	// read topic configuration
-	topicConfiguration := &messaging_pb.TopicConfiguration{
+	topicConfiguration := &mq_pb.TopicConfiguration{
 		PartitionCount: 4,
 	}
-	publishClients := make([]messaging_pb.SeaweedMessaging_PublishClient, topicConfiguration.PartitionCount)
+	publishClients := make([]mq_pb.SeaweedMessaging_PublishClient, topicConfiguration.PartitionCount)
 	for i := 0; i < int(topicConfiguration.PartitionCount); i++ {
 		tp := broker.TopicPartition{
 			Namespace: namespace,
@@ -45,16 +45,16 @@ func (mc *MessagingClient) NewPublisher(publisherId, namespace, topic string) (*
 	}, nil
 }
 
-func setupPublisherClient(grpcConnection *grpc.ClientConn, tp broker.TopicPartition) (messaging_pb.SeaweedMessaging_PublishClient, error) {
+func setupPublisherClient(grpcConnection *grpc.ClientConn, tp broker.TopicPartition) (mq_pb.SeaweedMessaging_PublishClient, error) {
 
-	stream, err := messaging_pb.NewSeaweedMessagingClient(grpcConnection).Publish(context.Background())
+	stream, err := mq_pb.NewSeaweedMessagingClient(grpcConnection).Publish(context.Background())
 	if err != nil {
 		return nil, err
 	}
 
 	// send init message
-	err = stream.Send(&messaging_pb.PublishRequest{
-		Init: &messaging_pb.PublishRequest_InitMessage{
+	err = stream.Send(&mq_pb.PublishRequest{
+		Init: &mq_pb.PublishRequest_InitMessage{
 			Namespace: tp.Namespace,
 			Topic:     tp.Topic,
 			Partition: tp.Partition,
@@ -95,14 +95,14 @@ func setupPublisherClient(grpcConnection *grpc.ClientConn, tp broker.TopicPartit
 
 }
 
-func (p *Publisher) Publish(m *messaging_pb.Message) error {
+func (p *Publisher) Publish(m *mq_pb.Message) error {
 	hashValue := p.messageCount
 	p.messageCount++
-	if p.topicConfiguration.Partitoning == messaging_pb.TopicConfiguration_NonNullKeyHash {
+	if p.topicConfiguration.Partitoning == mq_pb.TopicConfiguration_NonNullKeyHash {
 		if m.Key != nil {
 			hashValue = xxhash.Checksum64(m.Key)
 		}
-	} else if p.topicConfiguration.Partitoning == messaging_pb.TopicConfiguration_KeyHash {
+	} else if p.topicConfiguration.Partitoning == mq_pb.TopicConfiguration_KeyHash {
 		hashValue = xxhash.Checksum64(m.Key)
 	} else {
 		// round robin
@@ -112,7 +112,7 @@ func (p *Publisher) Publish(m *messaging_pb.Message) error {
 	if idx < 0 {
 		idx += len(p.publishClients)
 	}
-	return p.publishClients[idx].Send(&messaging_pb.PublishRequest{
+	return p.publishClients[idx].Send(&mq_pb.PublishRequest{
 		Data: m,
 	})
 }
diff --git a/weed/messaging/msgclient/subscriber.go b/weed/mq/msgclient/subscriber.go
similarity index 70%
rename from weed/messaging/msgclient/subscriber.go
rename to weed/mq/msgclient/subscriber.go
index 6c7dc1ab7..f3da40fb3 100644
--- a/weed/messaging/msgclient/subscriber.go
+++ b/weed/mq/msgclient/subscriber.go
@@ -6,23 +6,23 @@ import (
 	"sync"
 	"time"
 
-	"github.com/chrislusf/seaweedfs/weed/messaging/broker"
-	"github.com/chrislusf/seaweedfs/weed/pb/messaging_pb"
+	"github.com/chrislusf/seaweedfs/weed/mq/broker"
+	"github.com/chrislusf/seaweedfs/weed/pb/mq_pb"
 	"google.golang.org/grpc"
 )
 
 type Subscriber struct {
-	subscriberClients []messaging_pb.SeaweedMessaging_SubscribeClient
+	subscriberClients []mq_pb.SeaweedMessaging_SubscribeClient
 	subscriberCancels []context.CancelFunc
 	subscriberId      string
 }
 
 func (mc *MessagingClient) NewSubscriber(subscriberId, namespace, topic string, partitionId int, startTime time.Time) (*Subscriber, error) {
 	// read topic configuration
-	topicConfiguration := &messaging_pb.TopicConfiguration{
+	topicConfiguration := &mq_pb.TopicConfiguration{
 		PartitionCount: 4,
 	}
-	subscriberClients := make([]messaging_pb.SeaweedMessaging_SubscribeClient, topicConfiguration.PartitionCount)
+	subscriberClients := make([]mq_pb.SeaweedMessaging_SubscribeClient, topicConfiguration.PartitionCount)
 	subscriberCancels := make([]context.CancelFunc, topicConfiguration.PartitionCount)
 
 	for i := 0; i < int(topicConfiguration.PartitionCount); i++ {
@@ -54,19 +54,19 @@ func (mc *MessagingClient) NewSubscriber(subscriberId, namespace, topic string,
 	}, nil
 }
 
-func setupSubscriberClient(ctx context.Context, grpcConnection *grpc.ClientConn, tp broker.TopicPartition, subscriberId string, startTime time.Time) (stream messaging_pb.SeaweedMessaging_SubscribeClient, err error) {
-	stream, err = messaging_pb.NewSeaweedMessagingClient(grpcConnection).Subscribe(ctx)
+func setupSubscriberClient(ctx context.Context, grpcConnection *grpc.ClientConn, tp broker.TopicPartition, subscriberId string, startTime time.Time) (stream mq_pb.SeaweedMessaging_SubscribeClient, err error) {
+	stream, err = mq_pb.NewSeaweedMessagingClient(grpcConnection).Subscribe(ctx)
 	if err != nil {
 		return
 	}
 
 	// send init message
-	err = stream.Send(&messaging_pb.SubscriberMessage{
-		Init: &messaging_pb.SubscriberMessage_InitMessage{
+	err = stream.Send(&mq_pb.SubscriberMessage{
+		Init: &mq_pb.SubscriberMessage_InitMessage{
 			Namespace:     tp.Namespace,
 			Topic:         tp.Topic,
 			Partition:     tp.Partition,
-			StartPosition: messaging_pb.SubscriberMessage_InitMessage_TIMESTAMP,
+			StartPosition: mq_pb.SubscriberMessage_InitMessage_TIMESTAMP,
 			TimestampNs:   startTime.UnixNano(),
 			SubscriberId:  subscriberId,
 		},
@@ -78,7 +78,7 @@ func setupSubscriberClient(ctx context.Context, grpcConnection *grpc.ClientConn,
 	return stream, nil
 }
 
-func doSubscribe(subscriberClient messaging_pb.SeaweedMessaging_SubscribeClient, processFn func(m *messaging_pb.Message)) error {
+func doSubscribe(subscriberClient mq_pb.SeaweedMessaging_SubscribeClient, processFn func(m *mq_pb.Message)) error {
 	for {
 		resp, listenErr := subscriberClient.Recv()
 		if listenErr == io.EOF {
@@ -97,12 +97,12 @@ func doSubscribe(subscriberClient messaging_pb.SeaweedMessaging_SubscribeClient,
 }
 
 // Subscribe starts goroutines to process the messages
-func (s *Subscriber) Subscribe(processFn func(m *messaging_pb.Message)) {
+func (s *Subscriber) Subscribe(processFn func(m *mq_pb.Message)) {
 	var wg sync.WaitGroup
 	for i := 0; i < len(s.subscriberClients); i++ {
 		if s.subscriberClients[i] != nil {
 			wg.Add(1)
-			go func(subscriberClient messaging_pb.SeaweedMessaging_SubscribeClient) {
+			go func(subscriberClient mq_pb.SeaweedMessaging_SubscribeClient) {
 				defer wg.Done()
 				doSubscribe(subscriberClient, processFn)
 			}(s.subscriberClients[i])
diff --git a/weed/pb/Makefile b/weed/pb/Makefile
index a8992bde2..01322ffda 100644
--- a/weed/pb/Makefile
+++ b/weed/pb/Makefile
@@ -10,6 +10,6 @@ gen:
 	protoc iam.proto --go_out=./iam_pb --go-grpc_out=./iam_pb --go_opt=paths=source_relative --go-grpc_opt=paths=source_relative
 	protoc mount.proto --go_out=./mount_pb --go-grpc_out=./mount_pb --go_opt=paths=source_relative --go-grpc_opt=paths=source_relative
 	protoc s3.proto --go_out=./s3_pb --go-grpc_out=./s3_pb --go_opt=paths=source_relative --go-grpc_opt=paths=source_relative
-	protoc messaging.proto --go_out=./messaging_pb --go-grpc_out=./messaging_pb --go_opt=paths=source_relative --go-grpc_opt=paths=source_relative
+	protoc mq.proto --go_out=./mq_pb --go-grpc_out=./mq_pb --go_opt=paths=source_relative --go-grpc_opt=paths=source_relative
 	# protoc filer.proto --java_out=../../other/java/client/src/main/java
 	cp filer.proto ../../other/java/client/src/main/proto
diff --git a/weed/pb/grpc_client_server.go b/weed/pb/grpc_client_server.go
index c7cb82a22..0a0d65a87 100644
--- a/weed/pb/grpc_client_server.go
+++ b/weed/pb/grpc_client_server.go
@@ -18,7 +18,7 @@ import (
 
 	"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
 	"github.com/chrislusf/seaweedfs/weed/pb/master_pb"
-	"github.com/chrislusf/seaweedfs/weed/pb/messaging_pb"
+	"github.com/chrislusf/seaweedfs/weed/pb/mq_pb"
 )
 
 const (
@@ -231,10 +231,10 @@ func WithOneOfGrpcMasterClients(streamingMode bool, masterGrpcAddresses map[stri
 	return err
 }
 
-func WithBrokerGrpcClient(streamingMode bool, brokerGrpcAddress string, grpcDialOption grpc.DialOption, fn func(client messaging_pb.SeaweedMessagingClient) error) error {
+func WithBrokerGrpcClient(streamingMode bool, brokerGrpcAddress string, grpcDialOption grpc.DialOption, fn func(client mq_pb.SeaweedMessagingClient) error) error {
 
 	return WithGrpcClient(streamingMode, func(grpcConnection *grpc.ClientConn) error {
-		client := messaging_pb.NewSeaweedMessagingClient(grpcConnection)
+		client := mq_pb.NewSeaweedMessagingClient(grpcConnection)
 		return fn(client)
 	}, brokerGrpcAddress, grpcDialOption)
 
diff --git a/weed/pb/messaging.proto b/weed/pb/messaging.proto
index 04446ad16..a73bc99a6 100644
--- a/weed/pb/messaging.proto
+++ b/weed/pb/messaging.proto
@@ -2,7 +2,7 @@ syntax = "proto3";
 
 package messaging_pb;
 
-option go_package = "github.com/chrislusf/seaweedfs/weed/pb/messaging_pb";
+option go_package = "github.com/chrislusf/seaweedfs/weed/pb/mq_pb";
 option java_package = "seaweedfs.client";
 option java_outer_classname = "MessagingProto";
 
diff --git a/weed/pb/mount_pb/mount.pb.go b/weed/pb/mount_pb/mount.pb.go
index cbaf533fe..642ffe59c 100644
--- a/weed/pb/mount_pb/mount.pb.go
+++ b/weed/pb/mount_pb/mount.pb.go
@@ -143,12 +143,12 @@ func file_mount_proto_rawDescGZIP() []byte {
 
 var file_mount_proto_msgTypes = make([]protoimpl.MessageInfo, 2)
 var file_mount_proto_goTypes = []interface{}{
-	(*ConfigureRequest)(nil),  // 0: messaging_pb.ConfigureRequest
-	(*ConfigureResponse)(nil), // 1: messaging_pb.ConfigureResponse
+	(*ConfigureRequest)(nil),  // 0: mq_pb.ConfigureRequest
+	(*ConfigureResponse)(nil), // 1: mq_pb.ConfigureResponse
 }
 var file_mount_proto_depIdxs = []int32{
-	0, // 0: messaging_pb.SeaweedMount.Configure:input_type -> messaging_pb.ConfigureRequest
-	1, // 1: messaging_pb.SeaweedMount.Configure:output_type -> messaging_pb.ConfigureResponse
+	0, // 0: mq_pb.SeaweedMount.Configure:input_type -> mq_pb.ConfigureRequest
+	1, // 1: mq_pb.SeaweedMount.Configure:output_type -> mq_pb.ConfigureResponse
 	1, // [1:2] is the sub-list for method output_type
 	0, // [0:1] is the sub-list for method input_type
 	0, // [0:0] is the sub-list for extension type_name
diff --git a/weed/pb/mount_pb/mount_grpc.pb.go b/weed/pb/mount_pb/mount_grpc.pb.go
index 41737aa21..1da6542dc 100644
--- a/weed/pb/mount_pb/mount_grpc.pb.go
+++ b/weed/pb/mount_pb/mount_grpc.pb.go
@@ -31,7 +31,7 @@ func NewSeaweedMountClient(cc grpc.ClientConnInterface) SeaweedMountClient {
 
 func (c *seaweedMountClient) Configure(ctx context.Context, in *ConfigureRequest, opts ...grpc.CallOption) (*ConfigureResponse, error) {
 	out := new(ConfigureResponse)
-	err := c.cc.Invoke(ctx, "/messaging_pb.SeaweedMount/Configure", in, out, opts...)
+	err := c.cc.Invoke(ctx, "/mq_pb.SeaweedMount/Configure", in, out, opts...)
 	if err != nil {
 		return nil, err
 	}
@@ -76,7 +76,7 @@ func _SeaweedMount_Configure_Handler(srv interface{}, ctx context.Context, dec f
 	}
 	info := &grpc.UnaryServerInfo{
 		Server:     srv,
-		FullMethod: "/messaging_pb.SeaweedMount/Configure",
+		FullMethod: "/mq_pb.SeaweedMount/Configure",
 	}
 	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
 		return srv.(SeaweedMountServer).Configure(ctx, req.(*ConfigureRequest))
@@ -88,7 +88,7 @@ func _SeaweedMount_Configure_Handler(srv interface{}, ctx context.Context, dec f
 // It's only intended for direct use with grpc.RegisterService,
 // and not to be introspected or modified (even as a copy)
 var SeaweedMount_ServiceDesc = grpc.ServiceDesc{
-	ServiceName: "messaging_pb.SeaweedMount",
+	ServiceName: "mq_pb.SeaweedMount",
 	HandlerType: (*SeaweedMountServer)(nil),
 	Methods: []grpc.MethodDesc{
 		{
diff --git a/weed/pb/messaging_pb/messaging.pb.go b/weed/pb/mq_pb/messaging.pb.go
similarity index 92%
rename from weed/pb/messaging_pb/messaging.pb.go
rename to weed/pb/mq_pb/messaging.pb.go
index 5b9ca1ee3..8de152f1b 100644
--- a/weed/pb/messaging_pb/messaging.pb.go
+++ b/weed/pb/mq_pb/messaging.pb.go
@@ -2,9 +2,9 @@
 // versions:
 // 	protoc-gen-go v1.26.0
 // 	protoc        v3.17.3
-// source: messaging.proto
+// source: mq.proto
 
-package messaging_pb
+package mq_pb
 
 import (
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
@@ -840,7 +840,7 @@ type TopicConfiguration struct {
 	Collection     string                          `protobuf:"bytes,2,opt,name=collection,proto3" json:"collection,omitempty"`
 	Replication    string                          `protobuf:"bytes,3,opt,name=replication,proto3" json:"replication,omitempty"`
 	IsTransient    bool                            `protobuf:"varint,4,opt,name=is_transient,json=isTransient,proto3" json:"is_transient,omitempty"`
-	Partitoning    TopicConfiguration_Partitioning `protobuf:"varint,5,opt,name=partitoning,proto3,enum=messaging_pb.TopicConfiguration_Partitioning" json:"partitoning,omitempty"`
+	Partitoning    TopicConfiguration_Partitioning `protobuf:"varint,5,opt,name=partitoning,proto3,enum=mq_pb.TopicConfiguration_Partitioning" json:"partitoning,omitempty"`
 }
 
 func (x *TopicConfiguration) Reset() {
@@ -918,7 +918,7 @@ type SubscriberMessage_InitMessage struct {
 	Namespace     string                                      `protobuf:"bytes,1,opt,name=namespace,proto3" json:"namespace,omitempty"`
 	Topic         string                                      `protobuf:"bytes,2,opt,name=topic,proto3" json:"topic,omitempty"`
 	Partition     int32                                       `protobuf:"varint,3,opt,name=partition,proto3" json:"partition,omitempty"`
-	StartPosition SubscriberMessage_InitMessage_StartPosition `protobuf:"varint,4,opt,name=startPosition,proto3,enum=messaging_pb.SubscriberMessage_InitMessage_StartPosition" json:"startPosition,omitempty"` // Where to begin consuming from
+	StartPosition SubscriberMessage_InitMessage_StartPosition `protobuf:"varint,4,opt,name=startPosition,proto3,enum=mq_pb.SubscriberMessage_InitMessage_StartPosition" json:"startPosition,omitempty"` // Where to begin consuming from
 	TimestampNs   int64                                       `protobuf:"varint,5,opt,name=timestampNs,proto3" json:"timestampNs,omitempty"`                                                                   // timestamp in nano seconds
 	SubscriberId  string                                      `protobuf:"bytes,6,opt,name=subscriber_id,json=subscriberId,proto3" json:"subscriber_id,omitempty"`                                              // uniquely identify a subscriber to track consumption
 }
@@ -1407,54 +1407,54 @@ func file_messaging_proto_rawDescGZIP() []byte {
 var file_messaging_proto_enumTypes = make([]protoimpl.EnumInfo, 2)
 var file_messaging_proto_msgTypes = make([]protoimpl.MessageInfo, 20)
 var file_messaging_proto_goTypes = []interface{}{
-	(SubscriberMessage_InitMessage_StartPosition)(0), // 0: messaging_pb.SubscriberMessage.InitMessage.StartPosition
-	(TopicConfiguration_Partitioning)(0),             // 1: messaging_pb.TopicConfiguration.Partitioning
-	(*SubscriberMessage)(nil),                        // 2: messaging_pb.SubscriberMessage
-	(*Message)(nil),                                  // 3: messaging_pb.Message
-	(*BrokerMessage)(nil),                            // 4: messaging_pb.BrokerMessage
-	(*PublishRequest)(nil),                           // 5: messaging_pb.PublishRequest
-	(*PublishResponse)(nil),                          // 6: messaging_pb.PublishResponse
-	(*DeleteTopicRequest)(nil),                       // 7: messaging_pb.DeleteTopicRequest
-	(*DeleteTopicResponse)(nil),                      // 8: messaging_pb.DeleteTopicResponse
-	(*ConfigureTopicRequest)(nil),                    // 9: messaging_pb.ConfigureTopicRequest
-	(*ConfigureTopicResponse)(nil),                   // 10: messaging_pb.ConfigureTopicResponse
-	(*GetTopicConfigurationRequest)(nil),             // 11: messaging_pb.GetTopicConfigurationRequest
-	(*GetTopicConfigurationResponse)(nil),            // 12: messaging_pb.GetTopicConfigurationResponse
-	(*FindBrokerRequest)(nil),                        // 13: messaging_pb.FindBrokerRequest
-	(*FindBrokerResponse)(nil),                       // 14: messaging_pb.FindBrokerResponse
-	(*TopicConfiguration)(nil),                       // 15: messaging_pb.TopicConfiguration
-	(*SubscriberMessage_InitMessage)(nil),            // 16: messaging_pb.SubscriberMessage.InitMessage
-	(*SubscriberMessage_AckMessage)(nil),             // 17: messaging_pb.SubscriberMessage.AckMessage
-	nil,                                              // 18: messaging_pb.Message.HeadersEntry
-	(*PublishRequest_InitMessage)(nil),               // 19: messaging_pb.PublishRequest.InitMessage
-	(*PublishResponse_ConfigMessage)(nil),            // 20: messaging_pb.PublishResponse.ConfigMessage
-	(*PublishResponse_RedirectMessage)(nil),          // 21: messaging_pb.PublishResponse.RedirectMessage
+	(SubscriberMessage_InitMessage_StartPosition)(0), // 0: mq_pb.SubscriberMessage.InitMessage.StartPosition
+	(TopicConfiguration_Partitioning)(0),             // 1: mq_pb.TopicConfiguration.Partitioning
+	(*SubscriberMessage)(nil),                        // 2: mq_pb.SubscriberMessage
+	(*Message)(nil),                                  // 3: mq_pb.Message
+	(*BrokerMessage)(nil),                            // 4: mq_pb.BrokerMessage
+	(*PublishRequest)(nil),                           // 5: mq_pb.PublishRequest
+	(*PublishResponse)(nil),                          // 6: mq_pb.PublishResponse
+	(*DeleteTopicRequest)(nil),                       // 7: mq_pb.DeleteTopicRequest
+	(*DeleteTopicResponse)(nil),                      // 8: mq_pb.DeleteTopicResponse
+	(*ConfigureTopicRequest)(nil),                    // 9: mq_pb.ConfigureTopicRequest
+	(*ConfigureTopicResponse)(nil),                   // 10: mq_pb.ConfigureTopicResponse
+	(*GetTopicConfigurationRequest)(nil),             // 11: mq_pb.GetTopicConfigurationRequest
+	(*GetTopicConfigurationResponse)(nil),            // 12: mq_pb.GetTopicConfigurationResponse
+	(*FindBrokerRequest)(nil),                        // 13: mq_pb.FindBrokerRequest
+	(*FindBrokerResponse)(nil),                       // 14: mq_pb.FindBrokerResponse
+	(*TopicConfiguration)(nil),                       // 15: mq_pb.TopicConfiguration
+	(*SubscriberMessage_InitMessage)(nil),            // 16: mq_pb.SubscriberMessage.InitMessage
+	(*SubscriberMessage_AckMessage)(nil),             // 17: mq_pb.SubscriberMessage.AckMessage
+	nil,                                              // 18: mq_pb.Message.HeadersEntry
+	(*PublishRequest_InitMessage)(nil),               // 19: mq_pb.PublishRequest.InitMessage
+	(*PublishResponse_ConfigMessage)(nil),            // 20: mq_pb.PublishResponse.ConfigMessage
+	(*PublishResponse_RedirectMessage)(nil),          // 21: mq_pb.PublishResponse.RedirectMessage
 }
 var file_messaging_proto_depIdxs = []int32{
-	16, // 0: messaging_pb.SubscriberMessage.init:type_name -> messaging_pb.SubscriberMessage.InitMessage
-	17, // 1: messaging_pb.SubscriberMessage.ack:type_name -> messaging_pb.SubscriberMessage.AckMessage
-	18, // 2: messaging_pb.Message.headers:type_name -> messaging_pb.Message.HeadersEntry
-	3,  // 3: messaging_pb.BrokerMessage.data:type_name -> messaging_pb.Message
-	19, // 4: messaging_pb.PublishRequest.init:type_name -> messaging_pb.PublishRequest.InitMessage
-	3,  // 5: messaging_pb.PublishRequest.data:type_name -> messaging_pb.Message
-	20, // 6: messaging_pb.PublishResponse.config:type_name -> messaging_pb.PublishResponse.ConfigMessage
-	21, // 7: messaging_pb.PublishResponse.redirect:type_name -> messaging_pb.PublishResponse.RedirectMessage
-	15, // 8: messaging_pb.ConfigureTopicRequest.configuration:type_name -> messaging_pb.TopicConfiguration
-	15, // 9: messaging_pb.GetTopicConfigurationResponse.configuration:type_name -> messaging_pb.TopicConfiguration
-	1,  // 10: messaging_pb.TopicConfiguration.partitoning:type_name -> messaging_pb.TopicConfiguration.Partitioning
-	0,  // 11: messaging_pb.SubscriberMessage.InitMessage.startPosition:type_name -> messaging_pb.SubscriberMessage.InitMessage.StartPosition
-	2,  // 12: messaging_pb.SeaweedMessaging.Subscribe:input_type -> messaging_pb.SubscriberMessage
-	5,  // 13: messaging_pb.SeaweedMessaging.Publish:input_type -> messaging_pb.PublishRequest
-	7,  // 14: messaging_pb.SeaweedMessaging.DeleteTopic:input_type -> messaging_pb.DeleteTopicRequest
-	9,  // 15: messaging_pb.SeaweedMessaging.ConfigureTopic:input_type -> messaging_pb.ConfigureTopicRequest
-	11, // 16: messaging_pb.SeaweedMessaging.GetTopicConfiguration:input_type -> messaging_pb.GetTopicConfigurationRequest
-	13, // 17: messaging_pb.SeaweedMessaging.FindBroker:input_type -> messaging_pb.FindBrokerRequest
-	4,  // 18: messaging_pb.SeaweedMessaging.Subscribe:output_type -> messaging_pb.BrokerMessage
-	6,  // 19: messaging_pb.SeaweedMessaging.Publish:output_type -> messaging_pb.PublishResponse
-	8,  // 20: messaging_pb.SeaweedMessaging.DeleteTopic:output_type -> messaging_pb.DeleteTopicResponse
-	10, // 21: messaging_pb.SeaweedMessaging.ConfigureTopic:output_type -> messaging_pb.ConfigureTopicResponse
-	12, // 22: messaging_pb.SeaweedMessaging.GetTopicConfiguration:output_type -> messaging_pb.GetTopicConfigurationResponse
-	14, // 23: messaging_pb.SeaweedMessaging.FindBroker:output_type -> messaging_pb.FindBrokerResponse
+	16, // 0: mq_pb.SubscriberMessage.init:type_name -> mq_pb.SubscriberMessage.InitMessage
+	17, // 1: mq_pb.SubscriberMessage.ack:type_name -> mq_pb.SubscriberMessage.AckMessage
+	18, // 2: mq_pb.Message.headers:type_name -> mq_pb.Message.HeadersEntry
+	3,  // 3: mq_pb.BrokerMessage.data:type_name -> mq_pb.Message
+	19, // 4: mq_pb.PublishRequest.init:type_name -> mq_pb.PublishRequest.InitMessage
+	3,  // 5: mq_pb.PublishRequest.data:type_name -> mq_pb.Message
+	20, // 6: mq_pb.PublishResponse.config:type_name -> mq_pb.PublishResponse.ConfigMessage
+	21, // 7: mq_pb.PublishResponse.redirect:type_name -> mq_pb.PublishResponse.RedirectMessage
+	15, // 8: mq_pb.ConfigureTopicRequest.configuration:type_name -> mq_pb.TopicConfiguration
+	15, // 9: mq_pb.GetTopicConfigurationResponse.configuration:type_name -> mq_pb.TopicConfiguration
+	1,  // 10: mq_pb.TopicConfiguration.partitoning:type_name -> mq_pb.TopicConfiguration.Partitioning
+	0,  // 11: mq_pb.SubscriberMessage.InitMessage.startPosition:type_name -> mq_pb.SubscriberMessage.InitMessage.StartPosition
+	2,  // 12: mq_pb.SeaweedMessaging.Subscribe:input_type -> mq_pb.SubscriberMessage
+	5,  // 13: mq_pb.SeaweedMessaging.Publish:input_type -> mq_pb.PublishRequest
+	7,  // 14: mq_pb.SeaweedMessaging.DeleteTopic:input_type -> mq_pb.DeleteTopicRequest
+	9,  // 15: mq_pb.SeaweedMessaging.ConfigureTopic:input_type -> mq_pb.ConfigureTopicRequest
+	11, // 16: mq_pb.SeaweedMessaging.GetTopicConfiguration:input_type -> mq_pb.GetTopicConfigurationRequest
+	13, // 17: mq_pb.SeaweedMessaging.FindBroker:input_type -> mq_pb.FindBrokerRequest
+	4,  // 18: mq_pb.SeaweedMessaging.Subscribe:output_type -> mq_pb.BrokerMessage
+	6,  // 19: mq_pb.SeaweedMessaging.Publish:output_type -> mq_pb.PublishResponse
+	8,  // 20: mq_pb.SeaweedMessaging.DeleteTopic:output_type -> mq_pb.DeleteTopicResponse
+	10, // 21: mq_pb.SeaweedMessaging.ConfigureTopic:output_type -> mq_pb.ConfigureTopicResponse
+	12, // 22: mq_pb.SeaweedMessaging.GetTopicConfiguration:output_type -> mq_pb.GetTopicConfigurationResponse
+	14, // 23: mq_pb.SeaweedMessaging.FindBroker:output_type -> mq_pb.FindBrokerResponse
 	18, // [18:24] is the sub-list for method output_type
 	12, // [12:18] is the sub-list for method input_type
 	12, // [12:12] is the sub-list for extension type_name
diff --git a/weed/pb/messaging_pb/messaging_grpc.pb.go b/weed/pb/mq_pb/messaging_grpc.pb.go
similarity index 93%
rename from weed/pb/messaging_pb/messaging_grpc.pb.go
rename to weed/pb/mq_pb/messaging_grpc.pb.go
index 234cffa95..0249a0b9c 100644
--- a/weed/pb/messaging_pb/messaging_grpc.pb.go
+++ b/weed/pb/mq_pb/messaging_grpc.pb.go
@@ -1,6 +1,6 @@
 // Code generated by protoc-gen-go-grpc. DO NOT EDIT.
 
-package messaging_pb
+package mq_pb
 
 import (
 	context "context"
@@ -35,7 +35,7 @@ func NewSeaweedMessagingClient(cc grpc.ClientConnInterface) SeaweedMessagingClie
 }
 
 func (c *seaweedMessagingClient) Subscribe(ctx context.Context, opts ...grpc.CallOption) (SeaweedMessaging_SubscribeClient, error) {
-	stream, err := c.cc.NewStream(ctx, &SeaweedMessaging_ServiceDesc.Streams[0], "/messaging_pb.SeaweedMessaging/Subscribe", opts...)
+	stream, err := c.cc.NewStream(ctx, &SeaweedMessaging_ServiceDesc.Streams[0], "/mq_pb.SeaweedMessaging/Subscribe", opts...)
 	if err != nil {
 		return nil, err
 	}
@@ -66,7 +66,7 @@ func (x *seaweedMessagingSubscribeClient) Recv() (*BrokerMessage, error) {
 }
 
 func (c *seaweedMessagingClient) Publish(ctx context.Context, opts ...grpc.CallOption) (SeaweedMessaging_PublishClient, error) {
-	stream, err := c.cc.NewStream(ctx, &SeaweedMessaging_ServiceDesc.Streams[1], "/messaging_pb.SeaweedMessaging/Publish", opts...)
+	stream, err := c.cc.NewStream(ctx, &SeaweedMessaging_ServiceDesc.Streams[1], "/mq_pb.SeaweedMessaging/Publish", opts...)
 	if err != nil {
 		return nil, err
 	}
@@ -98,7 +98,7 @@ func (x *seaweedMessagingPublishClient) Recv() (*PublishResponse, error) {
 
 func (c *seaweedMessagingClient) DeleteTopic(ctx context.Context, in *DeleteTopicRequest, opts ...grpc.CallOption) (*DeleteTopicResponse, error) {
 	out := new(DeleteTopicResponse)
-	err := c.cc.Invoke(ctx, "/messaging_pb.SeaweedMessaging/DeleteTopic", in, out, opts...)
+	err := c.cc.Invoke(ctx, "/mq_pb.SeaweedMessaging/DeleteTopic", in, out, opts...)
 	if err != nil {
 		return nil, err
 	}
@@ -107,7 +107,7 @@ func (c *seaweedMessagingClient) DeleteTopic(ctx context.Context, in *DeleteTopi
 
 func (c *seaweedMessagingClient) ConfigureTopic(ctx context.Context, in *ConfigureTopicRequest, opts ...grpc.CallOption) (*ConfigureTopicResponse, error) {
 	out := new(ConfigureTopicResponse)
-	err := c.cc.Invoke(ctx, "/messaging_pb.SeaweedMessaging/ConfigureTopic", in, out, opts...)
+	err := c.cc.Invoke(ctx, "/mq_pb.SeaweedMessaging/ConfigureTopic", in, out, opts...)
 	if err != nil {
 		return nil, err
 	}
@@ -116,7 +116,7 @@ func (c *seaweedMessagingClient) ConfigureTopic(ctx context.Context, in *Configu
 
 func (c *seaweedMessagingClient) GetTopicConfiguration(ctx context.Context, in *GetTopicConfigurationRequest, opts ...grpc.CallOption) (*GetTopicConfigurationResponse, error) {
 	out := new(GetTopicConfigurationResponse)
-	err := c.cc.Invoke(ctx, "/messaging_pb.SeaweedMessaging/GetTopicConfiguration", in, out, opts...)
+	err := c.cc.Invoke(ctx, "/mq_pb.SeaweedMessaging/GetTopicConfiguration", in, out, opts...)
 	if err != nil {
 		return nil, err
 	}
@@ -125,7 +125,7 @@ func (c *seaweedMessagingClient) GetTopicConfiguration(ctx context.Context, in *
 
 func (c *seaweedMessagingClient) FindBroker(ctx context.Context, in *FindBrokerRequest, opts ...grpc.CallOption) (*FindBrokerResponse, error) {
 	out := new(FindBrokerResponse)
-	err := c.cc.Invoke(ctx, "/messaging_pb.SeaweedMessaging/FindBroker", in, out, opts...)
+	err := c.cc.Invoke(ctx, "/mq_pb.SeaweedMessaging/FindBroker", in, out, opts...)
 	if err != nil {
 		return nil, err
 	}
@@ -242,7 +242,7 @@ func _SeaweedMessaging_DeleteTopic_Handler(srv interface{}, ctx context.Context,
 	}
 	info := &grpc.UnaryServerInfo{
 		Server:     srv,
-		FullMethod: "/messaging_pb.SeaweedMessaging/DeleteTopic",
+		FullMethod: "/mq_pb.SeaweedMessaging/DeleteTopic",
 	}
 	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
 		return srv.(SeaweedMessagingServer).DeleteTopic(ctx, req.(*DeleteTopicRequest))
@@ -260,7 +260,7 @@ func _SeaweedMessaging_ConfigureTopic_Handler(srv interface{}, ctx context.Conte
 	}
 	info := &grpc.UnaryServerInfo{
 		Server:     srv,
-		FullMethod: "/messaging_pb.SeaweedMessaging/ConfigureTopic",
+		FullMethod: "/mq_pb.SeaweedMessaging/ConfigureTopic",
 	}
 	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
 		return srv.(SeaweedMessagingServer).ConfigureTopic(ctx, req.(*ConfigureTopicRequest))
@@ -278,7 +278,7 @@ func _SeaweedMessaging_GetTopicConfiguration_Handler(srv interface{}, ctx contex
 	}
 	info := &grpc.UnaryServerInfo{
 		Server:     srv,
-		FullMethod: "/messaging_pb.SeaweedMessaging/GetTopicConfiguration",
+		FullMethod: "/mq_pb.SeaweedMessaging/GetTopicConfiguration",
 	}
 	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
 		return srv.(SeaweedMessagingServer).GetTopicConfiguration(ctx, req.(*GetTopicConfigurationRequest))
@@ -296,7 +296,7 @@ func _SeaweedMessaging_FindBroker_Handler(srv interface{}, ctx context.Context,
 	}
 	info := &grpc.UnaryServerInfo{
 		Server:     srv,
-		FullMethod: "/messaging_pb.SeaweedMessaging/FindBroker",
+		FullMethod: "/mq_pb.SeaweedMessaging/FindBroker",
 	}
 	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
 		return srv.(SeaweedMessagingServer).FindBroker(ctx, req.(*FindBrokerRequest))
@@ -308,7 +308,7 @@ func _SeaweedMessaging_FindBroker_Handler(srv interface{}, ctx context.Context,
 // It's only intended for direct use with grpc.RegisterService,
 // and not to be introspected or modified (even as a copy)
 var SeaweedMessaging_ServiceDesc = grpc.ServiceDesc{
-	ServiceName: "messaging_pb.SeaweedMessaging",
+	ServiceName: "mq_pb.SeaweedMessaging",
 	HandlerType: (*SeaweedMessagingServer)(nil),
 	Methods: []grpc.MethodDesc{
 		{
@@ -342,5 +342,5 @@ var SeaweedMessaging_ServiceDesc = grpc.ServiceDesc{
 			ClientStreams: true,
 		},
 	},
-	Metadata: "messaging.proto",
+	Metadata: "mq.proto",
 }
diff --git a/weed/pb/s3_pb/s3.pb.go b/weed/pb/s3_pb/s3.pb.go
index c1bd23556..9923961a8 100644
--- a/weed/pb/s3_pb/s3.pb.go
+++ b/weed/pb/s3_pb/s3.pb.go
@@ -283,20 +283,20 @@ func file_s3_proto_rawDescGZIP() []byte {
 
 var file_s3_proto_msgTypes = make([]protoimpl.MessageInfo, 6)
 var file_s3_proto_goTypes = []interface{}{
-	(*S3ConfigureRequest)(nil),      // 0: messaging_pb.S3ConfigureRequest
-	(*S3ConfigureResponse)(nil),     // 1: messaging_pb.S3ConfigureResponse
-	(*S3CircuitBreakerConfig)(nil),  // 2: messaging_pb.S3CircuitBreakerConfig
-	(*S3CircuitBreakerOptions)(nil), // 3: messaging_pb.S3CircuitBreakerOptions
-	nil,                             // 4: messaging_pb.S3CircuitBreakerConfig.BucketsEntry
-	nil,                             // 5: messaging_pb.S3CircuitBreakerOptions.ActionsEntry
+	(*S3ConfigureRequest)(nil),      // 0: mq_pb.S3ConfigureRequest
+	(*S3ConfigureResponse)(nil),     // 1: mq_pb.S3ConfigureResponse
+	(*S3CircuitBreakerConfig)(nil),  // 2: mq_pb.S3CircuitBreakerConfig
+	(*S3CircuitBreakerOptions)(nil), // 3: mq_pb.S3CircuitBreakerOptions
+	nil,                             // 4: mq_pb.S3CircuitBreakerConfig.BucketsEntry
+	nil,                             // 5: mq_pb.S3CircuitBreakerOptions.ActionsEntry
 }
 var file_s3_proto_depIdxs = []int32{
-	3, // 0: messaging_pb.S3CircuitBreakerConfig.global:type_name -> messaging_pb.S3CircuitBreakerOptions
-	4, // 1: messaging_pb.S3CircuitBreakerConfig.buckets:type_name -> messaging_pb.S3CircuitBreakerConfig.BucketsEntry
-	5, // 2: messaging_pb.S3CircuitBreakerOptions.actions:type_name -> messaging_pb.S3CircuitBreakerOptions.ActionsEntry
-	3, // 3: messaging_pb.S3CircuitBreakerConfig.BucketsEntry.value:type_name -> messaging_pb.S3CircuitBreakerOptions
-	0, // 4: messaging_pb.SeaweedS3.Configure:input_type -> messaging_pb.S3ConfigureRequest
-	1, // 5: messaging_pb.SeaweedS3.Configure:output_type -> messaging_pb.S3ConfigureResponse
+	3, // 0: mq_pb.S3CircuitBreakerConfig.global:type_name -> mq_pb.S3CircuitBreakerOptions
+	4, // 1: mq_pb.S3CircuitBreakerConfig.buckets:type_name -> mq_pb.S3CircuitBreakerConfig.BucketsEntry
+	5, // 2: mq_pb.S3CircuitBreakerOptions.actions:type_name -> mq_pb.S3CircuitBreakerOptions.ActionsEntry
+	3, // 3: mq_pb.S3CircuitBreakerConfig.BucketsEntry.value:type_name -> mq_pb.S3CircuitBreakerOptions
+	0, // 4: mq_pb.SeaweedS3.Configure:input_type -> mq_pb.S3ConfigureRequest
+	1, // 5: mq_pb.SeaweedS3.Configure:output_type -> mq_pb.S3ConfigureResponse
 	5, // [5:6] is the sub-list for method output_type
 	4, // [4:5] is the sub-list for method input_type
 	4, // [4:4] is the sub-list for extension type_name
diff --git a/weed/pb/s3_pb/s3_grpc.pb.go b/weed/pb/s3_pb/s3_grpc.pb.go
index 1bc956be6..c00268bad 100644
--- a/weed/pb/s3_pb/s3_grpc.pb.go
+++ b/weed/pb/s3_pb/s3_grpc.pb.go
@@ -31,7 +31,7 @@ func NewSeaweedS3Client(cc grpc.ClientConnInterface) SeaweedS3Client {
 
 func (c *seaweedS3Client) Configure(ctx context.Context, in *S3ConfigureRequest, opts ...grpc.CallOption) (*S3ConfigureResponse, error) {
 	out := new(S3ConfigureResponse)
-	err := c.cc.Invoke(ctx, "/messaging_pb.SeaweedS3/Configure", in, out, opts...)
+	err := c.cc.Invoke(ctx, "/mq_pb.SeaweedS3/Configure", in, out, opts...)
 	if err != nil {
 		return nil, err
 	}
@@ -76,7 +76,7 @@ func _SeaweedS3_Configure_Handler(srv interface{}, ctx context.Context, dec func
 	}
 	info := &grpc.UnaryServerInfo{
 		Server:     srv,
-		FullMethod: "/messaging_pb.SeaweedS3/Configure",
+		FullMethod: "/mq_pb.SeaweedS3/Configure",
 	}
 	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
 		return srv.(SeaweedS3Server).Configure(ctx, req.(*S3ConfigureRequest))
@@ -88,7 +88,7 @@ func _SeaweedS3_Configure_Handler(srv interface{}, ctx context.Context, dec func
 // It's only intended for direct use with grpc.RegisterService,
 // and not to be introspected or modified (even as a copy)
 var SeaweedS3_ServiceDesc = grpc.ServiceDesc{
-	ServiceName: "messaging_pb.SeaweedS3",
+	ServiceName: "mq_pb.SeaweedS3",
 	HandlerType: (*SeaweedS3Server)(nil),
 	Methods: []grpc.MethodDesc{
 		{
diff --git a/weed/util/log_buffer/log_read.go b/weed/util/log_buffer/log_read.go
index 99532b47b..35bc8ffd5 100644
--- a/weed/util/log_buffer/log_read.go
+++ b/weed/util/log_buffer/log_read.go
@@ -68,7 +68,7 @@ func (logBuffer *LogBuffer) LoopProcessLogData(readerName string, startReadTime
 
 			logEntry := &filer_pb.LogEntry{}
 			if err = proto.Unmarshal(entryData, logEntry); err != nil {
-				glog.Errorf("unexpected unmarshal messaging_pb.Message: %v", err)
+				glog.Errorf("unexpected unmarshal mq_pb.Message: %v", err)
 				pos += 4 + int(size)
 				continue
 			}

From ffc2c0a2ef3652159801faa568c12609f2702dbc Mon Sep 17 00:00:00 2001
From: chrislu <chris.lu@gmail.com>
Date: Fri, 1 Jul 2022 22:44:28 -0700
Subject: [PATCH 04/17] renaming

---
 weed/mq/broker/broker_append.go                | 10 +++++-----
 weed/mq/broker/broker_grpc_server_subscribe.go |  4 ++--
 weed/mq/broker/broker_server.go                | 16 ++++++++--------
 weed/mq/broker/topic_manager.go                |  4 ++--
 4 files changed, 17 insertions(+), 17 deletions(-)

diff --git a/weed/mq/broker/broker_append.go b/weed/mq/broker/broker_append.go
index 4f3af0ff8..c8e0da93c 100644
--- a/weed/mq/broker/broker_append.go
+++ b/weed/mq/broker/broker_append.go
@@ -14,7 +14,7 @@ import (
 	"github.com/chrislusf/seaweedfs/weed/util"
 )
 
-func (broker *MessageBroker) appendToFile(targetFile string, topicConfig *mq_pb.TopicConfiguration, data []byte) error {
+func (broker *MessageQueueBroker) appendToFile(targetFile string, topicConfig *mq_pb.TopicConfiguration, data []byte) error {
 
 	assignResult, uploadResult, err2 := broker.assignAndUpload(topicConfig, data)
 	if err2 != nil {
@@ -46,7 +46,7 @@ func (broker *MessageBroker) appendToFile(targetFile string, topicConfig *mq_pb.
 	return nil
 }
 
-func (broker *MessageBroker) assignAndUpload(topicConfig *mq_pb.TopicConfiguration, data []byte) (*operation.AssignResult, *operation.UploadResult, error) {
+func (broker *MessageQueueBroker) assignAndUpload(topicConfig *mq_pb.TopicConfiguration, data []byte) (*operation.AssignResult, *operation.UploadResult, error) {
 
 	var assignResult = &operation.AssignResult{}
 
@@ -106,9 +106,9 @@ func (broker *MessageBroker) assignAndUpload(topicConfig *mq_pb.TopicConfigurati
 	return assignResult, uploadResult, nil
 }
 
-var _ = filer_pb.FilerClient(&MessageBroker{})
+var _ = filer_pb.FilerClient(&MessageQueueBroker{})
 
-func (broker *MessageBroker) WithFilerClient(streamingMode bool, fn func(filer_pb.SeaweedFilerClient) error) (err error) {
+func (broker *MessageQueueBroker) WithFilerClient(streamingMode bool, fn func(filer_pb.SeaweedFilerClient) error) (err error) {
 
 	for _, filer := range broker.option.Filers {
 		if err = pb.WithFilerClient(streamingMode, filer, broker.grpcDialOption, fn); err != nil {
@@ -125,6 +125,6 @@ func (broker *MessageBroker) WithFilerClient(streamingMode bool, fn func(filer_p
 
 }
 
-func (broker *MessageBroker) AdjustedUrl(location *filer_pb.Location) string {
+func (broker *MessageQueueBroker) AdjustedUrl(location *filer_pb.Location) string {
 	return location.Url
 }
diff --git a/weed/mq/broker/broker_grpc_server_subscribe.go b/weed/mq/broker/broker_grpc_server_subscribe.go
index 1a9c62d75..3743218b1 100644
--- a/weed/mq/broker/broker_grpc_server_subscribe.go
+++ b/weed/mq/broker/broker_grpc_server_subscribe.go
@@ -16,7 +16,7 @@ import (
 	"github.com/chrislusf/seaweedfs/weed/pb/mq_pb"
 )
 
-func (broker *MessageBroker) Subscribe(stream mq_pb.SeaweedMessaging_SubscribeServer) error {
+func (broker *MessageQueueBroker) Subscribe(stream mq_pb.SeaweedMessaging_SubscribeServer) error {
 
 	// process initial request
 	in, err := stream.Recv()
@@ -138,7 +138,7 @@ func (broker *MessageBroker) Subscribe(stream mq_pb.SeaweedMessaging_SubscribeSe
 
 }
 
-func (broker *MessageBroker) readPersistedLogBuffer(tp *TopicPartition, startTime time.Time, eachLogEntryFn func(logEntry *filer_pb.LogEntry) error) (err error) {
+func (broker *MessageQueueBroker) readPersistedLogBuffer(tp *TopicPartition, startTime time.Time, eachLogEntryFn func(logEntry *filer_pb.LogEntry) error) (err error) {
 	startTime = startTime.UTC()
 	startDate := fmt.Sprintf("%04d-%02d-%02d", startTime.Year(), startTime.Month(), startTime.Day())
 	startHourMinute := fmt.Sprintf("%02d-%02d", startTime.Hour(), startTime.Minute())
diff --git a/weed/mq/broker/broker_server.go b/weed/mq/broker/broker_server.go
index 5aa5285c9..3fd01fb53 100644
--- a/weed/mq/broker/broker_server.go
+++ b/weed/mq/broker/broker_server.go
@@ -13,7 +13,7 @@ import (
 	"github.com/chrislusf/seaweedfs/weed/pb/master_pb"
 )
 
-type MessageBrokerOption struct {
+type MessageQueueBrokerOption struct {
 	Filers             []pb.ServerAddress
 	DefaultReplication string
 	MaxMB              int
@@ -22,16 +22,16 @@ type MessageBrokerOption struct {
 	Cipher             bool
 }
 
-type MessageBroker struct {
+type MessageQueueBroker struct {
 	mq_pb.UnimplementedSeaweedMessagingServer
-	option         *MessageBrokerOption
+	option         *MessageQueueBrokerOption
 	grpcDialOption grpc.DialOption
 	topicManager   *TopicManager
 }
 
-func NewMessageBroker(option *MessageBrokerOption, grpcDialOption grpc.DialOption) (messageBroker *MessageBroker, err error) {
+func NewMessageBroker(option *MessageQueueBrokerOption, grpcDialOption grpc.DialOption) (messageBroker *MessageQueueBroker, err error) {
 
-	messageBroker = &MessageBroker{
+	messageBroker = &MessageQueueBroker{
 		option:         option,
 		grpcDialOption: grpcDialOption,
 	}
@@ -45,7 +45,7 @@ func NewMessageBroker(option *MessageBrokerOption, grpcDialOption grpc.DialOptio
 	return messageBroker, nil
 }
 
-func (broker *MessageBroker) keepConnectedToOneFiler() {
+func (broker *MessageQueueBroker) keepConnectedToOneFiler() {
 
 	for {
 		for _, filer := range broker.option.Filers {
@@ -101,13 +101,13 @@ func (broker *MessageBroker) keepConnectedToOneFiler() {
 
 }
 
-func (broker *MessageBroker) withFilerClient(streamingMode bool, filer pb.ServerAddress, fn func(filer_pb.SeaweedFilerClient) error) error {
+func (broker *MessageQueueBroker) withFilerClient(streamingMode bool, filer pb.ServerAddress, fn func(filer_pb.SeaweedFilerClient) error) error {
 
 	return pb.WithFilerClient(streamingMode, filer, broker.grpcDialOption, fn)
 
 }
 
-func (broker *MessageBroker) withMasterClient(streamingMode bool, master pb.ServerAddress, fn func(client master_pb.SeaweedClient) error) error {
+func (broker *MessageQueueBroker) withMasterClient(streamingMode bool, master pb.ServerAddress, fn func(client master_pb.SeaweedClient) error) error {
 
 	return pb.WithMasterClient(streamingMode, master, broker.grpcDialOption, func(client master_pb.SeaweedClient) error {
 		return fn(client)
diff --git a/weed/mq/broker/topic_manager.go b/weed/mq/broker/topic_manager.go
index 1acf085fa..34f063d9a 100644
--- a/weed/mq/broker/topic_manager.go
+++ b/weed/mq/broker/topic_manager.go
@@ -36,10 +36,10 @@ type TopicControl struct {
 type TopicManager struct {
 	sync.Mutex
 	topicControls map[TopicPartition]*TopicControl
-	broker        *MessageBroker
+	broker        *MessageQueueBroker
 }
 
-func NewTopicManager(messageBroker *MessageBroker) *TopicManager {
+func NewTopicManager(messageBroker *MessageQueueBroker) *TopicManager {
 	return &TopicManager{
 		topicControls: make(map[TopicPartition]*TopicControl),
 		broker:        messageBroker,

From 857a42565ea167a59551ffe8bf9b6586573b3120 Mon Sep 17 00:00:00 2001
From: chrislu <chris.lu@gmail.com>
Date: Fri, 1 Jul 2022 23:34:51 -0700
Subject: [PATCH 05/17] cluster.ps can list brokers

---
 weed/command/command.go                       |  4 +--
 weed/command/mq_broker.go                     |  8 +++++-
 weed/command/server.go                        |  1 +
 weed/mq/broker/broker_grpc_server.go          |  6 ++---
 .../mq/broker/broker_grpc_server_discovery.go |  4 +--
 weed/mq/broker/broker_grpc_server_publish.go  |  2 +-
 weed/mq/broker/broker_server.go               | 19 +++++++++-----
 weed/shell/command_cluster_ps.go              | 26 +++++++++++++++++++
 8 files changed, 55 insertions(+), 15 deletions(-)

diff --git a/weed/command/command.go b/weed/command/command.go
index abd1b63e9..512cd6f8f 100644
--- a/weed/command/command.go
+++ b/weed/command/command.go
@@ -28,12 +28,12 @@ var Commands = []*Command{
 	cmdFilerSynchronize,
 	cmdFix,
 	cmdFuse,
+	cmdIam,
 	cmdMaster,
 	cmdMasterFollower,
 	cmdMount,
-	cmdS3,
-	cmdIam,
 	cmdMqBroker,
+	cmdS3,
 	cmdScaffold,
 	cmdServer,
 	cmdShell,
diff --git a/weed/command/mq_broker.go b/weed/command/mq_broker.go
index da7f59596..c87cccd2c 100644
--- a/weed/command/mq_broker.go
+++ b/weed/command/mq_broker.go
@@ -23,6 +23,8 @@ var (
 )
 
 type MessageQueueBrokerOptions struct {
+	masters    *string
+	filerGroup *string
 	filer      *string
 	ip         *string
 	port       *int
@@ -32,7 +34,9 @@ type MessageQueueBrokerOptions struct {
 
 func init() {
 	cmdMqBroker.Run = runMqBroker // break init cycle
+	mqBrokerStandaloneOptions.masters = cmdMqBroker.Flag.String("master", "localhost:9333", "comma-separated master servers")
 	mqBrokerStandaloneOptions.filer = cmdMqBroker.Flag.String("filer", "localhost:8888", "filer server address")
+	mqBrokerStandaloneOptions.filerGroup = cmdMqBroker.Flag.String("filerGroup", "", "share metadata with other filers in the same filerGroup")
 	mqBrokerStandaloneOptions.ip = cmdMqBroker.Flag.String("ip", util.DetectedHostAddress(), "broker host address")
 	mqBrokerStandaloneOptions.port = cmdMqBroker.Flag.Int("port", 17777, "broker gRPC listen port")
 	mqBrokerStandaloneOptions.cpuprofile = cmdMqBroker.Flag.String("cpuprofile", "", "cpu profile output file")
@@ -85,7 +89,9 @@ func (mqBrokerOpt *MessageQueueBrokerOptions) startQueueServer() bool {
 		}
 	}
 
-	qs, err := broker.NewMessageBroker(&broker.MessageBrokerOption{
+	qs, err := broker.NewMessageBroker(&broker.MessageQueueBrokerOption{
+		Masters:            pb.ServerAddresses(*mqBrokerOpt.masters).ToAddressMap(),
+		FilerGroup:         *mqBrokerOpt.filerGroup,
 		Filers:             []pb.ServerAddress{filerAddress},
 		DefaultReplication: "",
 		MaxMB:              0,
diff --git a/weed/command/server.go b/weed/command/server.go
index 7c14fd14f..2c363087c 100644
--- a/weed/command/server.go
+++ b/weed/command/server.go
@@ -225,6 +225,7 @@ func runServer(cmd *Command, args []string) bool {
 	iamOptions.filer = &filerAddress
 	webdavOptions.filer = &filerAddress
 	mqBrokerOptions.filer = &filerAddress
+	mqBrokerOptions.filerGroup = filerOptions.filerGroup
 
 	go stats_collect.StartMetricsServer(*serverMetricsHttpPort)
 
diff --git a/weed/mq/broker/broker_grpc_server.go b/weed/mq/broker/broker_grpc_server.go
index 9aa9b1908..2cb4187ae 100644
--- a/weed/mq/broker/broker_grpc_server.go
+++ b/weed/mq/broker/broker_grpc_server.go
@@ -9,11 +9,11 @@ import (
 	"github.com/chrislusf/seaweedfs/weed/pb/mq_pb"
 )
 
-func (broker *MessageBroker) ConfigureTopic(c context.Context, request *mq_pb.ConfigureTopicRequest) (*mq_pb.ConfigureTopicResponse, error) {
+func (broker *MessageQueueBroker) ConfigureTopic(c context.Context, request *mq_pb.ConfigureTopicRequest) (*mq_pb.ConfigureTopicResponse, error) {
 	panic("implement me")
 }
 
-func (broker *MessageBroker) DeleteTopic(c context.Context, request *mq_pb.DeleteTopicRequest) (*mq_pb.DeleteTopicResponse, error) {
+func (broker *MessageQueueBroker) DeleteTopic(c context.Context, request *mq_pb.DeleteTopicRequest) (*mq_pb.DeleteTopicResponse, error) {
 	resp := &mq_pb.DeleteTopicResponse{}
 	dir, entry := genTopicDirEntry(request.Namespace, request.Topic)
 	if exists, err := filer_pb.Exists(broker, dir, entry, true); err != nil {
@@ -24,7 +24,7 @@ func (broker *MessageBroker) DeleteTopic(c context.Context, request *mq_pb.Delet
 	return resp, nil
 }
 
-func (broker *MessageBroker) GetTopicConfiguration(c context.Context, request *mq_pb.GetTopicConfigurationRequest) (*mq_pb.GetTopicConfigurationResponse, error) {
+func (broker *MessageQueueBroker) GetTopicConfiguration(c context.Context, request *mq_pb.GetTopicConfigurationRequest) (*mq_pb.GetTopicConfigurationResponse, error) {
 	panic("implement me")
 }
 
diff --git a/weed/mq/broker/broker_grpc_server_discovery.go b/weed/mq/broker/broker_grpc_server_discovery.go
index 0c8d70e68..e276091a9 100644
--- a/weed/mq/broker/broker_grpc_server_discovery.go
+++ b/weed/mq/broker/broker_grpc_server_discovery.go
@@ -26,7 +26,7 @@ If one of the pub or sub connects very late, and the system topo changed quite a
 
 */
 
-func (broker *MessageBroker) FindBroker(c context.Context, request *mq_pb.FindBrokerRequest) (*mq_pb.FindBrokerResponse, error) {
+func (broker *MessageQueueBroker) FindBroker(c context.Context, request *mq_pb.FindBrokerRequest) (*mq_pb.FindBrokerResponse, error) {
 
 	t := &mq_pb.FindBrokerResponse{}
 	var peers []string
@@ -61,7 +61,7 @@ func (broker *MessageBroker) FindBroker(c context.Context, request *mq_pb.FindBr
 
 }
 
-func (broker *MessageBroker) checkFilers() {
+func (broker *MessageQueueBroker) checkFilers() {
 
 	// contact a filer about masters
 	var masters []pb.ServerAddress
diff --git a/weed/mq/broker/broker_grpc_server_publish.go b/weed/mq/broker/broker_grpc_server_publish.go
index 4ff9ad809..eb76dd5dc 100644
--- a/weed/mq/broker/broker_grpc_server_publish.go
+++ b/weed/mq/broker/broker_grpc_server_publish.go
@@ -13,7 +13,7 @@ import (
 	"github.com/chrislusf/seaweedfs/weed/pb/mq_pb"
 )
 
-func (broker *MessageBroker) Publish(stream mq_pb.SeaweedMessaging_PublishServer) error {
+func (broker *MessageQueueBroker) Publish(stream mq_pb.SeaweedMessaging_PublishServer) error {
 
 	// process initial request
 	in, err := stream.Recv()
diff --git a/weed/mq/broker/broker_server.go b/weed/mq/broker/broker_server.go
index 3fd01fb53..dbd854250 100644
--- a/weed/mq/broker/broker_server.go
+++ b/weed/mq/broker/broker_server.go
@@ -2,7 +2,9 @@ package broker
 
 import (
 	"context"
+	"github.com/chrislusf/seaweedfs/weed/cluster"
 	"github.com/chrislusf/seaweedfs/weed/pb/mq_pb"
+	"github.com/chrislusf/seaweedfs/weed/wdclient"
 	"time"
 
 	"google.golang.org/grpc"
@@ -14,6 +16,8 @@ import (
 )
 
 type MessageQueueBrokerOption struct {
+	Masters            map[string]pb.ServerAddress
+	FilerGroup         string
 	Filers             []pb.ServerAddress
 	DefaultReplication string
 	MaxMB              int
@@ -26,23 +30,26 @@ type MessageQueueBroker struct {
 	mq_pb.UnimplementedSeaweedMessagingServer
 	option         *MessageQueueBrokerOption
 	grpcDialOption grpc.DialOption
+	MasterClient   *wdclient.MasterClient
 	topicManager   *TopicManager
 }
 
-func NewMessageBroker(option *MessageQueueBrokerOption, grpcDialOption grpc.DialOption) (messageBroker *MessageQueueBroker, err error) {
+func NewMessageBroker(option *MessageQueueBrokerOption, grpcDialOption grpc.DialOption) (mqBroker *MessageQueueBroker, err error) {
 
-	messageBroker = &MessageQueueBroker{
+	mqBroker = &MessageQueueBroker{
 		option:         option,
 		grpcDialOption: grpcDialOption,
+		MasterClient:   wdclient.NewMasterClient(grpcDialOption, option.FilerGroup, cluster.BrokerType, pb.NewServerAddress(option.Ip, option.Port, 0), "", option.Masters),
 	}
 
-	messageBroker.topicManager = NewTopicManager(messageBroker)
+	mqBroker.topicManager = NewTopicManager(mqBroker)
 
-	messageBroker.checkFilers()
+	mqBroker.checkFilers()
 
-	go messageBroker.keepConnectedToOneFiler()
+	go mqBroker.keepConnectedToOneFiler()
+	go mqBroker.MasterClient.KeepConnectedToMaster()
 
-	return messageBroker, nil
+	return mqBroker, nil
 }
 
 func (broker *MessageQueueBroker) keepConnectedToOneFiler() {
diff --git a/weed/shell/command_cluster_ps.go b/weed/shell/command_cluster_ps.go
index 21d3587fb..fc5f801b1 100644
--- a/weed/shell/command_cluster_ps.go
+++ b/weed/shell/command_cluster_ps.go
@@ -40,7 +40,9 @@ func (c *commandClusterPs) Do(args []string, commandEnv *CommandEnv, writer io.W
 	}
 
 	var filerNodes []*master_pb.ListClusterNodesResponse_ClusterNode
+	var mqBrokerNodes []*master_pb.ListClusterNodesResponse_ClusterNode
 
+	// get the list of filers
 	err = commandEnv.MasterClient.WithClient(false, func(client master_pb.SeaweedClient) error {
 		resp, err := client.ListClusterNodes(context.Background(), &master_pb.ListClusterNodesRequest{
 			ClientType: cluster.FilerType,
@@ -57,6 +59,30 @@ func (c *commandClusterPs) Do(args []string, commandEnv *CommandEnv, writer io.W
 		return
 	}
 
+	// get the list of message queue brokers
+	err = commandEnv.MasterClient.WithClient(false, func(client master_pb.SeaweedClient) error {
+		resp, err := client.ListClusterNodes(context.Background(), &master_pb.ListClusterNodesRequest{
+			ClientType: cluster.BrokerType,
+			FilerGroup: *commandEnv.option.FilerGroup,
+		})
+		if err != nil {
+			return err
+		}
+
+		mqBrokerNodes = resp.ClusterNodes
+		return err
+	})
+	if err != nil {
+		return
+	}
+
+	if len(mqBrokerNodes) > 0 {
+		fmt.Fprintf(writer, "* message queue brokers %d\n", len(mqBrokerNodes))
+		for _, node := range mqBrokerNodes {
+			fmt.Fprintf(writer, "  * %s (%v)\n", node.Address, node.Version)
+		}
+	}
+
 	fmt.Fprintf(writer, "* filers %d\n", len(filerNodes))
 	for _, node := range filerNodes {
 		fmt.Fprintf(writer, "  * %s (%v)\n", node.Address, node.Version)

From 0f5d7ed242657b15ca35a6e46304068cf89bca17 Mon Sep 17 00:00:00 2001
From: chrislu <chris.lu@gmail.com>
Date: Sat, 2 Jul 2022 09:28:24 -0700
Subject: [PATCH 06/17] mq broker adds data center and rack

---
 weed/command/mq_broker.go | 4 ++++
 weed/command/server.go    | 2 ++
 2 files changed, 6 insertions(+)

diff --git a/weed/command/mq_broker.go b/weed/command/mq_broker.go
index c87cccd2c..a80e3da70 100644
--- a/weed/command/mq_broker.go
+++ b/weed/command/mq_broker.go
@@ -28,6 +28,8 @@ type MessageQueueBrokerOptions struct {
 	filer      *string
 	ip         *string
 	port       *int
+	dataCenter *string
+	rack       *string
 	cpuprofile *string
 	memprofile *string
 }
@@ -39,6 +41,8 @@ func init() {
 	mqBrokerStandaloneOptions.filerGroup = cmdMqBroker.Flag.String("filerGroup", "", "share metadata with other filers in the same filerGroup")
 	mqBrokerStandaloneOptions.ip = cmdMqBroker.Flag.String("ip", util.DetectedHostAddress(), "broker host address")
 	mqBrokerStandaloneOptions.port = cmdMqBroker.Flag.Int("port", 17777, "broker gRPC listen port")
+	mqBrokerStandaloneOptions.dataCenter = cmdMqBroker.Flag.String("dataCenter", "", "prefer to read and write to volumes in this data center")
+	mqBrokerStandaloneOptions.rack = cmdMqBroker.Flag.String("rack", "", "prefer to write to volumes in this rack")
 	mqBrokerStandaloneOptions.cpuprofile = cmdMqBroker.Flag.String("cpuprofile", "", "cpu profile output file")
 	mqBrokerStandaloneOptions.memprofile = cmdMqBroker.Flag.String("memprofile", "", "memory profile output file")
 }
diff --git a/weed/command/server.go b/weed/command/server.go
index 2c363087c..9e1cea07d 100644
--- a/weed/command/server.go
+++ b/weed/command/server.go
@@ -217,6 +217,8 @@ func runServer(cmd *Command, args []string) bool {
 
 	filerOptions.dataCenter = serverDataCenter
 	filerOptions.rack = serverRack
+	mqBrokerOptions.dataCenter = serverDataCenter
+	mqBrokerOptions.rack = serverRack
 	filerOptions.disableHttp = serverDisableHttp
 	masterOptions.disableHttp = serverDisableHttp
 

From 9f20d3ebd1a756d27169bc0299401a0c76f787ff Mon Sep 17 00:00:00 2001
From: chrislu <chris.lu@gmail.com>
Date: Sun, 3 Jul 2022 00:29:25 -0700
Subject: [PATCH 07/17] add dc and rack

---
 weed/cluster/cluster.go                       |  82 +-
 weed/cluster/cluster_test.go                  |  22 +-
 weed/command/benchmark.go                     |   2 +-
 weed/command/mq_broker.go                     |   2 +
 weed/filer/filer.go                           |   2 +-
 weed/iamapi/iamapi_server.go                  |   2 +-
 weed/mq/broker/broker_server.go               |   4 +-
 weed/pb/master.proto                          |   2 +
 weed/pb/master_pb/master.pb.go                | 971 +++++++++---------
 weed/pb/mount_pb/mount.pb.go                  |   8 +-
 weed/pb/mount_pb/mount_grpc.pb.go             |   6 +-
 weed/pb/{messaging.proto => mq.proto}         |   4 +-
 weed/pb/mq_pb/{messaging.pb.go => mq.pb.go}   | 671 ++++++------
 .../{messaging_grpc.pb.go => mq_grpc.pb.go}   |  22 +-
 weed/pb/remote_pb/remote.pb.go                | 241 ++---
 weed/pb/s3_pb/s3.pb.go                        |  28 +-
 weed/pb/s3_pb/s3_grpc.pb.go                   |   6 +-
 weed/server/master_grpc_server.go             |   5 +-
 weed/server/master_server.go                  |   2 +-
 weed/shell/commands.go                        |   2 +-
 weed/wdclient/masterclient.go                 |   6 +-
 21 files changed, 1056 insertions(+), 1034 deletions(-)
 rename weed/pb/{messaging.proto => mq.proto} (97%)
 rename weed/pb/mq_pb/{messaging.pb.go => mq.pb.go} (59%)
 rename weed/pb/mq_pb/{messaging_grpc.pb.go => mq_grpc.pb.go} (93%)

diff --git a/weed/cluster/cluster.go b/weed/cluster/cluster.go
index ad6e6b879..1802ecda0 100644
--- a/weed/cluster/cluster.go
+++ b/weed/cluster/cluster.go
@@ -24,6 +24,15 @@ type Leaders struct {
 	leaders [3]pb.ServerAddress
 }
 
+type DataCenter string
+type Rack string
+type DataCenterBrokers struct {
+	brokers map[Rack]*RackBrokers
+}
+type RackBrokers struct {
+	brokers map[pb.ServerAddress]*ClusterNode
+}
+
 type ClusterNode struct {
 	Address   pb.ServerAddress
 	Version   string
@@ -34,14 +43,14 @@ type ClusterNode struct {
 type Cluster struct {
 	filerGroup2filers map[FilerGroup]*Filers
 	filersLock        sync.RWMutex
-	brokers           map[pb.ServerAddress]*ClusterNode
+	brokers           map[DataCenter]*DataCenterBrokers
 	brokersLock       sync.RWMutex
 }
 
 func NewCluster() *Cluster {
 	return &Cluster{
 		filerGroup2filers: make(map[FilerGroup]*Filers),
-		brokers:           make(map[pb.ServerAddress]*ClusterNode),
+		brokers:           make(map[DataCenter]*DataCenterBrokers),
 	}
 }
 
@@ -57,7 +66,7 @@ func (cluster *Cluster) getFilers(filerGroup FilerGroup, createIfNotFound bool)
 	return filers
 }
 
-func (cluster *Cluster) AddClusterNode(ns, nodeType string, address pb.ServerAddress, version string) []*master_pb.KeepConnectedResponse {
+func (cluster *Cluster) AddClusterNode(ns, nodeType string, dataCenter DataCenter, rack Rack, address pb.ServerAddress, version string) []*master_pb.KeepConnectedResponse {
 	filerGroup := FilerGroup(ns)
 	switch nodeType {
 	case FilerType:
@@ -78,11 +87,24 @@ func (cluster *Cluster) AddClusterNode(ns, nodeType string, address pb.ServerAdd
 	case BrokerType:
 		cluster.brokersLock.Lock()
 		defer cluster.brokersLock.Unlock()
-		if existingNode, found := cluster.brokers[address]; found {
-			existingNode.counter++
+		existingDataCenterBrokers, foundDataCenter := cluster.brokers[dataCenter]
+		if !foundDataCenter {
+			existingDataCenterBrokers = &DataCenterBrokers{
+				brokers: make(map[Rack]*RackBrokers),
+			}
+		}
+		existingRackBrokers, foundRack := existingDataCenterBrokers.brokers[rack]
+		if !foundRack {
+			existingRackBrokers = &RackBrokers{
+				brokers: make(map[pb.ServerAddress]*ClusterNode),
+			}
+		}
+
+		if existingBroker, found := existingRackBrokers.brokers[address]; found {
+			existingBroker.counter++
 			return nil
 		}
-		cluster.brokers[address] = &ClusterNode{
+		existingRackBrokers.brokers[address] = &ClusterNode{
 			Address:   address,
 			Version:   version,
 			counter:   1,
@@ -111,7 +133,7 @@ func (cluster *Cluster) AddClusterNode(ns, nodeType string, address pb.ServerAdd
 	return nil
 }
 
-func (cluster *Cluster) RemoveClusterNode(ns string, nodeType string, address pb.ServerAddress) []*master_pb.KeepConnectedResponse {
+func (cluster *Cluster) RemoveClusterNode(ns string, nodeType string, dataCenter DataCenter, rack Rack, address pb.ServerAddress) []*master_pb.KeepConnectedResponse {
 	filerGroup := FilerGroup(ns)
 	switch nodeType {
 	case FilerType:
@@ -133,23 +155,35 @@ func (cluster *Cluster) RemoveClusterNode(ns string, nodeType string, address pb
 	case BrokerType:
 		cluster.brokersLock.Lock()
 		defer cluster.brokersLock.Unlock()
-		if existingNode, found := cluster.brokers[address]; !found {
+
+		existingDataCenterBrokers, foundDataCenter := cluster.brokers[dataCenter]
+		if !foundDataCenter {
 			return nil
-		} else {
-			existingNode.counter--
-			if existingNode.counter <= 0 {
-				delete(cluster.brokers, address)
-				return []*master_pb.KeepConnectedResponse{
-					{
-						ClusterNodeUpdate: &master_pb.ClusterNodeUpdate{
-							NodeType: nodeType,
-							Address:  string(address),
-							IsAdd:    false,
-						},
+		}
+		existingRackBrokers, foundRack := existingDataCenterBrokers.brokers[Rack(rack)]
+		if !foundRack {
+			return nil
+		}
+
+		existingBroker, found := existingRackBrokers.brokers[address]
+		if !found {
+			return nil
+		}
+		existingBroker.counter--
+		if existingBroker.counter <= 0 {
+			delete(existingRackBrokers.brokers, address)
+			return []*master_pb.KeepConnectedResponse{
+				{
+					ClusterNodeUpdate: &master_pb.ClusterNodeUpdate{
+						NodeType: nodeType,
+						Address:  string(address),
+						IsAdd:    false,
 					},
-				}
+				},
 			}
 		}
+		return nil
+
 	case MasterType:
 		return []*master_pb.KeepConnectedResponse{
 			{
@@ -179,8 +213,12 @@ func (cluster *Cluster) ListClusterNode(filerGroup FilerGroup, nodeType string)
 	case BrokerType:
 		cluster.brokersLock.RLock()
 		defer cluster.brokersLock.RUnlock()
-		for _, node := range cluster.brokers {
-			nodes = append(nodes, node)
+		for _, dcNodes := range cluster.brokers {
+			for _, rackNodes := range dcNodes.brokers {
+				for _, node := range rackNodes.brokers {
+					nodes = append(nodes, node)
+				}
+			}
 		}
 	case MasterType:
 	}
diff --git a/weed/cluster/cluster_test.go b/weed/cluster/cluster_test.go
index 1187642de..76cff2a3e 100644
--- a/weed/cluster/cluster_test.go
+++ b/weed/cluster/cluster_test.go
@@ -11,24 +11,24 @@ import (
 func TestClusterAddRemoveNodes(t *testing.T) {
 	c := NewCluster()
 
-	c.AddClusterNode("", "filer", pb.ServerAddress("111:1"), "23.45")
-	c.AddClusterNode("", "filer", pb.ServerAddress("111:2"), "23.45")
+	c.AddClusterNode("", "filer", "", "", pb.ServerAddress("111:1"), "23.45")
+	c.AddClusterNode("", "filer", "", "", pb.ServerAddress("111:2"), "23.45")
 	assert.Equal(t, []pb.ServerAddress{
 		pb.ServerAddress("111:1"),
 		pb.ServerAddress("111:2"),
 	}, c.getFilers("", false).leaders.GetLeaders())
 
-	c.AddClusterNode("", "filer", pb.ServerAddress("111:3"), "23.45")
-	c.AddClusterNode("", "filer", pb.ServerAddress("111:4"), "23.45")
+	c.AddClusterNode("", "filer", "", "", pb.ServerAddress("111:3"), "23.45")
+	c.AddClusterNode("", "filer", "", "", pb.ServerAddress("111:4"), "23.45")
 	assert.Equal(t, []pb.ServerAddress{
 		pb.ServerAddress("111:1"),
 		pb.ServerAddress("111:2"),
 		pb.ServerAddress("111:3"),
 	}, c.getFilers("", false).leaders.GetLeaders())
 
-	c.AddClusterNode("", "filer", pb.ServerAddress("111:5"), "23.45")
-	c.AddClusterNode("", "filer", pb.ServerAddress("111:6"), "23.45")
-	c.RemoveClusterNode("", "filer", pb.ServerAddress("111:4"))
+	c.AddClusterNode("", "filer", "", "", pb.ServerAddress("111:5"), "23.45")
+	c.AddClusterNode("", "filer", "", "", pb.ServerAddress("111:6"), "23.45")
+	c.RemoveClusterNode("", "filer", "", "", pb.ServerAddress("111:4"))
 	assert.Equal(t, []pb.ServerAddress{
 		pb.ServerAddress("111:1"),
 		pb.ServerAddress("111:2"),
@@ -36,7 +36,7 @@ func TestClusterAddRemoveNodes(t *testing.T) {
 	}, c.getFilers("", false).leaders.GetLeaders())
 
 	// remove oldest
-	c.RemoveClusterNode("", "filer", pb.ServerAddress("111:1"))
+	c.RemoveClusterNode("", "filer", "", "", pb.ServerAddress("111:1"))
 	assert.Equal(t, []pb.ServerAddress{
 		pb.ServerAddress("111:6"),
 		pb.ServerAddress("111:2"),
@@ -44,7 +44,7 @@ func TestClusterAddRemoveNodes(t *testing.T) {
 	}, c.getFilers("", false).leaders.GetLeaders())
 
 	// remove oldest
-	c.RemoveClusterNode("", "filer", pb.ServerAddress("111:1"))
+	c.RemoveClusterNode("", "filer", "", "", pb.ServerAddress("111:1"))
 
 }
 
@@ -56,7 +56,7 @@ func TestConcurrentAddRemoveNodes(t *testing.T) {
 		go func(i int) {
 			defer wg.Done()
 			address := strconv.Itoa(i)
-			c.AddClusterNode("", "filer", pb.ServerAddress(address), "23.45")
+			c.AddClusterNode("", "filer", "", "", pb.ServerAddress(address), "23.45")
 		}(i)
 	}
 	wg.Wait()
@@ -66,7 +66,7 @@ func TestConcurrentAddRemoveNodes(t *testing.T) {
 		go func(i int) {
 			defer wg.Done()
 			address := strconv.Itoa(i)
-			node := c.RemoveClusterNode("", "filer", pb.ServerAddress(address))
+			node := c.RemoveClusterNode("", "filer", "", "", pb.ServerAddress(address))
 
 			if len(node) == 0 {
 				t.Errorf("TestConcurrentAddRemoveNodes: node[%s] not found", address)
diff --git a/weed/command/benchmark.go b/weed/command/benchmark.go
index 9f18cc5b9..d600e32b5 100644
--- a/weed/command/benchmark.go
+++ b/weed/command/benchmark.go
@@ -129,7 +129,7 @@ func runBenchmark(cmd *Command, args []string) bool {
 		defer pprof.StopCPUProfile()
 	}
 
-	b.masterClient = wdclient.NewMasterClient(b.grpcDialOption, "", "client", "", "", pb.ServerAddresses(*b.masters).ToAddressMap())
+	b.masterClient = wdclient.NewMasterClient(b.grpcDialOption, "", "client", "", "", "", pb.ServerAddresses(*b.masters).ToAddressMap())
 	go b.masterClient.KeepConnectedToMaster()
 	b.masterClient.WaitUntilConnected()
 
diff --git a/weed/command/mq_broker.go b/weed/command/mq_broker.go
index a80e3da70..65f49e673 100644
--- a/weed/command/mq_broker.go
+++ b/weed/command/mq_broker.go
@@ -96,6 +96,8 @@ func (mqBrokerOpt *MessageQueueBrokerOptions) startQueueServer() bool {
 	qs, err := broker.NewMessageBroker(&broker.MessageQueueBrokerOption{
 		Masters:            pb.ServerAddresses(*mqBrokerOpt.masters).ToAddressMap(),
 		FilerGroup:         *mqBrokerOpt.filerGroup,
+		DataCenter:         *mqBrokerOpt.dataCenter,
+		Rack:               *mqBrokerOpt.rack,
 		Filers:             []pb.ServerAddress{filerAddress},
 		DefaultReplication: "",
 		MaxMB:              0,
diff --git a/weed/filer/filer.go b/weed/filer/filer.go
index 86827c50e..b1582bd30 100644
--- a/weed/filer/filer.go
+++ b/weed/filer/filer.go
@@ -51,7 +51,7 @@ type Filer struct {
 func NewFiler(masters map[string]pb.ServerAddress, grpcDialOption grpc.DialOption, filerHost pb.ServerAddress,
 	filerGroup string, collection string, replication string, dataCenter string, notifyFn func()) *Filer {
 	f := &Filer{
-		MasterClient:        wdclient.NewMasterClient(grpcDialOption, filerGroup, cluster.FilerType, filerHost, dataCenter, masters),
+		MasterClient:        wdclient.NewMasterClient(grpcDialOption, filerGroup, cluster.FilerType, filerHost, dataCenter, "", masters),
 		fileIdDeletionQueue: util.NewUnboundedQueue(),
 		GrpcDialOption:      grpcDialOption,
 		FilerConf:           NewFilerConf(),
diff --git a/weed/iamapi/iamapi_server.go b/weed/iamapi/iamapi_server.go
index 62c7f867c..8a464782a 100644
--- a/weed/iamapi/iamapi_server.go
+++ b/weed/iamapi/iamapi_server.go
@@ -49,7 +49,7 @@ var s3ApiConfigure IamS3ApiConfig
 func NewIamApiServer(router *mux.Router, option *IamServerOption) (iamApiServer *IamApiServer, err error) {
 	s3ApiConfigure = IamS3ApiConfigure{
 		option:       option,
-		masterClient: wdclient.NewMasterClient(option.GrpcDialOption, "", "iam", "", "", option.Masters),
+		masterClient: wdclient.NewMasterClient(option.GrpcDialOption, "", "iam", "", "", "", option.Masters),
 	}
 	s3Option := s3api.S3ApiServerOption{Filer: option.Filer}
 	iamApiServer = &IamApiServer{
diff --git a/weed/mq/broker/broker_server.go b/weed/mq/broker/broker_server.go
index dbd854250..1887498d2 100644
--- a/weed/mq/broker/broker_server.go
+++ b/weed/mq/broker/broker_server.go
@@ -18,6 +18,8 @@ import (
 type MessageQueueBrokerOption struct {
 	Masters            map[string]pb.ServerAddress
 	FilerGroup         string
+	DataCenter         string
+	Rack               string
 	Filers             []pb.ServerAddress
 	DefaultReplication string
 	MaxMB              int
@@ -39,7 +41,7 @@ func NewMessageBroker(option *MessageQueueBrokerOption, grpcDialOption grpc.Dial
 	mqBroker = &MessageQueueBroker{
 		option:         option,
 		grpcDialOption: grpcDialOption,
-		MasterClient:   wdclient.NewMasterClient(grpcDialOption, option.FilerGroup, cluster.BrokerType, pb.NewServerAddress(option.Ip, option.Port, 0), "", option.Masters),
+		MasterClient:   wdclient.NewMasterClient(grpcDialOption, option.FilerGroup, cluster.BrokerType, pb.NewServerAddress(option.Ip, option.Port, 0), option.DataCenter, "", option.Masters),
 	}
 
 	mqBroker.topicManager = NewTopicManager(mqBroker)
diff --git a/weed/pb/master.proto b/weed/pb/master.proto
index 84ec7374b..cb89913ac 100644
--- a/weed/pb/master.proto
+++ b/weed/pb/master.proto
@@ -139,6 +139,8 @@ message KeepConnectedRequest {
   string client_address = 3;
   string version = 4;
   string filer_group = 5;
+  string data_center = 6;
+  string rack = 7;
 }
 
 message VolumeLocation {
diff --git a/weed/pb/master_pb/master.pb.go b/weed/pb/master_pb/master.pb.go
index 4ffa7fb69..dce816000 100644
--- a/weed/pb/master_pb/master.pb.go
+++ b/weed/pb/master_pb/master.pb.go
@@ -767,6 +767,8 @@ type KeepConnectedRequest struct {
 	ClientAddress string `protobuf:"bytes,3,opt,name=client_address,json=clientAddress,proto3" json:"client_address,omitempty"`
 	Version       string `protobuf:"bytes,4,opt,name=version,proto3" json:"version,omitempty"`
 	FilerGroup    string `protobuf:"bytes,5,opt,name=filer_group,json=filerGroup,proto3" json:"filer_group,omitempty"`
+	DataCenter    string `protobuf:"bytes,6,opt,name=data_center,json=dataCenter,proto3" json:"data_center,omitempty"`
+	Rack          string `protobuf:"bytes,7,opt,name=rack,proto3" json:"rack,omitempty"`
 }
 
 func (x *KeepConnectedRequest) Reset() {
@@ -829,6 +831,20 @@ func (x *KeepConnectedRequest) GetFilerGroup() string {
 	return ""
 }
 
+func (x *KeepConnectedRequest) GetDataCenter() string {
+	if x != nil {
+		return x.DataCenter
+	}
+	return ""
+}
+
+func (x *KeepConnectedRequest) GetRack() string {
+	if x != nil {
+		return x.Rack
+	}
+	return ""
+}
+
 type VolumeLocation struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -3831,7 +3847,7 @@ var file_master_proto_rawDesc = []byte{
 	0x52, 0x04, 0x64, 0x61, 0x74, 0x61, 0x12, 0x16, 0x0a, 0x06, 0x70, 0x61, 0x72, 0x69, 0x74, 0x79,
 	0x18, 0x02, 0x20, 0x01, 0x28, 0x0d, 0x52, 0x06, 0x70, 0x61, 0x72, 0x69, 0x74, 0x79, 0x12, 0x1d,
 	0x0a, 0x0a, 0x76, 0x6f, 0x6c, 0x75, 0x6d, 0x65, 0x5f, 0x69, 0x64, 0x73, 0x18, 0x03, 0x20, 0x03,
-	0x28, 0x0d, 0x52, 0x09, 0x76, 0x6f, 0x6c, 0x75, 0x6d, 0x65, 0x49, 0x64, 0x73, 0x22, 0x99, 0x01,
+	0x28, 0x0d, 0x52, 0x09, 0x76, 0x6f, 0x6c, 0x75, 0x6d, 0x65, 0x49, 0x64, 0x73, 0x22, 0xce, 0x01,
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 }
 
 var (
diff --git a/weed/pb/mount_pb/mount.pb.go b/weed/pb/mount_pb/mount.pb.go
index 642ffe59c..cbaf533fe 100644
--- a/weed/pb/mount_pb/mount.pb.go
+++ b/weed/pb/mount_pb/mount.pb.go
@@ -143,12 +143,12 @@ func file_mount_proto_rawDescGZIP() []byte {
 
 var file_mount_proto_msgTypes = make([]protoimpl.MessageInfo, 2)
 var file_mount_proto_goTypes = []interface{}{
-	(*ConfigureRequest)(nil),  // 0: mq_pb.ConfigureRequest
-	(*ConfigureResponse)(nil), // 1: mq_pb.ConfigureResponse
+	(*ConfigureRequest)(nil),  // 0: messaging_pb.ConfigureRequest
+	(*ConfigureResponse)(nil), // 1: messaging_pb.ConfigureResponse
 }
 var file_mount_proto_depIdxs = []int32{
-	0, // 0: mq_pb.SeaweedMount.Configure:input_type -> mq_pb.ConfigureRequest
-	1, // 1: mq_pb.SeaweedMount.Configure:output_type -> mq_pb.ConfigureResponse
+	0, // 0: messaging_pb.SeaweedMount.Configure:input_type -> messaging_pb.ConfigureRequest
+	1, // 1: messaging_pb.SeaweedMount.Configure:output_type -> messaging_pb.ConfigureResponse
 	1, // [1:2] is the sub-list for method output_type
 	0, // [0:1] is the sub-list for method input_type
 	0, // [0:0] is the sub-list for extension type_name
diff --git a/weed/pb/mount_pb/mount_grpc.pb.go b/weed/pb/mount_pb/mount_grpc.pb.go
index 1da6542dc..41737aa21 100644
--- a/weed/pb/mount_pb/mount_grpc.pb.go
+++ b/weed/pb/mount_pb/mount_grpc.pb.go
@@ -31,7 +31,7 @@ func NewSeaweedMountClient(cc grpc.ClientConnInterface) SeaweedMountClient {
 
 func (c *seaweedMountClient) Configure(ctx context.Context, in *ConfigureRequest, opts ...grpc.CallOption) (*ConfigureResponse, error) {
 	out := new(ConfigureResponse)
-	err := c.cc.Invoke(ctx, "/mq_pb.SeaweedMount/Configure", in, out, opts...)
+	err := c.cc.Invoke(ctx, "/messaging_pb.SeaweedMount/Configure", in, out, opts...)
 	if err != nil {
 		return nil, err
 	}
@@ -76,7 +76,7 @@ func _SeaweedMount_Configure_Handler(srv interface{}, ctx context.Context, dec f
 	}
 	info := &grpc.UnaryServerInfo{
 		Server:     srv,
-		FullMethod: "/mq_pb.SeaweedMount/Configure",
+		FullMethod: "/messaging_pb.SeaweedMount/Configure",
 	}
 	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
 		return srv.(SeaweedMountServer).Configure(ctx, req.(*ConfigureRequest))
@@ -88,7 +88,7 @@ func _SeaweedMount_Configure_Handler(srv interface{}, ctx context.Context, dec f
 // It's only intended for direct use with grpc.RegisterService,
 // and not to be introspected or modified (even as a copy)
 var SeaweedMount_ServiceDesc = grpc.ServiceDesc{
-	ServiceName: "mq_pb.SeaweedMount",
+	ServiceName: "messaging_pb.SeaweedMount",
 	HandlerType: (*SeaweedMountServer)(nil),
 	Methods: []grpc.MethodDesc{
 		{
diff --git a/weed/pb/messaging.proto b/weed/pb/mq.proto
similarity index 97%
rename from weed/pb/messaging.proto
rename to weed/pb/mq.proto
index a73bc99a6..abe538485 100644
--- a/weed/pb/messaging.proto
+++ b/weed/pb/mq.proto
@@ -3,8 +3,8 @@ syntax = "proto3";
 package messaging_pb;
 
 option go_package = "github.com/chrislusf/seaweedfs/weed/pb/mq_pb";
-option java_package = "seaweedfs.client";
-option java_outer_classname = "MessagingProto";
+option java_package = "seaweedfs.mq";
+option java_outer_classname = "MessagQueueProto";
 
 //////////////////////////////////////////////////
 
diff --git a/weed/pb/mq_pb/messaging.pb.go b/weed/pb/mq_pb/mq.pb.go
similarity index 59%
rename from weed/pb/mq_pb/messaging.pb.go
rename to weed/pb/mq_pb/mq.pb.go
index 8de152f1b..a47ce128d 100644
--- a/weed/pb/mq_pb/messaging.pb.go
+++ b/weed/pb/mq_pb/mq.pb.go
@@ -53,11 +53,11 @@ func (x SubscriberMessage_InitMessage_StartPosition) String() string {
 }
 
 func (SubscriberMessage_InitMessage_StartPosition) Descriptor() protoreflect.EnumDescriptor {
-	return file_messaging_proto_enumTypes[0].Descriptor()
+	return file_mq_proto_enumTypes[0].Descriptor()
 }
 
 func (SubscriberMessage_InitMessage_StartPosition) Type() protoreflect.EnumType {
-	return &file_messaging_proto_enumTypes[0]
+	return &file_mq_proto_enumTypes[0]
 }
 
 func (x SubscriberMessage_InitMessage_StartPosition) Number() protoreflect.EnumNumber {
@@ -66,7 +66,7 @@ func (x SubscriberMessage_InitMessage_StartPosition) Number() protoreflect.EnumN
 
 // Deprecated: Use SubscriberMessage_InitMessage_StartPosition.Descriptor instead.
 func (SubscriberMessage_InitMessage_StartPosition) EnumDescriptor() ([]byte, []int) {
-	return file_messaging_proto_rawDescGZIP(), []int{0, 0, 0}
+	return file_mq_proto_rawDescGZIP(), []int{0, 0, 0}
 }
 
 type TopicConfiguration_Partitioning int32
@@ -102,11 +102,11 @@ func (x TopicConfiguration_Partitioning) String() string {
 }
 
 func (TopicConfiguration_Partitioning) Descriptor() protoreflect.EnumDescriptor {
-	return file_messaging_proto_enumTypes[1].Descriptor()
+	return file_mq_proto_enumTypes[1].Descriptor()
 }
 
 func (TopicConfiguration_Partitioning) Type() protoreflect.EnumType {
-	return &file_messaging_proto_enumTypes[1]
+	return &file_mq_proto_enumTypes[1]
 }
 
 func (x TopicConfiguration_Partitioning) Number() protoreflect.EnumNumber {
@@ -115,7 +115,7 @@ func (x TopicConfiguration_Partitioning) Number() protoreflect.EnumNumber {
 
 // Deprecated: Use TopicConfiguration_Partitioning.Descriptor instead.
 func (TopicConfiguration_Partitioning) EnumDescriptor() ([]byte, []int) {
-	return file_messaging_proto_rawDescGZIP(), []int{13, 0}
+	return file_mq_proto_rawDescGZIP(), []int{13, 0}
 }
 
 type SubscriberMessage struct {
@@ -131,7 +131,7 @@ type SubscriberMessage struct {
 func (x *SubscriberMessage) Reset() {
 	*x = SubscriberMessage{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_messaging_proto_msgTypes[0]
+		mi := &file_mq_proto_msgTypes[0]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -144,7 +144,7 @@ func (x *SubscriberMessage) String() string {
 func (*SubscriberMessage) ProtoMessage() {}
 
 func (x *SubscriberMessage) ProtoReflect() protoreflect.Message {
-	mi := &file_messaging_proto_msgTypes[0]
+	mi := &file_mq_proto_msgTypes[0]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -157,7 +157,7 @@ func (x *SubscriberMessage) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use SubscriberMessage.ProtoReflect.Descriptor instead.
 func (*SubscriberMessage) Descriptor() ([]byte, []int) {
-	return file_messaging_proto_rawDescGZIP(), []int{0}
+	return file_mq_proto_rawDescGZIP(), []int{0}
 }
 
 func (x *SubscriberMessage) GetInit() *SubscriberMessage_InitMessage {
@@ -196,7 +196,7 @@ type Message struct {
 func (x *Message) Reset() {
 	*x = Message{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_messaging_proto_msgTypes[1]
+		mi := &file_mq_proto_msgTypes[1]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -209,7 +209,7 @@ func (x *Message) String() string {
 func (*Message) ProtoMessage() {}
 
 func (x *Message) ProtoReflect() protoreflect.Message {
-	mi := &file_messaging_proto_msgTypes[1]
+	mi := &file_mq_proto_msgTypes[1]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -222,7 +222,7 @@ func (x *Message) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use Message.ProtoReflect.Descriptor instead.
 func (*Message) Descriptor() ([]byte, []int) {
-	return file_messaging_proto_rawDescGZIP(), []int{1}
+	return file_mq_proto_rawDescGZIP(), []int{1}
 }
 
 func (x *Message) GetEventTimeNs() int64 {
@@ -271,7 +271,7 @@ type BrokerMessage struct {
 func (x *BrokerMessage) Reset() {
 	*x = BrokerMessage{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_messaging_proto_msgTypes[2]
+		mi := &file_mq_proto_msgTypes[2]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -284,7 +284,7 @@ func (x *BrokerMessage) String() string {
 func (*BrokerMessage) ProtoMessage() {}
 
 func (x *BrokerMessage) ProtoReflect() protoreflect.Message {
-	mi := &file_messaging_proto_msgTypes[2]
+	mi := &file_mq_proto_msgTypes[2]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -297,7 +297,7 @@ func (x *BrokerMessage) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use BrokerMessage.ProtoReflect.Descriptor instead.
 func (*BrokerMessage) Descriptor() ([]byte, []int) {
-	return file_messaging_proto_rawDescGZIP(), []int{2}
+	return file_mq_proto_rawDescGZIP(), []int{2}
 }
 
 func (x *BrokerMessage) GetData() *Message {
@@ -319,7 +319,7 @@ type PublishRequest struct {
 func (x *PublishRequest) Reset() {
 	*x = PublishRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_messaging_proto_msgTypes[3]
+		mi := &file_mq_proto_msgTypes[3]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -332,7 +332,7 @@ func (x *PublishRequest) String() string {
 func (*PublishRequest) ProtoMessage() {}
 
 func (x *PublishRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_messaging_proto_msgTypes[3]
+	mi := &file_mq_proto_msgTypes[3]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -345,7 +345,7 @@ func (x *PublishRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use PublishRequest.ProtoReflect.Descriptor instead.
 func (*PublishRequest) Descriptor() ([]byte, []int) {
-	return file_messaging_proto_rawDescGZIP(), []int{3}
+	return file_mq_proto_rawDescGZIP(), []int{3}
 }
 
 func (x *PublishRequest) GetInit() *PublishRequest_InitMessage {
@@ -375,7 +375,7 @@ type PublishResponse struct {
 func (x *PublishResponse) Reset() {
 	*x = PublishResponse{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_messaging_proto_msgTypes[4]
+		mi := &file_mq_proto_msgTypes[4]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -388,7 +388,7 @@ func (x *PublishResponse) String() string {
 func (*PublishResponse) ProtoMessage() {}
 
 func (x *PublishResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_messaging_proto_msgTypes[4]
+	mi := &file_mq_proto_msgTypes[4]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -401,7 +401,7 @@ func (x *PublishResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use PublishResponse.ProtoReflect.Descriptor instead.
 func (*PublishResponse) Descriptor() ([]byte, []int) {
-	return file_messaging_proto_rawDescGZIP(), []int{4}
+	return file_mq_proto_rawDescGZIP(), []int{4}
 }
 
 func (x *PublishResponse) GetConfig() *PublishResponse_ConfigMessage {
@@ -437,7 +437,7 @@ type DeleteTopicRequest struct {
 func (x *DeleteTopicRequest) Reset() {
 	*x = DeleteTopicRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_messaging_proto_msgTypes[5]
+		mi := &file_mq_proto_msgTypes[5]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -450,7 +450,7 @@ func (x *DeleteTopicRequest) String() string {
 func (*DeleteTopicRequest) ProtoMessage() {}
 
 func (x *DeleteTopicRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_messaging_proto_msgTypes[5]
+	mi := &file_mq_proto_msgTypes[5]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -463,7 +463,7 @@ func (x *DeleteTopicRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use DeleteTopicRequest.ProtoReflect.Descriptor instead.
 func (*DeleteTopicRequest) Descriptor() ([]byte, []int) {
-	return file_messaging_proto_rawDescGZIP(), []int{5}
+	return file_mq_proto_rawDescGZIP(), []int{5}
 }
 
 func (x *DeleteTopicRequest) GetNamespace() string {
@@ -489,7 +489,7 @@ type DeleteTopicResponse struct {
 func (x *DeleteTopicResponse) Reset() {
 	*x = DeleteTopicResponse{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_messaging_proto_msgTypes[6]
+		mi := &file_mq_proto_msgTypes[6]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -502,7 +502,7 @@ func (x *DeleteTopicResponse) String() string {
 func (*DeleteTopicResponse) ProtoMessage() {}
 
 func (x *DeleteTopicResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_messaging_proto_msgTypes[6]
+	mi := &file_mq_proto_msgTypes[6]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -515,7 +515,7 @@ func (x *DeleteTopicResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use DeleteTopicResponse.ProtoReflect.Descriptor instead.
 func (*DeleteTopicResponse) Descriptor() ([]byte, []int) {
-	return file_messaging_proto_rawDescGZIP(), []int{6}
+	return file_mq_proto_rawDescGZIP(), []int{6}
 }
 
 type ConfigureTopicRequest struct {
@@ -531,7 +531,7 @@ type ConfigureTopicRequest struct {
 func (x *ConfigureTopicRequest) Reset() {
 	*x = ConfigureTopicRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_messaging_proto_msgTypes[7]
+		mi := &file_mq_proto_msgTypes[7]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -544,7 +544,7 @@ func (x *ConfigureTopicRequest) String() string {
 func (*ConfigureTopicRequest) ProtoMessage() {}
 
 func (x *ConfigureTopicRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_messaging_proto_msgTypes[7]
+	mi := &file_mq_proto_msgTypes[7]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -557,7 +557,7 @@ func (x *ConfigureTopicRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use ConfigureTopicRequest.ProtoReflect.Descriptor instead.
 func (*ConfigureTopicRequest) Descriptor() ([]byte, []int) {
-	return file_messaging_proto_rawDescGZIP(), []int{7}
+	return file_mq_proto_rawDescGZIP(), []int{7}
 }
 
 func (x *ConfigureTopicRequest) GetNamespace() string {
@@ -590,7 +590,7 @@ type ConfigureTopicResponse struct {
 func (x *ConfigureTopicResponse) Reset() {
 	*x = ConfigureTopicResponse{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_messaging_proto_msgTypes[8]
+		mi := &file_mq_proto_msgTypes[8]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -603,7 +603,7 @@ func (x *ConfigureTopicResponse) String() string {
 func (*ConfigureTopicResponse) ProtoMessage() {}
 
 func (x *ConfigureTopicResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_messaging_proto_msgTypes[8]
+	mi := &file_mq_proto_msgTypes[8]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -616,7 +616,7 @@ func (x *ConfigureTopicResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use ConfigureTopicResponse.ProtoReflect.Descriptor instead.
 func (*ConfigureTopicResponse) Descriptor() ([]byte, []int) {
-	return file_messaging_proto_rawDescGZIP(), []int{8}
+	return file_mq_proto_rawDescGZIP(), []int{8}
 }
 
 type GetTopicConfigurationRequest struct {
@@ -631,7 +631,7 @@ type GetTopicConfigurationRequest struct {
 func (x *GetTopicConfigurationRequest) Reset() {
 	*x = GetTopicConfigurationRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_messaging_proto_msgTypes[9]
+		mi := &file_mq_proto_msgTypes[9]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -644,7 +644,7 @@ func (x *GetTopicConfigurationRequest) String() string {
 func (*GetTopicConfigurationRequest) ProtoMessage() {}
 
 func (x *GetTopicConfigurationRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_messaging_proto_msgTypes[9]
+	mi := &file_mq_proto_msgTypes[9]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -657,7 +657,7 @@ func (x *GetTopicConfigurationRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use GetTopicConfigurationRequest.ProtoReflect.Descriptor instead.
 func (*GetTopicConfigurationRequest) Descriptor() ([]byte, []int) {
-	return file_messaging_proto_rawDescGZIP(), []int{9}
+	return file_mq_proto_rawDescGZIP(), []int{9}
 }
 
 func (x *GetTopicConfigurationRequest) GetNamespace() string {
@@ -685,7 +685,7 @@ type GetTopicConfigurationResponse struct {
 func (x *GetTopicConfigurationResponse) Reset() {
 	*x = GetTopicConfigurationResponse{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_messaging_proto_msgTypes[10]
+		mi := &file_mq_proto_msgTypes[10]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -698,7 +698,7 @@ func (x *GetTopicConfigurationResponse) String() string {
 func (*GetTopicConfigurationResponse) ProtoMessage() {}
 
 func (x *GetTopicConfigurationResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_messaging_proto_msgTypes[10]
+	mi := &file_mq_proto_msgTypes[10]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -711,7 +711,7 @@ func (x *GetTopicConfigurationResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use GetTopicConfigurationResponse.ProtoReflect.Descriptor instead.
 func (*GetTopicConfigurationResponse) Descriptor() ([]byte, []int) {
-	return file_messaging_proto_rawDescGZIP(), []int{10}
+	return file_mq_proto_rawDescGZIP(), []int{10}
 }
 
 func (x *GetTopicConfigurationResponse) GetConfiguration() *TopicConfiguration {
@@ -734,7 +734,7 @@ type FindBrokerRequest struct {
 func (x *FindBrokerRequest) Reset() {
 	*x = FindBrokerRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_messaging_proto_msgTypes[11]
+		mi := &file_mq_proto_msgTypes[11]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -747,7 +747,7 @@ func (x *FindBrokerRequest) String() string {
 func (*FindBrokerRequest) ProtoMessage() {}
 
 func (x *FindBrokerRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_messaging_proto_msgTypes[11]
+	mi := &file_mq_proto_msgTypes[11]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -760,7 +760,7 @@ func (x *FindBrokerRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use FindBrokerRequest.ProtoReflect.Descriptor instead.
 func (*FindBrokerRequest) Descriptor() ([]byte, []int) {
-	return file_messaging_proto_rawDescGZIP(), []int{11}
+	return file_mq_proto_rawDescGZIP(), []int{11}
 }
 
 func (x *FindBrokerRequest) GetNamespace() string {
@@ -795,7 +795,7 @@ type FindBrokerResponse struct {
 func (x *FindBrokerResponse) Reset() {
 	*x = FindBrokerResponse{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_messaging_proto_msgTypes[12]
+		mi := &file_mq_proto_msgTypes[12]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -808,7 +808,7 @@ func (x *FindBrokerResponse) String() string {
 func (*FindBrokerResponse) ProtoMessage() {}
 
 func (x *FindBrokerResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_messaging_proto_msgTypes[12]
+	mi := &file_mq_proto_msgTypes[12]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -821,7 +821,7 @@ func (x *FindBrokerResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use FindBrokerResponse.ProtoReflect.Descriptor instead.
 func (*FindBrokerResponse) Descriptor() ([]byte, []int) {
-	return file_messaging_proto_rawDescGZIP(), []int{12}
+	return file_mq_proto_rawDescGZIP(), []int{12}
 }
 
 func (x *FindBrokerResponse) GetBroker() string {
@@ -840,13 +840,13 @@ type TopicConfiguration struct {
 	Collection     string                          `protobuf:"bytes,2,opt,name=collection,proto3" json:"collection,omitempty"`
 	Replication    string                          `protobuf:"bytes,3,opt,name=replication,proto3" json:"replication,omitempty"`
 	IsTransient    bool                            `protobuf:"varint,4,opt,name=is_transient,json=isTransient,proto3" json:"is_transient,omitempty"`
-	Partitoning    TopicConfiguration_Partitioning `protobuf:"varint,5,opt,name=partitoning,proto3,enum=mq_pb.TopicConfiguration_Partitioning" json:"partitoning,omitempty"`
+	Partitoning    TopicConfiguration_Partitioning `protobuf:"varint,5,opt,name=partitoning,proto3,enum=messaging_pb.TopicConfiguration_Partitioning" json:"partitoning,omitempty"`
 }
 
 func (x *TopicConfiguration) Reset() {
 	*x = TopicConfiguration{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_messaging_proto_msgTypes[13]
+		mi := &file_mq_proto_msgTypes[13]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -859,7 +859,7 @@ func (x *TopicConfiguration) String() string {
 func (*TopicConfiguration) ProtoMessage() {}
 
 func (x *TopicConfiguration) ProtoReflect() protoreflect.Message {
-	mi := &file_messaging_proto_msgTypes[13]
+	mi := &file_mq_proto_msgTypes[13]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -872,7 +872,7 @@ func (x *TopicConfiguration) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use TopicConfiguration.ProtoReflect.Descriptor instead.
 func (*TopicConfiguration) Descriptor() ([]byte, []int) {
-	return file_messaging_proto_rawDescGZIP(), []int{13}
+	return file_mq_proto_rawDescGZIP(), []int{13}
 }
 
 func (x *TopicConfiguration) GetPartitionCount() int32 {
@@ -918,7 +918,7 @@ type SubscriberMessage_InitMessage struct {
 	Namespace     string                                      `protobuf:"bytes,1,opt,name=namespace,proto3" json:"namespace,omitempty"`
 	Topic         string                                      `protobuf:"bytes,2,opt,name=topic,proto3" json:"topic,omitempty"`
 	Partition     int32                                       `protobuf:"varint,3,opt,name=partition,proto3" json:"partition,omitempty"`
-	StartPosition SubscriberMessage_InitMessage_StartPosition `protobuf:"varint,4,opt,name=startPosition,proto3,enum=mq_pb.SubscriberMessage_InitMessage_StartPosition" json:"startPosition,omitempty"` // Where to begin consuming from
+	StartPosition SubscriberMessage_InitMessage_StartPosition `protobuf:"varint,4,opt,name=startPosition,proto3,enum=messaging_pb.SubscriberMessage_InitMessage_StartPosition" json:"startPosition,omitempty"` // Where to begin consuming from
 	TimestampNs   int64                                       `protobuf:"varint,5,opt,name=timestampNs,proto3" json:"timestampNs,omitempty"`                                                                   // timestamp in nano seconds
 	SubscriberId  string                                      `protobuf:"bytes,6,opt,name=subscriber_id,json=subscriberId,proto3" json:"subscriber_id,omitempty"`                                              // uniquely identify a subscriber to track consumption
 }
@@ -926,7 +926,7 @@ type SubscriberMessage_InitMessage struct {
 func (x *SubscriberMessage_InitMessage) Reset() {
 	*x = SubscriberMessage_InitMessage{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_messaging_proto_msgTypes[14]
+		mi := &file_mq_proto_msgTypes[14]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -939,7 +939,7 @@ func (x *SubscriberMessage_InitMessage) String() string {
 func (*SubscriberMessage_InitMessage) ProtoMessage() {}
 
 func (x *SubscriberMessage_InitMessage) ProtoReflect() protoreflect.Message {
-	mi := &file_messaging_proto_msgTypes[14]
+	mi := &file_mq_proto_msgTypes[14]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -952,7 +952,7 @@ func (x *SubscriberMessage_InitMessage) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use SubscriberMessage_InitMessage.ProtoReflect.Descriptor instead.
 func (*SubscriberMessage_InitMessage) Descriptor() ([]byte, []int) {
-	return file_messaging_proto_rawDescGZIP(), []int{0, 0}
+	return file_mq_proto_rawDescGZIP(), []int{0, 0}
 }
 
 func (x *SubscriberMessage_InitMessage) GetNamespace() string {
@@ -1008,7 +1008,7 @@ type SubscriberMessage_AckMessage struct {
 func (x *SubscriberMessage_AckMessage) Reset() {
 	*x = SubscriberMessage_AckMessage{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_messaging_proto_msgTypes[15]
+		mi := &file_mq_proto_msgTypes[15]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -1021,7 +1021,7 @@ func (x *SubscriberMessage_AckMessage) String() string {
 func (*SubscriberMessage_AckMessage) ProtoMessage() {}
 
 func (x *SubscriberMessage_AckMessage) ProtoReflect() protoreflect.Message {
-	mi := &file_messaging_proto_msgTypes[15]
+	mi := &file_mq_proto_msgTypes[15]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -1034,7 +1034,7 @@ func (x *SubscriberMessage_AckMessage) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use SubscriberMessage_AckMessage.ProtoReflect.Descriptor instead.
 func (*SubscriberMessage_AckMessage) Descriptor() ([]byte, []int) {
-	return file_messaging_proto_rawDescGZIP(), []int{0, 1}
+	return file_mq_proto_rawDescGZIP(), []int{0, 1}
 }
 
 func (x *SubscriberMessage_AckMessage) GetMessageId() int64 {
@@ -1057,7 +1057,7 @@ type PublishRequest_InitMessage struct {
 func (x *PublishRequest_InitMessage) Reset() {
 	*x = PublishRequest_InitMessage{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_messaging_proto_msgTypes[17]
+		mi := &file_mq_proto_msgTypes[17]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -1070,7 +1070,7 @@ func (x *PublishRequest_InitMessage) String() string {
 func (*PublishRequest_InitMessage) ProtoMessage() {}
 
 func (x *PublishRequest_InitMessage) ProtoReflect() protoreflect.Message {
-	mi := &file_messaging_proto_msgTypes[17]
+	mi := &file_mq_proto_msgTypes[17]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -1083,7 +1083,7 @@ func (x *PublishRequest_InitMessage) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use PublishRequest_InitMessage.ProtoReflect.Descriptor instead.
 func (*PublishRequest_InitMessage) Descriptor() ([]byte, []int) {
-	return file_messaging_proto_rawDescGZIP(), []int{3, 0}
+	return file_mq_proto_rawDescGZIP(), []int{3, 0}
 }
 
 func (x *PublishRequest_InitMessage) GetNamespace() string {
@@ -1118,7 +1118,7 @@ type PublishResponse_ConfigMessage struct {
 func (x *PublishResponse_ConfigMessage) Reset() {
 	*x = PublishResponse_ConfigMessage{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_messaging_proto_msgTypes[18]
+		mi := &file_mq_proto_msgTypes[18]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -1131,7 +1131,7 @@ func (x *PublishResponse_ConfigMessage) String() string {
 func (*PublishResponse_ConfigMessage) ProtoMessage() {}
 
 func (x *PublishResponse_ConfigMessage) ProtoReflect() protoreflect.Message {
-	mi := &file_messaging_proto_msgTypes[18]
+	mi := &file_mq_proto_msgTypes[18]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -1144,7 +1144,7 @@ func (x *PublishResponse_ConfigMessage) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use PublishResponse_ConfigMessage.ProtoReflect.Descriptor instead.
 func (*PublishResponse_ConfigMessage) Descriptor() ([]byte, []int) {
-	return file_messaging_proto_rawDescGZIP(), []int{4, 0}
+	return file_mq_proto_rawDescGZIP(), []int{4, 0}
 }
 
 func (x *PublishResponse_ConfigMessage) GetPartitionCount() int32 {
@@ -1165,7 +1165,7 @@ type PublishResponse_RedirectMessage struct {
 func (x *PublishResponse_RedirectMessage) Reset() {
 	*x = PublishResponse_RedirectMessage{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_messaging_proto_msgTypes[19]
+		mi := &file_mq_proto_msgTypes[19]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -1178,7 +1178,7 @@ func (x *PublishResponse_RedirectMessage) String() string {
 func (*PublishResponse_RedirectMessage) ProtoMessage() {}
 
 func (x *PublishResponse_RedirectMessage) ProtoReflect() protoreflect.Message {
-	mi := &file_messaging_proto_msgTypes[19]
+	mi := &file_mq_proto_msgTypes[19]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -1191,7 +1191,7 @@ func (x *PublishResponse_RedirectMessage) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use PublishResponse_RedirectMessage.ProtoReflect.Descriptor instead.
 func (*PublishResponse_RedirectMessage) Descriptor() ([]byte, []int) {
-	return file_messaging_proto_rawDescGZIP(), []int{4, 1}
+	return file_mq_proto_rawDescGZIP(), []int{4, 1}
 }
 
 func (x *PublishResponse_RedirectMessage) GetNewBroker() string {
@@ -1201,260 +1201,259 @@ func (x *PublishResponse_RedirectMessage) GetNewBroker() string {
 	return ""
 }
 
-var File_messaging_proto protoreflect.FileDescriptor
-
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+
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+	0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x63, 0x68, 0x72, 0x69, 0x73, 0x6c, 0x75, 0x73, 0x66,
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 }
 
 var (
-	file_messaging_proto_rawDescOnce sync.Once
-	file_messaging_proto_rawDescData = file_messaging_proto_rawDesc
+	file_mq_proto_rawDescOnce sync.Once
+	file_mq_proto_rawDescData = file_mq_proto_rawDesc
 )
 
-func file_messaging_proto_rawDescGZIP() []byte {
-	file_messaging_proto_rawDescOnce.Do(func() {
-		file_messaging_proto_rawDescData = protoimpl.X.CompressGZIP(file_messaging_proto_rawDescData)
+func file_mq_proto_rawDescGZIP() []byte {
+	file_mq_proto_rawDescOnce.Do(func() {
+		file_mq_proto_rawDescData = protoimpl.X.CompressGZIP(file_mq_proto_rawDescData)
 	})
-	return file_messaging_proto_rawDescData
-}
-
-var file_messaging_proto_enumTypes = make([]protoimpl.EnumInfo, 2)
-var file_messaging_proto_msgTypes = make([]protoimpl.MessageInfo, 20)
-var file_messaging_proto_goTypes = []interface{}{
-	(SubscriberMessage_InitMessage_StartPosition)(0), // 0: mq_pb.SubscriberMessage.InitMessage.StartPosition
-	(TopicConfiguration_Partitioning)(0),             // 1: mq_pb.TopicConfiguration.Partitioning
-	(*SubscriberMessage)(nil),                        // 2: mq_pb.SubscriberMessage
-	(*Message)(nil),                                  // 3: mq_pb.Message
-	(*BrokerMessage)(nil),                            // 4: mq_pb.BrokerMessage
-	(*PublishRequest)(nil),                           // 5: mq_pb.PublishRequest
-	(*PublishResponse)(nil),                          // 6: mq_pb.PublishResponse
-	(*DeleteTopicRequest)(nil),                       // 7: mq_pb.DeleteTopicRequest
-	(*DeleteTopicResponse)(nil),                      // 8: mq_pb.DeleteTopicResponse
-	(*ConfigureTopicRequest)(nil),                    // 9: mq_pb.ConfigureTopicRequest
-	(*ConfigureTopicResponse)(nil),                   // 10: mq_pb.ConfigureTopicResponse
-	(*GetTopicConfigurationRequest)(nil),             // 11: mq_pb.GetTopicConfigurationRequest
-	(*GetTopicConfigurationResponse)(nil),            // 12: mq_pb.GetTopicConfigurationResponse
-	(*FindBrokerRequest)(nil),                        // 13: mq_pb.FindBrokerRequest
-	(*FindBrokerResponse)(nil),                       // 14: mq_pb.FindBrokerResponse
-	(*TopicConfiguration)(nil),                       // 15: mq_pb.TopicConfiguration
-	(*SubscriberMessage_InitMessage)(nil),            // 16: mq_pb.SubscriberMessage.InitMessage
-	(*SubscriberMessage_AckMessage)(nil),             // 17: mq_pb.SubscriberMessage.AckMessage
-	nil,                                              // 18: mq_pb.Message.HeadersEntry
-	(*PublishRequest_InitMessage)(nil),               // 19: mq_pb.PublishRequest.InitMessage
-	(*PublishResponse_ConfigMessage)(nil),            // 20: mq_pb.PublishResponse.ConfigMessage
-	(*PublishResponse_RedirectMessage)(nil),          // 21: mq_pb.PublishResponse.RedirectMessage
-}
-var file_messaging_proto_depIdxs = []int32{
-	16, // 0: mq_pb.SubscriberMessage.init:type_name -> mq_pb.SubscriberMessage.InitMessage
-	17, // 1: mq_pb.SubscriberMessage.ack:type_name -> mq_pb.SubscriberMessage.AckMessage
-	18, // 2: mq_pb.Message.headers:type_name -> mq_pb.Message.HeadersEntry
-	3,  // 3: mq_pb.BrokerMessage.data:type_name -> mq_pb.Message
-	19, // 4: mq_pb.PublishRequest.init:type_name -> mq_pb.PublishRequest.InitMessage
-	3,  // 5: mq_pb.PublishRequest.data:type_name -> mq_pb.Message
-	20, // 6: mq_pb.PublishResponse.config:type_name -> mq_pb.PublishResponse.ConfigMessage
-	21, // 7: mq_pb.PublishResponse.redirect:type_name -> mq_pb.PublishResponse.RedirectMessage
-	15, // 8: mq_pb.ConfigureTopicRequest.configuration:type_name -> mq_pb.TopicConfiguration
-	15, // 9: mq_pb.GetTopicConfigurationResponse.configuration:type_name -> mq_pb.TopicConfiguration
-	1,  // 10: mq_pb.TopicConfiguration.partitoning:type_name -> mq_pb.TopicConfiguration.Partitioning
-	0,  // 11: mq_pb.SubscriberMessage.InitMessage.startPosition:type_name -> mq_pb.SubscriberMessage.InitMessage.StartPosition
-	2,  // 12: mq_pb.SeaweedMessaging.Subscribe:input_type -> mq_pb.SubscriberMessage
-	5,  // 13: mq_pb.SeaweedMessaging.Publish:input_type -> mq_pb.PublishRequest
-	7,  // 14: mq_pb.SeaweedMessaging.DeleteTopic:input_type -> mq_pb.DeleteTopicRequest
-	9,  // 15: mq_pb.SeaweedMessaging.ConfigureTopic:input_type -> mq_pb.ConfigureTopicRequest
-	11, // 16: mq_pb.SeaweedMessaging.GetTopicConfiguration:input_type -> mq_pb.GetTopicConfigurationRequest
-	13, // 17: mq_pb.SeaweedMessaging.FindBroker:input_type -> mq_pb.FindBrokerRequest
-	4,  // 18: mq_pb.SeaweedMessaging.Subscribe:output_type -> mq_pb.BrokerMessage
-	6,  // 19: mq_pb.SeaweedMessaging.Publish:output_type -> mq_pb.PublishResponse
-	8,  // 20: mq_pb.SeaweedMessaging.DeleteTopic:output_type -> mq_pb.DeleteTopicResponse
-	10, // 21: mq_pb.SeaweedMessaging.ConfigureTopic:output_type -> mq_pb.ConfigureTopicResponse
-	12, // 22: mq_pb.SeaweedMessaging.GetTopicConfiguration:output_type -> mq_pb.GetTopicConfigurationResponse
-	14, // 23: mq_pb.SeaweedMessaging.FindBroker:output_type -> mq_pb.FindBrokerResponse
+	return file_mq_proto_rawDescData
+}
+
+var file_mq_proto_enumTypes = make([]protoimpl.EnumInfo, 2)
+var file_mq_proto_msgTypes = make([]protoimpl.MessageInfo, 20)
+var file_mq_proto_goTypes = []interface{}{
+	(SubscriberMessage_InitMessage_StartPosition)(0), // 0: messaging_pb.SubscriberMessage.InitMessage.StartPosition
+	(TopicConfiguration_Partitioning)(0),             // 1: messaging_pb.TopicConfiguration.Partitioning
+	(*SubscriberMessage)(nil),                        // 2: messaging_pb.SubscriberMessage
+	(*Message)(nil),                                  // 3: messaging_pb.Message
+	(*BrokerMessage)(nil),                            // 4: messaging_pb.BrokerMessage
+	(*PublishRequest)(nil),                           // 5: messaging_pb.PublishRequest
+	(*PublishResponse)(nil),                          // 6: messaging_pb.PublishResponse
+	(*DeleteTopicRequest)(nil),                       // 7: messaging_pb.DeleteTopicRequest
+	(*DeleteTopicResponse)(nil),                      // 8: messaging_pb.DeleteTopicResponse
+	(*ConfigureTopicRequest)(nil),                    // 9: messaging_pb.ConfigureTopicRequest
+	(*ConfigureTopicResponse)(nil),                   // 10: messaging_pb.ConfigureTopicResponse
+	(*GetTopicConfigurationRequest)(nil),             // 11: messaging_pb.GetTopicConfigurationRequest
+	(*GetTopicConfigurationResponse)(nil),            // 12: messaging_pb.GetTopicConfigurationResponse
+	(*FindBrokerRequest)(nil),                        // 13: messaging_pb.FindBrokerRequest
+	(*FindBrokerResponse)(nil),                       // 14: messaging_pb.FindBrokerResponse
+	(*TopicConfiguration)(nil),                       // 15: messaging_pb.TopicConfiguration
+	(*SubscriberMessage_InitMessage)(nil),            // 16: messaging_pb.SubscriberMessage.InitMessage
+	(*SubscriberMessage_AckMessage)(nil),             // 17: messaging_pb.SubscriberMessage.AckMessage
+	nil,                                              // 18: messaging_pb.Message.HeadersEntry
+	(*PublishRequest_InitMessage)(nil),               // 19: messaging_pb.PublishRequest.InitMessage
+	(*PublishResponse_ConfigMessage)(nil),            // 20: messaging_pb.PublishResponse.ConfigMessage
+	(*PublishResponse_RedirectMessage)(nil),          // 21: messaging_pb.PublishResponse.RedirectMessage
+}
+var file_mq_proto_depIdxs = []int32{
+	16, // 0: messaging_pb.SubscriberMessage.init:type_name -> messaging_pb.SubscriberMessage.InitMessage
+	17, // 1: messaging_pb.SubscriberMessage.ack:type_name -> messaging_pb.SubscriberMessage.AckMessage
+	18, // 2: messaging_pb.Message.headers:type_name -> messaging_pb.Message.HeadersEntry
+	3,  // 3: messaging_pb.BrokerMessage.data:type_name -> messaging_pb.Message
+	19, // 4: messaging_pb.PublishRequest.init:type_name -> messaging_pb.PublishRequest.InitMessage
+	3,  // 5: messaging_pb.PublishRequest.data:type_name -> messaging_pb.Message
+	20, // 6: messaging_pb.PublishResponse.config:type_name -> messaging_pb.PublishResponse.ConfigMessage
+	21, // 7: messaging_pb.PublishResponse.redirect:type_name -> messaging_pb.PublishResponse.RedirectMessage
+	15, // 8: messaging_pb.ConfigureTopicRequest.configuration:type_name -> messaging_pb.TopicConfiguration
+	15, // 9: messaging_pb.GetTopicConfigurationResponse.configuration:type_name -> messaging_pb.TopicConfiguration
+	1,  // 10: messaging_pb.TopicConfiguration.partitoning:type_name -> messaging_pb.TopicConfiguration.Partitioning
+	0,  // 11: messaging_pb.SubscriberMessage.InitMessage.startPosition:type_name -> messaging_pb.SubscriberMessage.InitMessage.StartPosition
+	2,  // 12: messaging_pb.SeaweedMessaging.Subscribe:input_type -> messaging_pb.SubscriberMessage
+	5,  // 13: messaging_pb.SeaweedMessaging.Publish:input_type -> messaging_pb.PublishRequest
+	7,  // 14: messaging_pb.SeaweedMessaging.DeleteTopic:input_type -> messaging_pb.DeleteTopicRequest
+	9,  // 15: messaging_pb.SeaweedMessaging.ConfigureTopic:input_type -> messaging_pb.ConfigureTopicRequest
+	11, // 16: messaging_pb.SeaweedMessaging.GetTopicConfiguration:input_type -> messaging_pb.GetTopicConfigurationRequest
+	13, // 17: messaging_pb.SeaweedMessaging.FindBroker:input_type -> messaging_pb.FindBrokerRequest
+	4,  // 18: messaging_pb.SeaweedMessaging.Subscribe:output_type -> messaging_pb.BrokerMessage
+	6,  // 19: messaging_pb.SeaweedMessaging.Publish:output_type -> messaging_pb.PublishResponse
+	8,  // 20: messaging_pb.SeaweedMessaging.DeleteTopic:output_type -> messaging_pb.DeleteTopicResponse
+	10, // 21: messaging_pb.SeaweedMessaging.ConfigureTopic:output_type -> messaging_pb.ConfigureTopicResponse
+	12, // 22: messaging_pb.SeaweedMessaging.GetTopicConfiguration:output_type -> messaging_pb.GetTopicConfigurationResponse
+	14, // 23: messaging_pb.SeaweedMessaging.FindBroker:output_type -> messaging_pb.FindBrokerResponse
 	18, // [18:24] is the sub-list for method output_type
 	12, // [12:18] is the sub-list for method input_type
 	12, // [12:12] is the sub-list for extension type_name
@@ -1462,13 +1461,13 @@ var file_messaging_proto_depIdxs = []int32{
 	0,  // [0:12] is the sub-list for field type_name
 }
 
-func init() { file_messaging_proto_init() }
-func file_messaging_proto_init() {
-	if File_messaging_proto != nil {
+func init() { file_mq_proto_init() }
+func file_mq_proto_init() {
+	if File_mq_proto != nil {
 		return
 	}
 	if !protoimpl.UnsafeEnabled {
-		file_messaging_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
+		file_mq_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*SubscriberMessage); i {
 			case 0:
 				return &v.state
@@ -1480,7 +1479,7 @@ func file_messaging_proto_init() {
 				return nil
 			}
 		}
-		file_messaging_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
+		file_mq_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*Message); i {
 			case 0:
 				return &v.state
@@ -1492,7 +1491,7 @@ func file_messaging_proto_init() {
 				return nil
 			}
 		}
-		file_messaging_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} {
+		file_mq_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*BrokerMessage); i {
 			case 0:
 				return &v.state
@@ -1504,7 +1503,7 @@ func file_messaging_proto_init() {
 				return nil
 			}
 		}
-		file_messaging_proto_msgTypes[3].Exporter = func(v interface{}, i int) interface{} {
+		file_mq_proto_msgTypes[3].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*PublishRequest); i {
 			case 0:
 				return &v.state
@@ -1516,7 +1515,7 @@ func file_messaging_proto_init() {
 				return nil
 			}
 		}
-		file_messaging_proto_msgTypes[4].Exporter = func(v interface{}, i int) interface{} {
+		file_mq_proto_msgTypes[4].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*PublishResponse); i {
 			case 0:
 				return &v.state
@@ -1528,7 +1527,7 @@ func file_messaging_proto_init() {
 				return nil
 			}
 		}
-		file_messaging_proto_msgTypes[5].Exporter = func(v interface{}, i int) interface{} {
+		file_mq_proto_msgTypes[5].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*DeleteTopicRequest); i {
 			case 0:
 				return &v.state
@@ -1540,7 +1539,7 @@ func file_messaging_proto_init() {
 				return nil
 			}
 		}
-		file_messaging_proto_msgTypes[6].Exporter = func(v interface{}, i int) interface{} {
+		file_mq_proto_msgTypes[6].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*DeleteTopicResponse); i {
 			case 0:
 				return &v.state
@@ -1552,7 +1551,7 @@ func file_messaging_proto_init() {
 				return nil
 			}
 		}
-		file_messaging_proto_msgTypes[7].Exporter = func(v interface{}, i int) interface{} {
+		file_mq_proto_msgTypes[7].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*ConfigureTopicRequest); i {
 			case 0:
 				return &v.state
@@ -1564,7 +1563,7 @@ func file_messaging_proto_init() {
 				return nil
 			}
 		}
-		file_messaging_proto_msgTypes[8].Exporter = func(v interface{}, i int) interface{} {
+		file_mq_proto_msgTypes[8].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*ConfigureTopicResponse); i {
 			case 0:
 				return &v.state
@@ -1576,7 +1575,7 @@ func file_messaging_proto_init() {
 				return nil
 			}
 		}
-		file_messaging_proto_msgTypes[9].Exporter = func(v interface{}, i int) interface{} {
+		file_mq_proto_msgTypes[9].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*GetTopicConfigurationRequest); i {
 			case 0:
 				return &v.state
@@ -1588,7 +1587,7 @@ func file_messaging_proto_init() {
 				return nil
 			}
 		}
-		file_messaging_proto_msgTypes[10].Exporter = func(v interface{}, i int) interface{} {
+		file_mq_proto_msgTypes[10].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*GetTopicConfigurationResponse); i {
 			case 0:
 				return &v.state
@@ -1600,7 +1599,7 @@ func file_messaging_proto_init() {
 				return nil
 			}
 		}
-		file_messaging_proto_msgTypes[11].Exporter = func(v interface{}, i int) interface{} {
+		file_mq_proto_msgTypes[11].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*FindBrokerRequest); i {
 			case 0:
 				return &v.state
@@ -1612,7 +1611,7 @@ func file_messaging_proto_init() {
 				return nil
 			}
 		}
-		file_messaging_proto_msgTypes[12].Exporter = func(v interface{}, i int) interface{} {
+		file_mq_proto_msgTypes[12].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*FindBrokerResponse); i {
 			case 0:
 				return &v.state
@@ -1624,7 +1623,7 @@ func file_messaging_proto_init() {
 				return nil
 			}
 		}
-		file_messaging_proto_msgTypes[13].Exporter = func(v interface{}, i int) interface{} {
+		file_mq_proto_msgTypes[13].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*TopicConfiguration); i {
 			case 0:
 				return &v.state
@@ -1636,7 +1635,7 @@ func file_messaging_proto_init() {
 				return nil
 			}
 		}
-		file_messaging_proto_msgTypes[14].Exporter = func(v interface{}, i int) interface{} {
+		file_mq_proto_msgTypes[14].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*SubscriberMessage_InitMessage); i {
 			case 0:
 				return &v.state
@@ -1648,7 +1647,7 @@ func file_messaging_proto_init() {
 				return nil
 			}
 		}
-		file_messaging_proto_msgTypes[15].Exporter = func(v interface{}, i int) interface{} {
+		file_mq_proto_msgTypes[15].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*SubscriberMessage_AckMessage); i {
 			case 0:
 				return &v.state
@@ -1660,7 +1659,7 @@ func file_messaging_proto_init() {
 				return nil
 			}
 		}
-		file_messaging_proto_msgTypes[17].Exporter = func(v interface{}, i int) interface{} {
+		file_mq_proto_msgTypes[17].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*PublishRequest_InitMessage); i {
 			case 0:
 				return &v.state
@@ -1672,7 +1671,7 @@ func file_messaging_proto_init() {
 				return nil
 			}
 		}
-		file_messaging_proto_msgTypes[18].Exporter = func(v interface{}, i int) interface{} {
+		file_mq_proto_msgTypes[18].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*PublishResponse_ConfigMessage); i {
 			case 0:
 				return &v.state
@@ -1684,7 +1683,7 @@ func file_messaging_proto_init() {
 				return nil
 			}
 		}
-		file_messaging_proto_msgTypes[19].Exporter = func(v interface{}, i int) interface{} {
+		file_mq_proto_msgTypes[19].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*PublishResponse_RedirectMessage); i {
 			case 0:
 				return &v.state
@@ -1701,19 +1700,19 @@ func file_messaging_proto_init() {
 	out := protoimpl.TypeBuilder{
 		File: protoimpl.DescBuilder{
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
-			RawDescriptor: file_messaging_proto_rawDesc,
+			RawDescriptor: file_mq_proto_rawDesc,
 			NumEnums:      2,
 			NumMessages:   20,
 			NumExtensions: 0,
 			NumServices:   1,
 		},
-		GoTypes:           file_messaging_proto_goTypes,
-		DependencyIndexes: file_messaging_proto_depIdxs,
-		EnumInfos:         file_messaging_proto_enumTypes,
-		MessageInfos:      file_messaging_proto_msgTypes,
+		GoTypes:           file_mq_proto_goTypes,
+		DependencyIndexes: file_mq_proto_depIdxs,
+		EnumInfos:         file_mq_proto_enumTypes,
+		MessageInfos:      file_mq_proto_msgTypes,
 	}.Build()
-	File_messaging_proto = out.File
-	file_messaging_proto_rawDesc = nil
-	file_messaging_proto_goTypes = nil
-	file_messaging_proto_depIdxs = nil
+	File_mq_proto = out.File
+	file_mq_proto_rawDesc = nil
+	file_mq_proto_goTypes = nil
+	file_mq_proto_depIdxs = nil
 }
diff --git a/weed/pb/mq_pb/messaging_grpc.pb.go b/weed/pb/mq_pb/mq_grpc.pb.go
similarity index 93%
rename from weed/pb/mq_pb/messaging_grpc.pb.go
rename to weed/pb/mq_pb/mq_grpc.pb.go
index 0249a0b9c..3c986fc78 100644
--- a/weed/pb/mq_pb/messaging_grpc.pb.go
+++ b/weed/pb/mq_pb/mq_grpc.pb.go
@@ -35,7 +35,7 @@ func NewSeaweedMessagingClient(cc grpc.ClientConnInterface) SeaweedMessagingClie
 }
 
 func (c *seaweedMessagingClient) Subscribe(ctx context.Context, opts ...grpc.CallOption) (SeaweedMessaging_SubscribeClient, error) {
-	stream, err := c.cc.NewStream(ctx, &SeaweedMessaging_ServiceDesc.Streams[0], "/mq_pb.SeaweedMessaging/Subscribe", opts...)
+	stream, err := c.cc.NewStream(ctx, &SeaweedMessaging_ServiceDesc.Streams[0], "/messaging_pb.SeaweedMessaging/Subscribe", opts...)
 	if err != nil {
 		return nil, err
 	}
@@ -66,7 +66,7 @@ func (x *seaweedMessagingSubscribeClient) Recv() (*BrokerMessage, error) {
 }
 
 func (c *seaweedMessagingClient) Publish(ctx context.Context, opts ...grpc.CallOption) (SeaweedMessaging_PublishClient, error) {
-	stream, err := c.cc.NewStream(ctx, &SeaweedMessaging_ServiceDesc.Streams[1], "/mq_pb.SeaweedMessaging/Publish", opts...)
+	stream, err := c.cc.NewStream(ctx, &SeaweedMessaging_ServiceDesc.Streams[1], "/messaging_pb.SeaweedMessaging/Publish", opts...)
 	if err != nil {
 		return nil, err
 	}
@@ -98,7 +98,7 @@ func (x *seaweedMessagingPublishClient) Recv() (*PublishResponse, error) {
 
 func (c *seaweedMessagingClient) DeleteTopic(ctx context.Context, in *DeleteTopicRequest, opts ...grpc.CallOption) (*DeleteTopicResponse, error) {
 	out := new(DeleteTopicResponse)
-	err := c.cc.Invoke(ctx, "/mq_pb.SeaweedMessaging/DeleteTopic", in, out, opts...)
+	err := c.cc.Invoke(ctx, "/messaging_pb.SeaweedMessaging/DeleteTopic", in, out, opts...)
 	if err != nil {
 		return nil, err
 	}
@@ -107,7 +107,7 @@ func (c *seaweedMessagingClient) DeleteTopic(ctx context.Context, in *DeleteTopi
 
 func (c *seaweedMessagingClient) ConfigureTopic(ctx context.Context, in *ConfigureTopicRequest, opts ...grpc.CallOption) (*ConfigureTopicResponse, error) {
 	out := new(ConfigureTopicResponse)
-	err := c.cc.Invoke(ctx, "/mq_pb.SeaweedMessaging/ConfigureTopic", in, out, opts...)
+	err := c.cc.Invoke(ctx, "/messaging_pb.SeaweedMessaging/ConfigureTopic", in, out, opts...)
 	if err != nil {
 		return nil, err
 	}
@@ -116,7 +116,7 @@ func (c *seaweedMessagingClient) ConfigureTopic(ctx context.Context, in *Configu
 
 func (c *seaweedMessagingClient) GetTopicConfiguration(ctx context.Context, in *GetTopicConfigurationRequest, opts ...grpc.CallOption) (*GetTopicConfigurationResponse, error) {
 	out := new(GetTopicConfigurationResponse)
-	err := c.cc.Invoke(ctx, "/mq_pb.SeaweedMessaging/GetTopicConfiguration", in, out, opts...)
+	err := c.cc.Invoke(ctx, "/messaging_pb.SeaweedMessaging/GetTopicConfiguration", in, out, opts...)
 	if err != nil {
 		return nil, err
 	}
@@ -125,7 +125,7 @@ func (c *seaweedMessagingClient) GetTopicConfiguration(ctx context.Context, in *
 
 func (c *seaweedMessagingClient) FindBroker(ctx context.Context, in *FindBrokerRequest, opts ...grpc.CallOption) (*FindBrokerResponse, error) {
 	out := new(FindBrokerResponse)
-	err := c.cc.Invoke(ctx, "/mq_pb.SeaweedMessaging/FindBroker", in, out, opts...)
+	err := c.cc.Invoke(ctx, "/messaging_pb.SeaweedMessaging/FindBroker", in, out, opts...)
 	if err != nil {
 		return nil, err
 	}
@@ -242,7 +242,7 @@ func _SeaweedMessaging_DeleteTopic_Handler(srv interface{}, ctx context.Context,
 	}
 	info := &grpc.UnaryServerInfo{
 		Server:     srv,
-		FullMethod: "/mq_pb.SeaweedMessaging/DeleteTopic",
+		FullMethod: "/messaging_pb.SeaweedMessaging/DeleteTopic",
 	}
 	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
 		return srv.(SeaweedMessagingServer).DeleteTopic(ctx, req.(*DeleteTopicRequest))
@@ -260,7 +260,7 @@ func _SeaweedMessaging_ConfigureTopic_Handler(srv interface{}, ctx context.Conte
 	}
 	info := &grpc.UnaryServerInfo{
 		Server:     srv,
-		FullMethod: "/mq_pb.SeaweedMessaging/ConfigureTopic",
+		FullMethod: "/messaging_pb.SeaweedMessaging/ConfigureTopic",
 	}
 	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
 		return srv.(SeaweedMessagingServer).ConfigureTopic(ctx, req.(*ConfigureTopicRequest))
@@ -278,7 +278,7 @@ func _SeaweedMessaging_GetTopicConfiguration_Handler(srv interface{}, ctx contex
 	}
 	info := &grpc.UnaryServerInfo{
 		Server:     srv,
-		FullMethod: "/mq_pb.SeaweedMessaging/GetTopicConfiguration",
+		FullMethod: "/messaging_pb.SeaweedMessaging/GetTopicConfiguration",
 	}
 	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
 		return srv.(SeaweedMessagingServer).GetTopicConfiguration(ctx, req.(*GetTopicConfigurationRequest))
@@ -296,7 +296,7 @@ func _SeaweedMessaging_FindBroker_Handler(srv interface{}, ctx context.Context,
 	}
 	info := &grpc.UnaryServerInfo{
 		Server:     srv,
-		FullMethod: "/mq_pb.SeaweedMessaging/FindBroker",
+		FullMethod: "/messaging_pb.SeaweedMessaging/FindBroker",
 	}
 	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
 		return srv.(SeaweedMessagingServer).FindBroker(ctx, req.(*FindBrokerRequest))
@@ -308,7 +308,7 @@ func _SeaweedMessaging_FindBroker_Handler(srv interface{}, ctx context.Context,
 // It's only intended for direct use with grpc.RegisterService,
 // and not to be introspected or modified (even as a copy)
 var SeaweedMessaging_ServiceDesc = grpc.ServiceDesc{
-	ServiceName: "mq_pb.SeaweedMessaging",
+	ServiceName: "messaging_pb.SeaweedMessaging",
 	HandlerType: (*SeaweedMessagingServer)(nil),
 	Methods: []grpc.MethodDesc{
 		{
diff --git a/weed/pb/remote_pb/remote.pb.go b/weed/pb/remote_pb/remote.pb.go
index f746333ff..a9514c212 100644
--- a/weed/pb/remote_pb/remote.pb.go
+++ b/weed/pb/remote_pb/remote.pb.go
@@ -28,51 +28,47 @@ type RemoteConf struct {
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	Type                            string   `protobuf:"bytes,1,opt,name=type,proto3" json:"type,omitempty"`
-	Name                            string   `protobuf:"bytes,2,opt,name=name,proto3" json:"name,omitempty"`
-	S3AccessKey                     string   `protobuf:"bytes,4,opt,name=s3_access_key,json=s3AccessKey,proto3" json:"s3_access_key,omitempty"`
-	S3SecretKey                     string   `protobuf:"bytes,5,opt,name=s3_secret_key,json=s3SecretKey,proto3" json:"s3_secret_key,omitempty"`
-	S3Region                        string   `protobuf:"bytes,6,opt,name=s3_region,json=s3Region,proto3" json:"s3_region,omitempty"`
-	S3Endpoint                      string   `protobuf:"bytes,7,opt,name=s3_endpoint,json=s3Endpoint,proto3" json:"s3_endpoint,omitempty"`
-	S3StorageClass                  string   `protobuf:"bytes,8,opt,name=s3_storage_class,json=s3StorageClass,proto3" json:"s3_storage_class,omitempty"`
-	S3ForcePathStyle                bool     `protobuf:"varint,9,opt,name=s3_force_path_style,json=s3ForcePathStyle,proto3" json:"s3_force_path_style,omitempty"`
-	S3V4Signature                   bool     `protobuf:"varint,11,opt,name=s3_v4_signature,json=s3V4Signature,proto3" json:"s3_v4_signature,omitempty"`
-	GcsGoogleApplicationCredentials string   `protobuf:"bytes,10,opt,name=gcs_google_application_credentials,json=gcsGoogleApplicationCredentials,proto3" json:"gcs_google_application_credentials,omitempty"`
-	GcsProjectId                    string   `protobuf:"bytes,12,opt,name=gcs_project_id,json=gcsProjectId,proto3" json:"gcs_project_id,omitempty"`
-	AzureAccountName                string   `protobuf:"bytes,15,opt,name=azure_account_name,json=azureAccountName,proto3" json:"azure_account_name,omitempty"`
-	AzureAccountKey                 string   `protobuf:"bytes,16,opt,name=azure_account_key,json=azureAccountKey,proto3" json:"azure_account_key,omitempty"`
-	BackblazeKeyId                  string   `protobuf:"bytes,20,opt,name=backblaze_key_id,json=backblazeKeyId,proto3" json:"backblaze_key_id,omitempty"`
-	BackblazeApplicationKey         string   `protobuf:"bytes,21,opt,name=backblaze_application_key,json=backblazeApplicationKey,proto3" json:"backblaze_application_key,omitempty"`
-	BackblazeEndpoint               string   `protobuf:"bytes,22,opt,name=backblaze_endpoint,json=backblazeEndpoint,proto3" json:"backblaze_endpoint,omitempty"`
-	AliyunAccessKey                 string   `protobuf:"bytes,25,opt,name=aliyun_access_key,json=aliyunAccessKey,proto3" json:"aliyun_access_key,omitempty"`
-	AliyunSecretKey                 string   `protobuf:"bytes,26,opt,name=aliyun_secret_key,json=aliyunSecretKey,proto3" json:"aliyun_secret_key,omitempty"`
-	AliyunEndpoint                  string   `protobuf:"bytes,27,opt,name=aliyun_endpoint,json=aliyunEndpoint,proto3" json:"aliyun_endpoint,omitempty"`
-	AliyunRegion                    string   `protobuf:"bytes,28,opt,name=aliyun_region,json=aliyunRegion,proto3" json:"aliyun_region,omitempty"`
-	TencentSecretId                 string   `protobuf:"bytes,30,opt,name=tencent_secret_id,json=tencentSecretId,proto3" json:"tencent_secret_id,omitempty"`
-	TencentSecretKey                string   `protobuf:"bytes,31,opt,name=tencent_secret_key,json=tencentSecretKey,proto3" json:"tencent_secret_key,omitempty"`
-	TencentEndpoint                 string   `protobuf:"bytes,32,opt,name=tencent_endpoint,json=tencentEndpoint,proto3" json:"tencent_endpoint,omitempty"`
-	BaiduAccessKey                  string   `protobuf:"bytes,35,opt,name=baidu_access_key,json=baiduAccessKey,proto3" json:"baidu_access_key,omitempty"`
-	BaiduSecretKey                  string   `protobuf:"bytes,36,opt,name=baidu_secret_key,json=baiduSecretKey,proto3" json:"baidu_secret_key,omitempty"`
-	BaiduEndpoint                   string   `protobuf:"bytes,37,opt,name=baidu_endpoint,json=baiduEndpoint,proto3" json:"baidu_endpoint,omitempty"`
-	BaiduRegion                     string   `protobuf:"bytes,38,opt,name=baidu_region,json=baiduRegion,proto3" json:"baidu_region,omitempty"`
-	WasabiAccessKey                 string   `protobuf:"bytes,40,opt,name=wasabi_access_key,json=wasabiAccessKey,proto3" json:"wasabi_access_key,omitempty"`
-	WasabiSecretKey                 string   `protobuf:"bytes,41,opt,name=wasabi_secret_key,json=wasabiSecretKey,proto3" json:"wasabi_secret_key,omitempty"`
-	WasabiEndpoint                  string   `protobuf:"bytes,42,opt,name=wasabi_endpoint,json=wasabiEndpoint,proto3" json:"wasabi_endpoint,omitempty"`
-	WasabiRegion                    string   `protobuf:"bytes,43,opt,name=wasabi_region,json=wasabiRegion,proto3" json:"wasabi_region,omitempty"`
-	HdfsNamenodes                   []string `protobuf:"bytes,50,rep,name=hdfs_namenodes,json=hdfsNamenodes,proto3" json:"hdfs_namenodes,omitempty"`
-	HdfsUsername                    string   `protobuf:"bytes,51,opt,name=hdfs_username,json=hdfsUsername,proto3" json:"hdfs_username,omitempty"`
-	HdfsServicePrincipalName        string   `protobuf:"bytes,52,opt,name=hdfs_service_principal_name,json=hdfsServicePrincipalName,proto3" json:"hdfs_service_principal_name,omitempty"`
-	HdfsDataTransferProtection      string   `protobuf:"bytes,53,opt,name=hdfs_data_transfer_protection,json=hdfsDataTransferProtection,proto3" json:"hdfs_data_transfer_protection,omitempty"`
-	FilebaseAccessKey               string   `protobuf:"bytes,60,opt,name=filebase_access_key,json=filebaseAccessKey,proto3" json:"filebase_access_key,omitempty"`
-	FilebaseSecretKey               string   `protobuf:"bytes,61,opt,name=filebase_secret_key,json=filebaseSecretKey,proto3" json:"filebase_secret_key,omitempty"`
-	FilebaseEndpoint                string   `protobuf:"bytes,62,opt,name=filebase_endpoint,json=filebaseEndpoint,proto3" json:"filebase_endpoint,omitempty"`
-	StorjAccessKey                  string   `protobuf:"bytes,65,opt,name=storj_access_key,json=storjAccessKey,proto3" json:"storj_access_key,omitempty"`
-	StorjSecretKey                  string   `protobuf:"bytes,66,opt,name=storj_secret_key,json=storjSecretKey,proto3" json:"storj_secret_key,omitempty"`
-	StorjEndpoint                   string   `protobuf:"bytes,67,opt,name=storj_endpoint,json=storjEndpoint,proto3" json:"storj_endpoint,omitempty"`
-	ContaboAccessKey                string   `protobuf:"bytes,68,opt,name=contabo_access_key,json=contaboAccessKey,proto3" json:"contabo_access_key,omitempty"`
-	ContaboSecretKey                string   `protobuf:"bytes,69,opt,name=contabo_secret_key,json=contaboSecretKey,proto3" json:"contabo_secret_key,omitempty"`
-	ContaboEndpoint                 string   `protobuf:"bytes,70,opt,name=contabo_endpoint,json=contaboEndpoint,proto3" json:"contabo_endpoint,omitempty"`
-	ContaboRegion                   string   `protobuf:"bytes,71,opt,name=contabo_region,json=contaboRegion,proto3" json:"contabo_region,omitempty"`
+	Type                            string `protobuf:"bytes,1,opt,name=type,proto3" json:"type,omitempty"`
+	Name                            string `protobuf:"bytes,2,opt,name=name,proto3" json:"name,omitempty"`
+	S3AccessKey                     string `protobuf:"bytes,4,opt,name=s3_access_key,json=s3AccessKey,proto3" json:"s3_access_key,omitempty"`
+	S3SecretKey                     string `protobuf:"bytes,5,opt,name=s3_secret_key,json=s3SecretKey,proto3" json:"s3_secret_key,omitempty"`
+	S3Region                        string `protobuf:"bytes,6,opt,name=s3_region,json=s3Region,proto3" json:"s3_region,omitempty"`
+	S3Endpoint                      string `protobuf:"bytes,7,opt,name=s3_endpoint,json=s3Endpoint,proto3" json:"s3_endpoint,omitempty"`
+	S3StorageClass                  string `protobuf:"bytes,8,opt,name=s3_storage_class,json=s3StorageClass,proto3" json:"s3_storage_class,omitempty"`
+	S3ForcePathStyle                bool   `protobuf:"varint,9,opt,name=s3_force_path_style,json=s3ForcePathStyle,proto3" json:"s3_force_path_style,omitempty"`
+	S3V4Signature                   bool   `protobuf:"varint,11,opt,name=s3_v4_signature,json=s3V4Signature,proto3" json:"s3_v4_signature,omitempty"`
+	GcsGoogleApplicationCredentials string `protobuf:"bytes,10,opt,name=gcs_google_application_credentials,json=gcsGoogleApplicationCredentials,proto3" json:"gcs_google_application_credentials,omitempty"`
+	GcsProjectId                    string `protobuf:"bytes,12,opt,name=gcs_project_id,json=gcsProjectId,proto3" json:"gcs_project_id,omitempty"`
+	AzureAccountName                string `protobuf:"bytes,15,opt,name=azure_account_name,json=azureAccountName,proto3" json:"azure_account_name,omitempty"`
+	AzureAccountKey                 string `protobuf:"bytes,16,opt,name=azure_account_key,json=azureAccountKey,proto3" json:"azure_account_key,omitempty"`
+	BackblazeKeyId                  string `protobuf:"bytes,20,opt,name=backblaze_key_id,json=backblazeKeyId,proto3" json:"backblaze_key_id,omitempty"`
+	BackblazeApplicationKey         string `protobuf:"bytes,21,opt,name=backblaze_application_key,json=backblazeApplicationKey,proto3" json:"backblaze_application_key,omitempty"`
+	BackblazeEndpoint               string `protobuf:"bytes,22,opt,name=backblaze_endpoint,json=backblazeEndpoint,proto3" json:"backblaze_endpoint,omitempty"`
+	AliyunAccessKey                 string `protobuf:"bytes,25,opt,name=aliyun_access_key,json=aliyunAccessKey,proto3" json:"aliyun_access_key,omitempty"`
+	AliyunSecretKey                 string `protobuf:"bytes,26,opt,name=aliyun_secret_key,json=aliyunSecretKey,proto3" json:"aliyun_secret_key,omitempty"`
+	AliyunEndpoint                  string `protobuf:"bytes,27,opt,name=aliyun_endpoint,json=aliyunEndpoint,proto3" json:"aliyun_endpoint,omitempty"`
+	AliyunRegion                    string `protobuf:"bytes,28,opt,name=aliyun_region,json=aliyunRegion,proto3" json:"aliyun_region,omitempty"`
+	TencentSecretId                 string `protobuf:"bytes,30,opt,name=tencent_secret_id,json=tencentSecretId,proto3" json:"tencent_secret_id,omitempty"`
+	TencentSecretKey                string `protobuf:"bytes,31,opt,name=tencent_secret_key,json=tencentSecretKey,proto3" json:"tencent_secret_key,omitempty"`
+	TencentEndpoint                 string `protobuf:"bytes,32,opt,name=tencent_endpoint,json=tencentEndpoint,proto3" json:"tencent_endpoint,omitempty"`
+	BaiduAccessKey                  string `protobuf:"bytes,35,opt,name=baidu_access_key,json=baiduAccessKey,proto3" json:"baidu_access_key,omitempty"`
+	BaiduSecretKey                  string `protobuf:"bytes,36,opt,name=baidu_secret_key,json=baiduSecretKey,proto3" json:"baidu_secret_key,omitempty"`
+	BaiduEndpoint                   string `protobuf:"bytes,37,opt,name=baidu_endpoint,json=baiduEndpoint,proto3" json:"baidu_endpoint,omitempty"`
+	BaiduRegion                     string `protobuf:"bytes,38,opt,name=baidu_region,json=baiduRegion,proto3" json:"baidu_region,omitempty"`
+	WasabiAccessKey                 string `protobuf:"bytes,40,opt,name=wasabi_access_key,json=wasabiAccessKey,proto3" json:"wasabi_access_key,omitempty"`
+	WasabiSecretKey                 string `protobuf:"bytes,41,opt,name=wasabi_secret_key,json=wasabiSecretKey,proto3" json:"wasabi_secret_key,omitempty"`
+	WasabiEndpoint                  string `protobuf:"bytes,42,opt,name=wasabi_endpoint,json=wasabiEndpoint,proto3" json:"wasabi_endpoint,omitempty"`
+	WasabiRegion                    string `protobuf:"bytes,43,opt,name=wasabi_region,json=wasabiRegion,proto3" json:"wasabi_region,omitempty"`
+	FilebaseAccessKey               string `protobuf:"bytes,60,opt,name=filebase_access_key,json=filebaseAccessKey,proto3" json:"filebase_access_key,omitempty"`
+	FilebaseSecretKey               string `protobuf:"bytes,61,opt,name=filebase_secret_key,json=filebaseSecretKey,proto3" json:"filebase_secret_key,omitempty"`
+	FilebaseEndpoint                string `protobuf:"bytes,62,opt,name=filebase_endpoint,json=filebaseEndpoint,proto3" json:"filebase_endpoint,omitempty"`
+	StorjAccessKey                  string `protobuf:"bytes,65,opt,name=storj_access_key,json=storjAccessKey,proto3" json:"storj_access_key,omitempty"`
+	StorjSecretKey                  string `protobuf:"bytes,66,opt,name=storj_secret_key,json=storjSecretKey,proto3" json:"storj_secret_key,omitempty"`
+	StorjEndpoint                   string `protobuf:"bytes,67,opt,name=storj_endpoint,json=storjEndpoint,proto3" json:"storj_endpoint,omitempty"`
+	ContaboAccessKey                string `protobuf:"bytes,68,opt,name=contabo_access_key,json=contaboAccessKey,proto3" json:"contabo_access_key,omitempty"`
+	ContaboSecretKey                string `protobuf:"bytes,69,opt,name=contabo_secret_key,json=contaboSecretKey,proto3" json:"contabo_secret_key,omitempty"`
+	ContaboEndpoint                 string `protobuf:"bytes,70,opt,name=contabo_endpoint,json=contaboEndpoint,proto3" json:"contabo_endpoint,omitempty"`
+	ContaboRegion                   string `protobuf:"bytes,71,opt,name=contabo_region,json=contaboRegion,proto3" json:"contabo_region,omitempty"`
 }
 
 func (x *RemoteConf) Reset() {
@@ -324,34 +320,6 @@ func (x *RemoteConf) GetWasabiRegion() string {
 	return ""
 }
 
-func (x *RemoteConf) GetHdfsNamenodes() []string {
-	if x != nil {
-		return x.HdfsNamenodes
-	}
-	return nil
-}
-
-func (x *RemoteConf) GetHdfsUsername() string {
-	if x != nil {
-		return x.HdfsUsername
-	}
-	return ""
-}
-
-func (x *RemoteConf) GetHdfsServicePrincipalName() string {
-	if x != nil {
-		return x.HdfsServicePrincipalName
-	}
-	return ""
-}
-
-func (x *RemoteConf) GetHdfsDataTransferProtection() string {
-	if x != nil {
-		return x.HdfsDataTransferProtection
-	}
-	return ""
-}
-
 func (x *RemoteConf) GetFilebaseAccessKey() string {
 	if x != nil {
 		return x.FilebaseAccessKey
@@ -544,7 +512,7 @@ var File_remote_proto protoreflect.FileDescriptor
 
 var file_remote_proto_rawDesc = []byte{
 	0x0a, 0x0c, 0x72, 0x65, 0x6d, 0x6f, 0x74, 0x65, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x12, 0x09,
-	0x72, 0x65, 0x6d, 0x6f, 0x74, 0x65, 0x5f, 0x70, 0x62, 0x22, 0x90, 0x0f, 0x0a, 0x0a, 0x52, 0x65,
+	0x72, 0x65, 0x6d, 0x6f, 0x74, 0x65, 0x5f, 0x70, 0x62, 0x22, 0xc2, 0x0d, 0x0a, 0x0a, 0x52, 0x65,
 	0x6d, 0x6f, 0x74, 0x65, 0x43, 0x6f, 0x6e, 0x66, 0x12, 0x12, 0x0a, 0x04, 0x74, 0x79, 0x70, 0x65,
 	0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x04, 0x74, 0x79, 0x70, 0x65, 0x12, 0x12, 0x0a, 0x04,
 	0x6e, 0x61, 0x6d, 0x65, 0x18, 0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x04, 0x6e, 0x61, 0x6d, 0x65,
@@ -625,75 +593,62 @@ var file_remote_proto_rawDesc = []byte{
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+	0x52, 0x65, 0x6d, 0x6f, 0x74, 0x65, 0x53, 0x74, 0x6f, 0x72, 0x61, 0x67, 0x65, 0x4c, 0x6f, 0x63,
+	0x61, 0x74, 0x69, 0x6f, 0x6e, 0x52, 0x05, 0x76, 0x61, 0x6c, 0x75, 0x65, 0x3a, 0x02, 0x38, 0x01,
+	0x22, 0x57, 0x0a, 0x15, 0x52, 0x65, 0x6d, 0x6f, 0x74, 0x65, 0x53, 0x74, 0x6f, 0x72, 0x61, 0x67,
+	0x65, 0x4c, 0x6f, 0x63, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x12, 0x12, 0x0a, 0x04, 0x6e, 0x61, 0x6d,
+	0x65, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x04, 0x6e, 0x61, 0x6d, 0x65, 0x12, 0x16, 0x0a,
+	0x06, 0x62, 0x75, 0x63, 0x6b, 0x65, 0x74, 0x18, 0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x06, 0x62,
+	0x75, 0x63, 0x6b, 0x65, 0x74, 0x12, 0x12, 0x0a, 0x04, 0x70, 0x61, 0x74, 0x68, 0x18, 0x03, 0x20,
+	0x01, 0x28, 0x09, 0x52, 0x04, 0x70, 0x61, 0x74, 0x68, 0x42, 0x50, 0x0a, 0x10, 0x73, 0x65, 0x61,
+	0x77, 0x65, 0x65, 0x64, 0x66, 0x73, 0x2e, 0x63, 0x6c, 0x69, 0x65, 0x6e, 0x74, 0x42, 0x0a, 0x46,
+	0x69, 0x6c, 0x65, 0x72, 0x50, 0x72, 0x6f, 0x74, 0x6f, 0x5a, 0x30, 0x67, 0x69, 0x74, 0x68, 0x75,
+	0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x63, 0x68, 0x72, 0x69, 0x73, 0x6c, 0x75, 0x73, 0x66, 0x2f,
+	0x73, 0x65, 0x61, 0x77, 0x65, 0x65, 0x64, 0x66, 0x73, 0x2f, 0x77, 0x65, 0x65, 0x64, 0x2f, 0x70,
+	0x62, 0x2f, 0x72, 0x65, 0x6d, 0x6f, 0x74, 0x65, 0x5f, 0x70, 0x62, 0x62, 0x06, 0x70, 0x72, 0x6f,
+	0x74, 0x6f, 0x33,
 }
 
 var (
diff --git a/weed/pb/s3_pb/s3.pb.go b/weed/pb/s3_pb/s3.pb.go
index 9923961a8..44422b519 100644
--- a/weed/pb/s3_pb/s3.pb.go
+++ b/weed/pb/s3_pb/s3.pb.go
@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.28.0
-// 	protoc        v3.21.1
+// 	protoc-gen-go v1.26.0
+// 	protoc        v3.17.3
 // source: s3.proto
 
 package s3_pb
@@ -283,20 +283,20 @@ func file_s3_proto_rawDescGZIP() []byte {
 
 var file_s3_proto_msgTypes = make([]protoimpl.MessageInfo, 6)
 var file_s3_proto_goTypes = []interface{}{
-	(*S3ConfigureRequest)(nil),      // 0: mq_pb.S3ConfigureRequest
-	(*S3ConfigureResponse)(nil),     // 1: mq_pb.S3ConfigureResponse
-	(*S3CircuitBreakerConfig)(nil),  // 2: mq_pb.S3CircuitBreakerConfig
-	(*S3CircuitBreakerOptions)(nil), // 3: mq_pb.S3CircuitBreakerOptions
-	nil,                             // 4: mq_pb.S3CircuitBreakerConfig.BucketsEntry
-	nil,                             // 5: mq_pb.S3CircuitBreakerOptions.ActionsEntry
+	(*S3ConfigureRequest)(nil),      // 0: messaging_pb.S3ConfigureRequest
+	(*S3ConfigureResponse)(nil),     // 1: messaging_pb.S3ConfigureResponse
+	(*S3CircuitBreakerConfig)(nil),  // 2: messaging_pb.S3CircuitBreakerConfig
+	(*S3CircuitBreakerOptions)(nil), // 3: messaging_pb.S3CircuitBreakerOptions
+	nil,                             // 4: messaging_pb.S3CircuitBreakerConfig.BucketsEntry
+	nil,                             // 5: messaging_pb.S3CircuitBreakerOptions.ActionsEntry
 }
 var file_s3_proto_depIdxs = []int32{
-	3, // 0: mq_pb.S3CircuitBreakerConfig.global:type_name -> mq_pb.S3CircuitBreakerOptions
-	4, // 1: mq_pb.S3CircuitBreakerConfig.buckets:type_name -> mq_pb.S3CircuitBreakerConfig.BucketsEntry
-	5, // 2: mq_pb.S3CircuitBreakerOptions.actions:type_name -> mq_pb.S3CircuitBreakerOptions.ActionsEntry
-	3, // 3: mq_pb.S3CircuitBreakerConfig.BucketsEntry.value:type_name -> mq_pb.S3CircuitBreakerOptions
-	0, // 4: mq_pb.SeaweedS3.Configure:input_type -> mq_pb.S3ConfigureRequest
-	1, // 5: mq_pb.SeaweedS3.Configure:output_type -> mq_pb.S3ConfigureResponse
+	3, // 0: messaging_pb.S3CircuitBreakerConfig.global:type_name -> messaging_pb.S3CircuitBreakerOptions
+	4, // 1: messaging_pb.S3CircuitBreakerConfig.buckets:type_name -> messaging_pb.S3CircuitBreakerConfig.BucketsEntry
+	5, // 2: messaging_pb.S3CircuitBreakerOptions.actions:type_name -> messaging_pb.S3CircuitBreakerOptions.ActionsEntry
+	3, // 3: messaging_pb.S3CircuitBreakerConfig.BucketsEntry.value:type_name -> messaging_pb.S3CircuitBreakerOptions
+	0, // 4: messaging_pb.SeaweedS3.Configure:input_type -> messaging_pb.S3ConfigureRequest
+	1, // 5: messaging_pb.SeaweedS3.Configure:output_type -> messaging_pb.S3ConfigureResponse
 	5, // [5:6] is the sub-list for method output_type
 	4, // [4:5] is the sub-list for method input_type
 	4, // [4:4] is the sub-list for extension type_name
diff --git a/weed/pb/s3_pb/s3_grpc.pb.go b/weed/pb/s3_pb/s3_grpc.pb.go
index c00268bad..1bc956be6 100644
--- a/weed/pb/s3_pb/s3_grpc.pb.go
+++ b/weed/pb/s3_pb/s3_grpc.pb.go
@@ -31,7 +31,7 @@ func NewSeaweedS3Client(cc grpc.ClientConnInterface) SeaweedS3Client {
 
 func (c *seaweedS3Client) Configure(ctx context.Context, in *S3ConfigureRequest, opts ...grpc.CallOption) (*S3ConfigureResponse, error) {
 	out := new(S3ConfigureResponse)
-	err := c.cc.Invoke(ctx, "/mq_pb.SeaweedS3/Configure", in, out, opts...)
+	err := c.cc.Invoke(ctx, "/messaging_pb.SeaweedS3/Configure", in, out, opts...)
 	if err != nil {
 		return nil, err
 	}
@@ -76,7 +76,7 @@ func _SeaweedS3_Configure_Handler(srv interface{}, ctx context.Context, dec func
 	}
 	info := &grpc.UnaryServerInfo{
 		Server:     srv,
-		FullMethod: "/mq_pb.SeaweedS3/Configure",
+		FullMethod: "/messaging_pb.SeaweedS3/Configure",
 	}
 	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
 		return srv.(SeaweedS3Server).Configure(ctx, req.(*S3ConfigureRequest))
@@ -88,7 +88,7 @@ func _SeaweedS3_Configure_Handler(srv interface{}, ctx context.Context, dec func
 // It's only intended for direct use with grpc.RegisterService,
 // and not to be introspected or modified (even as a copy)
 var SeaweedS3_ServiceDesc = grpc.ServiceDesc{
-	ServiceName: "mq_pb.SeaweedS3",
+	ServiceName: "messaging_pb.SeaweedS3",
 	HandlerType: (*SeaweedS3Server)(nil),
 	Methods: []grpc.MethodDesc{
 		{
diff --git a/weed/server/master_grpc_server.go b/weed/server/master_grpc_server.go
index 4f5455cb1..d530e238e 100644
--- a/weed/server/master_grpc_server.go
+++ b/weed/server/master_grpc_server.go
@@ -4,6 +4,7 @@ import (
 	"context"
 	"errors"
 	"fmt"
+	"github.com/chrislusf/seaweedfs/weed/cluster"
 	"net"
 	"sort"
 	"time"
@@ -253,12 +254,12 @@ func (ms *MasterServer) KeepConnected(stream master_pb.Seaweed_KeepConnectedServ
 	stopChan := make(chan bool, 1)
 
 	clientName, messageChan := ms.addClient(req.FilerGroup, req.ClientType, peerAddress)
-	for _, update := range ms.Cluster.AddClusterNode(req.FilerGroup, req.ClientType, peerAddress, req.Version) {
+	for _, update := range ms.Cluster.AddClusterNode(req.FilerGroup, req.ClientType, cluster.DataCenter(req.DataCenter), cluster.Rack(req.Rack), peerAddress, req.Version) {
 		ms.broadcastToClients(update)
 	}
 
 	defer func() {
-		for _, update := range ms.Cluster.RemoveClusterNode(req.FilerGroup, req.ClientType, peerAddress) {
+		for _, update := range ms.Cluster.RemoveClusterNode(req.FilerGroup, req.ClientType, cluster.DataCenter(req.DataCenter), cluster.Rack(req.Rack), peerAddress) {
 			ms.broadcastToClients(update)
 		}
 		ms.deleteClient(clientName)
diff --git a/weed/server/master_server.go b/weed/server/master_server.go
index 9bf840f08..756d14dbc 100644
--- a/weed/server/master_server.go
+++ b/weed/server/master_server.go
@@ -113,7 +113,7 @@ func NewMasterServer(r *mux.Router, option *MasterOption, peers map[string]pb.Se
 		vgCh:            make(chan *topology.VolumeGrowRequest, 1<<6),
 		clientChans:     make(map[string]chan *master_pb.KeepConnectedResponse),
 		grpcDialOption:  grpcDialOption,
-		MasterClient:    wdclient.NewMasterClient(grpcDialOption, "", cluster.MasterType, option.Master, "", peers),
+		MasterClient:    wdclient.NewMasterClient(grpcDialOption, "", cluster.MasterType, option.Master, "", "", peers),
 		adminLocks:      NewAdminLocks(),
 		Cluster:         cluster.NewCluster(),
 	}
diff --git a/weed/shell/commands.go b/weed/shell/commands.go
index 08f639d34..51b4062d5 100644
--- a/weed/shell/commands.go
+++ b/weed/shell/commands.go
@@ -47,7 +47,7 @@ var (
 func NewCommandEnv(options *ShellOptions) *CommandEnv {
 	ce := &CommandEnv{
 		env:          make(map[string]string),
-		MasterClient: wdclient.NewMasterClient(options.GrpcDialOption, *options.FilerGroup, pb.AdminShellClient, "", "", pb.ServerAddresses(*options.Masters).ToAddressMap()),
+		MasterClient: wdclient.NewMasterClient(options.GrpcDialOption, *options.FilerGroup, pb.AdminShellClient, "", "", "", pb.ServerAddresses(*options.Masters).ToAddressMap()),
 		option:       options,
 	}
 	ce.locker = exclusive_locks.NewExclusiveLocker(ce.MasterClient, "admin")
diff --git a/weed/wdclient/masterclient.go b/weed/wdclient/masterclient.go
index 3e76dc0c5..667549686 100644
--- a/weed/wdclient/masterclient.go
+++ b/weed/wdclient/masterclient.go
@@ -18,6 +18,7 @@ type MasterClient struct {
 	FilerGroup     string
 	clientType     string
 	clientHost     pb.ServerAddress
+	rack           string
 	currentMaster  pb.ServerAddress
 	masters        map[string]pb.ServerAddress
 	grpcDialOption grpc.DialOption
@@ -27,11 +28,12 @@ type MasterClient struct {
 	OnPeerUpdate func(update *master_pb.ClusterNodeUpdate, startFrom time.Time)
 }
 
-func NewMasterClient(grpcDialOption grpc.DialOption, filerGroup string, clientType string, clientHost pb.ServerAddress, clientDataCenter string, masters map[string]pb.ServerAddress) *MasterClient {
+func NewMasterClient(grpcDialOption grpc.DialOption, filerGroup string, clientType string, clientHost pb.ServerAddress, clientDataCenter string, rack string, masters map[string]pb.ServerAddress) *MasterClient {
 	return &MasterClient{
 		FilerGroup:     filerGroup,
 		clientType:     clientType,
 		clientHost:     clientHost,
+		rack:           rack,
 		masters:        masters,
 		grpcDialOption: grpcDialOption,
 		vidMap:         newVidMap(clientDataCenter),
@@ -150,6 +152,8 @@ func (mc *MasterClient) tryConnectToMaster(master pb.ServerAddress) (nextHintedL
 
 		if err = stream.Send(&master_pb.KeepConnectedRequest{
 			FilerGroup:    mc.FilerGroup,
+			DataCenter:    mc.DataCenter,
+			Rack:          mc.rack,
 			ClientType:    mc.clientType,
 			ClientAddress: string(mc.clientHost),
 			Version:       util.Version(),

From 3254f18343735182d36d12fe42622efa567f4787 Mon Sep 17 00:00:00 2001
From: chrislu <chris.lu@gmail.com>
Date: Sun, 3 Jul 2022 00:55:37 -0700
Subject: [PATCH 08/17] display data center and rack in cluster.ps

---
 weed/cluster/cluster.go                   |  32 +-
 weed/mq/broker/broker_server.go           |   2 +-
 weed/pb/master.proto                      |   2 +
 weed/pb/master_pb/master.pb.go            | 366 ++++++++++++----------
 weed/server/master_grpc_server_cluster.go |   2 +
 weed/shell/command_cluster_ps.go          |  12 +
 6 files changed, 230 insertions(+), 186 deletions(-)

diff --git a/weed/cluster/cluster.go b/weed/cluster/cluster.go
index 1802ecda0..0d9886911 100644
--- a/weed/cluster/cluster.go
+++ b/weed/cluster/cluster.go
@@ -34,10 +34,12 @@ type RackBrokers struct {
 }
 
 type ClusterNode struct {
-	Address   pb.ServerAddress
-	Version   string
-	counter   int
-	CreatedTs time.Time
+	Address    pb.ServerAddress
+	Version    string
+	counter    int
+	CreatedTs  time.Time
+	DataCenter DataCenter
+	Rack       Rack
 }
 
 type Cluster struct {
@@ -78,10 +80,12 @@ func (cluster *Cluster) AddClusterNode(ns, nodeType string, dataCenter DataCente
 			return nil
 		}
 		filers.filers[address] = &ClusterNode{
-			Address:   address,
-			Version:   version,
-			counter:   1,
-			CreatedTs: time.Now(),
+			Address:    address,
+			Version:    version,
+			counter:    1,
+			CreatedTs:  time.Now(),
+			DataCenter: dataCenter,
+			Rack:       rack,
 		}
 		return cluster.ensureFilerLeaders(filers, true, filerGroup, nodeType, address)
 	case BrokerType:
@@ -92,12 +96,14 @@ func (cluster *Cluster) AddClusterNode(ns, nodeType string, dataCenter DataCente
 			existingDataCenterBrokers = &DataCenterBrokers{
 				brokers: make(map[Rack]*RackBrokers),
 			}
+			cluster.brokers[dataCenter] = existingDataCenterBrokers
 		}
 		existingRackBrokers, foundRack := existingDataCenterBrokers.brokers[rack]
 		if !foundRack {
 			existingRackBrokers = &RackBrokers{
 				brokers: make(map[pb.ServerAddress]*ClusterNode),
 			}
+			existingDataCenterBrokers.brokers[rack] = existingRackBrokers
 		}
 
 		if existingBroker, found := existingRackBrokers.brokers[address]; found {
@@ -105,10 +111,12 @@ func (cluster *Cluster) AddClusterNode(ns, nodeType string, dataCenter DataCente
 			return nil
 		}
 		existingRackBrokers.brokers[address] = &ClusterNode{
-			Address:   address,
-			Version:   version,
-			counter:   1,
-			CreatedTs: time.Now(),
+			Address:    address,
+			Version:    version,
+			counter:    1,
+			CreatedTs:  time.Now(),
+			DataCenter: dataCenter,
+			Rack:       rack,
 		}
 		return []*master_pb.KeepConnectedResponse{
 			{
diff --git a/weed/mq/broker/broker_server.go b/weed/mq/broker/broker_server.go
index 1887498d2..36f216a48 100644
--- a/weed/mq/broker/broker_server.go
+++ b/weed/mq/broker/broker_server.go
@@ -41,7 +41,7 @@ func NewMessageBroker(option *MessageQueueBrokerOption, grpcDialOption grpc.Dial
 	mqBroker = &MessageQueueBroker{
 		option:         option,
 		grpcDialOption: grpcDialOption,
-		MasterClient:   wdclient.NewMasterClient(grpcDialOption, option.FilerGroup, cluster.BrokerType, pb.NewServerAddress(option.Ip, option.Port, 0), option.DataCenter, "", option.Masters),
+		MasterClient:   wdclient.NewMasterClient(grpcDialOption, option.FilerGroup, cluster.BrokerType, pb.NewServerAddress(option.Ip, option.Port, 0), option.DataCenter, option.Rack, option.Masters),
 	}
 
 	mqBroker.topicManager = NewTopicManager(mqBroker)
diff --git a/weed/pb/master.proto b/weed/pb/master.proto
index cb89913ac..19d2da16c 100644
--- a/weed/pb/master.proto
+++ b/weed/pb/master.proto
@@ -324,6 +324,8 @@ message ListClusterNodesResponse {
     string version = 2;
     bool is_leader = 3;
     int64 created_at_ns = 4;
+    string data_center = 5;
+    string rack = 6;
   }
   repeated ClusterNode cluster_nodes = 1;
 }
diff --git a/weed/pb/master_pb/master.pb.go b/weed/pb/master_pb/master.pb.go
index dce816000..12372e62e 100644
--- a/weed/pb/master_pb/master.pb.go
+++ b/weed/pb/master_pb/master.pb.go
@@ -3559,6 +3559,8 @@ type ListClusterNodesResponse_ClusterNode struct {
 	Version     string `protobuf:"bytes,2,opt,name=version,proto3" json:"version,omitempty"`
 	IsLeader    bool   `protobuf:"varint,3,opt,name=is_leader,json=isLeader,proto3" json:"is_leader,omitempty"`
 	CreatedAtNs int64  `protobuf:"varint,4,opt,name=created_at_ns,json=createdAtNs,proto3" json:"created_at_ns,omitempty"`
+	DataCenter  string `protobuf:"bytes,5,opt,name=data_center,json=dataCenter,proto3" json:"data_center,omitempty"`
+	Rack        string `protobuf:"bytes,6,opt,name=rack,proto3" json:"rack,omitempty"`
 }
 
 func (x *ListClusterNodesResponse_ClusterNode) Reset() {
@@ -3621,6 +3623,20 @@ func (x *ListClusterNodesResponse_ClusterNode) GetCreatedAtNs() int64 {
 	return 0
 }
 
+func (x *ListClusterNodesResponse_ClusterNode) GetDataCenter() string {
+	if x != nil {
+		return x.DataCenter
+	}
+	return ""
+}
+
+func (x *ListClusterNodesResponse_ClusterNode) GetRack() string {
+	if x != nil {
+		return x.Rack
+	}
+	return ""
+}
+
 type RaftListClusterServersResponse_ClusterServers struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -4155,14 +4171,14 @@ var file_master_proto_rawDesc = []byte{
 	0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x0a, 0x63, 0x6c, 0x69, 0x65, 0x6e, 0x74, 0x54, 0x79, 0x70,
 	0x65, 0x12, 0x1f, 0x0a, 0x0b, 0x66, 0x69, 0x6c, 0x65, 0x72, 0x5f, 0x67, 0x72, 0x6f, 0x75, 0x70,
 	0x18, 0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x0a, 0x66, 0x69, 0x6c, 0x65, 0x72, 0x47, 0x72, 0x6f,
-	0x75, 0x70, 0x22, 0xf5, 0x01, 0x0a, 0x18, 0x4c, 0x69, 0x73, 0x74, 0x43, 0x6c, 0x75, 0x73, 0x74,
+	0x75, 0x70, 0x22, 0xaa, 0x02, 0x0a, 0x18, 0x4c, 0x69, 0x73, 0x74, 0x43, 0x6c, 0x75, 0x73, 0x74,
 	0x65, 0x72, 0x4e, 0x6f, 0x64, 0x65, 0x73, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x12,
 	0x54, 0x0a, 0x0d, 0x63, 0x6c, 0x75, 0x73, 0x74, 0x65, 0x72, 0x5f, 0x6e, 0x6f, 0x64, 0x65, 0x73,
 	0x18, 0x01, 0x20, 0x03, 0x28, 0x0b, 0x32, 0x2f, 0x2e, 0x6d, 0x61, 0x73, 0x74, 0x65, 0x72, 0x5f,
 	0x70, 0x62, 0x2e, 0x4c, 0x69, 0x73, 0x74, 0x43, 0x6c, 0x75, 0x73, 0x74, 0x65, 0x72, 0x4e, 0x6f,
 	0x64, 0x65, 0x73, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x2e, 0x43, 0x6c, 0x75, 0x73,
 	0x74, 0x65, 0x72, 0x4e, 0x6f, 0x64, 0x65, 0x52, 0x0c, 0x63, 0x6c, 0x75, 0x73, 0x74, 0x65, 0x72,
-	0x4e, 0x6f, 0x64, 0x65, 0x73, 0x1a, 0x82, 0x01, 0x0a, 0x0b, 0x43, 0x6c, 0x75, 0x73, 0x74, 0x65,
+	0x4e, 0x6f, 0x64, 0x65, 0x73, 0x1a, 0xb7, 0x01, 0x0a, 0x0b, 0x43, 0x6c, 0x75, 0x73, 0x74, 0x65,
 	0x72, 0x4e, 0x6f, 0x64, 0x65, 0x12, 0x18, 0x0a, 0x07, 0x61, 0x64, 0x64, 0x72, 0x65, 0x73, 0x73,
 	0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x07, 0x61, 0x64, 0x64, 0x72, 0x65, 0x73, 0x73, 0x12,
 	0x18, 0x0a, 0x07, 0x76, 0x65, 0x72, 0x73, 0x69, 0x6f, 0x6e, 0x18, 0x02, 0x20, 0x01, 0x28, 0x09,
@@ -4170,179 +4186,183 @@ var file_master_proto_rawDesc = []byte{
 	0x6c, 0x65, 0x61, 0x64, 0x65, 0x72, 0x18, 0x03, 0x20, 0x01, 0x28, 0x08, 0x52, 0x08, 0x69, 0x73,
 	0x4c, 0x65, 0x61, 0x64, 0x65, 0x72, 0x12, 0x22, 0x0a, 0x0d, 0x63, 0x72, 0x65, 0x61, 0x74, 0x65,
 	0x64, 0x5f, 0x61, 0x74, 0x5f, 0x6e, 0x73, 0x18, 0x04, 0x20, 0x01, 0x28, 0x03, 0x52, 0x0b, 0x63,
-	0x72, 0x65, 0x61, 0x74, 0x65, 0x64, 0x41, 0x74, 0x4e, 0x73, 0x22, 0xc5, 0x01, 0x0a, 0x16, 0x4c,
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+	0x61, 0x66, 0x74, 0x41, 0x64, 0x64, 0x53, 0x65, 0x72, 0x76, 0x65, 0x72, 0x52, 0x65, 0x73, 0x70,
+	0x6f, 0x6e, 0x73, 0x65, 0x22, 0x00, 0x12, 0x5d, 0x0a, 0x10, 0x52, 0x61, 0x66, 0x74, 0x52, 0x65,
+	0x6d, 0x6f, 0x76, 0x65, 0x53, 0x65, 0x72, 0x76, 0x65, 0x72, 0x12, 0x22, 0x2e, 0x6d, 0x61, 0x73,
+	0x74, 0x65, 0x72, 0x5f, 0x70, 0x62, 0x2e, 0x52, 0x61, 0x66, 0x74, 0x52, 0x65, 0x6d, 0x6f, 0x76,
+	0x65, 0x53, 0x65, 0x72, 0x76, 0x65, 0x72, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x23,
+	0x2e, 0x6d, 0x61, 0x73, 0x74, 0x65, 0x72, 0x5f, 0x70, 0x62, 0x2e, 0x52, 0x61, 0x66, 0x74, 0x52,
+	0x65, 0x6d, 0x6f, 0x76, 0x65, 0x53, 0x65, 0x72, 0x76, 0x65, 0x72, 0x52, 0x65, 0x73, 0x70, 0x6f,
+	0x6e, 0x73, 0x65, 0x22, 0x00, 0x42, 0x32, 0x5a, 0x30, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e,
+	0x63, 0x6f, 0x6d, 0x2f, 0x63, 0x68, 0x72, 0x69, 0x73, 0x6c, 0x75, 0x73, 0x66, 0x2f, 0x73, 0x65,
+	0x61, 0x77, 0x65, 0x65, 0x64, 0x66, 0x73, 0x2f, 0x77, 0x65, 0x65, 0x64, 0x2f, 0x70, 0x62, 0x2f,
+	0x6d, 0x61, 0x73, 0x74, 0x65, 0x72, 0x5f, 0x70, 0x62, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f,
+	0x33,
 }
 
 var (
diff --git a/weed/server/master_grpc_server_cluster.go b/weed/server/master_grpc_server_cluster.go
index fea4a66aa..31d7a6658 100644
--- a/weed/server/master_grpc_server_cluster.go
+++ b/weed/server/master_grpc_server_cluster.go
@@ -19,6 +19,8 @@ func (ms *MasterServer) ListClusterNodes(ctx context.Context, req *master_pb.Lis
 			Version:     node.Version,
 			IsLeader:    ms.Cluster.IsOneLeader(filerGroup, node.Address),
 			CreatedAtNs: node.CreatedTs.UnixNano(),
+			DataCenter:  string(node.DataCenter),
+			Rack:        string(node.Rack),
 		})
 	}
 	return resp, nil
diff --git a/weed/shell/command_cluster_ps.go b/weed/shell/command_cluster_ps.go
index fc5f801b1..974815a15 100644
--- a/weed/shell/command_cluster_ps.go
+++ b/weed/shell/command_cluster_ps.go
@@ -80,12 +80,24 @@ func (c *commandClusterPs) Do(args []string, commandEnv *CommandEnv, writer io.W
 		fmt.Fprintf(writer, "* message queue brokers %d\n", len(mqBrokerNodes))
 		for _, node := range mqBrokerNodes {
 			fmt.Fprintf(writer, "  * %s (%v)\n", node.Address, node.Version)
+			if node.DataCenter != "" {
+				fmt.Fprintf(writer, "    DataCenter: %v\n", node.DataCenter)
+			}
+			if node.Rack != "" {
+				fmt.Fprintf(writer, "    Rack: %v\n", node.Rack)
+			}
 		}
 	}
 
 	fmt.Fprintf(writer, "* filers %d\n", len(filerNodes))
 	for _, node := range filerNodes {
 		fmt.Fprintf(writer, "  * %s (%v)\n", node.Address, node.Version)
+		if node.DataCenter != "" {
+			fmt.Fprintf(writer, "    DataCenter: %v\n", node.DataCenter)
+		}
+		if node.Rack != "" {
+			fmt.Fprintf(writer, "    Rack: %v\n", node.Rack)
+		}
 		pb.WithFilerClient(false, pb.ServerAddress(node.Address), commandEnv.option.GrpcDialOption, func(client filer_pb.SeaweedFilerClient) error {
 			resp, err := client.GetFilerConfiguration(context.Background(), &filer_pb.GetFilerConfigurationRequest{})
 			if err == nil {

From 7db6666b9784d48f3ac7ef621714d114ff05d537 Mon Sep 17 00:00:00 2001
From: chrislu <chris.lu@gmail.com>
Date: Sun, 10 Jul 2022 01:36:23 -0700
Subject: [PATCH 09/17] remove old code

---
 other/java/client/src/main/proto/filer.proto  |    6 -
 weed/mq/broker.go                             |   12 +
 weed/mq/broker/broker_append.go               |  130 --
 weed/mq/broker/broker_grpc_server.go          |   37 -
 .../mq/broker/broker_grpc_server_discovery.go |   50 -
 weed/mq/broker/broker_grpc_server_publish.go  |  112 --
 .../mq/broker/broker_grpc_server_subscribe.go |  178 --
 weed/mq/broker/broker_server.go               |   64 -
 weed/mq/broker/topic_manager.go               |  124 --
 weed/mq/msgclient/chan_config.go              |    5 -
 weed/mq/msgclient/chan_pub.go                 |   76 -
 weed/mq/msgclient/chan_sub.go                 |   85 -
 weed/mq/msgclient/client.go                   |   55 -
 weed/mq/msgclient/config.go                   |   63 -
 weed/mq/msgclient/publisher.go                |  118 --
 weed/mq/msgclient/subscriber.go               |  120 --
 weed/mq/topic.go                              |   23 +
 weed/pb/filer.proto                           |    6 -
 weed/pb/filer_pb/filer.pb.go                  |  111 +-
 weed/pb/filer_pb/filer_grpc.pb.go             |  104 --
 weed/pb/mq.proto                              |  107 --
 weed/pb/mq_pb/mq.pb.go                        | 1615 +----------------
 weed/pb/mq_pb/mq_grpc.pb.go                   |  247 +--
 weed/server/filer_grpc_server_admin.go        |   72 -
 weed/server/filer_server.go                   |    4 -
 25 files changed, 151 insertions(+), 3373 deletions(-)
 create mode 100644 weed/mq/broker.go
 delete mode 100644 weed/mq/broker/broker_append.go
 delete mode 100644 weed/mq/broker/broker_grpc_server.go
 delete mode 100644 weed/mq/broker/broker_grpc_server_publish.go
 delete mode 100644 weed/mq/broker/broker_grpc_server_subscribe.go
 delete mode 100644 weed/mq/broker/topic_manager.go
 delete mode 100644 weed/mq/msgclient/chan_config.go
 delete mode 100644 weed/mq/msgclient/chan_pub.go
 delete mode 100644 weed/mq/msgclient/chan_sub.go
 delete mode 100644 weed/mq/msgclient/client.go
 delete mode 100644 weed/mq/msgclient/config.go
 delete mode 100644 weed/mq/msgclient/publisher.go
 delete mode 100644 weed/mq/msgclient/subscriber.go
 create mode 100644 weed/mq/topic.go

diff --git a/other/java/client/src/main/proto/filer.proto b/other/java/client/src/main/proto/filer.proto
index bd0932cb8..bde42a80c 100644
--- a/other/java/client/src/main/proto/filer.proto
+++ b/other/java/client/src/main/proto/filer.proto
@@ -60,12 +60,6 @@ service SeaweedFiler {
     rpc SubscribeLocalMetadata (SubscribeMetadataRequest) returns (stream SubscribeMetadataResponse) {
     }
 
-    rpc KeepConnected (stream KeepConnectedRequest) returns (stream KeepConnectedResponse) {
-    }
-
-    rpc LocateBroker (LocateBrokerRequest) returns (LocateBrokerResponse) {
-    }
-
     rpc KvGet (KvGetRequest) returns (KvGetResponse) {
     }
 
diff --git a/weed/mq/broker.go b/weed/mq/broker.go
new file mode 100644
index 000000000..8debcec0b
--- /dev/null
+++ b/weed/mq/broker.go
@@ -0,0 +1,12 @@
+package mq
+
+const LAST_MINUTES = 10
+
+type TopicStat struct {
+	MessageCounts [LAST_MINUTES]int64
+	ByteCounts    [LAST_MINUTES]int64
+}
+
+func NewTopicStat() *TopicStat {
+	return &TopicStat{}
+}
diff --git a/weed/mq/broker/broker_append.go b/weed/mq/broker/broker_append.go
deleted file mode 100644
index c8e0da93c..000000000
--- a/weed/mq/broker/broker_append.go
+++ /dev/null
@@ -1,130 +0,0 @@
-package broker
-
-import (
-	"context"
-	"fmt"
-	"github.com/chrislusf/seaweedfs/weed/security"
-	"io"
-
-	"github.com/chrislusf/seaweedfs/weed/glog"
-	"github.com/chrislusf/seaweedfs/weed/operation"
-	"github.com/chrislusf/seaweedfs/weed/pb"
-	"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
-	"github.com/chrislusf/seaweedfs/weed/pb/mq_pb"
-	"github.com/chrislusf/seaweedfs/weed/util"
-)
-
-func (broker *MessageQueueBroker) appendToFile(targetFile string, topicConfig *mq_pb.TopicConfiguration, data []byte) error {
-
-	assignResult, uploadResult, err2 := broker.assignAndUpload(topicConfig, data)
-	if err2 != nil {
-		return err2
-	}
-
-	dir, name := util.FullPath(targetFile).DirAndName()
-
-	// append the chunk
-	if err := broker.WithFilerClient(false, func(client filer_pb.SeaweedFilerClient) error {
-
-		request := &filer_pb.AppendToEntryRequest{
-			Directory: dir,
-			EntryName: name,
-			Chunks:    []*filer_pb.FileChunk{uploadResult.ToPbFileChunk(assignResult.Fid, 0)},
-		}
-
-		_, err := client.AppendToEntry(context.Background(), request)
-		if err != nil {
-			glog.V(0).Infof("append to file %v: %v", request, err)
-			return err
-		}
-
-		return nil
-	}); err != nil {
-		return fmt.Errorf("append to file %v: %v", targetFile, err)
-	}
-
-	return nil
-}
-
-func (broker *MessageQueueBroker) assignAndUpload(topicConfig *mq_pb.TopicConfiguration, data []byte) (*operation.AssignResult, *operation.UploadResult, error) {
-
-	var assignResult = &operation.AssignResult{}
-
-	// assign a volume location
-	if err := broker.WithFilerClient(false, func(client filer_pb.SeaweedFilerClient) error {
-
-		assignErr := util.Retry("assignVolume", func() error {
-			request := &filer_pb.AssignVolumeRequest{
-				Count:       1,
-				Replication: topicConfig.Replication,
-				Collection:  topicConfig.Collection,
-			}
-
-			resp, err := client.AssignVolume(context.Background(), request)
-			if err != nil {
-				glog.V(0).Infof("assign volume failure %v: %v", request, err)
-				return err
-			}
-			if resp.Error != "" {
-				return fmt.Errorf("assign volume failure %v: %v", request, resp.Error)
-			}
-
-			assignResult.Auth = security.EncodedJwt(resp.Auth)
-			assignResult.Fid = resp.FileId
-			assignResult.Url = resp.Location.Url
-			assignResult.PublicUrl = resp.Location.PublicUrl
-			assignResult.GrpcPort = int(resp.Location.GrpcPort)
-			assignResult.Count = uint64(resp.Count)
-
-			return nil
-		})
-		if assignErr != nil {
-			return assignErr
-		}
-
-		return nil
-	}); err != nil {
-		return nil, nil, err
-	}
-
-	// upload data
-	targetUrl := fmt.Sprintf("http://%s/%s", assignResult.Url, assignResult.Fid)
-	uploadOption := &operation.UploadOption{
-		UploadUrl:         targetUrl,
-		Filename:          "",
-		Cipher:            broker.option.Cipher,
-		IsInputCompressed: false,
-		MimeType:          "",
-		PairMap:           nil,
-		Jwt:               assignResult.Auth,
-	}
-	uploadResult, err := operation.UploadData(data, uploadOption)
-	if err != nil {
-		return nil, nil, fmt.Errorf("upload data %s: %v", targetUrl, err)
-	}
-	// println("uploaded to", targetUrl)
-	return assignResult, uploadResult, nil
-}
-
-var _ = filer_pb.FilerClient(&MessageQueueBroker{})
-
-func (broker *MessageQueueBroker) WithFilerClient(streamingMode bool, fn func(filer_pb.SeaweedFilerClient) error) (err error) {
-
-	for _, filer := range broker.option.Filers {
-		if err = pb.WithFilerClient(streamingMode, filer, broker.grpcDialOption, fn); err != nil {
-			if err == io.EOF {
-				return
-			}
-			glog.V(0).Infof("fail to connect to %s: %v", filer, err)
-		} else {
-			break
-		}
-	}
-
-	return
-
-}
-
-func (broker *MessageQueueBroker) AdjustedUrl(location *filer_pb.Location) string {
-	return location.Url
-}
diff --git a/weed/mq/broker/broker_grpc_server.go b/weed/mq/broker/broker_grpc_server.go
deleted file mode 100644
index 2cb4187ae..000000000
--- a/weed/mq/broker/broker_grpc_server.go
+++ /dev/null
@@ -1,37 +0,0 @@
-package broker
-
-import (
-	"context"
-	"fmt"
-
-	"github.com/chrislusf/seaweedfs/weed/filer"
-	"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
-	"github.com/chrislusf/seaweedfs/weed/pb/mq_pb"
-)
-
-func (broker *MessageQueueBroker) ConfigureTopic(c context.Context, request *mq_pb.ConfigureTopicRequest) (*mq_pb.ConfigureTopicResponse, error) {
-	panic("implement me")
-}
-
-func (broker *MessageQueueBroker) DeleteTopic(c context.Context, request *mq_pb.DeleteTopicRequest) (*mq_pb.DeleteTopicResponse, error) {
-	resp := &mq_pb.DeleteTopicResponse{}
-	dir, entry := genTopicDirEntry(request.Namespace, request.Topic)
-	if exists, err := filer_pb.Exists(broker, dir, entry, true); err != nil {
-		return nil, err
-	} else if exists {
-		err = filer_pb.Remove(broker, dir, entry, true, true, true, false, nil)
-	}
-	return resp, nil
-}
-
-func (broker *MessageQueueBroker) GetTopicConfiguration(c context.Context, request *mq_pb.GetTopicConfigurationRequest) (*mq_pb.GetTopicConfigurationResponse, error) {
-	panic("implement me")
-}
-
-func genTopicDir(namespace, topic string) string {
-	return fmt.Sprintf("%s/%s/%s", filer.TopicsDir, namespace, topic)
-}
-
-func genTopicDirEntry(namespace, topic string) (dir, entry string) {
-	return fmt.Sprintf("%s/%s", filer.TopicsDir, namespace), topic
-}
diff --git a/weed/mq/broker/broker_grpc_server_discovery.go b/weed/mq/broker/broker_grpc_server_discovery.go
index e276091a9..94e89cd41 100644
--- a/weed/mq/broker/broker_grpc_server_discovery.go
+++ b/weed/mq/broker/broker_grpc_server_discovery.go
@@ -2,7 +2,6 @@ package broker
 
 import (
 	"context"
-	"fmt"
 	"github.com/chrislusf/seaweedfs/weed/cluster"
 	"github.com/chrislusf/seaweedfs/weed/pb"
 	"time"
@@ -10,57 +9,8 @@ import (
 	"github.com/chrislusf/seaweedfs/weed/glog"
 	"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
 	"github.com/chrislusf/seaweedfs/weed/pb/master_pb"
-	"github.com/chrislusf/seaweedfs/weed/pb/mq_pb"
 )
 
-/*
-Topic discovery:
-
-When pub or sub connects, it ask for the whole broker list, and run consistent hashing to find the broker.
-
-The broker will check peers whether it is already hosted by some other broker, if that broker is alive and acknowledged alive, redirect to it.
-Otherwise, just host the topic.
-
-So, if the pub or sub connects around the same time, they would connect to the same broker. Everyone is happy.
-If one of the pub or sub connects very late, and the system topo changed quite a bit with new servers added or old servers died, checking peers will help.
-
-*/
-
-func (broker *MessageQueueBroker) FindBroker(c context.Context, request *mq_pb.FindBrokerRequest) (*mq_pb.FindBrokerResponse, error) {
-
-	t := &mq_pb.FindBrokerResponse{}
-	var peers []string
-
-	targetTopicPartition := fmt.Sprintf(TopicPartitionFmt, request.Namespace, request.Topic, request.Parition)
-
-	for _, filer := range broker.option.Filers {
-		err := broker.withFilerClient(false, filer, func(client filer_pb.SeaweedFilerClient) error {
-			resp, err := client.LocateBroker(context.Background(), &filer_pb.LocateBrokerRequest{
-				Resource: targetTopicPartition,
-			})
-			if err != nil {
-				return err
-			}
-			if resp.Found && len(resp.Resources) > 0 {
-				t.Broker = resp.Resources[0].GrpcAddresses
-				return nil
-			}
-			for _, b := range resp.Resources {
-				peers = append(peers, b.GrpcAddresses)
-			}
-			return nil
-		})
-		if err != nil {
-			return nil, err
-		}
-	}
-
-	t.Broker = PickMember(peers, []byte(targetTopicPartition))
-
-	return t, nil
-
-}
-
 func (broker *MessageQueueBroker) checkFilers() {
 
 	// contact a filer about masters
diff --git a/weed/mq/broker/broker_grpc_server_publish.go b/weed/mq/broker/broker_grpc_server_publish.go
deleted file mode 100644
index eb76dd5dc..000000000
--- a/weed/mq/broker/broker_grpc_server_publish.go
+++ /dev/null
@@ -1,112 +0,0 @@
-package broker
-
-import (
-	"crypto/md5"
-	"fmt"
-	"io"
-
-	"github.com/golang/protobuf/proto"
-
-	"github.com/chrislusf/seaweedfs/weed/filer"
-	"github.com/chrislusf/seaweedfs/weed/glog"
-	"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
-	"github.com/chrislusf/seaweedfs/weed/pb/mq_pb"
-)
-
-func (broker *MessageQueueBroker) Publish(stream mq_pb.SeaweedMessaging_PublishServer) error {
-
-	// process initial request
-	in, err := stream.Recv()
-	if err == io.EOF {
-		return nil
-	}
-	if err != nil {
-		return err
-	}
-
-	// TODO look it up
-	topicConfig := &mq_pb.TopicConfiguration{
-		// IsTransient: true,
-	}
-
-	// send init response
-	initResponse := &mq_pb.PublishResponse{
-		Config:   nil,
-		Redirect: nil,
-	}
-	err = stream.Send(initResponse)
-	if err != nil {
-		return err
-	}
-	if initResponse.Redirect != nil {
-		return nil
-	}
-
-	// get lock
-	tp := TopicPartition{
-		Namespace: in.Init.Namespace,
-		Topic:     in.Init.Topic,
-		Partition: in.Init.Partition,
-	}
-
-	tpDir := fmt.Sprintf("%s/%s/%s", filer.TopicsDir, tp.Namespace, tp.Topic)
-	md5File := fmt.Sprintf("p%02d.md5", tp.Partition)
-	// println("chan data stored under", tpDir, "as", md5File)
-
-	if exists, err := filer_pb.Exists(broker, tpDir, md5File, false); err == nil && exists {
-		return fmt.Errorf("channel is already closed")
-	}
-
-	tl := broker.topicManager.RequestLock(tp, topicConfig, true)
-	defer broker.topicManager.ReleaseLock(tp, true)
-
-	md5hash := md5.New()
-	// process each message
-	for {
-		// println("recv")
-		in, err := stream.Recv()
-		// glog.V(0).Infof("recieved %v err: %v", in, err)
-		if err == io.EOF {
-			return nil
-		}
-		if err != nil {
-			return err
-		}
-
-		if in.Data == nil {
-			continue
-		}
-
-		// fmt.Printf("received: %d : %s\n", len(in.Data.Value), string(in.Data.Value))
-
-		data, err := proto.Marshal(in.Data)
-		if err != nil {
-			glog.Errorf("marshall error: %v\n", err)
-			continue
-		}
-
-		tl.logBuffer.AddToBuffer(in.Data.Key, data, in.Data.EventTimeNs)
-
-		if in.Data.IsClose {
-			// println("server received closing")
-			break
-		}
-
-		md5hash.Write(in.Data.Value)
-
-	}
-
-	if err := broker.appendToFile(tpDir+"/"+md5File, topicConfig, md5hash.Sum(nil)); err != nil {
-		glog.V(0).Infof("err writing %s: %v", md5File, err)
-	}
-
-	// fmt.Printf("received md5 %X\n", md5hash.Sum(nil))
-
-	// send the close ack
-	// println("server send ack closing")
-	if err := stream.Send(&mq_pb.PublishResponse{IsClosed: true}); err != nil {
-		glog.V(0).Infof("err sending close response: %v", err)
-	}
-	return nil
-
-}
diff --git a/weed/mq/broker/broker_grpc_server_subscribe.go b/weed/mq/broker/broker_grpc_server_subscribe.go
deleted file mode 100644
index 3743218b1..000000000
--- a/weed/mq/broker/broker_grpc_server_subscribe.go
+++ /dev/null
@@ -1,178 +0,0 @@
-package broker
-
-import (
-	"fmt"
-	"github.com/chrislusf/seaweedfs/weed/util"
-	"github.com/chrislusf/seaweedfs/weed/util/log_buffer"
-	"io"
-	"strings"
-	"time"
-
-	"github.com/golang/protobuf/proto"
-
-	"github.com/chrislusf/seaweedfs/weed/filer"
-	"github.com/chrislusf/seaweedfs/weed/glog"
-	"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
-	"github.com/chrislusf/seaweedfs/weed/pb/mq_pb"
-)
-
-func (broker *MessageQueueBroker) Subscribe(stream mq_pb.SeaweedMessaging_SubscribeServer) error {
-
-	// process initial request
-	in, err := stream.Recv()
-	if err == io.EOF {
-		return nil
-	}
-	if err != nil {
-		return err
-	}
-
-	var processedTsNs int64
-	var messageCount int64
-	subscriberId := in.Init.SubscriberId
-
-	// TODO look it up
-	topicConfig := &mq_pb.TopicConfiguration{
-		// IsTransient: true,
-	}
-
-	// get lock
-	tp := TopicPartition{
-		Namespace: in.Init.Namespace,
-		Topic:     in.Init.Topic,
-		Partition: in.Init.Partition,
-	}
-	fmt.Printf("+ subscriber %s for %s\n", subscriberId, tp.String())
-	defer func() {
-		fmt.Printf("- subscriber %s for %s %d messages last %v\n", subscriberId, tp.String(), messageCount, time.Unix(0, processedTsNs))
-	}()
-
-	lock := broker.topicManager.RequestLock(tp, topicConfig, false)
-	defer broker.topicManager.ReleaseLock(tp, false)
-
-	isConnected := true
-	go func() {
-		for isConnected {
-			if _, err := stream.Recv(); err != nil {
-				// println("disconnecting connection to", subscriberId, tp.String())
-				isConnected = false
-				lock.cond.Signal()
-			}
-		}
-	}()
-
-	lastReadTime := time.Now()
-	switch in.Init.StartPosition {
-	case mq_pb.SubscriberMessage_InitMessage_TIMESTAMP:
-		lastReadTime = time.Unix(0, in.Init.TimestampNs)
-	case mq_pb.SubscriberMessage_InitMessage_LATEST:
-	case mq_pb.SubscriberMessage_InitMessage_EARLIEST:
-		lastReadTime = time.Unix(0, 0)
-	}
-
-	// how to process each message
-	// an error returned will end the subscription
-	eachMessageFn := func(m *mq_pb.Message) error {
-		err := stream.Send(&mq_pb.BrokerMessage{
-			Data: m,
-		})
-		if err != nil {
-			glog.V(0).Infof("=> subscriber %v: %+v", subscriberId, err)
-		}
-		return err
-	}
-
-	eachLogEntryFn := func(logEntry *filer_pb.LogEntry) error {
-		m := &mq_pb.Message{}
-		if err = proto.Unmarshal(logEntry.Data, m); err != nil {
-			glog.Errorf("unexpected unmarshal mq_pb.Message: %v", err)
-			return err
-		}
-		// fmt.Printf("sending : %d bytes ts %d\n", len(m.Value), logEntry.TsNs)
-		if err = eachMessageFn(m); err != nil {
-			glog.Errorf("sending %d bytes to %s: %s", len(m.Value), subscriberId, err)
-			return err
-		}
-		if m.IsClose {
-			// println("processed EOF")
-			return io.EOF
-		}
-		processedTsNs = logEntry.TsNs
-		messageCount++
-		return nil
-	}
-
-	// fmt.Printf("subscriber %s read %d on disk log %v\n", subscriberId, messageCount, lastReadTime)
-
-	for {
-
-		if err = broker.readPersistedLogBuffer(&tp, lastReadTime, eachLogEntryFn); err != nil {
-			if err != io.EOF {
-				// println("stopping from persisted logs", err.Error())
-				return err
-			}
-		}
-
-		if processedTsNs != 0 {
-			lastReadTime = time.Unix(0, processedTsNs)
-		}
-
-		lastReadTime, _, err = lock.logBuffer.LoopProcessLogData("broker", lastReadTime, 0, func() bool {
-			lock.Mutex.Lock()
-			lock.cond.Wait()
-			lock.Mutex.Unlock()
-			return isConnected
-		}, eachLogEntryFn)
-		if err != nil {
-			if err == log_buffer.ResumeFromDiskError {
-				continue
-			}
-			glog.Errorf("processed to %v: %v", lastReadTime, err)
-			if err != log_buffer.ResumeError {
-				break
-			}
-		}
-	}
-
-	return err
-
-}
-
-func (broker *MessageQueueBroker) readPersistedLogBuffer(tp *TopicPartition, startTime time.Time, eachLogEntryFn func(logEntry *filer_pb.LogEntry) error) (err error) {
-	startTime = startTime.UTC()
-	startDate := fmt.Sprintf("%04d-%02d-%02d", startTime.Year(), startTime.Month(), startTime.Day())
-	startHourMinute := fmt.Sprintf("%02d-%02d", startTime.Hour(), startTime.Minute())
-
-	sizeBuf := make([]byte, 4)
-	startTsNs := startTime.UnixNano()
-
-	topicDir := genTopicDir(tp.Namespace, tp.Topic)
-	partitionSuffix := fmt.Sprintf(".part%02d", tp.Partition)
-
-	return filer_pb.List(broker, topicDir, "", func(dayEntry *filer_pb.Entry, isLast bool) error {
-		dayDir := fmt.Sprintf("%s/%s", topicDir, dayEntry.Name)
-		return filer_pb.List(broker, dayDir, "", func(hourMinuteEntry *filer_pb.Entry, isLast bool) error {
-			if dayEntry.Name == startDate {
-				hourMinute := util.FileNameBase(hourMinuteEntry.Name)
-				if strings.Compare(hourMinute, startHourMinute) < 0 {
-					return nil
-				}
-			}
-			if !strings.HasSuffix(hourMinuteEntry.Name, partitionSuffix) {
-				return nil
-			}
-			// println("partition", tp.Partition, "processing", dayDir, "/", hourMinuteEntry.Name)
-			chunkedFileReader := filer.NewChunkStreamReader(broker, hourMinuteEntry.Chunks)
-			defer chunkedFileReader.Close()
-			if _, err := filer.ReadEachLogEntry(chunkedFileReader, sizeBuf, startTsNs, 0, eachLogEntryFn); err != nil {
-				chunkedFileReader.Close()
-				if err == io.EOF {
-					return err
-				}
-				return fmt.Errorf("reading %s/%s: %v", dayDir, hourMinuteEntry.Name, err)
-			}
-			return nil
-		}, "", false, 24*60)
-	}, startDate, true, 366)
-
-}
diff --git a/weed/mq/broker/broker_server.go b/weed/mq/broker/broker_server.go
index 36f216a48..63e248797 100644
--- a/weed/mq/broker/broker_server.go
+++ b/weed/mq/broker/broker_server.go
@@ -1,15 +1,11 @@
 package broker
 
 import (
-	"context"
 	"github.com/chrislusf/seaweedfs/weed/cluster"
 	"github.com/chrislusf/seaweedfs/weed/pb/mq_pb"
 	"github.com/chrislusf/seaweedfs/weed/wdclient"
-	"time"
-
 	"google.golang.org/grpc"
 
-	"github.com/chrislusf/seaweedfs/weed/glog"
 	"github.com/chrislusf/seaweedfs/weed/pb"
 	"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
 	"github.com/chrislusf/seaweedfs/weed/pb/master_pb"
@@ -33,7 +29,6 @@ type MessageQueueBroker struct {
 	option         *MessageQueueBrokerOption
 	grpcDialOption grpc.DialOption
 	MasterClient   *wdclient.MasterClient
-	topicManager   *TopicManager
 }
 
 func NewMessageBroker(option *MessageQueueBrokerOption, grpcDialOption grpc.DialOption) (mqBroker *MessageQueueBroker, err error) {
@@ -44,72 +39,13 @@ func NewMessageBroker(option *MessageQueueBrokerOption, grpcDialOption grpc.Dial
 		MasterClient:   wdclient.NewMasterClient(grpcDialOption, option.FilerGroup, cluster.BrokerType, pb.NewServerAddress(option.Ip, option.Port, 0), option.DataCenter, option.Rack, option.Masters),
 	}
 
-	mqBroker.topicManager = NewTopicManager(mqBroker)
-
 	mqBroker.checkFilers()
 
-	go mqBroker.keepConnectedToOneFiler()
 	go mqBroker.MasterClient.KeepConnectedToMaster()
 
 	return mqBroker, nil
 }
 
-func (broker *MessageQueueBroker) keepConnectedToOneFiler() {
-
-	for {
-		for _, filer := range broker.option.Filers {
-			broker.withFilerClient(false, filer, func(client filer_pb.SeaweedFilerClient) error {
-				ctx, cancel := context.WithCancel(context.Background())
-				defer cancel()
-				stream, err := client.KeepConnected(ctx)
-				if err != nil {
-					glog.V(0).Infof("%s:%d failed to keep connected to %s: %v", broker.option.Ip, broker.option.Port, filer, err)
-					return err
-				}
-
-				initRequest := &filer_pb.KeepConnectedRequest{
-					Name:     broker.option.Ip,
-					GrpcPort: uint32(broker.option.Port),
-				}
-				for _, tp := range broker.topicManager.ListTopicPartitions() {
-					initRequest.Resources = append(initRequest.Resources, tp.String())
-				}
-				if err := stream.Send(&filer_pb.KeepConnectedRequest{
-					Name:     broker.option.Ip,
-					GrpcPort: uint32(broker.option.Port),
-				}); err != nil {
-					glog.V(0).Infof("broker %s:%d failed to init at %s: %v", broker.option.Ip, broker.option.Port, filer, err)
-					return err
-				}
-
-				// TODO send events of adding/removing topics
-
-				glog.V(0).Infof("conntected with filer: %v", filer)
-				for {
-					if err := stream.Send(&filer_pb.KeepConnectedRequest{
-						Name:     broker.option.Ip,
-						GrpcPort: uint32(broker.option.Port),
-					}); err != nil {
-						glog.V(0).Infof("%s:%d failed to sendto %s: %v", broker.option.Ip, broker.option.Port, filer, err)
-						return err
-					}
-					// println("send heartbeat")
-					if _, err := stream.Recv(); err != nil {
-						glog.V(0).Infof("%s:%d failed to receive from %s: %v", broker.option.Ip, broker.option.Port, filer, err)
-						return err
-					}
-					// println("received reply")
-					time.Sleep(11 * time.Second)
-					// println("woke up")
-				}
-				return nil
-			})
-			time.Sleep(3 * time.Second)
-		}
-	}
-
-}
-
 func (broker *MessageQueueBroker) withFilerClient(streamingMode bool, filer pb.ServerAddress, fn func(filer_pb.SeaweedFilerClient) error) error {
 
 	return pb.WithFilerClient(streamingMode, filer, broker.grpcDialOption, fn)
diff --git a/weed/mq/broker/topic_manager.go b/weed/mq/broker/topic_manager.go
deleted file mode 100644
index 34f063d9a..000000000
--- a/weed/mq/broker/topic_manager.go
+++ /dev/null
@@ -1,124 +0,0 @@
-package broker
-
-import (
-	"fmt"
-	"sync"
-	"time"
-
-	"github.com/chrislusf/seaweedfs/weed/filer"
-	"github.com/chrislusf/seaweedfs/weed/glog"
-	"github.com/chrislusf/seaweedfs/weed/pb/mq_pb"
-	"github.com/chrislusf/seaweedfs/weed/util/log_buffer"
-)
-
-type TopicPartition struct {
-	Namespace string
-	Topic     string
-	Partition int32
-}
-
-const (
-	TopicPartitionFmt = "%s/%s_%02d"
-)
-
-func (tp *TopicPartition) String() string {
-	return fmt.Sprintf(TopicPartitionFmt, tp.Namespace, tp.Topic, tp.Partition)
-}
-
-type TopicControl struct {
-	sync.Mutex
-	cond            *sync.Cond
-	subscriberCount int
-	publisherCount  int
-	logBuffer       *log_buffer.LogBuffer
-}
-
-type TopicManager struct {
-	sync.Mutex
-	topicControls map[TopicPartition]*TopicControl
-	broker        *MessageQueueBroker
-}
-
-func NewTopicManager(messageBroker *MessageQueueBroker) *TopicManager {
-	return &TopicManager{
-		topicControls: make(map[TopicPartition]*TopicControl),
-		broker:        messageBroker,
-	}
-}
-
-func (tm *TopicManager) buildLogBuffer(tl *TopicControl, tp TopicPartition, topicConfig *mq_pb.TopicConfiguration) *log_buffer.LogBuffer {
-
-	flushFn := func(startTime, stopTime time.Time, buf []byte) {
-
-		if topicConfig.IsTransient {
-			// return
-		}
-
-		// fmt.Printf("flushing with topic config %+v\n", topicConfig)
-
-		startTime, stopTime = startTime.UTC(), stopTime.UTC()
-		targetFile := fmt.Sprintf(
-			"%s/%s/%s/%04d-%02d-%02d/%02d-%02d.part%02d",
-			filer.TopicsDir, tp.Namespace, tp.Topic,
-			startTime.Year(), startTime.Month(), startTime.Day(), startTime.Hour(), startTime.Minute(),
-			tp.Partition,
-		)
-
-		if err := tm.broker.appendToFile(targetFile, topicConfig, buf); err != nil {
-			glog.V(0).Infof("log write failed %s: %v", targetFile, err)
-		}
-	}
-	logBuffer := log_buffer.NewLogBuffer("broker", time.Minute, flushFn, func() {
-		tl.cond.Broadcast()
-	})
-
-	return logBuffer
-}
-
-func (tm *TopicManager) RequestLock(partition TopicPartition, topicConfig *mq_pb.TopicConfiguration, isPublisher bool) *TopicControl {
-	tm.Lock()
-	defer tm.Unlock()
-
-	tc, found := tm.topicControls[partition]
-	if !found {
-		tc = &TopicControl{}
-		tc.cond = sync.NewCond(&tc.Mutex)
-		tm.topicControls[partition] = tc
-		tc.logBuffer = tm.buildLogBuffer(tc, partition, topicConfig)
-	}
-	if isPublisher {
-		tc.publisherCount++
-	} else {
-		tc.subscriberCount++
-	}
-	return tc
-}
-
-func (tm *TopicManager) ReleaseLock(partition TopicPartition, isPublisher bool) {
-	tm.Lock()
-	defer tm.Unlock()
-
-	lock, found := tm.topicControls[partition]
-	if !found {
-		return
-	}
-	if isPublisher {
-		lock.publisherCount--
-	} else {
-		lock.subscriberCount--
-	}
-	if lock.subscriberCount <= 0 && lock.publisherCount <= 0 {
-		delete(tm.topicControls, partition)
-		lock.logBuffer.Shutdown()
-	}
-}
-
-func (tm *TopicManager) ListTopicPartitions() (tps []TopicPartition) {
-	tm.Lock()
-	defer tm.Unlock()
-
-	for k := range tm.topicControls {
-		tps = append(tps, k)
-	}
-	return
-}
diff --git a/weed/mq/msgclient/chan_config.go b/weed/mq/msgclient/chan_config.go
deleted file mode 100644
index a75678815..000000000
--- a/weed/mq/msgclient/chan_config.go
+++ /dev/null
@@ -1,5 +0,0 @@
-package msgclient
-
-func (mc *MessagingClient) DeleteChannel(chanName string) error {
-	return mc.DeleteTopic("chan", chanName)
-}
diff --git a/weed/mq/msgclient/chan_pub.go b/weed/mq/msgclient/chan_pub.go
deleted file mode 100644
index f4ffe832a..000000000
--- a/weed/mq/msgclient/chan_pub.go
+++ /dev/null
@@ -1,76 +0,0 @@
-package msgclient
-
-import (
-	"crypto/md5"
-	"hash"
-	"io"
-	"log"
-
-	"google.golang.org/grpc"
-
-	"github.com/chrislusf/seaweedfs/weed/mq/broker"
-	"github.com/chrislusf/seaweedfs/weed/pb/mq_pb"
-)
-
-type PubChannel struct {
-	client         mq_pb.SeaweedMessaging_PublishClient
-	grpcConnection *grpc.ClientConn
-	md5hash        hash.Hash
-}
-
-func (mc *MessagingClient) NewPubChannel(chanName string) (*PubChannel, error) {
-	tp := broker.TopicPartition{
-		Namespace: "chan",
-		Topic:     chanName,
-		Partition: 0,
-	}
-	grpcConnection, err := mc.findBroker(tp)
-	if err != nil {
-		return nil, err
-	}
-	pc, err := setupPublisherClient(grpcConnection, tp)
-	if err != nil {
-		return nil, err
-	}
-	return &PubChannel{
-		client:         pc,
-		grpcConnection: grpcConnection,
-		md5hash:        md5.New(),
-	}, nil
-}
-
-func (pc *PubChannel) Publish(m []byte) error {
-	err := pc.client.Send(&mq_pb.PublishRequest{
-		Data: &mq_pb.Message{
-			Value: m,
-		},
-	})
-	if err == nil {
-		pc.md5hash.Write(m)
-	}
-	return err
-}
-func (pc *PubChannel) Close() error {
-
-	// println("send closing")
-	if err := pc.client.Send(&mq_pb.PublishRequest{
-		Data: &mq_pb.Message{
-			IsClose: true,
-		},
-	}); err != nil {
-		log.Printf("err send close: %v", err)
-	}
-	// println("receive closing")
-	if _, err := pc.client.Recv(); err != nil && err != io.EOF {
-		log.Printf("err receive close: %v", err)
-	}
-	// println("close connection")
-	if err := pc.grpcConnection.Close(); err != nil {
-		log.Printf("err connection close: %v", err)
-	}
-	return nil
-}
-
-func (pc *PubChannel) Md5() []byte {
-	return pc.md5hash.Sum(nil)
-}
diff --git a/weed/mq/msgclient/chan_sub.go b/weed/mq/msgclient/chan_sub.go
deleted file mode 100644
index 859b482ef..000000000
--- a/weed/mq/msgclient/chan_sub.go
+++ /dev/null
@@ -1,85 +0,0 @@
-package msgclient
-
-import (
-	"context"
-	"crypto/md5"
-	"hash"
-	"io"
-	"log"
-	"time"
-
-	"github.com/chrislusf/seaweedfs/weed/mq/broker"
-	"github.com/chrislusf/seaweedfs/weed/pb/mq_pb"
-)
-
-type SubChannel struct {
-	ch      chan []byte
-	stream  mq_pb.SeaweedMessaging_SubscribeClient
-	md5hash hash.Hash
-	cancel  context.CancelFunc
-}
-
-func (mc *MessagingClient) NewSubChannel(subscriberId, chanName string) (*SubChannel, error) {
-	tp := broker.TopicPartition{
-		Namespace: "chan",
-		Topic:     chanName,
-		Partition: 0,
-	}
-	grpcConnection, err := mc.findBroker(tp)
-	if err != nil {
-		return nil, err
-	}
-	ctx, cancel := context.WithCancel(context.Background())
-	sc, err := setupSubscriberClient(ctx, grpcConnection, tp, subscriberId, time.Unix(0, 0))
-	if err != nil {
-		return nil, err
-	}
-
-	t := &SubChannel{
-		ch:      make(chan []byte),
-		stream:  sc,
-		md5hash: md5.New(),
-		cancel:  cancel,
-	}
-
-	go func() {
-		for {
-			resp, subErr := t.stream.Recv()
-			if subErr == io.EOF {
-				return
-			}
-			if subErr != nil {
-				log.Printf("fail to receive from netchan %s: %v", chanName, subErr)
-				return
-			}
-			if resp.Data == nil {
-				// this could be heartbeat from broker
-				continue
-			}
-			if resp.Data.IsClose {
-				t.stream.Send(&mq_pb.SubscriberMessage{
-					IsClose: true,
-				})
-				close(t.ch)
-				cancel()
-				return
-			}
-			t.ch <- resp.Data.Value
-			t.md5hash.Write(resp.Data.Value)
-		}
-	}()
-
-	return t, nil
-}
-
-func (sc *SubChannel) Channel() chan []byte {
-	return sc.ch
-}
-
-func (sc *SubChannel) Md5() []byte {
-	return sc.md5hash.Sum(nil)
-}
-
-func (sc *SubChannel) Cancel() {
-	sc.cancel()
-}
diff --git a/weed/mq/msgclient/client.go b/weed/mq/msgclient/client.go
deleted file mode 100644
index cc64f1acb..000000000
--- a/weed/mq/msgclient/client.go
+++ /dev/null
@@ -1,55 +0,0 @@
-package msgclient
-
-import (
-	"context"
-	"fmt"
-	"log"
-
-	"google.golang.org/grpc"
-
-	"github.com/chrislusf/seaweedfs/weed/mq/broker"
-	"github.com/chrislusf/seaweedfs/weed/pb"
-	"github.com/chrislusf/seaweedfs/weed/pb/mq_pb"
-	"github.com/chrislusf/seaweedfs/weed/security"
-	"github.com/chrislusf/seaweedfs/weed/util"
-)
-
-type MessagingClient struct {
-	bootstrapBrokers []string
-	grpcConnections  map[broker.TopicPartition]*grpc.ClientConn
-	grpcDialOption   grpc.DialOption
-}
-
-func NewMessagingClient(bootstrapBrokers ...string) *MessagingClient {
-	return &MessagingClient{
-		bootstrapBrokers: bootstrapBrokers,
-		grpcConnections:  make(map[broker.TopicPartition]*grpc.ClientConn),
-		grpcDialOption:   security.LoadClientTLS(util.GetViper(), "grpc.msg_client"),
-	}
-}
-
-func (mc *MessagingClient) findBroker(tp broker.TopicPartition) (*grpc.ClientConn, error) {
-
-	for _, broker := range mc.bootstrapBrokers {
-		grpcConnection, err := pb.GrpcDial(context.Background(), broker, mc.grpcDialOption)
-		if err != nil {
-			log.Printf("dial broker %s: %v", broker, err)
-			continue
-		}
-		defer grpcConnection.Close()
-
-		resp, err := mq_pb.NewSeaweedMessagingClient(grpcConnection).FindBroker(context.Background(),
-			&mq_pb.FindBrokerRequest{
-				Namespace: tp.Namespace,
-				Topic:     tp.Topic,
-				Parition:  tp.Partition,
-			})
-		if err != nil {
-			return nil, err
-		}
-
-		targetBroker := resp.Broker
-		return pb.GrpcDial(context.Background(), targetBroker, mc.grpcDialOption)
-	}
-	return nil, fmt.Errorf("no broker found for %+v", tp)
-}
diff --git a/weed/mq/msgclient/config.go b/weed/mq/msgclient/config.go
deleted file mode 100644
index 263ee856e..000000000
--- a/weed/mq/msgclient/config.go
+++ /dev/null
@@ -1,63 +0,0 @@
-package msgclient
-
-import (
-	"context"
-	"log"
-
-	"github.com/chrislusf/seaweedfs/weed/mq/broker"
-	"github.com/chrislusf/seaweedfs/weed/pb"
-	"github.com/chrislusf/seaweedfs/weed/pb/mq_pb"
-)
-
-func (mc *MessagingClient) configureTopic(tp broker.TopicPartition) error {
-
-	return mc.withAnyBroker(func(client mq_pb.SeaweedMessagingClient) error {
-		_, err := client.ConfigureTopic(context.Background(),
-			&mq_pb.ConfigureTopicRequest{
-				Namespace: tp.Namespace,
-				Topic:     tp.Topic,
-				Configuration: &mq_pb.TopicConfiguration{
-					PartitionCount: 0,
-					Collection:     "",
-					Replication:    "",
-					IsTransient:    false,
-					Partitoning:    0,
-				},
-			})
-		return err
-	})
-
-}
-
-func (mc *MessagingClient) DeleteTopic(namespace, topic string) error {
-
-	return mc.withAnyBroker(func(client mq_pb.SeaweedMessagingClient) error {
-		_, err := client.DeleteTopic(context.Background(),
-			&mq_pb.DeleteTopicRequest{
-				Namespace: namespace,
-				Topic:     topic,
-			})
-		return err
-	})
-}
-
-func (mc *MessagingClient) withAnyBroker(fn func(client mq_pb.SeaweedMessagingClient) error) error {
-
-	var lastErr error
-	for _, broker := range mc.bootstrapBrokers {
-		grpcConnection, err := pb.GrpcDial(context.Background(), broker, mc.grpcDialOption)
-		if err != nil {
-			log.Printf("dial broker %s: %v", broker, err)
-			continue
-		}
-		defer grpcConnection.Close()
-
-		err = fn(mq_pb.NewSeaweedMessagingClient(grpcConnection))
-		if err == nil {
-			return nil
-		}
-		lastErr = err
-	}
-
-	return lastErr
-}
diff --git a/weed/mq/msgclient/publisher.go b/weed/mq/msgclient/publisher.go
deleted file mode 100644
index 823791d10..000000000
--- a/weed/mq/msgclient/publisher.go
+++ /dev/null
@@ -1,118 +0,0 @@
-package msgclient
-
-import (
-	"context"
-
-	"github.com/OneOfOne/xxhash"
-	"google.golang.org/grpc"
-
-	"github.com/chrislusf/seaweedfs/weed/mq/broker"
-	"github.com/chrislusf/seaweedfs/weed/pb/mq_pb"
-)
-
-type Publisher struct {
-	publishClients     []mq_pb.SeaweedMessaging_PublishClient
-	topicConfiguration *mq_pb.TopicConfiguration
-	messageCount       uint64
-	publisherId        string
-}
-
-func (mc *MessagingClient) NewPublisher(publisherId, namespace, topic string) (*Publisher, error) {
-	// read topic configuration
-	topicConfiguration := &mq_pb.TopicConfiguration{
-		PartitionCount: 4,
-	}
-	publishClients := make([]mq_pb.SeaweedMessaging_PublishClient, topicConfiguration.PartitionCount)
-	for i := 0; i < int(topicConfiguration.PartitionCount); i++ {
-		tp := broker.TopicPartition{
-			Namespace: namespace,
-			Topic:     topic,
-			Partition: int32(i),
-		}
-		grpcClientConn, err := mc.findBroker(tp)
-		if err != nil {
-			return nil, err
-		}
-		client, err := setupPublisherClient(grpcClientConn, tp)
-		if err != nil {
-			return nil, err
-		}
-		publishClients[i] = client
-	}
-	return &Publisher{
-		publishClients:     publishClients,
-		topicConfiguration: topicConfiguration,
-	}, nil
-}
-
-func setupPublisherClient(grpcConnection *grpc.ClientConn, tp broker.TopicPartition) (mq_pb.SeaweedMessaging_PublishClient, error) {
-
-	stream, err := mq_pb.NewSeaweedMessagingClient(grpcConnection).Publish(context.Background())
-	if err != nil {
-		return nil, err
-	}
-
-	// send init message
-	err = stream.Send(&mq_pb.PublishRequest{
-		Init: &mq_pb.PublishRequest_InitMessage{
-			Namespace: tp.Namespace,
-			Topic:     tp.Topic,
-			Partition: tp.Partition,
-		},
-	})
-	if err != nil {
-		return nil, err
-	}
-
-	// process init response
-	initResponse, err := stream.Recv()
-	if err != nil {
-		return nil, err
-	}
-	if initResponse.Redirect != nil {
-		// TODO follow redirection
-	}
-	if initResponse.Config != nil {
-	}
-
-	// setup looks for control messages
-	doneChan := make(chan error, 1)
-	go func() {
-		for {
-			in, err := stream.Recv()
-			if err != nil {
-				doneChan <- err
-				return
-			}
-			if in.Redirect != nil {
-			}
-			if in.Config != nil {
-			}
-		}
-	}()
-
-	return stream, nil
-
-}
-
-func (p *Publisher) Publish(m *mq_pb.Message) error {
-	hashValue := p.messageCount
-	p.messageCount++
-	if p.topicConfiguration.Partitoning == mq_pb.TopicConfiguration_NonNullKeyHash {
-		if m.Key != nil {
-			hashValue = xxhash.Checksum64(m.Key)
-		}
-	} else if p.topicConfiguration.Partitoning == mq_pb.TopicConfiguration_KeyHash {
-		hashValue = xxhash.Checksum64(m.Key)
-	} else {
-		// round robin
-	}
-
-	idx := int(hashValue) % len(p.publishClients)
-	if idx < 0 {
-		idx += len(p.publishClients)
-	}
-	return p.publishClients[idx].Send(&mq_pb.PublishRequest{
-		Data: m,
-	})
-}
diff --git a/weed/mq/msgclient/subscriber.go b/weed/mq/msgclient/subscriber.go
deleted file mode 100644
index f3da40fb3..000000000
--- a/weed/mq/msgclient/subscriber.go
+++ /dev/null
@@ -1,120 +0,0 @@
-package msgclient
-
-import (
-	"context"
-	"io"
-	"sync"
-	"time"
-
-	"github.com/chrislusf/seaweedfs/weed/mq/broker"
-	"github.com/chrislusf/seaweedfs/weed/pb/mq_pb"
-	"google.golang.org/grpc"
-)
-
-type Subscriber struct {
-	subscriberClients []mq_pb.SeaweedMessaging_SubscribeClient
-	subscriberCancels []context.CancelFunc
-	subscriberId      string
-}
-
-func (mc *MessagingClient) NewSubscriber(subscriberId, namespace, topic string, partitionId int, startTime time.Time) (*Subscriber, error) {
-	// read topic configuration
-	topicConfiguration := &mq_pb.TopicConfiguration{
-		PartitionCount: 4,
-	}
-	subscriberClients := make([]mq_pb.SeaweedMessaging_SubscribeClient, topicConfiguration.PartitionCount)
-	subscriberCancels := make([]context.CancelFunc, topicConfiguration.PartitionCount)
-
-	for i := 0; i < int(topicConfiguration.PartitionCount); i++ {
-		if partitionId >= 0 && i != partitionId {
-			continue
-		}
-		tp := broker.TopicPartition{
-			Namespace: namespace,
-			Topic:     topic,
-			Partition: int32(i),
-		}
-		grpcClientConn, err := mc.findBroker(tp)
-		if err != nil {
-			return nil, err
-		}
-		ctx, cancel := context.WithCancel(context.Background())
-		client, err := setupSubscriberClient(ctx, grpcClientConn, tp, subscriberId, startTime)
-		if err != nil {
-			return nil, err
-		}
-		subscriberClients[i] = client
-		subscriberCancels[i] = cancel
-	}
-
-	return &Subscriber{
-		subscriberClients: subscriberClients,
-		subscriberCancels: subscriberCancels,
-		subscriberId:      subscriberId,
-	}, nil
-}
-
-func setupSubscriberClient(ctx context.Context, grpcConnection *grpc.ClientConn, tp broker.TopicPartition, subscriberId string, startTime time.Time) (stream mq_pb.SeaweedMessaging_SubscribeClient, err error) {
-	stream, err = mq_pb.NewSeaweedMessagingClient(grpcConnection).Subscribe(ctx)
-	if err != nil {
-		return
-	}
-
-	// send init message
-	err = stream.Send(&mq_pb.SubscriberMessage{
-		Init: &mq_pb.SubscriberMessage_InitMessage{
-			Namespace:     tp.Namespace,
-			Topic:         tp.Topic,
-			Partition:     tp.Partition,
-			StartPosition: mq_pb.SubscriberMessage_InitMessage_TIMESTAMP,
-			TimestampNs:   startTime.UnixNano(),
-			SubscriberId:  subscriberId,
-		},
-	})
-	if err != nil {
-		return
-	}
-
-	return stream, nil
-}
-
-func doSubscribe(subscriberClient mq_pb.SeaweedMessaging_SubscribeClient, processFn func(m *mq_pb.Message)) error {
-	for {
-		resp, listenErr := subscriberClient.Recv()
-		if listenErr == io.EOF {
-			return nil
-		}
-		if listenErr != nil {
-			println(listenErr.Error())
-			return listenErr
-		}
-		if resp.Data == nil {
-			// this could be heartbeat from broker
-			continue
-		}
-		processFn(resp.Data)
-	}
-}
-
-// Subscribe starts goroutines to process the messages
-func (s *Subscriber) Subscribe(processFn func(m *mq_pb.Message)) {
-	var wg sync.WaitGroup
-	for i := 0; i < len(s.subscriberClients); i++ {
-		if s.subscriberClients[i] != nil {
-			wg.Add(1)
-			go func(subscriberClient mq_pb.SeaweedMessaging_SubscribeClient) {
-				defer wg.Done()
-				doSubscribe(subscriberClient, processFn)
-			}(s.subscriberClients[i])
-		}
-	}
-	wg.Wait()
-}
-
-func (s *Subscriber) Shutdown() {
-	for i := 0; i < len(s.subscriberClients); i++ {
-		if s.subscriberCancels[i] != nil {
-			s.subscriberCancels[i]()
-		}
-	}
-}
diff --git a/weed/mq/topic.go b/weed/mq/topic.go
new file mode 100644
index 000000000..fc1923af1
--- /dev/null
+++ b/weed/mq/topic.go
@@ -0,0 +1,23 @@
+package mq
+
+import "time"
+
+type Namespace string
+
+type Topic struct {
+	namespace Namespace
+	name      string
+}
+
+type Partition struct {
+	rangeStart int
+	rangeStop  int // exclusive
+	ringSize   int
+}
+
+type Segment struct {
+	topic        Topic
+	id           int32
+	partition    Partition
+	lastModified time.Time
+}
diff --git a/weed/pb/filer.proto b/weed/pb/filer.proto
index bd0932cb8..bde42a80c 100644
--- a/weed/pb/filer.proto
+++ b/weed/pb/filer.proto
@@ -60,12 +60,6 @@ service SeaweedFiler {
     rpc SubscribeLocalMetadata (SubscribeMetadataRequest) returns (stream SubscribeMetadataResponse) {
     }
 
-    rpc KeepConnected (stream KeepConnectedRequest) returns (stream KeepConnectedResponse) {
-    }
-
-    rpc LocateBroker (LocateBrokerRequest) returns (LocateBrokerResponse) {
-    }
-
     rpc KvGet (KvGetRequest) returns (KvGetResponse) {
     }
 
diff --git a/weed/pb/filer_pb/filer.pb.go b/weed/pb/filer_pb/filer.pb.go
index 4ac560855..c42436921 100644
--- a/weed/pb/filer_pb/filer.pb.go
+++ b/weed/pb/filer_pb/filer.pb.go
@@ -4253,7 +4253,7 @@ var file_filer_proto_rawDesc = []byte{
 	0x6c, 0x43, 0x6c, 0x75, 0x73, 0x74, 0x65, 0x72, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65,
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 	0x0f, 0x2e, 0x66, 0x69, 0x6c, 0x65, 0x72, 0x5f, 0x70, 0x62, 0x2e, 0x45, 0x6e, 0x74, 0x72, 0x79,
-	0x52, 0x05, 0x65, 0x6e, 0x74, 0x72, 0x79, 0x32, 0x82, 0x0f, 0x0a, 0x0c, 0x53, 0x65, 0x61, 0x77,
+	0x52, 0x05, 0x65, 0x6e, 0x74, 0x72, 0x79, 0x32, 0xd9, 0x0d, 0x0a, 0x0c, 0x53, 0x65, 0x61, 0x77,
 	0x65, 0x65, 0x64, 0x46, 0x69, 0x6c, 0x65, 0x72, 0x12, 0x67, 0x0a, 0x14, 0x4c, 0x6f, 0x6f, 0x6b,
 	0x75, 0x70, 0x44, 0x69, 0x72, 0x65, 0x63, 0x74, 0x6f, 0x72, 0x79, 0x45, 0x6e, 0x74, 0x72, 0x79,
 	0x12, 0x25, 0x2e, 0x66, 0x69, 0x6c, 0x65, 0x72, 0x5f, 0x70, 0x62, 0x2e, 0x4c, 0x6f, 0x6f, 0x6b,
@@ -4347,39 +4347,28 @@ var file_filer_proto_rawDesc = []byte{
 	0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x23, 0x2e, 0x66, 0x69, 0x6c, 0x65, 0x72, 0x5f,
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 }
 
 var (
@@ -4499,35 +4488,31 @@ var file_filer_proto_depIdxs = []int32{
 	39, // 39: filer_pb.SeaweedFiler.GetFilerConfiguration:input_type -> filer_pb.GetFilerConfigurationRequest
 	41, // 40: filer_pb.SeaweedFiler.SubscribeMetadata:input_type -> filer_pb.SubscribeMetadataRequest
 	41, // 41: filer_pb.SeaweedFiler.SubscribeLocalMetadata:input_type -> filer_pb.SubscribeMetadataRequest
-	44, // 42: filer_pb.SeaweedFiler.KeepConnected:input_type -> filer_pb.KeepConnectedRequest
-	46, // 43: filer_pb.SeaweedFiler.LocateBroker:input_type -> filer_pb.LocateBrokerRequest
-	48, // 44: filer_pb.SeaweedFiler.KvGet:input_type -> filer_pb.KvGetRequest
-	50, // 45: filer_pb.SeaweedFiler.KvPut:input_type -> filer_pb.KvPutRequest
-	53, // 46: filer_pb.SeaweedFiler.CacheRemoteObjectToLocalCluster:input_type -> filer_pb.CacheRemoteObjectToLocalClusterRequest
-	1,  // 47: filer_pb.SeaweedFiler.LookupDirectoryEntry:output_type -> filer_pb.LookupDirectoryEntryResponse
-	3,  // 48: filer_pb.SeaweedFiler.ListEntries:output_type -> filer_pb.ListEntriesResponse
-	13, // 49: filer_pb.SeaweedFiler.CreateEntry:output_type -> filer_pb.CreateEntryResponse
-	15, // 50: filer_pb.SeaweedFiler.UpdateEntry:output_type -> filer_pb.UpdateEntryResponse
-	17, // 51: filer_pb.SeaweedFiler.AppendToEntry:output_type -> filer_pb.AppendToEntryResponse
-	19, // 52: filer_pb.SeaweedFiler.DeleteEntry:output_type -> filer_pb.DeleteEntryResponse
-	21, // 53: filer_pb.SeaweedFiler.AtomicRenameEntry:output_type -> filer_pb.AtomicRenameEntryResponse
-	23, // 54: filer_pb.SeaweedFiler.StreamRenameEntry:output_type -> filer_pb.StreamRenameEntryResponse
-	25, // 55: filer_pb.SeaweedFiler.AssignVolume:output_type -> filer_pb.AssignVolumeResponse
-	29, // 56: filer_pb.SeaweedFiler.LookupVolume:output_type -> filer_pb.LookupVolumeResponse
-	32, // 57: filer_pb.SeaweedFiler.CollectionList:output_type -> filer_pb.CollectionListResponse
-	34, // 58: filer_pb.SeaweedFiler.DeleteCollection:output_type -> filer_pb.DeleteCollectionResponse
-	36, // 59: filer_pb.SeaweedFiler.Statistics:output_type -> filer_pb.StatisticsResponse
-	38, // 60: filer_pb.SeaweedFiler.Ping:output_type -> filer_pb.PingResponse
-	40, // 61: filer_pb.SeaweedFiler.GetFilerConfiguration:output_type -> filer_pb.GetFilerConfigurationResponse
-	42, // 62: filer_pb.SeaweedFiler.SubscribeMetadata:output_type -> filer_pb.SubscribeMetadataResponse
-	42, // 63: filer_pb.SeaweedFiler.SubscribeLocalMetadata:output_type -> filer_pb.SubscribeMetadataResponse
-	45, // 64: filer_pb.SeaweedFiler.KeepConnected:output_type -> filer_pb.KeepConnectedResponse
-	47, // 65: filer_pb.SeaweedFiler.LocateBroker:output_type -> filer_pb.LocateBrokerResponse
-	49, // 66: filer_pb.SeaweedFiler.KvGet:output_type -> filer_pb.KvGetResponse
-	51, // 67: filer_pb.SeaweedFiler.KvPut:output_type -> filer_pb.KvPutResponse
-	54, // 68: filer_pb.SeaweedFiler.CacheRemoteObjectToLocalCluster:output_type -> filer_pb.CacheRemoteObjectToLocalClusterResponse
-	47, // [47:69] is the sub-list for method output_type
-	25, // [25:47] is the sub-list for method input_type
+	48, // 42: filer_pb.SeaweedFiler.KvGet:input_type -> filer_pb.KvGetRequest
+	50, // 43: filer_pb.SeaweedFiler.KvPut:input_type -> filer_pb.KvPutRequest
+	53, // 44: filer_pb.SeaweedFiler.CacheRemoteObjectToLocalCluster:input_type -> filer_pb.CacheRemoteObjectToLocalClusterRequest
+	1,  // 45: filer_pb.SeaweedFiler.LookupDirectoryEntry:output_type -> filer_pb.LookupDirectoryEntryResponse
+	3,  // 46: filer_pb.SeaweedFiler.ListEntries:output_type -> filer_pb.ListEntriesResponse
+	13, // 47: filer_pb.SeaweedFiler.CreateEntry:output_type -> filer_pb.CreateEntryResponse
+	15, // 48: filer_pb.SeaweedFiler.UpdateEntry:output_type -> filer_pb.UpdateEntryResponse
+	17, // 49: filer_pb.SeaweedFiler.AppendToEntry:output_type -> filer_pb.AppendToEntryResponse
+	19, // 50: filer_pb.SeaweedFiler.DeleteEntry:output_type -> filer_pb.DeleteEntryResponse
+	21, // 51: filer_pb.SeaweedFiler.AtomicRenameEntry:output_type -> filer_pb.AtomicRenameEntryResponse
+	23, // 52: filer_pb.SeaweedFiler.StreamRenameEntry:output_type -> filer_pb.StreamRenameEntryResponse
+	25, // 53: filer_pb.SeaweedFiler.AssignVolume:output_type -> filer_pb.AssignVolumeResponse
+	29, // 54: filer_pb.SeaweedFiler.LookupVolume:output_type -> filer_pb.LookupVolumeResponse
+	32, // 55: filer_pb.SeaweedFiler.CollectionList:output_type -> filer_pb.CollectionListResponse
+	34, // 56: filer_pb.SeaweedFiler.DeleteCollection:output_type -> filer_pb.DeleteCollectionResponse
+	36, // 57: filer_pb.SeaweedFiler.Statistics:output_type -> filer_pb.StatisticsResponse
+	38, // 58: filer_pb.SeaweedFiler.Ping:output_type -> filer_pb.PingResponse
+	40, // 59: filer_pb.SeaweedFiler.GetFilerConfiguration:output_type -> filer_pb.GetFilerConfigurationResponse
+	42, // 60: filer_pb.SeaweedFiler.SubscribeMetadata:output_type -> filer_pb.SubscribeMetadataResponse
+	42, // 61: filer_pb.SeaweedFiler.SubscribeLocalMetadata:output_type -> filer_pb.SubscribeMetadataResponse
+	49, // 62: filer_pb.SeaweedFiler.KvGet:output_type -> filer_pb.KvGetResponse
+	51, // 63: filer_pb.SeaweedFiler.KvPut:output_type -> filer_pb.KvPutResponse
+	54, // 64: filer_pb.SeaweedFiler.CacheRemoteObjectToLocalCluster:output_type -> filer_pb.CacheRemoteObjectToLocalClusterResponse
+	45, // [45:65] is the sub-list for method output_type
+	25, // [25:45] is the sub-list for method input_type
 	25, // [25:25] is the sub-list for extension type_name
 	25, // [25:25] is the sub-list for extension extendee
 	0,  // [0:25] is the sub-list for field type_name
diff --git a/weed/pb/filer_pb/filer_grpc.pb.go b/weed/pb/filer_pb/filer_grpc.pb.go
index 4a5f47d71..270e13e6f 100644
--- a/weed/pb/filer_pb/filer_grpc.pb.go
+++ b/weed/pb/filer_pb/filer_grpc.pb.go
@@ -35,8 +35,6 @@ type SeaweedFilerClient interface {
 	GetFilerConfiguration(ctx context.Context, in *GetFilerConfigurationRequest, opts ...grpc.CallOption) (*GetFilerConfigurationResponse, error)
 	SubscribeMetadata(ctx context.Context, in *SubscribeMetadataRequest, opts ...grpc.CallOption) (SeaweedFiler_SubscribeMetadataClient, error)
 	SubscribeLocalMetadata(ctx context.Context, in *SubscribeMetadataRequest, opts ...grpc.CallOption) (SeaweedFiler_SubscribeLocalMetadataClient, error)
-	KeepConnected(ctx context.Context, opts ...grpc.CallOption) (SeaweedFiler_KeepConnectedClient, error)
-	LocateBroker(ctx context.Context, in *LocateBrokerRequest, opts ...grpc.CallOption) (*LocateBrokerResponse, error)
 	KvGet(ctx context.Context, in *KvGetRequest, opts ...grpc.CallOption) (*KvGetResponse, error)
 	KvPut(ctx context.Context, in *KvPutRequest, opts ...grpc.CallOption) (*KvPutResponse, error)
 	CacheRemoteObjectToLocalCluster(ctx context.Context, in *CacheRemoteObjectToLocalClusterRequest, opts ...grpc.CallOption) (*CacheRemoteObjectToLocalClusterResponse, error)
@@ -295,46 +293,6 @@ func (x *seaweedFilerSubscribeLocalMetadataClient) Recv() (*SubscribeMetadataRes
 	return m, nil
 }
 
-func (c *seaweedFilerClient) KeepConnected(ctx context.Context, opts ...grpc.CallOption) (SeaweedFiler_KeepConnectedClient, error) {
-	stream, err := c.cc.NewStream(ctx, &SeaweedFiler_ServiceDesc.Streams[4], "/filer_pb.SeaweedFiler/KeepConnected", opts...)
-	if err != nil {
-		return nil, err
-	}
-	x := &seaweedFilerKeepConnectedClient{stream}
-	return x, nil
-}
-
-type SeaweedFiler_KeepConnectedClient interface {
-	Send(*KeepConnectedRequest) error
-	Recv() (*KeepConnectedResponse, error)
-	grpc.ClientStream
-}
-
-type seaweedFilerKeepConnectedClient struct {
-	grpc.ClientStream
-}
-
-func (x *seaweedFilerKeepConnectedClient) Send(m *KeepConnectedRequest) error {
-	return x.ClientStream.SendMsg(m)
-}
-
-func (x *seaweedFilerKeepConnectedClient) Recv() (*KeepConnectedResponse, error) {
-	m := new(KeepConnectedResponse)
-	if err := x.ClientStream.RecvMsg(m); err != nil {
-		return nil, err
-	}
-	return m, nil
-}
-
-func (c *seaweedFilerClient) LocateBroker(ctx context.Context, in *LocateBrokerRequest, opts ...grpc.CallOption) (*LocateBrokerResponse, error) {
-	out := new(LocateBrokerResponse)
-	err := c.cc.Invoke(ctx, "/filer_pb.SeaweedFiler/LocateBroker", in, out, opts...)
-	if err != nil {
-		return nil, err
-	}
-	return out, nil
-}
-
 func (c *seaweedFilerClient) KvGet(ctx context.Context, in *KvGetRequest, opts ...grpc.CallOption) (*KvGetResponse, error) {
 	out := new(KvGetResponse)
 	err := c.cc.Invoke(ctx, "/filer_pb.SeaweedFiler/KvGet", in, out, opts...)
@@ -383,8 +341,6 @@ type SeaweedFilerServer interface {
 	GetFilerConfiguration(context.Context, *GetFilerConfigurationRequest) (*GetFilerConfigurationResponse, error)
 	SubscribeMetadata(*SubscribeMetadataRequest, SeaweedFiler_SubscribeMetadataServer) error
 	SubscribeLocalMetadata(*SubscribeMetadataRequest, SeaweedFiler_SubscribeLocalMetadataServer) error
-	KeepConnected(SeaweedFiler_KeepConnectedServer) error
-	LocateBroker(context.Context, *LocateBrokerRequest) (*LocateBrokerResponse, error)
 	KvGet(context.Context, *KvGetRequest) (*KvGetResponse, error)
 	KvPut(context.Context, *KvPutRequest) (*KvPutResponse, error)
 	CacheRemoteObjectToLocalCluster(context.Context, *CacheRemoteObjectToLocalClusterRequest) (*CacheRemoteObjectToLocalClusterResponse, error)
@@ -446,12 +402,6 @@ func (UnimplementedSeaweedFilerServer) SubscribeMetadata(*SubscribeMetadataReque
 func (UnimplementedSeaweedFilerServer) SubscribeLocalMetadata(*SubscribeMetadataRequest, SeaweedFiler_SubscribeLocalMetadataServer) error {
 	return status.Errorf(codes.Unimplemented, "method SubscribeLocalMetadata not implemented")
 }
-func (UnimplementedSeaweedFilerServer) KeepConnected(SeaweedFiler_KeepConnectedServer) error {
-	return status.Errorf(codes.Unimplemented, "method KeepConnected not implemented")
-}
-func (UnimplementedSeaweedFilerServer) LocateBroker(context.Context, *LocateBrokerRequest) (*LocateBrokerResponse, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method LocateBroker not implemented")
-}
 func (UnimplementedSeaweedFilerServer) KvGet(context.Context, *KvGetRequest) (*KvGetResponse, error) {
 	return nil, status.Errorf(codes.Unimplemented, "method KvGet not implemented")
 }
@@ -792,50 +742,6 @@ func (x *seaweedFilerSubscribeLocalMetadataServer) Send(m *SubscribeMetadataResp
 	return x.ServerStream.SendMsg(m)
 }
 
-func _SeaweedFiler_KeepConnected_Handler(srv interface{}, stream grpc.ServerStream) error {
-	return srv.(SeaweedFilerServer).KeepConnected(&seaweedFilerKeepConnectedServer{stream})
-}
-
-type SeaweedFiler_KeepConnectedServer interface {
-	Send(*KeepConnectedResponse) error
-	Recv() (*KeepConnectedRequest, error)
-	grpc.ServerStream
-}
-
-type seaweedFilerKeepConnectedServer struct {
-	grpc.ServerStream
-}
-
-func (x *seaweedFilerKeepConnectedServer) Send(m *KeepConnectedResponse) error {
-	return x.ServerStream.SendMsg(m)
-}
-
-func (x *seaweedFilerKeepConnectedServer) Recv() (*KeepConnectedRequest, error) {
-	m := new(KeepConnectedRequest)
-	if err := x.ServerStream.RecvMsg(m); err != nil {
-		return nil, err
-	}
-	return m, nil
-}
-
-func _SeaweedFiler_LocateBroker_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
-	in := new(LocateBrokerRequest)
-	if err := dec(in); err != nil {
-		return nil, err
-	}
-	if interceptor == nil {
-		return srv.(SeaweedFilerServer).LocateBroker(ctx, in)
-	}
-	info := &grpc.UnaryServerInfo{
-		Server:     srv,
-		FullMethod: "/filer_pb.SeaweedFiler/LocateBroker",
-	}
-	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
-		return srv.(SeaweedFilerServer).LocateBroker(ctx, req.(*LocateBrokerRequest))
-	}
-	return interceptor(ctx, in, info, handler)
-}
-
 func _SeaweedFiler_KvGet_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
 	in := new(KvGetRequest)
 	if err := dec(in); err != nil {
@@ -949,10 +855,6 @@ var SeaweedFiler_ServiceDesc = grpc.ServiceDesc{
 			MethodName: "GetFilerConfiguration",
 			Handler:    _SeaweedFiler_GetFilerConfiguration_Handler,
 		},
-		{
-			MethodName: "LocateBroker",
-			Handler:    _SeaweedFiler_LocateBroker_Handler,
-		},
 		{
 			MethodName: "KvGet",
 			Handler:    _SeaweedFiler_KvGet_Handler,
@@ -987,12 +889,6 @@ var SeaweedFiler_ServiceDesc = grpc.ServiceDesc{
 			Handler:       _SeaweedFiler_SubscribeLocalMetadata_Handler,
 			ServerStreams: true,
 		},
-		{
-			StreamName:    "KeepConnected",
-			Handler:       _SeaweedFiler_KeepConnected_Handler,
-			ServerStreams: true,
-			ClientStreams: true,
-		},
 	},
 	Metadata: "filer.proto",
 }
diff --git a/weed/pb/mq.proto b/weed/pb/mq.proto
index abe538485..44291c173 100644
--- a/weed/pb/mq.proto
+++ b/weed/pb/mq.proto
@@ -10,21 +10,6 @@ option java_outer_classname = "MessagQueueProto";
 
 service SeaweedMessaging {
 
-    rpc Subscribe (stream SubscriberMessage) returns (stream BrokerMessage) {
-    }
-
-    rpc Publish (stream PublishRequest) returns (stream PublishResponse) {
-    }
-
-    rpc DeleteTopic (DeleteTopicRequest) returns (DeleteTopicResponse) {
-    }
-
-    rpc ConfigureTopic (ConfigureTopicRequest) returns (ConfigureTopicResponse) {
-    }
-
-    rpc GetTopicConfiguration (GetTopicConfigurationRequest) returns (GetTopicConfigurationResponse) {
-    }
-
     rpc FindBroker (FindBrokerRequest) returns (FindBrokerResponse) {
     }
 
@@ -32,85 +17,6 @@ service SeaweedMessaging {
 
 //////////////////////////////////////////////////
 
-message SubscriberMessage {
-    message InitMessage {
-        string namespace = 1;
-        string topic = 2;
-        int32 partition = 3;
-        enum StartPosition {
-            LATEST = 0; // Start at the newest message
-            EARLIEST = 1; // Start at the oldest message
-            TIMESTAMP = 2; // Start after a specified timestamp, exclusive
-        }
-        StartPosition startPosition = 4; // Where to begin consuming from
-        int64 timestampNs = 5; // timestamp in nano seconds
-        string subscriber_id = 6; // uniquely identify a subscriber to track consumption
-    }
-    InitMessage init = 1;
-    message AckMessage {
-        int64 message_id = 1;
-    }
-    AckMessage ack = 2;
-    bool is_close = 3;
-}
-
-message Message {
-    int64 event_time_ns = 1 [jstype = JS_STRING];
-    bytes key = 2; // Message key
-    bytes value = 3; // Message payload
-    map<string, bytes> headers = 4; // Message headers
-    bool is_close = 5;
-}
-
-message BrokerMessage {
-    Message data = 1;
-}
-
-message PublishRequest {
-    message InitMessage {
-        string namespace = 1; // only needed on the initial request
-        string topic = 2; // only needed on the initial request
-        int32 partition = 3;
-    }
-    InitMessage init = 1;
-    Message data = 2;
-}
-
-message PublishResponse {
-    message ConfigMessage {
-        int32 partition_count = 1;
-    }
-    ConfigMessage config = 1;
-    message RedirectMessage {
-        string new_broker = 1;
-    }
-    RedirectMessage redirect = 2;
-    bool is_closed = 3;
-}
-
-message DeleteTopicRequest {
-    string namespace = 1;
-    string topic = 2;
-}
-message DeleteTopicResponse {
-}
-
-message ConfigureTopicRequest {
-    string namespace = 1;
-    string topic = 2;
-    TopicConfiguration configuration = 3;
-}
-message ConfigureTopicResponse {
-}
-
-message GetTopicConfigurationRequest {
-    string namespace = 1;
-    string topic = 2;
-}
-message GetTopicConfigurationResponse {
-    TopicConfiguration configuration = 1;
-}
-
 message FindBrokerRequest {
     string namespace = 1;
     string topic = 2;
@@ -120,16 +26,3 @@ message FindBrokerRequest {
 message FindBrokerResponse {
     string broker = 1;
 }
-
-message TopicConfiguration {
-    int32 partition_count = 1;
-    string collection = 2;
-    string replication = 3;
-    bool is_transient = 4;
-    enum Partitioning {
-        NonNullKeyHash = 0; // If not null, hash by key value. If null, round robin
-        KeyHash = 1; // hash by key value
-        RoundRobin = 2; // round robin pick one partition
-    }
-    Partitioning partitoning = 5;
-}
diff --git a/weed/pb/mq_pb/mq.pb.go b/weed/pb/mq_pb/mq.pb.go
index a47ce128d..dac27c959 100644
--- a/weed/pb/mq_pb/mq.pb.go
+++ b/weed/pb/mq_pb/mq.pb.go
@@ -20,1057 +20,33 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-type SubscriberMessage_InitMessage_StartPosition int32
-
-const (
-	SubscriberMessage_InitMessage_LATEST    SubscriberMessage_InitMessage_StartPosition = 0 // Start at the newest message
-	SubscriberMessage_InitMessage_EARLIEST  SubscriberMessage_InitMessage_StartPosition = 1 // Start at the oldest message
-	SubscriberMessage_InitMessage_TIMESTAMP SubscriberMessage_InitMessage_StartPosition = 2 // Start after a specified timestamp, exclusive
-)
-
-// Enum value maps for SubscriberMessage_InitMessage_StartPosition.
-var (
-	SubscriberMessage_InitMessage_StartPosition_name = map[int32]string{
-		0: "LATEST",
-		1: "EARLIEST",
-		2: "TIMESTAMP",
-	}
-	SubscriberMessage_InitMessage_StartPosition_value = map[string]int32{
-		"LATEST":    0,
-		"EARLIEST":  1,
-		"TIMESTAMP": 2,
-	}
-)
-
-func (x SubscriberMessage_InitMessage_StartPosition) Enum() *SubscriberMessage_InitMessage_StartPosition {
-	p := new(SubscriberMessage_InitMessage_StartPosition)
-	*p = x
-	return p
-}
-
-func (x SubscriberMessage_InitMessage_StartPosition) String() string {
-	return protoimpl.X.EnumStringOf(x.Descriptor(), protoreflect.EnumNumber(x))
-}
-
-func (SubscriberMessage_InitMessage_StartPosition) Descriptor() protoreflect.EnumDescriptor {
-	return file_mq_proto_enumTypes[0].Descriptor()
-}
-
-func (SubscriberMessage_InitMessage_StartPosition) Type() protoreflect.EnumType {
-	return &file_mq_proto_enumTypes[0]
-}
-
-func (x SubscriberMessage_InitMessage_StartPosition) Number() protoreflect.EnumNumber {
-	return protoreflect.EnumNumber(x)
-}
-
-// Deprecated: Use SubscriberMessage_InitMessage_StartPosition.Descriptor instead.
-func (SubscriberMessage_InitMessage_StartPosition) EnumDescriptor() ([]byte, []int) {
-	return file_mq_proto_rawDescGZIP(), []int{0, 0, 0}
-}
-
-type TopicConfiguration_Partitioning int32
-
-const (
-	TopicConfiguration_NonNullKeyHash TopicConfiguration_Partitioning = 0 // If not null, hash by key value. If null, round robin
-	TopicConfiguration_KeyHash        TopicConfiguration_Partitioning = 1 // hash by key value
-	TopicConfiguration_RoundRobin     TopicConfiguration_Partitioning = 2 // round robin pick one partition
-)
-
-// Enum value maps for TopicConfiguration_Partitioning.
-var (
-	TopicConfiguration_Partitioning_name = map[int32]string{
-		0: "NonNullKeyHash",
-		1: "KeyHash",
-		2: "RoundRobin",
-	}
-	TopicConfiguration_Partitioning_value = map[string]int32{
-		"NonNullKeyHash": 0,
-		"KeyHash":        1,
-		"RoundRobin":     2,
-	}
-)
-
-func (x TopicConfiguration_Partitioning) Enum() *TopicConfiguration_Partitioning {
-	p := new(TopicConfiguration_Partitioning)
-	*p = x
-	return p
-}
-
-func (x TopicConfiguration_Partitioning) String() string {
-	return protoimpl.X.EnumStringOf(x.Descriptor(), protoreflect.EnumNumber(x))
-}
-
-func (TopicConfiguration_Partitioning) Descriptor() protoreflect.EnumDescriptor {
-	return file_mq_proto_enumTypes[1].Descriptor()
-}
-
-func (TopicConfiguration_Partitioning) Type() protoreflect.EnumType {
-	return &file_mq_proto_enumTypes[1]
-}
-
-func (x TopicConfiguration_Partitioning) Number() protoreflect.EnumNumber {
-	return protoreflect.EnumNumber(x)
-}
-
-// Deprecated: Use TopicConfiguration_Partitioning.Descriptor instead.
-func (TopicConfiguration_Partitioning) EnumDescriptor() ([]byte, []int) {
-	return file_mq_proto_rawDescGZIP(), []int{13, 0}
-}
-
-type SubscriberMessage struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	Init    *SubscriberMessage_InitMessage `protobuf:"bytes,1,opt,name=init,proto3" json:"init,omitempty"`
-	Ack     *SubscriberMessage_AckMessage  `protobuf:"bytes,2,opt,name=ack,proto3" json:"ack,omitempty"`
-	IsClose bool                           `protobuf:"varint,3,opt,name=is_close,json=isClose,proto3" json:"is_close,omitempty"`
-}
-
-func (x *SubscriberMessage) Reset() {
-	*x = SubscriberMessage{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_mq_proto_msgTypes[0]
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		ms.StoreMessageInfo(mi)
-	}
-}
-
-func (x *SubscriberMessage) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*SubscriberMessage) ProtoMessage() {}
-
-func (x *SubscriberMessage) ProtoReflect() protoreflect.Message {
-	mi := &file_mq_proto_msgTypes[0]
-	if protoimpl.UnsafeEnabled && x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use SubscriberMessage.ProtoReflect.Descriptor instead.
-func (*SubscriberMessage) Descriptor() ([]byte, []int) {
-	return file_mq_proto_rawDescGZIP(), []int{0}
-}
-
-func (x *SubscriberMessage) GetInit() *SubscriberMessage_InitMessage {
-	if x != nil {
-		return x.Init
-	}
-	return nil
-}
-
-func (x *SubscriberMessage) GetAck() *SubscriberMessage_AckMessage {
-	if x != nil {
-		return x.Ack
-	}
-	return nil
-}
-
-func (x *SubscriberMessage) GetIsClose() bool {
-	if x != nil {
-		return x.IsClose
-	}
-	return false
-}
-
-type Message struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	EventTimeNs int64             `protobuf:"varint,1,opt,name=event_time_ns,json=eventTimeNs,proto3" json:"event_time_ns,omitempty"`
-	Key         []byte            `protobuf:"bytes,2,opt,name=key,proto3" json:"key,omitempty"`                                                                                                 // Message key
-	Value       []byte            `protobuf:"bytes,3,opt,name=value,proto3" json:"value,omitempty"`                                                                                             // Message payload
-	Headers     map[string][]byte `protobuf:"bytes,4,rep,name=headers,proto3" json:"headers,omitempty" protobuf_key:"bytes,1,opt,name=key,proto3" protobuf_val:"bytes,2,opt,name=value,proto3"` // Message headers
-	IsClose     bool              `protobuf:"varint,5,opt,name=is_close,json=isClose,proto3" json:"is_close,omitempty"`
-}
-
-func (x *Message) Reset() {
-	*x = Message{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_mq_proto_msgTypes[1]
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		ms.StoreMessageInfo(mi)
-	}
-}
-
-func (x *Message) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*Message) ProtoMessage() {}
-
-func (x *Message) ProtoReflect() protoreflect.Message {
-	mi := &file_mq_proto_msgTypes[1]
-	if protoimpl.UnsafeEnabled && x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use Message.ProtoReflect.Descriptor instead.
-func (*Message) Descriptor() ([]byte, []int) {
-	return file_mq_proto_rawDescGZIP(), []int{1}
-}
-
-func (x *Message) GetEventTimeNs() int64 {
-	if x != nil {
-		return x.EventTimeNs
-	}
-	return 0
-}
-
-func (x *Message) GetKey() []byte {
-	if x != nil {
-		return x.Key
-	}
-	return nil
-}
-
-func (x *Message) GetValue() []byte {
-	if x != nil {
-		return x.Value
-	}
-	return nil
-}
-
-func (x *Message) GetHeaders() map[string][]byte {
-	if x != nil {
-		return x.Headers
-	}
-	return nil
-}
-
-func (x *Message) GetIsClose() bool {
-	if x != nil {
-		return x.IsClose
-	}
-	return false
-}
-
-type BrokerMessage struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	Data *Message `protobuf:"bytes,1,opt,name=data,proto3" json:"data,omitempty"`
-}
-
-func (x *BrokerMessage) Reset() {
-	*x = BrokerMessage{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_mq_proto_msgTypes[2]
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		ms.StoreMessageInfo(mi)
-	}
-}
-
-func (x *BrokerMessage) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*BrokerMessage) ProtoMessage() {}
-
-func (x *BrokerMessage) ProtoReflect() protoreflect.Message {
-	mi := &file_mq_proto_msgTypes[2]
-	if protoimpl.UnsafeEnabled && x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use BrokerMessage.ProtoReflect.Descriptor instead.
-func (*BrokerMessage) Descriptor() ([]byte, []int) {
-	return file_mq_proto_rawDescGZIP(), []int{2}
-}
-
-func (x *BrokerMessage) GetData() *Message {
-	if x != nil {
-		return x.Data
-	}
-	return nil
-}
-
-type PublishRequest struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	Init *PublishRequest_InitMessage `protobuf:"bytes,1,opt,name=init,proto3" json:"init,omitempty"`
-	Data *Message                    `protobuf:"bytes,2,opt,name=data,proto3" json:"data,omitempty"`
-}
-
-func (x *PublishRequest) Reset() {
-	*x = PublishRequest{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_mq_proto_msgTypes[3]
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		ms.StoreMessageInfo(mi)
-	}
-}
-
-func (x *PublishRequest) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*PublishRequest) ProtoMessage() {}
-
-func (x *PublishRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_mq_proto_msgTypes[3]
-	if protoimpl.UnsafeEnabled && x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use PublishRequest.ProtoReflect.Descriptor instead.
-func (*PublishRequest) Descriptor() ([]byte, []int) {
-	return file_mq_proto_rawDescGZIP(), []int{3}
-}
-
-func (x *PublishRequest) GetInit() *PublishRequest_InitMessage {
-	if x != nil {
-		return x.Init
-	}
-	return nil
-}
-
-func (x *PublishRequest) GetData() *Message {
-	if x != nil {
-		return x.Data
-	}
-	return nil
-}
-
-type PublishResponse struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	Config   *PublishResponse_ConfigMessage   `protobuf:"bytes,1,opt,name=config,proto3" json:"config,omitempty"`
-	Redirect *PublishResponse_RedirectMessage `protobuf:"bytes,2,opt,name=redirect,proto3" json:"redirect,omitempty"`
-	IsClosed bool                             `protobuf:"varint,3,opt,name=is_closed,json=isClosed,proto3" json:"is_closed,omitempty"`
-}
-
-func (x *PublishResponse) Reset() {
-	*x = PublishResponse{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_mq_proto_msgTypes[4]
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		ms.StoreMessageInfo(mi)
-	}
-}
-
-func (x *PublishResponse) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*PublishResponse) ProtoMessage() {}
-
-func (x *PublishResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_mq_proto_msgTypes[4]
-	if protoimpl.UnsafeEnabled && x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use PublishResponse.ProtoReflect.Descriptor instead.
-func (*PublishResponse) Descriptor() ([]byte, []int) {
-	return file_mq_proto_rawDescGZIP(), []int{4}
-}
-
-func (x *PublishResponse) GetConfig() *PublishResponse_ConfigMessage {
-	if x != nil {
-		return x.Config
-	}
-	return nil
-}
-
-func (x *PublishResponse) GetRedirect() *PublishResponse_RedirectMessage {
-	if x != nil {
-		return x.Redirect
-	}
-	return nil
-}
-
-func (x *PublishResponse) GetIsClosed() bool {
-	if x != nil {
-		return x.IsClosed
-	}
-	return false
-}
-
-type DeleteTopicRequest struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	Namespace string `protobuf:"bytes,1,opt,name=namespace,proto3" json:"namespace,omitempty"`
-	Topic     string `protobuf:"bytes,2,opt,name=topic,proto3" json:"topic,omitempty"`
-}
-
-func (x *DeleteTopicRequest) Reset() {
-	*x = DeleteTopicRequest{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_mq_proto_msgTypes[5]
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		ms.StoreMessageInfo(mi)
-	}
-}
-
-func (x *DeleteTopicRequest) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*DeleteTopicRequest) ProtoMessage() {}
-
-func (x *DeleteTopicRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_mq_proto_msgTypes[5]
-	if protoimpl.UnsafeEnabled && x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use DeleteTopicRequest.ProtoReflect.Descriptor instead.
-func (*DeleteTopicRequest) Descriptor() ([]byte, []int) {
-	return file_mq_proto_rawDescGZIP(), []int{5}
-}
-
-func (x *DeleteTopicRequest) GetNamespace() string {
-	if x != nil {
-		return x.Namespace
-	}
-	return ""
-}
-
-func (x *DeleteTopicRequest) GetTopic() string {
-	if x != nil {
-		return x.Topic
-	}
-	return ""
-}
-
-type DeleteTopicResponse struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-}
-
-func (x *DeleteTopicResponse) Reset() {
-	*x = DeleteTopicResponse{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_mq_proto_msgTypes[6]
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		ms.StoreMessageInfo(mi)
-	}
-}
-
-func (x *DeleteTopicResponse) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*DeleteTopicResponse) ProtoMessage() {}
-
-func (x *DeleteTopicResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_mq_proto_msgTypes[6]
-	if protoimpl.UnsafeEnabled && x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use DeleteTopicResponse.ProtoReflect.Descriptor instead.
-func (*DeleteTopicResponse) Descriptor() ([]byte, []int) {
-	return file_mq_proto_rawDescGZIP(), []int{6}
-}
-
-type ConfigureTopicRequest struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	Namespace     string              `protobuf:"bytes,1,opt,name=namespace,proto3" json:"namespace,omitempty"`
-	Topic         string              `protobuf:"bytes,2,opt,name=topic,proto3" json:"topic,omitempty"`
-	Configuration *TopicConfiguration `protobuf:"bytes,3,opt,name=configuration,proto3" json:"configuration,omitempty"`
-}
-
-func (x *ConfigureTopicRequest) Reset() {
-	*x = ConfigureTopicRequest{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_mq_proto_msgTypes[7]
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		ms.StoreMessageInfo(mi)
-	}
-}
-
-func (x *ConfigureTopicRequest) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*ConfigureTopicRequest) ProtoMessage() {}
-
-func (x *ConfigureTopicRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_mq_proto_msgTypes[7]
-	if protoimpl.UnsafeEnabled && x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use ConfigureTopicRequest.ProtoReflect.Descriptor instead.
-func (*ConfigureTopicRequest) Descriptor() ([]byte, []int) {
-	return file_mq_proto_rawDescGZIP(), []int{7}
-}
-
-func (x *ConfigureTopicRequest) GetNamespace() string {
-	if x != nil {
-		return x.Namespace
-	}
-	return ""
-}
-
-func (x *ConfigureTopicRequest) GetTopic() string {
-	if x != nil {
-		return x.Topic
-	}
-	return ""
-}
-
-func (x *ConfigureTopicRequest) GetConfiguration() *TopicConfiguration {
-	if x != nil {
-		return x.Configuration
-	}
-	return nil
-}
-
-type ConfigureTopicResponse struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-}
-
-func (x *ConfigureTopicResponse) Reset() {
-	*x = ConfigureTopicResponse{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_mq_proto_msgTypes[8]
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		ms.StoreMessageInfo(mi)
-	}
-}
-
-func (x *ConfigureTopicResponse) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*ConfigureTopicResponse) ProtoMessage() {}
-
-func (x *ConfigureTopicResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_mq_proto_msgTypes[8]
-	if protoimpl.UnsafeEnabled && x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use ConfigureTopicResponse.ProtoReflect.Descriptor instead.
-func (*ConfigureTopicResponse) Descriptor() ([]byte, []int) {
-	return file_mq_proto_rawDescGZIP(), []int{8}
-}
-
-type GetTopicConfigurationRequest struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	Namespace string `protobuf:"bytes,1,opt,name=namespace,proto3" json:"namespace,omitempty"`
-	Topic     string `protobuf:"bytes,2,opt,name=topic,proto3" json:"topic,omitempty"`
-}
-
-func (x *GetTopicConfigurationRequest) Reset() {
-	*x = GetTopicConfigurationRequest{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_mq_proto_msgTypes[9]
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		ms.StoreMessageInfo(mi)
-	}
-}
-
-func (x *GetTopicConfigurationRequest) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*GetTopicConfigurationRequest) ProtoMessage() {}
-
-func (x *GetTopicConfigurationRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_mq_proto_msgTypes[9]
-	if protoimpl.UnsafeEnabled && x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use GetTopicConfigurationRequest.ProtoReflect.Descriptor instead.
-func (*GetTopicConfigurationRequest) Descriptor() ([]byte, []int) {
-	return file_mq_proto_rawDescGZIP(), []int{9}
-}
-
-func (x *GetTopicConfigurationRequest) GetNamespace() string {
-	if x != nil {
-		return x.Namespace
-	}
-	return ""
-}
-
-func (x *GetTopicConfigurationRequest) GetTopic() string {
-	if x != nil {
-		return x.Topic
-	}
-	return ""
-}
-
-type GetTopicConfigurationResponse struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	Configuration *TopicConfiguration `protobuf:"bytes,1,opt,name=configuration,proto3" json:"configuration,omitempty"`
-}
-
-func (x *GetTopicConfigurationResponse) Reset() {
-	*x = GetTopicConfigurationResponse{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_mq_proto_msgTypes[10]
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		ms.StoreMessageInfo(mi)
-	}
-}
-
-func (x *GetTopicConfigurationResponse) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*GetTopicConfigurationResponse) ProtoMessage() {}
-
-func (x *GetTopicConfigurationResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_mq_proto_msgTypes[10]
-	if protoimpl.UnsafeEnabled && x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use GetTopicConfigurationResponse.ProtoReflect.Descriptor instead.
-func (*GetTopicConfigurationResponse) Descriptor() ([]byte, []int) {
-	return file_mq_proto_rawDescGZIP(), []int{10}
-}
-
-func (x *GetTopicConfigurationResponse) GetConfiguration() *TopicConfiguration {
-	if x != nil {
-		return x.Configuration
-	}
-	return nil
-}
-
-type FindBrokerRequest struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	Namespace string `protobuf:"bytes,1,opt,name=namespace,proto3" json:"namespace,omitempty"`
-	Topic     string `protobuf:"bytes,2,opt,name=topic,proto3" json:"topic,omitempty"`
-	Parition  int32  `protobuf:"varint,3,opt,name=parition,proto3" json:"parition,omitempty"`
-}
-
-func (x *FindBrokerRequest) Reset() {
-	*x = FindBrokerRequest{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_mq_proto_msgTypes[11]
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		ms.StoreMessageInfo(mi)
-	}
-}
-
-func (x *FindBrokerRequest) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*FindBrokerRequest) ProtoMessage() {}
-
-func (x *FindBrokerRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_mq_proto_msgTypes[11]
-	if protoimpl.UnsafeEnabled && x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use FindBrokerRequest.ProtoReflect.Descriptor instead.
-func (*FindBrokerRequest) Descriptor() ([]byte, []int) {
-	return file_mq_proto_rawDescGZIP(), []int{11}
-}
-
-func (x *FindBrokerRequest) GetNamespace() string {
-	if x != nil {
-		return x.Namespace
-	}
-	return ""
-}
-
-func (x *FindBrokerRequest) GetTopic() string {
-	if x != nil {
-		return x.Topic
-	}
-	return ""
-}
-
-func (x *FindBrokerRequest) GetParition() int32 {
-	if x != nil {
-		return x.Parition
-	}
-	return 0
-}
-
-type FindBrokerResponse struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	Broker string `protobuf:"bytes,1,opt,name=broker,proto3" json:"broker,omitempty"`
-}
-
-func (x *FindBrokerResponse) Reset() {
-	*x = FindBrokerResponse{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_mq_proto_msgTypes[12]
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		ms.StoreMessageInfo(mi)
-	}
-}
-
-func (x *FindBrokerResponse) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*FindBrokerResponse) ProtoMessage() {}
-
-func (x *FindBrokerResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_mq_proto_msgTypes[12]
-	if protoimpl.UnsafeEnabled && x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use FindBrokerResponse.ProtoReflect.Descriptor instead.
-func (*FindBrokerResponse) Descriptor() ([]byte, []int) {
-	return file_mq_proto_rawDescGZIP(), []int{12}
-}
-
-func (x *FindBrokerResponse) GetBroker() string {
-	if x != nil {
-		return x.Broker
-	}
-	return ""
-}
-
-type TopicConfiguration struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	PartitionCount int32                           `protobuf:"varint,1,opt,name=partition_count,json=partitionCount,proto3" json:"partition_count,omitempty"`
-	Collection     string                          `protobuf:"bytes,2,opt,name=collection,proto3" json:"collection,omitempty"`
-	Replication    string                          `protobuf:"bytes,3,opt,name=replication,proto3" json:"replication,omitempty"`
-	IsTransient    bool                            `protobuf:"varint,4,opt,name=is_transient,json=isTransient,proto3" json:"is_transient,omitempty"`
-	Partitoning    TopicConfiguration_Partitioning `protobuf:"varint,5,opt,name=partitoning,proto3,enum=messaging_pb.TopicConfiguration_Partitioning" json:"partitoning,omitempty"`
-}
-
-func (x *TopicConfiguration) Reset() {
-	*x = TopicConfiguration{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_mq_proto_msgTypes[13]
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		ms.StoreMessageInfo(mi)
-	}
-}
-
-func (x *TopicConfiguration) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*TopicConfiguration) ProtoMessage() {}
-
-func (x *TopicConfiguration) ProtoReflect() protoreflect.Message {
-	mi := &file_mq_proto_msgTypes[13]
-	if protoimpl.UnsafeEnabled && x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use TopicConfiguration.ProtoReflect.Descriptor instead.
-func (*TopicConfiguration) Descriptor() ([]byte, []int) {
-	return file_mq_proto_rawDescGZIP(), []int{13}
-}
-
-func (x *TopicConfiguration) GetPartitionCount() int32 {
-	if x != nil {
-		return x.PartitionCount
-	}
-	return 0
-}
-
-func (x *TopicConfiguration) GetCollection() string {
-	if x != nil {
-		return x.Collection
-	}
-	return ""
-}
-
-func (x *TopicConfiguration) GetReplication() string {
-	if x != nil {
-		return x.Replication
-	}
-	return ""
-}
-
-func (x *TopicConfiguration) GetIsTransient() bool {
-	if x != nil {
-		return x.IsTransient
-	}
-	return false
-}
-
-func (x *TopicConfiguration) GetPartitoning() TopicConfiguration_Partitioning {
-	if x != nil {
-		return x.Partitoning
-	}
-	return TopicConfiguration_NonNullKeyHash
-}
-
-type SubscriberMessage_InitMessage struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	Namespace     string                                      `protobuf:"bytes,1,opt,name=namespace,proto3" json:"namespace,omitempty"`
-	Topic         string                                      `protobuf:"bytes,2,opt,name=topic,proto3" json:"topic,omitempty"`
-	Partition     int32                                       `protobuf:"varint,3,opt,name=partition,proto3" json:"partition,omitempty"`
-	StartPosition SubscriberMessage_InitMessage_StartPosition `protobuf:"varint,4,opt,name=startPosition,proto3,enum=messaging_pb.SubscriberMessage_InitMessage_StartPosition" json:"startPosition,omitempty"` // Where to begin consuming from
-	TimestampNs   int64                                       `protobuf:"varint,5,opt,name=timestampNs,proto3" json:"timestampNs,omitempty"`                                                                   // timestamp in nano seconds
-	SubscriberId  string                                      `protobuf:"bytes,6,opt,name=subscriber_id,json=subscriberId,proto3" json:"subscriber_id,omitempty"`                                              // uniquely identify a subscriber to track consumption
-}
-
-func (x *SubscriberMessage_InitMessage) Reset() {
-	*x = SubscriberMessage_InitMessage{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_mq_proto_msgTypes[14]
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		ms.StoreMessageInfo(mi)
-	}
-}
-
-func (x *SubscriberMessage_InitMessage) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*SubscriberMessage_InitMessage) ProtoMessage() {}
-
-func (x *SubscriberMessage_InitMessage) ProtoReflect() protoreflect.Message {
-	mi := &file_mq_proto_msgTypes[14]
-	if protoimpl.UnsafeEnabled && x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use SubscriberMessage_InitMessage.ProtoReflect.Descriptor instead.
-func (*SubscriberMessage_InitMessage) Descriptor() ([]byte, []int) {
-	return file_mq_proto_rawDescGZIP(), []int{0, 0}
-}
-
-func (x *SubscriberMessage_InitMessage) GetNamespace() string {
-	if x != nil {
-		return x.Namespace
-	}
-	return ""
-}
-
-func (x *SubscriberMessage_InitMessage) GetTopic() string {
-	if x != nil {
-		return x.Topic
-	}
-	return ""
-}
-
-func (x *SubscriberMessage_InitMessage) GetPartition() int32 {
-	if x != nil {
-		return x.Partition
-	}
-	return 0
-}
-
-func (x *SubscriberMessage_InitMessage) GetStartPosition() SubscriberMessage_InitMessage_StartPosition {
-	if x != nil {
-		return x.StartPosition
-	}
-	return SubscriberMessage_InitMessage_LATEST
-}
-
-func (x *SubscriberMessage_InitMessage) GetTimestampNs() int64 {
-	if x != nil {
-		return x.TimestampNs
-	}
-	return 0
-}
-
-func (x *SubscriberMessage_InitMessage) GetSubscriberId() string {
-	if x != nil {
-		return x.SubscriberId
-	}
-	return ""
-}
-
-type SubscriberMessage_AckMessage struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	MessageId int64 `protobuf:"varint,1,opt,name=message_id,json=messageId,proto3" json:"message_id,omitempty"`
-}
-
-func (x *SubscriberMessage_AckMessage) Reset() {
-	*x = SubscriberMessage_AckMessage{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_mq_proto_msgTypes[15]
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		ms.StoreMessageInfo(mi)
-	}
-}
-
-func (x *SubscriberMessage_AckMessage) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*SubscriberMessage_AckMessage) ProtoMessage() {}
-
-func (x *SubscriberMessage_AckMessage) ProtoReflect() protoreflect.Message {
-	mi := &file_mq_proto_msgTypes[15]
-	if protoimpl.UnsafeEnabled && x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use SubscriberMessage_AckMessage.ProtoReflect.Descriptor instead.
-func (*SubscriberMessage_AckMessage) Descriptor() ([]byte, []int) {
-	return file_mq_proto_rawDescGZIP(), []int{0, 1}
-}
-
-func (x *SubscriberMessage_AckMessage) GetMessageId() int64 {
-	if x != nil {
-		return x.MessageId
-	}
-	return 0
-}
-
-type PublishRequest_InitMessage struct {
+type FindBrokerRequest struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	Namespace string `protobuf:"bytes,1,opt,name=namespace,proto3" json:"namespace,omitempty"` // only needed on the initial request
-	Topic     string `protobuf:"bytes,2,opt,name=topic,proto3" json:"topic,omitempty"`         // only needed on the initial request
-	Partition int32  `protobuf:"varint,3,opt,name=partition,proto3" json:"partition,omitempty"`
+	Namespace string `protobuf:"bytes,1,opt,name=namespace,proto3" json:"namespace,omitempty"`
+	Topic     string `protobuf:"bytes,2,opt,name=topic,proto3" json:"topic,omitempty"`
+	Parition  int32  `protobuf:"varint,3,opt,name=parition,proto3" json:"parition,omitempty"`
 }
 
-func (x *PublishRequest_InitMessage) Reset() {
-	*x = PublishRequest_InitMessage{}
+func (x *FindBrokerRequest) Reset() {
+	*x = FindBrokerRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_mq_proto_msgTypes[17]
+		mi := &file_mq_proto_msgTypes[0]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
 }
 
-func (x *PublishRequest_InitMessage) String() string {
+func (x *FindBrokerRequest) String() string {
 	return protoimpl.X.MessageStringOf(x)
 }
 
-func (*PublishRequest_InitMessage) ProtoMessage() {}
+func (*FindBrokerRequest) ProtoMessage() {}
 
-func (x *PublishRequest_InitMessage) ProtoReflect() protoreflect.Message {
-	mi := &file_mq_proto_msgTypes[17]
+func (x *FindBrokerRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_mq_proto_msgTypes[0]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -1081,104 +57,57 @@ func (x *PublishRequest_InitMessage) ProtoReflect() protoreflect.Message {
 	return mi.MessageOf(x)
 }
 
-// Deprecated: Use PublishRequest_InitMessage.ProtoReflect.Descriptor instead.
-func (*PublishRequest_InitMessage) Descriptor() ([]byte, []int) {
-	return file_mq_proto_rawDescGZIP(), []int{3, 0}
+// Deprecated: Use FindBrokerRequest.ProtoReflect.Descriptor instead.
+func (*FindBrokerRequest) Descriptor() ([]byte, []int) {
+	return file_mq_proto_rawDescGZIP(), []int{0}
 }
 
-func (x *PublishRequest_InitMessage) GetNamespace() string {
+func (x *FindBrokerRequest) GetNamespace() string {
 	if x != nil {
 		return x.Namespace
 	}
 	return ""
 }
 
-func (x *PublishRequest_InitMessage) GetTopic() string {
+func (x *FindBrokerRequest) GetTopic() string {
 	if x != nil {
 		return x.Topic
 	}
 	return ""
 }
 
-func (x *PublishRequest_InitMessage) GetPartition() int32 {
-	if x != nil {
-		return x.Partition
-	}
-	return 0
-}
-
-type PublishResponse_ConfigMessage struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	PartitionCount int32 `protobuf:"varint,1,opt,name=partition_count,json=partitionCount,proto3" json:"partition_count,omitempty"`
-}
-
-func (x *PublishResponse_ConfigMessage) Reset() {
-	*x = PublishResponse_ConfigMessage{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_mq_proto_msgTypes[18]
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		ms.StoreMessageInfo(mi)
-	}
-}
-
-func (x *PublishResponse_ConfigMessage) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*PublishResponse_ConfigMessage) ProtoMessage() {}
-
-func (x *PublishResponse_ConfigMessage) ProtoReflect() protoreflect.Message {
-	mi := &file_mq_proto_msgTypes[18]
-	if protoimpl.UnsafeEnabled && x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use PublishResponse_ConfigMessage.ProtoReflect.Descriptor instead.
-func (*PublishResponse_ConfigMessage) Descriptor() ([]byte, []int) {
-	return file_mq_proto_rawDescGZIP(), []int{4, 0}
-}
-
-func (x *PublishResponse_ConfigMessage) GetPartitionCount() int32 {
+func (x *FindBrokerRequest) GetParition() int32 {
 	if x != nil {
-		return x.PartitionCount
+		return x.Parition
 	}
 	return 0
 }
 
-type PublishResponse_RedirectMessage struct {
+type FindBrokerResponse struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	NewBroker string `protobuf:"bytes,1,opt,name=new_broker,json=newBroker,proto3" json:"new_broker,omitempty"`
+	Broker string `protobuf:"bytes,1,opt,name=broker,proto3" json:"broker,omitempty"`
 }
 
-func (x *PublishResponse_RedirectMessage) Reset() {
-	*x = PublishResponse_RedirectMessage{}
+func (x *FindBrokerResponse) Reset() {
+	*x = FindBrokerResponse{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_mq_proto_msgTypes[19]
+		mi := &file_mq_proto_msgTypes[1]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
 }
 
-func (x *PublishResponse_RedirectMessage) String() string {
+func (x *FindBrokerResponse) String() string {
 	return protoimpl.X.MessageStringOf(x)
 }
 
-func (*PublishResponse_RedirectMessage) ProtoMessage() {}
+func (*FindBrokerResponse) ProtoMessage() {}
 
-func (x *PublishResponse_RedirectMessage) ProtoReflect() protoreflect.Message {
-	mi := &file_mq_proto_msgTypes[19]
+func (x *FindBrokerResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_mq_proto_msgTypes[1]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -1189,14 +118,14 @@ func (x *PublishResponse_RedirectMessage) ProtoReflect() protoreflect.Message {
 	return mi.MessageOf(x)
 }
 
-// Deprecated: Use PublishResponse_RedirectMessage.ProtoReflect.Descriptor instead.
-func (*PublishResponse_RedirectMessage) Descriptor() ([]byte, []int) {
-	return file_mq_proto_rawDescGZIP(), []int{4, 1}
+// Deprecated: Use FindBrokerResponse.ProtoReflect.Descriptor instead.
+func (*FindBrokerResponse) Descriptor() ([]byte, []int) {
+	return file_mq_proto_rawDescGZIP(), []int{1}
 }
 
-func (x *PublishResponse_RedirectMessage) GetNewBroker() string {
+func (x *FindBrokerResponse) GetBroker() string {
 	if x != nil {
-		return x.NewBroker
+		return x.Broker
 	}
 	return ""
 }
@@ -1205,190 +134,28 @@ var File_mq_proto protoreflect.FileDescriptor
 
 var file_mq_proto_rawDesc = []byte{
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-	0x65, 0x65, 0x64, 0x66, 0x73, 0x2e, 0x6d, 0x71, 0x42, 0x10, 0x4d, 0x65, 0x73, 0x73, 0x61, 0x67,
-	0x51, 0x75, 0x65, 0x75, 0x65, 0x50, 0x72, 0x6f, 0x74, 0x6f, 0x5a, 0x2c, 0x67, 0x69, 0x74, 0x68,
-	0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x63, 0x68, 0x72, 0x69, 0x73, 0x6c, 0x75, 0x73, 0x66,
-	0x2f, 0x73, 0x65, 0x61, 0x77, 0x65, 0x65, 0x64, 0x66, 0x73, 0x2f, 0x77, 0x65, 0x65, 0x64, 0x2f,
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+	0x42, 0x72, 0x6f, 0x6b, 0x65, 0x72, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x12, 0x1c, 0x0a,
+	0x09, 0x6e, 0x61, 0x6d, 0x65, 0x73, 0x70, 0x61, 0x63, 0x65, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09,
+	0x52, 0x09, 0x6e, 0x61, 0x6d, 0x65, 0x73, 0x70, 0x61, 0x63, 0x65, 0x12, 0x14, 0x0a, 0x05, 0x74,
+	0x6f, 0x70, 0x69, 0x63, 0x18, 0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x05, 0x74, 0x6f, 0x70, 0x69,
+	0x63, 0x12, 0x1a, 0x0a, 0x08, 0x70, 0x61, 0x72, 0x69, 0x74, 0x69, 0x6f, 0x6e, 0x18, 0x03, 0x20,
+	0x01, 0x28, 0x05, 0x52, 0x08, 0x70, 0x61, 0x72, 0x69, 0x74, 0x69, 0x6f, 0x6e, 0x22, 0x2c, 0x0a,
+	0x12, 0x46, 0x69, 0x6e, 0x64, 0x42, 0x72, 0x6f, 0x6b, 0x65, 0x72, 0x52, 0x65, 0x73, 0x70, 0x6f,
+	0x6e, 0x73, 0x65, 0x12, 0x16, 0x0a, 0x06, 0x62, 0x72, 0x6f, 0x6b, 0x65, 0x72, 0x18, 0x01, 0x20,
+	0x01, 0x28, 0x09, 0x52, 0x06, 0x62, 0x72, 0x6f, 0x6b, 0x65, 0x72, 0x32, 0x65, 0x0a, 0x10, 0x53,
+	0x65, 0x61, 0x77, 0x65, 0x65, 0x64, 0x4d, 0x65, 0x73, 0x73, 0x61, 0x67, 0x69, 0x6e, 0x67, 0x12,
+	0x51, 0x0a, 0x0a, 0x46, 0x69, 0x6e, 0x64, 0x42, 0x72, 0x6f, 0x6b, 0x65, 0x72, 0x12, 0x1f, 0x2e,
+	0x6d, 0x65, 0x73, 0x73, 0x61, 0x67, 0x69, 0x6e, 0x67, 0x5f, 0x70, 0x62, 0x2e, 0x46, 0x69, 0x6e,
+	0x64, 0x42, 0x72, 0x6f, 0x6b, 0x65, 0x72, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x20,
+	0x2e, 0x6d, 0x65, 0x73, 0x73, 0x61, 0x67, 0x69, 0x6e, 0x67, 0x5f, 0x70, 0x62, 0x2e, 0x46, 0x69,
+	0x6e, 0x64, 0x42, 0x72, 0x6f, 0x6b, 0x65, 0x72, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65,
+	0x22, 0x00, 0x42, 0x4e, 0x0a, 0x0c, 0x73, 0x65, 0x61, 0x77, 0x65, 0x65, 0x64, 0x66, 0x73, 0x2e,
+	0x6d, 0x71, 0x42, 0x10, 0x4d, 0x65, 0x73, 0x73, 0x61, 0x67, 0x51, 0x75, 0x65, 0x75, 0x65, 0x50,
+	0x72, 0x6f, 0x74, 0x6f, 0x5a, 0x2c, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d,
+	0x2f, 0x63, 0x68, 0x72, 0x69, 0x73, 0x6c, 0x75, 0x73, 0x66, 0x2f, 0x73, 0x65, 0x61, 0x77, 0x65,
+	0x65, 0x64, 0x66, 0x73, 0x2f, 0x77, 0x65, 0x65, 0x64, 0x2f, 0x70, 0x62, 0x2f, 0x6d, 0x71, 0x5f,
+	0x70, 0x62, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
@@ -1403,62 +170,19 @@ func file_mq_proto_rawDescGZIP() []byte {
 	return file_mq_proto_rawDescData
 }
 
-var file_mq_proto_enumTypes = make([]protoimpl.EnumInfo, 2)
-var file_mq_proto_msgTypes = make([]protoimpl.MessageInfo, 20)
+var file_mq_proto_msgTypes = make([]protoimpl.MessageInfo, 2)
 var file_mq_proto_goTypes = []interface{}{
-	(SubscriberMessage_InitMessage_StartPosition)(0), // 0: messaging_pb.SubscriberMessage.InitMessage.StartPosition
-	(TopicConfiguration_Partitioning)(0),             // 1: messaging_pb.TopicConfiguration.Partitioning
-	(*SubscriberMessage)(nil),                        // 2: messaging_pb.SubscriberMessage
-	(*Message)(nil),                                  // 3: messaging_pb.Message
-	(*BrokerMessage)(nil),                            // 4: messaging_pb.BrokerMessage
-	(*PublishRequest)(nil),                           // 5: messaging_pb.PublishRequest
-	(*PublishResponse)(nil),                          // 6: messaging_pb.PublishResponse
-	(*DeleteTopicRequest)(nil),                       // 7: messaging_pb.DeleteTopicRequest
-	(*DeleteTopicResponse)(nil),                      // 8: messaging_pb.DeleteTopicResponse
-	(*ConfigureTopicRequest)(nil),                    // 9: messaging_pb.ConfigureTopicRequest
-	(*ConfigureTopicResponse)(nil),                   // 10: messaging_pb.ConfigureTopicResponse
-	(*GetTopicConfigurationRequest)(nil),             // 11: messaging_pb.GetTopicConfigurationRequest
-	(*GetTopicConfigurationResponse)(nil),            // 12: messaging_pb.GetTopicConfigurationResponse
-	(*FindBrokerRequest)(nil),                        // 13: messaging_pb.FindBrokerRequest
-	(*FindBrokerResponse)(nil),                       // 14: messaging_pb.FindBrokerResponse
-	(*TopicConfiguration)(nil),                       // 15: messaging_pb.TopicConfiguration
-	(*SubscriberMessage_InitMessage)(nil),            // 16: messaging_pb.SubscriberMessage.InitMessage
-	(*SubscriberMessage_AckMessage)(nil),             // 17: messaging_pb.SubscriberMessage.AckMessage
-	nil,                                              // 18: messaging_pb.Message.HeadersEntry
-	(*PublishRequest_InitMessage)(nil),               // 19: messaging_pb.PublishRequest.InitMessage
-	(*PublishResponse_ConfigMessage)(nil),            // 20: messaging_pb.PublishResponse.ConfigMessage
-	(*PublishResponse_RedirectMessage)(nil),          // 21: messaging_pb.PublishResponse.RedirectMessage
+	(*FindBrokerRequest)(nil),  // 0: messaging_pb.FindBrokerRequest
+	(*FindBrokerResponse)(nil), // 1: messaging_pb.FindBrokerResponse
 }
 var file_mq_proto_depIdxs = []int32{
-	16, // 0: messaging_pb.SubscriberMessage.init:type_name -> messaging_pb.SubscriberMessage.InitMessage
-	17, // 1: messaging_pb.SubscriberMessage.ack:type_name -> messaging_pb.SubscriberMessage.AckMessage
-	18, // 2: messaging_pb.Message.headers:type_name -> messaging_pb.Message.HeadersEntry
-	3,  // 3: messaging_pb.BrokerMessage.data:type_name -> messaging_pb.Message
-	19, // 4: messaging_pb.PublishRequest.init:type_name -> messaging_pb.PublishRequest.InitMessage
-	3,  // 5: messaging_pb.PublishRequest.data:type_name -> messaging_pb.Message
-	20, // 6: messaging_pb.PublishResponse.config:type_name -> messaging_pb.PublishResponse.ConfigMessage
-	21, // 7: messaging_pb.PublishResponse.redirect:type_name -> messaging_pb.PublishResponse.RedirectMessage
-	15, // 8: messaging_pb.ConfigureTopicRequest.configuration:type_name -> messaging_pb.TopicConfiguration
-	15, // 9: messaging_pb.GetTopicConfigurationResponse.configuration:type_name -> messaging_pb.TopicConfiguration
-	1,  // 10: messaging_pb.TopicConfiguration.partitoning:type_name -> messaging_pb.TopicConfiguration.Partitioning
-	0,  // 11: messaging_pb.SubscriberMessage.InitMessage.startPosition:type_name -> messaging_pb.SubscriberMessage.InitMessage.StartPosition
-	2,  // 12: messaging_pb.SeaweedMessaging.Subscribe:input_type -> messaging_pb.SubscriberMessage
-	5,  // 13: messaging_pb.SeaweedMessaging.Publish:input_type -> messaging_pb.PublishRequest
-	7,  // 14: messaging_pb.SeaweedMessaging.DeleteTopic:input_type -> messaging_pb.DeleteTopicRequest
-	9,  // 15: messaging_pb.SeaweedMessaging.ConfigureTopic:input_type -> messaging_pb.ConfigureTopicRequest
-	11, // 16: messaging_pb.SeaweedMessaging.GetTopicConfiguration:input_type -> messaging_pb.GetTopicConfigurationRequest
-	13, // 17: messaging_pb.SeaweedMessaging.FindBroker:input_type -> messaging_pb.FindBrokerRequest
-	4,  // 18: messaging_pb.SeaweedMessaging.Subscribe:output_type -> messaging_pb.BrokerMessage
-	6,  // 19: messaging_pb.SeaweedMessaging.Publish:output_type -> messaging_pb.PublishResponse
-	8,  // 20: messaging_pb.SeaweedMessaging.DeleteTopic:output_type -> messaging_pb.DeleteTopicResponse
-	10, // 21: messaging_pb.SeaweedMessaging.ConfigureTopic:output_type -> messaging_pb.ConfigureTopicResponse
-	12, // 22: messaging_pb.SeaweedMessaging.GetTopicConfiguration:output_type -> messaging_pb.GetTopicConfigurationResponse
-	14, // 23: messaging_pb.SeaweedMessaging.FindBroker:output_type -> messaging_pb.FindBrokerResponse
-	18, // [18:24] is the sub-list for method output_type
-	12, // [12:18] is the sub-list for method input_type
-	12, // [12:12] is the sub-list for extension type_name
-	12, // [12:12] is the sub-list for extension extendee
-	0,  // [0:12] is the sub-list for field type_name
+	0, // 0: messaging_pb.SeaweedMessaging.FindBroker:input_type -> messaging_pb.FindBrokerRequest
+	1, // 1: messaging_pb.SeaweedMessaging.FindBroker:output_type -> messaging_pb.FindBrokerResponse
+	1, // [1:2] is the sub-list for method output_type
+	0, // [0:1] is the sub-list for method input_type
+	0, // [0:0] is the sub-list for extension type_name
+	0, // [0:0] is the sub-list for extension extendee
+	0, // [0:0] is the sub-list for field type_name
 }
 
 func init() { file_mq_proto_init() }
@@ -1468,138 +192,6 @@ func file_mq_proto_init() {
 	}
 	if !protoimpl.UnsafeEnabled {
 		file_mq_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*SubscriberMessage); i {
-			case 0:
-				return &v.state
-			case 1:
-				return &v.sizeCache
-			case 2:
-				return &v.unknownFields
-			default:
-				return nil
-			}
-		}
-		file_mq_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*Message); i {
-			case 0:
-				return &v.state
-			case 1:
-				return &v.sizeCache
-			case 2:
-				return &v.unknownFields
-			default:
-				return nil
-			}
-		}
-		file_mq_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*BrokerMessage); i {
-			case 0:
-				return &v.state
-			case 1:
-				return &v.sizeCache
-			case 2:
-				return &v.unknownFields
-			default:
-				return nil
-			}
-		}
-		file_mq_proto_msgTypes[3].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*PublishRequest); i {
-			case 0:
-				return &v.state
-			case 1:
-				return &v.sizeCache
-			case 2:
-				return &v.unknownFields
-			default:
-				return nil
-			}
-		}
-		file_mq_proto_msgTypes[4].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*PublishResponse); i {
-			case 0:
-				return &v.state
-			case 1:
-				return &v.sizeCache
-			case 2:
-				return &v.unknownFields
-			default:
-				return nil
-			}
-		}
-		file_mq_proto_msgTypes[5].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*DeleteTopicRequest); i {
-			case 0:
-				return &v.state
-			case 1:
-				return &v.sizeCache
-			case 2:
-				return &v.unknownFields
-			default:
-				return nil
-			}
-		}
-		file_mq_proto_msgTypes[6].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*DeleteTopicResponse); i {
-			case 0:
-				return &v.state
-			case 1:
-				return &v.sizeCache
-			case 2:
-				return &v.unknownFields
-			default:
-				return nil
-			}
-		}
-		file_mq_proto_msgTypes[7].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*ConfigureTopicRequest); i {
-			case 0:
-				return &v.state
-			case 1:
-				return &v.sizeCache
-			case 2:
-				return &v.unknownFields
-			default:
-				return nil
-			}
-		}
-		file_mq_proto_msgTypes[8].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*ConfigureTopicResponse); i {
-			case 0:
-				return &v.state
-			case 1:
-				return &v.sizeCache
-			case 2:
-				return &v.unknownFields
-			default:
-				return nil
-			}
-		}
-		file_mq_proto_msgTypes[9].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*GetTopicConfigurationRequest); i {
-			case 0:
-				return &v.state
-			case 1:
-				return &v.sizeCache
-			case 2:
-				return &v.unknownFields
-			default:
-				return nil
-			}
-		}
-		file_mq_proto_msgTypes[10].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*GetTopicConfigurationResponse); i {
-			case 0:
-				return &v.state
-			case 1:
-				return &v.sizeCache
-			case 2:
-				return &v.unknownFields
-			default:
-				return nil
-			}
-		}
-		file_mq_proto_msgTypes[11].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*FindBrokerRequest); i {
 			case 0:
 				return &v.state
@@ -1611,7 +203,7 @@ func file_mq_proto_init() {
 				return nil
 			}
 		}
-		file_mq_proto_msgTypes[12].Exporter = func(v interface{}, i int) interface{} {
+		file_mq_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*FindBrokerResponse); i {
 			case 0:
 				return &v.state
@@ -1623,92 +215,19 @@ func file_mq_proto_init() {
 				return nil
 			}
 		}
-		file_mq_proto_msgTypes[13].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*TopicConfiguration); i {
-			case 0:
-				return &v.state
-			case 1:
-				return &v.sizeCache
-			case 2:
-				return &v.unknownFields
-			default:
-				return nil
-			}
-		}
-		file_mq_proto_msgTypes[14].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*SubscriberMessage_InitMessage); i {
-			case 0:
-				return &v.state
-			case 1:
-				return &v.sizeCache
-			case 2:
-				return &v.unknownFields
-			default:
-				return nil
-			}
-		}
-		file_mq_proto_msgTypes[15].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*SubscriberMessage_AckMessage); i {
-			case 0:
-				return &v.state
-			case 1:
-				return &v.sizeCache
-			case 2:
-				return &v.unknownFields
-			default:
-				return nil
-			}
-		}
-		file_mq_proto_msgTypes[17].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*PublishRequest_InitMessage); i {
-			case 0:
-				return &v.state
-			case 1:
-				return &v.sizeCache
-			case 2:
-				return &v.unknownFields
-			default:
-				return nil
-			}
-		}
-		file_mq_proto_msgTypes[18].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*PublishResponse_ConfigMessage); i {
-			case 0:
-				return &v.state
-			case 1:
-				return &v.sizeCache
-			case 2:
-				return &v.unknownFields
-			default:
-				return nil
-			}
-		}
-		file_mq_proto_msgTypes[19].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*PublishResponse_RedirectMessage); i {
-			case 0:
-				return &v.state
-			case 1:
-				return &v.sizeCache
-			case 2:
-				return &v.unknownFields
-			default:
-				return nil
-			}
-		}
 	}
 	type x struct{}
 	out := protoimpl.TypeBuilder{
 		File: protoimpl.DescBuilder{
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: file_mq_proto_rawDesc,
-			NumEnums:      2,
-			NumMessages:   20,
+			NumEnums:      0,
+			NumMessages:   2,
 			NumExtensions: 0,
 			NumServices:   1,
 		},
 		GoTypes:           file_mq_proto_goTypes,
 		DependencyIndexes: file_mq_proto_depIdxs,
-		EnumInfos:         file_mq_proto_enumTypes,
 		MessageInfos:      file_mq_proto_msgTypes,
 	}.Build()
 	File_mq_proto = out.File
diff --git a/weed/pb/mq_pb/mq_grpc.pb.go b/weed/pb/mq_pb/mq_grpc.pb.go
index 3c986fc78..60258e23d 100644
--- a/weed/pb/mq_pb/mq_grpc.pb.go
+++ b/weed/pb/mq_pb/mq_grpc.pb.go
@@ -18,11 +18,6 @@ const _ = grpc.SupportPackageIsVersion7
 //
 // For semantics around ctx use and closing/ending streaming RPCs, please refer to https://pkg.go.dev/google.golang.org/grpc/?tab=doc#ClientConn.NewStream.
 type SeaweedMessagingClient interface {
-	Subscribe(ctx context.Context, opts ...grpc.CallOption) (SeaweedMessaging_SubscribeClient, error)
-	Publish(ctx context.Context, opts ...grpc.CallOption) (SeaweedMessaging_PublishClient, error)
-	DeleteTopic(ctx context.Context, in *DeleteTopicRequest, opts ...grpc.CallOption) (*DeleteTopicResponse, error)
-	ConfigureTopic(ctx context.Context, in *ConfigureTopicRequest, opts ...grpc.CallOption) (*ConfigureTopicResponse, error)
-	GetTopicConfiguration(ctx context.Context, in *GetTopicConfigurationRequest, opts ...grpc.CallOption) (*GetTopicConfigurationResponse, error)
 	FindBroker(ctx context.Context, in *FindBrokerRequest, opts ...grpc.CallOption) (*FindBrokerResponse, error)
 }
 
@@ -34,95 +29,6 @@ func NewSeaweedMessagingClient(cc grpc.ClientConnInterface) SeaweedMessagingClie
 	return &seaweedMessagingClient{cc}
 }
 
-func (c *seaweedMessagingClient) Subscribe(ctx context.Context, opts ...grpc.CallOption) (SeaweedMessaging_SubscribeClient, error) {
-	stream, err := c.cc.NewStream(ctx, &SeaweedMessaging_ServiceDesc.Streams[0], "/messaging_pb.SeaweedMessaging/Subscribe", opts...)
-	if err != nil {
-		return nil, err
-	}
-	x := &seaweedMessagingSubscribeClient{stream}
-	return x, nil
-}
-
-type SeaweedMessaging_SubscribeClient interface {
-	Send(*SubscriberMessage) error
-	Recv() (*BrokerMessage, error)
-	grpc.ClientStream
-}
-
-type seaweedMessagingSubscribeClient struct {
-	grpc.ClientStream
-}
-
-func (x *seaweedMessagingSubscribeClient) Send(m *SubscriberMessage) error {
-	return x.ClientStream.SendMsg(m)
-}
-
-func (x *seaweedMessagingSubscribeClient) Recv() (*BrokerMessage, error) {
-	m := new(BrokerMessage)
-	if err := x.ClientStream.RecvMsg(m); err != nil {
-		return nil, err
-	}
-	return m, nil
-}
-
-func (c *seaweedMessagingClient) Publish(ctx context.Context, opts ...grpc.CallOption) (SeaweedMessaging_PublishClient, error) {
-	stream, err := c.cc.NewStream(ctx, &SeaweedMessaging_ServiceDesc.Streams[1], "/messaging_pb.SeaweedMessaging/Publish", opts...)
-	if err != nil {
-		return nil, err
-	}
-	x := &seaweedMessagingPublishClient{stream}
-	return x, nil
-}
-
-type SeaweedMessaging_PublishClient interface {
-	Send(*PublishRequest) error
-	Recv() (*PublishResponse, error)
-	grpc.ClientStream
-}
-
-type seaweedMessagingPublishClient struct {
-	grpc.ClientStream
-}
-
-func (x *seaweedMessagingPublishClient) Send(m *PublishRequest) error {
-	return x.ClientStream.SendMsg(m)
-}
-
-func (x *seaweedMessagingPublishClient) Recv() (*PublishResponse, error) {
-	m := new(PublishResponse)
-	if err := x.ClientStream.RecvMsg(m); err != nil {
-		return nil, err
-	}
-	return m, nil
-}
-
-func (c *seaweedMessagingClient) DeleteTopic(ctx context.Context, in *DeleteTopicRequest, opts ...grpc.CallOption) (*DeleteTopicResponse, error) {
-	out := new(DeleteTopicResponse)
-	err := c.cc.Invoke(ctx, "/messaging_pb.SeaweedMessaging/DeleteTopic", in, out, opts...)
-	if err != nil {
-		return nil, err
-	}
-	return out, nil
-}
-
-func (c *seaweedMessagingClient) ConfigureTopic(ctx context.Context, in *ConfigureTopicRequest, opts ...grpc.CallOption) (*ConfigureTopicResponse, error) {
-	out := new(ConfigureTopicResponse)
-	err := c.cc.Invoke(ctx, "/messaging_pb.SeaweedMessaging/ConfigureTopic", in, out, opts...)
-	if err != nil {
-		return nil, err
-	}
-	return out, nil
-}
-
-func (c *seaweedMessagingClient) GetTopicConfiguration(ctx context.Context, in *GetTopicConfigurationRequest, opts ...grpc.CallOption) (*GetTopicConfigurationResponse, error) {
-	out := new(GetTopicConfigurationResponse)
-	err := c.cc.Invoke(ctx, "/messaging_pb.SeaweedMessaging/GetTopicConfiguration", in, out, opts...)
-	if err != nil {
-		return nil, err
-	}
-	return out, nil
-}
-
 func (c *seaweedMessagingClient) FindBroker(ctx context.Context, in *FindBrokerRequest, opts ...grpc.CallOption) (*FindBrokerResponse, error) {
 	out := new(FindBrokerResponse)
 	err := c.cc.Invoke(ctx, "/messaging_pb.SeaweedMessaging/FindBroker", in, out, opts...)
@@ -136,11 +42,6 @@ func (c *seaweedMessagingClient) FindBroker(ctx context.Context, in *FindBrokerR
 // All implementations must embed UnimplementedSeaweedMessagingServer
 // for forward compatibility
 type SeaweedMessagingServer interface {
-	Subscribe(SeaweedMessaging_SubscribeServer) error
-	Publish(SeaweedMessaging_PublishServer) error
-	DeleteTopic(context.Context, *DeleteTopicRequest) (*DeleteTopicResponse, error)
-	ConfigureTopic(context.Context, *ConfigureTopicRequest) (*ConfigureTopicResponse, error)
-	GetTopicConfiguration(context.Context, *GetTopicConfigurationRequest) (*GetTopicConfigurationResponse, error)
 	FindBroker(context.Context, *FindBrokerRequest) (*FindBrokerResponse, error)
 	mustEmbedUnimplementedSeaweedMessagingServer()
 }
@@ -149,21 +50,6 @@ type SeaweedMessagingServer interface {
 type UnimplementedSeaweedMessagingServer struct {
 }
 
-func (UnimplementedSeaweedMessagingServer) Subscribe(SeaweedMessaging_SubscribeServer) error {
-	return status.Errorf(codes.Unimplemented, "method Subscribe not implemented")
-}
-func (UnimplementedSeaweedMessagingServer) Publish(SeaweedMessaging_PublishServer) error {
-	return status.Errorf(codes.Unimplemented, "method Publish not implemented")
-}
-func (UnimplementedSeaweedMessagingServer) DeleteTopic(context.Context, *DeleteTopicRequest) (*DeleteTopicResponse, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method DeleteTopic not implemented")
-}
-func (UnimplementedSeaweedMessagingServer) ConfigureTopic(context.Context, *ConfigureTopicRequest) (*ConfigureTopicResponse, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method ConfigureTopic not implemented")
-}
-func (UnimplementedSeaweedMessagingServer) GetTopicConfiguration(context.Context, *GetTopicConfigurationRequest) (*GetTopicConfigurationResponse, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method GetTopicConfiguration not implemented")
-}
 func (UnimplementedSeaweedMessagingServer) FindBroker(context.Context, *FindBrokerRequest) (*FindBrokerResponse, error) {
 	return nil, status.Errorf(codes.Unimplemented, "method FindBroker not implemented")
 }
@@ -180,112 +66,6 @@ func RegisterSeaweedMessagingServer(s grpc.ServiceRegistrar, srv SeaweedMessagin
 	s.RegisterService(&SeaweedMessaging_ServiceDesc, srv)
 }
 
-func _SeaweedMessaging_Subscribe_Handler(srv interface{}, stream grpc.ServerStream) error {
-	return srv.(SeaweedMessagingServer).Subscribe(&seaweedMessagingSubscribeServer{stream})
-}
-
-type SeaweedMessaging_SubscribeServer interface {
-	Send(*BrokerMessage) error
-	Recv() (*SubscriberMessage, error)
-	grpc.ServerStream
-}
-
-type seaweedMessagingSubscribeServer struct {
-	grpc.ServerStream
-}
-
-func (x *seaweedMessagingSubscribeServer) Send(m *BrokerMessage) error {
-	return x.ServerStream.SendMsg(m)
-}
-
-func (x *seaweedMessagingSubscribeServer) Recv() (*SubscriberMessage, error) {
-	m := new(SubscriberMessage)
-	if err := x.ServerStream.RecvMsg(m); err != nil {
-		return nil, err
-	}
-	return m, nil
-}
-
-func _SeaweedMessaging_Publish_Handler(srv interface{}, stream grpc.ServerStream) error {
-	return srv.(SeaweedMessagingServer).Publish(&seaweedMessagingPublishServer{stream})
-}
-
-type SeaweedMessaging_PublishServer interface {
-	Send(*PublishResponse) error
-	Recv() (*PublishRequest, error)
-	grpc.ServerStream
-}
-
-type seaweedMessagingPublishServer struct {
-	grpc.ServerStream
-}
-
-func (x *seaweedMessagingPublishServer) Send(m *PublishResponse) error {
-	return x.ServerStream.SendMsg(m)
-}
-
-func (x *seaweedMessagingPublishServer) Recv() (*PublishRequest, error) {
-	m := new(PublishRequest)
-	if err := x.ServerStream.RecvMsg(m); err != nil {
-		return nil, err
-	}
-	return m, nil
-}
-
-func _SeaweedMessaging_DeleteTopic_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
-	in := new(DeleteTopicRequest)
-	if err := dec(in); err != nil {
-		return nil, err
-	}
-	if interceptor == nil {
-		return srv.(SeaweedMessagingServer).DeleteTopic(ctx, in)
-	}
-	info := &grpc.UnaryServerInfo{
-		Server:     srv,
-		FullMethod: "/messaging_pb.SeaweedMessaging/DeleteTopic",
-	}
-	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
-		return srv.(SeaweedMessagingServer).DeleteTopic(ctx, req.(*DeleteTopicRequest))
-	}
-	return interceptor(ctx, in, info, handler)
-}
-
-func _SeaweedMessaging_ConfigureTopic_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
-	in := new(ConfigureTopicRequest)
-	if err := dec(in); err != nil {
-		return nil, err
-	}
-	if interceptor == nil {
-		return srv.(SeaweedMessagingServer).ConfigureTopic(ctx, in)
-	}
-	info := &grpc.UnaryServerInfo{
-		Server:     srv,
-		FullMethod: "/messaging_pb.SeaweedMessaging/ConfigureTopic",
-	}
-	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
-		return srv.(SeaweedMessagingServer).ConfigureTopic(ctx, req.(*ConfigureTopicRequest))
-	}
-	return interceptor(ctx, in, info, handler)
-}
-
-func _SeaweedMessaging_GetTopicConfiguration_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
-	in := new(GetTopicConfigurationRequest)
-	if err := dec(in); err != nil {
-		return nil, err
-	}
-	if interceptor == nil {
-		return srv.(SeaweedMessagingServer).GetTopicConfiguration(ctx, in)
-	}
-	info := &grpc.UnaryServerInfo{
-		Server:     srv,
-		FullMethod: "/messaging_pb.SeaweedMessaging/GetTopicConfiguration",
-	}
-	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
-		return srv.(SeaweedMessagingServer).GetTopicConfiguration(ctx, req.(*GetTopicConfigurationRequest))
-	}
-	return interceptor(ctx, in, info, handler)
-}
-
 func _SeaweedMessaging_FindBroker_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
 	in := new(FindBrokerRequest)
 	if err := dec(in); err != nil {
@@ -311,36 +91,11 @@ var SeaweedMessaging_ServiceDesc = grpc.ServiceDesc{
 	ServiceName: "messaging_pb.SeaweedMessaging",
 	HandlerType: (*SeaweedMessagingServer)(nil),
 	Methods: []grpc.MethodDesc{
-		{
-			MethodName: "DeleteTopic",
-			Handler:    _SeaweedMessaging_DeleteTopic_Handler,
-		},
-		{
-			MethodName: "ConfigureTopic",
-			Handler:    _SeaweedMessaging_ConfigureTopic_Handler,
-		},
-		{
-			MethodName: "GetTopicConfiguration",
-			Handler:    _SeaweedMessaging_GetTopicConfiguration_Handler,
-		},
 		{
 			MethodName: "FindBroker",
 			Handler:    _SeaweedMessaging_FindBroker_Handler,
 		},
 	},
-	Streams: []grpc.StreamDesc{
-		{
-			StreamName:    "Subscribe",
-			Handler:       _SeaweedMessaging_Subscribe_Handler,
-			ServerStreams: true,
-			ClientStreams: true,
-		},
-		{
-			StreamName:    "Publish",
-			Handler:       _SeaweedMessaging_Publish_Handler,
-			ServerStreams: true,
-			ClientStreams: true,
-		},
-	},
+	Streams:  []grpc.StreamDesc{},
 	Metadata: "mq.proto",
 }
diff --git a/weed/server/filer_grpc_server_admin.go b/weed/server/filer_grpc_server_admin.go
index df5b8fa1e..21fd8cc19 100644
--- a/weed/server/filer_grpc_server_admin.go
+++ b/weed/server/filer_grpc_server_admin.go
@@ -104,75 +104,3 @@ func (fs *FilerServer) GetFilerConfiguration(ctx context.Context, req *filer_pb.
 
 	return t, nil
 }
-
-func (fs *FilerServer) KeepConnected(stream filer_pb.SeaweedFiler_KeepConnectedServer) error {
-
-	req, err := stream.Recv()
-	if err != nil {
-		return err
-	}
-
-	clientName := util.JoinHostPort(req.Name, int(req.GrpcPort))
-	m := make(map[string]bool)
-	for _, tp := range req.Resources {
-		m[tp] = true
-	}
-	fs.brokersLock.Lock()
-	fs.brokers[clientName] = m
-	glog.V(0).Infof("+ broker %v", clientName)
-	fs.brokersLock.Unlock()
-
-	defer func() {
-		fs.brokersLock.Lock()
-		delete(fs.brokers, clientName)
-		glog.V(0).Infof("- broker %v: %v", clientName, err)
-		fs.brokersLock.Unlock()
-	}()
-
-	for {
-		if err := stream.Send(&filer_pb.KeepConnectedResponse{}); err != nil {
-			glog.V(0).Infof("send broker %v: %+v", clientName, err)
-			return err
-		}
-		// println("replied")
-
-		if _, err := stream.Recv(); err != nil {
-			glog.V(0).Infof("recv broker %v: %v", clientName, err)
-			return err
-		}
-		// println("received")
-	}
-
-}
-
-func (fs *FilerServer) LocateBroker(ctx context.Context, req *filer_pb.LocateBrokerRequest) (resp *filer_pb.LocateBrokerResponse, err error) {
-
-	resp = &filer_pb.LocateBrokerResponse{}
-
-	fs.brokersLock.Lock()
-	defer fs.brokersLock.Unlock()
-
-	var localBrokers []*filer_pb.LocateBrokerResponse_Resource
-
-	for b, m := range fs.brokers {
-		if _, found := m[req.Resource]; found {
-			resp.Found = true
-			resp.Resources = []*filer_pb.LocateBrokerResponse_Resource{
-				{
-					GrpcAddresses: b,
-					ResourceCount: int32(len(m)),
-				},
-			}
-			return
-		}
-		localBrokers = append(localBrokers, &filer_pb.LocateBrokerResponse_Resource{
-			GrpcAddresses: b,
-			ResourceCount: int32(len(m)),
-		})
-	}
-
-	resp.Resources = localBrokers
-
-	return resp, nil
-
-}
diff --git a/weed/server/filer_server.go b/weed/server/filer_server.go
index 6bf0261ee..97282c471 100644
--- a/weed/server/filer_server.go
+++ b/weed/server/filer_server.go
@@ -90,9 +90,6 @@ type FilerServer struct {
 	knownListenersLock sync.Mutex
 	knownListeners     map[int32]struct{}
 
-	brokers     map[string]map[string]bool
-	brokersLock sync.Mutex
-
 	inFlightDataSize      int64
 	inFlightDataLimitCond *sync.Cond
 }
@@ -112,7 +109,6 @@ func NewFilerServer(defaultMux, readonlyMux *http.ServeMux, option *FilerOption)
 		option:                option,
 		grpcDialOption:        security.LoadClientTLS(util.GetViper(), "grpc.filer"),
 		knownListeners:        make(map[int32]struct{}),
-		brokers:               make(map[string]map[string]bool),
 		inFlightDataLimitCond: sync.NewCond(new(sync.Mutex)),
 	}
 	fs.listenersCond = sync.NewCond(&fs.listenersLock)

From ef93869009f12f9c7af4876dd4f9a5813ba90dec Mon Sep 17 00:00:00 2001
From: chrislu <chris.lu@gmail.com>
Date: Sun, 10 Jul 2022 12:11:37 -0700
Subject: [PATCH 10/17] clean up

---
 weed/cluster/cluster.go                       |  22 ++--
 weed/command/mq_broker.go                     |  27 +++--
 weed/command/server.go                        |   2 +
 weed/mq/broker/brokder_grpc_admin.go          |  10 ++
 weed/mq/broker/consistent_distribution.go     |  38 ------
 .../mq/broker/consistent_distribution_test.go |  32 -----
 weed/pb/mq.proto                              |   9 +-
 weed/pb/mq_pb/mq.pb.go                        | 112 +++++++-----------
 weed/pb/mq_pb/mq_grpc.pb.go                   |  28 ++---
 9 files changed, 97 insertions(+), 183 deletions(-)
 create mode 100644 weed/mq/broker/brokder_grpc_admin.go
 delete mode 100644 weed/mq/broker/consistent_distribution.go
 delete mode 100644 weed/mq/broker/consistent_distribution_test.go

diff --git a/weed/cluster/cluster.go b/weed/cluster/cluster.go
index 0d9886911..445b89a36 100644
--- a/weed/cluster/cluster.go
+++ b/weed/cluster/cluster.go
@@ -17,7 +17,7 @@ const (
 
 type FilerGroup string
 type Filers struct {
-	filers  map[pb.ServerAddress]*ClusterNode
+	members map[pb.ServerAddress]*ClusterNode
 	leaders *Leaders
 }
 type Leaders struct {
@@ -60,7 +60,7 @@ func (cluster *Cluster) getFilers(filerGroup FilerGroup, createIfNotFound bool)
 	filers, found := cluster.filerGroup2filers[filerGroup]
 	if !found && createIfNotFound {
 		filers = &Filers{
-			filers:  make(map[pb.ServerAddress]*ClusterNode),
+			members: make(map[pb.ServerAddress]*ClusterNode),
 			leaders: &Leaders{},
 		}
 		cluster.filerGroup2filers[filerGroup] = filers
@@ -75,11 +75,11 @@ func (cluster *Cluster) AddClusterNode(ns, nodeType string, dataCenter DataCente
 		cluster.filersLock.Lock()
 		defer cluster.filersLock.Unlock()
 		filers := cluster.getFilers(filerGroup, true)
-		if existingNode, found := filers.filers[address]; found {
+		if existingNode, found := filers.members[address]; found {
 			existingNode.counter++
 			return nil
 		}
-		filers.filers[address] = &ClusterNode{
+		filers.members[address] = &ClusterNode{
 			Address:    address,
 			Version:    version,
 			counter:    1,
@@ -87,7 +87,7 @@ func (cluster *Cluster) AddClusterNode(ns, nodeType string, dataCenter DataCente
 			DataCenter: dataCenter,
 			Rack:       rack,
 		}
-		return cluster.ensureFilerLeaders(filers, true, filerGroup, nodeType, address)
+		return ensureFilerLeaders(filers, true, filerGroup, nodeType, address)
 	case BrokerType:
 		cluster.brokersLock.Lock()
 		defer cluster.brokersLock.Unlock()
@@ -151,13 +151,13 @@ func (cluster *Cluster) RemoveClusterNode(ns string, nodeType string, dataCenter
 		if filers == nil {
 			return nil
 		}
-		if existingNode, found := filers.filers[address]; !found {
+		if existingNode, found := filers.members[address]; !found {
 			return nil
 		} else {
 			existingNode.counter--
 			if existingNode.counter <= 0 {
-				delete(filers.filers, address)
-				return cluster.ensureFilerLeaders(filers, false, filerGroup, nodeType, address)
+				delete(filers.members, address)
+				return ensureFilerLeaders(filers, false, filerGroup, nodeType, address)
 			}
 		}
 	case BrokerType:
@@ -215,7 +215,7 @@ func (cluster *Cluster) ListClusterNode(filerGroup FilerGroup, nodeType string)
 		if filers == nil {
 			return
 		}
-		for _, node := range filers.filers {
+		for _, node := range filers.members {
 			nodes = append(nodes, node)
 		}
 	case BrokerType:
@@ -241,7 +241,7 @@ func (cluster *Cluster) IsOneLeader(filerGroup FilerGroup, address pb.ServerAddr
 	return filers.leaders.isOneLeader(address)
 }
 
-func (cluster *Cluster) ensureFilerLeaders(filers *Filers, isAdd bool, filerGroup FilerGroup, nodeType string, address pb.ServerAddress) (result []*master_pb.KeepConnectedResponse) {
+func ensureFilerLeaders(filers *Filers, isAdd bool, filerGroup FilerGroup, nodeType string, address pb.ServerAddress) (result []*master_pb.KeepConnectedResponse) {
 	if isAdd {
 		if filers.leaders.addLeaderIfVacant(address) {
 			// has added the address as one leader
@@ -282,7 +282,7 @@ func (cluster *Cluster) ensureFilerLeaders(filers *Filers, isAdd bool, filerGrou
 			var shortestDuration int64 = math.MaxInt64
 			now := time.Now()
 			var candidateAddress pb.ServerAddress
-			for _, node := range filers.filers {
+			for _, node := range filers.members {
 				if filers.leaders.isOneLeader(node.Address) {
 					continue
 				}
diff --git a/weed/command/mq_broker.go b/weed/command/mq_broker.go
index 65f49e673..cce77bf8e 100644
--- a/weed/command/mq_broker.go
+++ b/weed/command/mq_broker.go
@@ -23,20 +23,21 @@ var (
 )
 
 type MessageQueueBrokerOptions struct {
-	masters    *string
-	filerGroup *string
-	filer      *string
-	ip         *string
-	port       *int
-	dataCenter *string
-	rack       *string
-	cpuprofile *string
-	memprofile *string
+	masters       map[string]pb.ServerAddress
+	mastersString *string
+	filerGroup    *string
+	filer         *string
+	ip            *string
+	port          *int
+	dataCenter    *string
+	rack          *string
+	cpuprofile    *string
+	memprofile    *string
 }
 
 func init() {
 	cmdMqBroker.Run = runMqBroker // break init cycle
-	mqBrokerStandaloneOptions.masters = cmdMqBroker.Flag.String("master", "localhost:9333", "comma-separated master servers")
+	mqBrokerStandaloneOptions.mastersString = cmdMqBroker.Flag.String("master", "localhost:9333", "comma-separated master servers")
 	mqBrokerStandaloneOptions.filer = cmdMqBroker.Flag.String("filer", "localhost:8888", "filer server address")
 	mqBrokerStandaloneOptions.filerGroup = cmdMqBroker.Flag.String("filerGroup", "", "share metadata with other filers in the same filerGroup")
 	mqBrokerStandaloneOptions.ip = cmdMqBroker.Flag.String("ip", util.DetectedHostAddress(), "broker host address")
@@ -48,7 +49,7 @@ func init() {
 }
 
 var cmdMqBroker = &Command{
-	UsageLine: "mq.broker [-port=17777] [-filer=<ip:port>]",
+	UsageLine: "mq.broker [-port=17777] [-master=<ip:port>]",
 	Short:     "start a message queue broker",
 	Long: `start a message queue broker
 
@@ -62,6 +63,8 @@ func runMqBroker(cmd *Command, args []string) bool {
 
 	util.LoadConfiguration("security", false)
 
+	mqBrokerStandaloneOptions.masters = pb.ServerAddresses(*mqBrokerStandaloneOptions.mastersString).ToAddressMap()
+
 	return mqBrokerStandaloneOptions.startQueueServer()
 
 }
@@ -94,7 +97,7 @@ func (mqBrokerOpt *MessageQueueBrokerOptions) startQueueServer() bool {
 	}
 
 	qs, err := broker.NewMessageBroker(&broker.MessageQueueBrokerOption{
-		Masters:            pb.ServerAddresses(*mqBrokerOpt.masters).ToAddressMap(),
+		Masters:            mqBrokerOpt.masters,
 		FilerGroup:         *mqBrokerOpt.filerGroup,
 		DataCenter:         *mqBrokerOpt.dataCenter,
 		Rack:               *mqBrokerOpt.rack,
diff --git a/weed/command/server.go b/weed/command/server.go
index 9e1cea07d..04b07ed51 100644
--- a/weed/command/server.go
+++ b/weed/command/server.go
@@ -209,6 +209,8 @@ func runServer(cmd *Command, args []string) bool {
 	serverOptions.v.dataCenter = serverDataCenter
 	serverOptions.v.rack = serverRack
 	mqBrokerOptions.ip = serverIp
+	mqBrokerOptions.masters = filerOptions.masters
+	mqBrokerOptions.filerGroup = filerOptions.filerGroup
 
 	// serverOptions.v.pulseSeconds = pulseSeconds
 	// masterOptions.pulseSeconds = pulseSeconds
diff --git a/weed/mq/broker/brokder_grpc_admin.go b/weed/mq/broker/brokder_grpc_admin.go
new file mode 100644
index 000000000..e8914cbed
--- /dev/null
+++ b/weed/mq/broker/brokder_grpc_admin.go
@@ -0,0 +1,10 @@
+package broker
+
+import (
+	"context"
+	"github.com/chrislusf/seaweedfs/weed/pb/mq_pb"
+)
+
+func (broker *MessageQueueBroker) FindBrokerLeader(c context.Context, request *mq_pb.FindBrokerLeaderRequest) (*mq_pb.FindBrokerLeaderResponse, error) {
+	panic("implement me")
+}
diff --git a/weed/mq/broker/consistent_distribution.go b/weed/mq/broker/consistent_distribution.go
deleted file mode 100644
index 465a2a8f2..000000000
--- a/weed/mq/broker/consistent_distribution.go
+++ /dev/null
@@ -1,38 +0,0 @@
-package broker
-
-import (
-	"github.com/buraksezer/consistent"
-	"github.com/cespare/xxhash"
-)
-
-type Member string
-
-func (m Member) String() string {
-	return string(m)
-}
-
-type hasher struct{}
-
-func (h hasher) Sum64(data []byte) uint64 {
-	return xxhash.Sum64(data)
-}
-
-func PickMember(members []string, key []byte) string {
-	cfg := consistent.Config{
-		PartitionCount:    9791,
-		ReplicationFactor: 2,
-		Load:              1.25,
-		Hasher:            hasher{},
-	}
-
-	cmembers := []consistent.Member{}
-	for _, m := range members {
-		cmembers = append(cmembers, Member(m))
-	}
-
-	c := consistent.New(cmembers, cfg)
-
-	m := c.LocateKey(key)
-
-	return m.String()
-}
diff --git a/weed/mq/broker/consistent_distribution_test.go b/weed/mq/broker/consistent_distribution_test.go
deleted file mode 100644
index f58fe4e0e..000000000
--- a/weed/mq/broker/consistent_distribution_test.go
+++ /dev/null
@@ -1,32 +0,0 @@
-package broker
-
-import (
-	"fmt"
-	"testing"
-)
-
-func TestPickMember(t *testing.T) {
-
-	servers := []string{
-		"s1:port",
-		"s2:port",
-		"s3:port",
-		"s5:port",
-		"s4:port",
-	}
-
-	total := 1000
-
-	distribution := make(map[string]int)
-	for i := 0; i < total; i++ {
-		tp := fmt.Sprintf("tp:%2d", i)
-		m := PickMember(servers, []byte(tp))
-		// println(tp, "=>", m)
-		distribution[m]++
-	}
-
-	for member, count := range distribution {
-		fmt.Printf("member: %s, key count: %d load=%.2f\n", member, count, float64(count*100)/float64(total/len(servers)))
-	}
-
-}
diff --git a/weed/pb/mq.proto b/weed/pb/mq.proto
index 44291c173..47bd1775e 100644
--- a/weed/pb/mq.proto
+++ b/weed/pb/mq.proto
@@ -10,19 +10,16 @@ option java_outer_classname = "MessagQueueProto";
 
 service SeaweedMessaging {
 
-    rpc FindBroker (FindBrokerRequest) returns (FindBrokerResponse) {
+    rpc FindBrokerLeader (FindBrokerLeader) returns (FindBrokerLeaderResponse) {
     }
 
 }
 
 //////////////////////////////////////////////////
 
-message FindBrokerRequest {
-    string namespace = 1;
-    string topic = 2;
-    int32 parition = 3;
+message FindBrokerLeaderRequest {
 }
 
-message FindBrokerResponse {
+message FindBrokerLeaderResponse {
     string broker = 1;
 }
diff --git a/weed/pb/mq_pb/mq.pb.go b/weed/pb/mq_pb/mq.pb.go
index dac27c959..a5d63c8d9 100644
--- a/weed/pb/mq_pb/mq.pb.go
+++ b/weed/pb/mq_pb/mq.pb.go
@@ -20,18 +20,14 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-type FindBrokerRequest struct {
+type FindBrokerLeaderRequest struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
-
-	Namespace string `protobuf:"bytes,1,opt,name=namespace,proto3" json:"namespace,omitempty"`
-	Topic     string `protobuf:"bytes,2,opt,name=topic,proto3" json:"topic,omitempty"`
-	Parition  int32  `protobuf:"varint,3,opt,name=parition,proto3" json:"parition,omitempty"`
 }
 
-func (x *FindBrokerRequest) Reset() {
-	*x = FindBrokerRequest{}
+func (x *FindBrokerLeaderRequest) Reset() {
+	*x = FindBrokerLeaderRequest{}
 	if protoimpl.UnsafeEnabled {
 		mi := &file_mq_proto_msgTypes[0]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
@@ -39,13 +35,13 @@ func (x *FindBrokerRequest) Reset() {
 	}
 }
 
-func (x *FindBrokerRequest) String() string {
+func (x *FindBrokerLeaderRequest) String() string {
 	return protoimpl.X.MessageStringOf(x)
 }
 
-func (*FindBrokerRequest) ProtoMessage() {}
+func (*FindBrokerLeaderRequest) ProtoMessage() {}
 
-func (x *FindBrokerRequest) ProtoReflect() protoreflect.Message {
+func (x *FindBrokerLeaderRequest) ProtoReflect() protoreflect.Message {
 	mi := &file_mq_proto_msgTypes[0]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
@@ -57,33 +53,12 @@ func (x *FindBrokerRequest) ProtoReflect() protoreflect.Message {
 	return mi.MessageOf(x)
 }
 
-// Deprecated: Use FindBrokerRequest.ProtoReflect.Descriptor instead.
-func (*FindBrokerRequest) Descriptor() ([]byte, []int) {
+// Deprecated: Use FindBrokerLeaderRequest.ProtoReflect.Descriptor instead.
+func (*FindBrokerLeaderRequest) Descriptor() ([]byte, []int) {
 	return file_mq_proto_rawDescGZIP(), []int{0}
 }
 
-func (x *FindBrokerRequest) GetNamespace() string {
-	if x != nil {
-		return x.Namespace
-	}
-	return ""
-}
-
-func (x *FindBrokerRequest) GetTopic() string {
-	if x != nil {
-		return x.Topic
-	}
-	return ""
-}
-
-func (x *FindBrokerRequest) GetParition() int32 {
-	if x != nil {
-		return x.Parition
-	}
-	return 0
-}
-
-type FindBrokerResponse struct {
+type FindBrokerLeaderResponse struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
@@ -91,8 +66,8 @@ type FindBrokerResponse struct {
 	Broker string `protobuf:"bytes,1,opt,name=broker,proto3" json:"broker,omitempty"`
 }
 
-func (x *FindBrokerResponse) Reset() {
-	*x = FindBrokerResponse{}
+func (x *FindBrokerLeaderResponse) Reset() {
+	*x = FindBrokerLeaderResponse{}
 	if protoimpl.UnsafeEnabled {
 		mi := &file_mq_proto_msgTypes[1]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
@@ -100,13 +75,13 @@ func (x *FindBrokerResponse) Reset() {
 	}
 }
 
-func (x *FindBrokerResponse) String() string {
+func (x *FindBrokerLeaderResponse) String() string {
 	return protoimpl.X.MessageStringOf(x)
 }
 
-func (*FindBrokerResponse) ProtoMessage() {}
+func (*FindBrokerLeaderResponse) ProtoMessage() {}
 
-func (x *FindBrokerResponse) ProtoReflect() protoreflect.Message {
+func (x *FindBrokerLeaderResponse) ProtoReflect() protoreflect.Message {
 	mi := &file_mq_proto_msgTypes[1]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
@@ -118,12 +93,12 @@ func (x *FindBrokerResponse) ProtoReflect() protoreflect.Message {
 	return mi.MessageOf(x)
 }
 
-// Deprecated: Use FindBrokerResponse.ProtoReflect.Descriptor instead.
-func (*FindBrokerResponse) Descriptor() ([]byte, []int) {
+// Deprecated: Use FindBrokerLeaderResponse.ProtoReflect.Descriptor instead.
+func (*FindBrokerLeaderResponse) Descriptor() ([]byte, []int) {
 	return file_mq_proto_rawDescGZIP(), []int{1}
 }
 
-func (x *FindBrokerResponse) GetBroker() string {
+func (x *FindBrokerLeaderResponse) GetBroker() string {
 	if x != nil {
 		return x.Broker
 	}
@@ -134,28 +109,25 @@ var File_mq_proto protoreflect.FileDescriptor
 
 var file_mq_proto_rawDesc = []byte{
 	0x0a, 0x08, 0x6d, 0x71, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x12, 0x0c, 0x6d, 0x65, 0x73, 0x73,
-	0x61, 0x67, 0x69, 0x6e, 0x67, 0x5f, 0x70, 0x62, 0x22, 0x63, 0x0a, 0x11, 0x46, 0x69, 0x6e, 0x64,
-	0x42, 0x72, 0x6f, 0x6b, 0x65, 0x72, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x12, 0x1c, 0x0a,
-	0x09, 0x6e, 0x61, 0x6d, 0x65, 0x73, 0x70, 0x61, 0x63, 0x65, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09,
-	0x52, 0x09, 0x6e, 0x61, 0x6d, 0x65, 0x73, 0x70, 0x61, 0x63, 0x65, 0x12, 0x14, 0x0a, 0x05, 0x74,
-	0x6f, 0x70, 0x69, 0x63, 0x18, 0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x05, 0x74, 0x6f, 0x70, 0x69,
-	0x63, 0x12, 0x1a, 0x0a, 0x08, 0x70, 0x61, 0x72, 0x69, 0x74, 0x69, 0x6f, 0x6e, 0x18, 0x03, 0x20,
-	0x01, 0x28, 0x05, 0x52, 0x08, 0x70, 0x61, 0x72, 0x69, 0x74, 0x69, 0x6f, 0x6e, 0x22, 0x2c, 0x0a,
-	0x12, 0x46, 0x69, 0x6e, 0x64, 0x42, 0x72, 0x6f, 0x6b, 0x65, 0x72, 0x52, 0x65, 0x73, 0x70, 0x6f,
-	0x6e, 0x73, 0x65, 0x12, 0x16, 0x0a, 0x06, 0x62, 0x72, 0x6f, 0x6b, 0x65, 0x72, 0x18, 0x01, 0x20,
-	0x01, 0x28, 0x09, 0x52, 0x06, 0x62, 0x72, 0x6f, 0x6b, 0x65, 0x72, 0x32, 0x65, 0x0a, 0x10, 0x53,
-	0x65, 0x61, 0x77, 0x65, 0x65, 0x64, 0x4d, 0x65, 0x73, 0x73, 0x61, 0x67, 0x69, 0x6e, 0x67, 0x12,
-	0x51, 0x0a, 0x0a, 0x46, 0x69, 0x6e, 0x64, 0x42, 0x72, 0x6f, 0x6b, 0x65, 0x72, 0x12, 0x1f, 0x2e,
-	0x6d, 0x65, 0x73, 0x73, 0x61, 0x67, 0x69, 0x6e, 0x67, 0x5f, 0x70, 0x62, 0x2e, 0x46, 0x69, 0x6e,
-	0x64, 0x42, 0x72, 0x6f, 0x6b, 0x65, 0x72, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x20,
-	0x2e, 0x6d, 0x65, 0x73, 0x73, 0x61, 0x67, 0x69, 0x6e, 0x67, 0x5f, 0x70, 0x62, 0x2e, 0x46, 0x69,
-	0x6e, 0x64, 0x42, 0x72, 0x6f, 0x6b, 0x65, 0x72, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65,
-	0x22, 0x00, 0x42, 0x4e, 0x0a, 0x0c, 0x73, 0x65, 0x61, 0x77, 0x65, 0x65, 0x64, 0x66, 0x73, 0x2e,
-	0x6d, 0x71, 0x42, 0x10, 0x4d, 0x65, 0x73, 0x73, 0x61, 0x67, 0x51, 0x75, 0x65, 0x75, 0x65, 0x50,
-	0x72, 0x6f, 0x74, 0x6f, 0x5a, 0x2c, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d,
-	0x2f, 0x63, 0x68, 0x72, 0x69, 0x73, 0x6c, 0x75, 0x73, 0x66, 0x2f, 0x73, 0x65, 0x61, 0x77, 0x65,
-	0x65, 0x64, 0x66, 0x73, 0x2f, 0x77, 0x65, 0x65, 0x64, 0x2f, 0x70, 0x62, 0x2f, 0x6d, 0x71, 0x5f,
-	0x70, 0x62, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
+	0x61, 0x67, 0x69, 0x6e, 0x67, 0x5f, 0x70, 0x62, 0x22, 0x19, 0x0a, 0x17, 0x46, 0x69, 0x6e, 0x64,
+	0x42, 0x72, 0x6f, 0x6b, 0x65, 0x72, 0x4c, 0x65, 0x61, 0x64, 0x65, 0x72, 0x52, 0x65, 0x71, 0x75,
+	0x65, 0x73, 0x74, 0x22, 0x32, 0x0a, 0x18, 0x46, 0x69, 0x6e, 0x64, 0x42, 0x72, 0x6f, 0x6b, 0x65,
+	0x72, 0x4c, 0x65, 0x61, 0x64, 0x65, 0x72, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x12,
+	0x16, 0x0a, 0x06, 0x62, 0x72, 0x6f, 0x6b, 0x65, 0x72, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52,
+	0x06, 0x62, 0x72, 0x6f, 0x6b, 0x65, 0x72, 0x32, 0x77, 0x0a, 0x10, 0x53, 0x65, 0x61, 0x77, 0x65,
+	0x65, 0x64, 0x4d, 0x65, 0x73, 0x73, 0x61, 0x67, 0x69, 0x6e, 0x67, 0x12, 0x63, 0x0a, 0x10, 0x46,
+	0x69, 0x6e, 0x64, 0x42, 0x72, 0x6f, 0x6b, 0x65, 0x72, 0x4c, 0x65, 0x61, 0x64, 0x65, 0x72, 0x12,
+	0x25, 0x2e, 0x6d, 0x65, 0x73, 0x73, 0x61, 0x67, 0x69, 0x6e, 0x67, 0x5f, 0x70, 0x62, 0x2e, 0x46,
+	0x69, 0x6e, 0x64, 0x42, 0x72, 0x6f, 0x6b, 0x65, 0x72, 0x4c, 0x65, 0x61, 0x64, 0x65, 0x72, 0x52,
+	0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x26, 0x2e, 0x6d, 0x65, 0x73, 0x73, 0x61, 0x67, 0x69,
+	0x6e, 0x67, 0x5f, 0x70, 0x62, 0x2e, 0x46, 0x69, 0x6e, 0x64, 0x42, 0x72, 0x6f, 0x6b, 0x65, 0x72,
+	0x4c, 0x65, 0x61, 0x64, 0x65, 0x72, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x22, 0x00,
+	0x42, 0x4e, 0x0a, 0x0c, 0x73, 0x65, 0x61, 0x77, 0x65, 0x65, 0x64, 0x66, 0x73, 0x2e, 0x6d, 0x71,
+	0x42, 0x10, 0x4d, 0x65, 0x73, 0x73, 0x61, 0x67, 0x51, 0x75, 0x65, 0x75, 0x65, 0x50, 0x72, 0x6f,
+	0x74, 0x6f, 0x5a, 0x2c, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x63,
+	0x68, 0x72, 0x69, 0x73, 0x6c, 0x75, 0x73, 0x66, 0x2f, 0x73, 0x65, 0x61, 0x77, 0x65, 0x65, 0x64,
+	0x66, 0x73, 0x2f, 0x77, 0x65, 0x65, 0x64, 0x2f, 0x70, 0x62, 0x2f, 0x6d, 0x71, 0x5f, 0x70, 0x62,
+	0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
@@ -172,12 +144,12 @@ func file_mq_proto_rawDescGZIP() []byte {
 
 var file_mq_proto_msgTypes = make([]protoimpl.MessageInfo, 2)
 var file_mq_proto_goTypes = []interface{}{
-	(*FindBrokerRequest)(nil),  // 0: messaging_pb.FindBrokerRequest
-	(*FindBrokerResponse)(nil), // 1: messaging_pb.FindBrokerResponse
+	(*FindBrokerLeaderRequest)(nil),  // 0: messaging_pb.FindBrokerLeaderRequest
+	(*FindBrokerLeaderResponse)(nil), // 1: messaging_pb.FindBrokerLeaderResponse
 }
 var file_mq_proto_depIdxs = []int32{
-	0, // 0: messaging_pb.SeaweedMessaging.FindBroker:input_type -> messaging_pb.FindBrokerRequest
-	1, // 1: messaging_pb.SeaweedMessaging.FindBroker:output_type -> messaging_pb.FindBrokerResponse
+	0, // 0: messaging_pb.SeaweedMessaging.FindBrokerLeader:input_type -> messaging_pb.FindBrokerLeaderRequest
+	1, // 1: messaging_pb.SeaweedMessaging.FindBrokerLeader:output_type -> messaging_pb.FindBrokerLeaderResponse
 	1, // [1:2] is the sub-list for method output_type
 	0, // [0:1] is the sub-list for method input_type
 	0, // [0:0] is the sub-list for extension type_name
@@ -192,7 +164,7 @@ func file_mq_proto_init() {
 	}
 	if !protoimpl.UnsafeEnabled {
 		file_mq_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*FindBrokerRequest); i {
+			switch v := v.(*FindBrokerLeaderRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -204,7 +176,7 @@ func file_mq_proto_init() {
 			}
 		}
 		file_mq_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*FindBrokerResponse); i {
+			switch v := v.(*FindBrokerLeaderResponse); i {
 			case 0:
 				return &v.state
 			case 1:
diff --git a/weed/pb/mq_pb/mq_grpc.pb.go b/weed/pb/mq_pb/mq_grpc.pb.go
index 60258e23d..5851632cc 100644
--- a/weed/pb/mq_pb/mq_grpc.pb.go
+++ b/weed/pb/mq_pb/mq_grpc.pb.go
@@ -18,7 +18,7 @@ const _ = grpc.SupportPackageIsVersion7
 //
 // For semantics around ctx use and closing/ending streaming RPCs, please refer to https://pkg.go.dev/google.golang.org/grpc/?tab=doc#ClientConn.NewStream.
 type SeaweedMessagingClient interface {
-	FindBroker(ctx context.Context, in *FindBrokerRequest, opts ...grpc.CallOption) (*FindBrokerResponse, error)
+	FindBrokerLeader(ctx context.Context, in *FindBrokerLeaderRequest, opts ...grpc.CallOption) (*FindBrokerLeaderResponse, error)
 }
 
 type seaweedMessagingClient struct {
@@ -29,9 +29,9 @@ func NewSeaweedMessagingClient(cc grpc.ClientConnInterface) SeaweedMessagingClie
 	return &seaweedMessagingClient{cc}
 }
 
-func (c *seaweedMessagingClient) FindBroker(ctx context.Context, in *FindBrokerRequest, opts ...grpc.CallOption) (*FindBrokerResponse, error) {
-	out := new(FindBrokerResponse)
-	err := c.cc.Invoke(ctx, "/messaging_pb.SeaweedMessaging/FindBroker", in, out, opts...)
+func (c *seaweedMessagingClient) FindBrokerLeader(ctx context.Context, in *FindBrokerLeaderRequest, opts ...grpc.CallOption) (*FindBrokerLeaderResponse, error) {
+	out := new(FindBrokerLeaderResponse)
+	err := c.cc.Invoke(ctx, "/messaging_pb.SeaweedMessaging/FindBrokerLeader", in, out, opts...)
 	if err != nil {
 		return nil, err
 	}
@@ -42,7 +42,7 @@ func (c *seaweedMessagingClient) FindBroker(ctx context.Context, in *FindBrokerR
 // All implementations must embed UnimplementedSeaweedMessagingServer
 // for forward compatibility
 type SeaweedMessagingServer interface {
-	FindBroker(context.Context, *FindBrokerRequest) (*FindBrokerResponse, error)
+	FindBrokerLeader(context.Context, *FindBrokerLeaderRequest) (*FindBrokerLeaderResponse, error)
 	mustEmbedUnimplementedSeaweedMessagingServer()
 }
 
@@ -50,8 +50,8 @@ type SeaweedMessagingServer interface {
 type UnimplementedSeaweedMessagingServer struct {
 }
 
-func (UnimplementedSeaweedMessagingServer) FindBroker(context.Context, *FindBrokerRequest) (*FindBrokerResponse, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method FindBroker not implemented")
+func (UnimplementedSeaweedMessagingServer) FindBrokerLeader(context.Context, *FindBrokerLeaderRequest) (*FindBrokerLeaderResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method FindBrokerLeader not implemented")
 }
 func (UnimplementedSeaweedMessagingServer) mustEmbedUnimplementedSeaweedMessagingServer() {}
 
@@ -66,20 +66,20 @@ func RegisterSeaweedMessagingServer(s grpc.ServiceRegistrar, srv SeaweedMessagin
 	s.RegisterService(&SeaweedMessaging_ServiceDesc, srv)
 }
 
-func _SeaweedMessaging_FindBroker_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
-	in := new(FindBrokerRequest)
+func _SeaweedMessaging_FindBrokerLeader_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(FindBrokerLeaderRequest)
 	if err := dec(in); err != nil {
 		return nil, err
 	}
 	if interceptor == nil {
-		return srv.(SeaweedMessagingServer).FindBroker(ctx, in)
+		return srv.(SeaweedMessagingServer).FindBrokerLeader(ctx, in)
 	}
 	info := &grpc.UnaryServerInfo{
 		Server:     srv,
-		FullMethod: "/messaging_pb.SeaweedMessaging/FindBroker",
+		FullMethod: "/messaging_pb.SeaweedMessaging/FindBrokerLeader",
 	}
 	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
-		return srv.(SeaweedMessagingServer).FindBroker(ctx, req.(*FindBrokerRequest))
+		return srv.(SeaweedMessagingServer).FindBrokerLeader(ctx, req.(*FindBrokerLeaderRequest))
 	}
 	return interceptor(ctx, in, info, handler)
 }
@@ -92,8 +92,8 @@ var SeaweedMessaging_ServiceDesc = grpc.ServiceDesc{
 	HandlerType: (*SeaweedMessagingServer)(nil),
 	Methods: []grpc.MethodDesc{
 		{
-			MethodName: "FindBroker",
-			Handler:    _SeaweedMessaging_FindBroker_Handler,
+			MethodName: "FindBrokerLeader",
+			Handler:    _SeaweedMessaging_FindBrokerLeader_Handler,
 		},
 	},
 	Streams:  []grpc.StreamDesc{},

From 24291e23eb91db9b830bc93462bc8af347109992 Mon Sep 17 00:00:00 2001
From: chrislu <chris.lu@gmail.com>
Date: Sun, 10 Jul 2022 14:01:53 -0700
Subject: [PATCH 11/17] refactor

---
 weed/cluster/cluster.go                   | 295 ++++++++++------------
 weed/cluster/cluster_test.go              |  16 +-
 weed/server/master_grpc_server.go         |   2 +-
 weed/server/master_grpc_server_cluster.go |   8 +-
 weed/server/master_server.go              |   2 +-
 5 files changed, 147 insertions(+), 176 deletions(-)

diff --git a/weed/cluster/cluster.go b/weed/cluster/cluster.go
index 445b89a36..8496a7f6e 100644
--- a/weed/cluster/cluster.go
+++ b/weed/cluster/cluster.go
@@ -15,24 +15,13 @@ const (
 	BrokerType       = "broker"
 )
 
-type FilerGroup string
-type Filers struct {
-	members map[pb.ServerAddress]*ClusterNode
-	leaders *Leaders
-}
-type Leaders struct {
-	leaders [3]pb.ServerAddress
-}
-
+type FilerGroupName string
 type DataCenter string
 type Rack string
-type DataCenterBrokers struct {
-	brokers map[Rack]*RackBrokers
-}
-type RackBrokers struct {
-	brokers map[pb.ServerAddress]*ClusterNode
-}
 
+type Leaders struct {
+	leaders [3]pb.ServerAddress
+}
 type ClusterNode struct {
 	Address    pb.ServerAddress
 	Version    string
@@ -41,92 +30,131 @@ type ClusterNode struct {
 	DataCenter DataCenter
 	Rack       Rack
 }
-
+type GroupMembers struct {
+	members map[pb.ServerAddress]*ClusterNode
+	leaders *Leaders
+}
+type ClusterNodeGroups struct {
+	groupMembers map[FilerGroupName]*GroupMembers
+	sync.RWMutex
+}
 type Cluster struct {
-	filerGroup2filers map[FilerGroup]*Filers
-	filersLock        sync.RWMutex
-	brokers           map[DataCenter]*DataCenterBrokers
-	brokersLock       sync.RWMutex
+	filerGroups  *ClusterNodeGroups
+	brokerGroups *ClusterNodeGroups
 }
 
-func NewCluster() *Cluster {
-	return &Cluster{
-		filerGroup2filers: make(map[FilerGroup]*Filers),
-		brokers:           make(map[DataCenter]*DataCenterBrokers),
+func newClusterNodeGroups() *ClusterNodeGroups {
+	return &ClusterNodeGroups{
+		groupMembers: map[FilerGroupName]*GroupMembers{},
 	}
 }
-
-func (cluster *Cluster) getFilers(filerGroup FilerGroup, createIfNotFound bool) *Filers {
-	filers, found := cluster.filerGroup2filers[filerGroup]
+func (g *ClusterNodeGroups) getGroupMembers(filerGroup FilerGroupName, createIfNotFound bool) *GroupMembers {
+	filers, found := g.groupMembers[filerGroup]
 	if !found && createIfNotFound {
-		filers = &Filers{
+		filers = &GroupMembers{
 			members: make(map[pb.ServerAddress]*ClusterNode),
 			leaders: &Leaders{},
 		}
-		cluster.filerGroup2filers[filerGroup] = filers
+		g.groupMembers[filerGroup] = filers
 	}
 	return filers
 }
 
-func (cluster *Cluster) AddClusterNode(ns, nodeType string, dataCenter DataCenter, rack Rack, address pb.ServerAddress, version string) []*master_pb.KeepConnectedResponse {
-	filerGroup := FilerGroup(ns)
+func (m *GroupMembers) addMember(dataCenter DataCenter, rack Rack, address pb.ServerAddress, version string) *ClusterNode {
+	if existingNode, found := m.members[address]; found {
+		existingNode.counter++
+		return nil
+	}
+	t := &ClusterNode{
+		Address:    address,
+		Version:    version,
+		counter:    1,
+		CreatedTs:  time.Now(),
+		DataCenter: dataCenter,
+		Rack:       rack,
+	}
+	m.members[address] = t
+	return t
+}
+func (m *GroupMembers) removeMember(address pb.ServerAddress) bool {
+	if existingNode, found := m.members[address]; !found {
+		return false
+	} else {
+		existingNode.counter--
+		if existingNode.counter <= 0 {
+			delete(m.members, address)
+			return true
+		}
+	}
+	return false
+}
+
+func (g *ClusterNodeGroups) AddClusterNode(filerGroup FilerGroupName, nodeType string, dataCenter DataCenter, rack Rack, address pb.ServerAddress, version string) []*master_pb.KeepConnectedResponse {
+	g.Lock()
+	defer g.Unlock()
+	m := g.getGroupMembers(filerGroup, true)
+	if t := m.addMember(dataCenter, rack, address, version); t != nil {
+		return ensureGroupLeaders(m, true, filerGroup, nodeType, address)
+	}
+	return nil
+}
+func (g *ClusterNodeGroups) RemoveClusterNode(filerGroup FilerGroupName, nodeType string, address pb.ServerAddress) []*master_pb.KeepConnectedResponse {
+	g.Lock()
+	defer g.Unlock()
+	m := g.getGroupMembers(filerGroup, false)
+	if m == nil {
+		return nil
+	}
+	if m.removeMember(address) {
+		return ensureGroupLeaders(m, false, filerGroup, nodeType, address)
+	}
+	return nil
+}
+func (g *ClusterNodeGroups) ListClusterNode(filerGroup FilerGroupName) (nodes []*ClusterNode) {
+	g.Lock()
+	defer g.Unlock()
+	m := g.getGroupMembers(filerGroup, false)
+	if m == nil {
+		return nil
+	}
+	for _, node := range m.members {
+		nodes = append(nodes, node)
+	}
+	return
+}
+func (g *ClusterNodeGroups) IsOneLeader(filerGroup FilerGroupName, address pb.ServerAddress) bool {
+	g.Lock()
+	defer g.Unlock()
+	m := g.getGroupMembers(filerGroup, false)
+	if m == nil {
+		return false
+	}
+	return m.leaders.isOneLeader(address)
+}
+func NewCluster() *Cluster {
+	return &Cluster{
+		filerGroups:  newClusterNodeGroups(),
+		brokerGroups: newClusterNodeGroups(),
+	}
+}
+
+func (cluster *Cluster) getGroupMembers(filerGroup FilerGroupName, nodeType string, createIfNotFound bool) *GroupMembers {
 	switch nodeType {
 	case FilerType:
-		cluster.filersLock.Lock()
-		defer cluster.filersLock.Unlock()
-		filers := cluster.getFilers(filerGroup, true)
-		if existingNode, found := filers.members[address]; found {
-			existingNode.counter++
-			return nil
-		}
-		filers.members[address] = &ClusterNode{
-			Address:    address,
-			Version:    version,
-			counter:    1,
-			CreatedTs:  time.Now(),
-			DataCenter: dataCenter,
-			Rack:       rack,
-		}
-		return ensureFilerLeaders(filers, true, filerGroup, nodeType, address)
+		return cluster.filerGroups.getGroupMembers(filerGroup, createIfNotFound)
 	case BrokerType:
-		cluster.brokersLock.Lock()
-		defer cluster.brokersLock.Unlock()
-		existingDataCenterBrokers, foundDataCenter := cluster.brokers[dataCenter]
-		if !foundDataCenter {
-			existingDataCenterBrokers = &DataCenterBrokers{
-				brokers: make(map[Rack]*RackBrokers),
-			}
-			cluster.brokers[dataCenter] = existingDataCenterBrokers
-		}
-		existingRackBrokers, foundRack := existingDataCenterBrokers.brokers[rack]
-		if !foundRack {
-			existingRackBrokers = &RackBrokers{
-				brokers: make(map[pb.ServerAddress]*ClusterNode),
-			}
-			existingDataCenterBrokers.brokers[rack] = existingRackBrokers
-		}
+		return cluster.brokerGroups.getGroupMembers(filerGroup, createIfNotFound)
+	}
+	return nil
+}
 
-		if existingBroker, found := existingRackBrokers.brokers[address]; found {
-			existingBroker.counter++
-			return nil
-		}
-		existingRackBrokers.brokers[address] = &ClusterNode{
-			Address:    address,
-			Version:    version,
-			counter:    1,
-			CreatedTs:  time.Now(),
-			DataCenter: dataCenter,
-			Rack:       rack,
-		}
-		return []*master_pb.KeepConnectedResponse{
-			{
-				ClusterNodeUpdate: &master_pb.ClusterNodeUpdate{
-					NodeType: nodeType,
-					Address:  string(address),
-					IsAdd:    true,
-				},
-			},
-		}
+func (cluster *Cluster) AddClusterNode(ns, nodeType string, dataCenter DataCenter, rack Rack, address pb.ServerAddress, version string) []*master_pb.KeepConnectedResponse {
+	filerGroup := FilerGroupName(ns)
+	switch nodeType {
+	case FilerType:
+		return cluster.filerGroups.AddClusterNode(filerGroup, nodeType, dataCenter, rack, address, version)
+	case BrokerType:
+		return cluster.brokerGroups.AddClusterNode(filerGroup, nodeType, dataCenter, rack, address, version)
 	case MasterType:
 		return []*master_pb.KeepConnectedResponse{
 			{
@@ -141,57 +169,13 @@ func (cluster *Cluster) AddClusterNode(ns, nodeType string, dataCenter DataCente
 	return nil
 }
 
-func (cluster *Cluster) RemoveClusterNode(ns string, nodeType string, dataCenter DataCenter, rack Rack, address pb.ServerAddress) []*master_pb.KeepConnectedResponse {
-	filerGroup := FilerGroup(ns)
+func (cluster *Cluster) RemoveClusterNode(ns string, nodeType string, address pb.ServerAddress) []*master_pb.KeepConnectedResponse {
+	filerGroup := FilerGroupName(ns)
 	switch nodeType {
 	case FilerType:
-		cluster.filersLock.Lock()
-		defer cluster.filersLock.Unlock()
-		filers := cluster.getFilers(filerGroup, false)
-		if filers == nil {
-			return nil
-		}
-		if existingNode, found := filers.members[address]; !found {
-			return nil
-		} else {
-			existingNode.counter--
-			if existingNode.counter <= 0 {
-				delete(filers.members, address)
-				return ensureFilerLeaders(filers, false, filerGroup, nodeType, address)
-			}
-		}
+		return cluster.filerGroups.RemoveClusterNode(filerGroup, nodeType, address)
 	case BrokerType:
-		cluster.brokersLock.Lock()
-		defer cluster.brokersLock.Unlock()
-
-		existingDataCenterBrokers, foundDataCenter := cluster.brokers[dataCenter]
-		if !foundDataCenter {
-			return nil
-		}
-		existingRackBrokers, foundRack := existingDataCenterBrokers.brokers[Rack(rack)]
-		if !foundRack {
-			return nil
-		}
-
-		existingBroker, found := existingRackBrokers.brokers[address]
-		if !found {
-			return nil
-		}
-		existingBroker.counter--
-		if existingBroker.counter <= 0 {
-			delete(existingRackBrokers.brokers, address)
-			return []*master_pb.KeepConnectedResponse{
-				{
-					ClusterNodeUpdate: &master_pb.ClusterNodeUpdate{
-						NodeType: nodeType,
-						Address:  string(address),
-						IsAdd:    false,
-					},
-				},
-			}
-		}
-		return nil
-
+		return cluster.brokerGroups.RemoveClusterNode(filerGroup, nodeType, address)
 	case MasterType:
 		return []*master_pb.KeepConnectedResponse{
 			{
@@ -206,44 +190,31 @@ func (cluster *Cluster) RemoveClusterNode(ns string, nodeType string, dataCenter
 	return nil
 }
 
-func (cluster *Cluster) ListClusterNode(filerGroup FilerGroup, nodeType string) (nodes []*ClusterNode) {
+func (cluster *Cluster) ListClusterNode(filerGroup FilerGroupName, nodeType string) (nodes []*ClusterNode) {
 	switch nodeType {
 	case FilerType:
-		cluster.filersLock.RLock()
-		defer cluster.filersLock.RUnlock()
-		filers := cluster.getFilers(filerGroup, false)
-		if filers == nil {
-			return
-		}
-		for _, node := range filers.members {
-			nodes = append(nodes, node)
-		}
+		return cluster.filerGroups.ListClusterNode(filerGroup)
 	case BrokerType:
-		cluster.brokersLock.RLock()
-		defer cluster.brokersLock.RUnlock()
-		for _, dcNodes := range cluster.brokers {
-			for _, rackNodes := range dcNodes.brokers {
-				for _, node := range rackNodes.brokers {
-					nodes = append(nodes, node)
-				}
-			}
-		}
+		return cluster.brokerGroups.ListClusterNode(filerGroup)
 	case MasterType:
 	}
 	return
 }
 
-func (cluster *Cluster) IsOneLeader(filerGroup FilerGroup, address pb.ServerAddress) bool {
-	filers := cluster.getFilers(filerGroup, false)
-	if filers == nil {
-		return false
+func (cluster *Cluster) IsOneLeader(filerGroup FilerGroupName, nodeType string, address pb.ServerAddress) bool {
+	switch nodeType {
+	case FilerType:
+		return cluster.filerGroups.IsOneLeader(filerGroup, address)
+	case BrokerType:
+		return cluster.brokerGroups.IsOneLeader(filerGroup, address)
+	case MasterType:
 	}
-	return filers.leaders.isOneLeader(address)
+	return false
 }
 
-func ensureFilerLeaders(filers *Filers, isAdd bool, filerGroup FilerGroup, nodeType string, address pb.ServerAddress) (result []*master_pb.KeepConnectedResponse) {
+func ensureGroupLeaders(m *GroupMembers, isAdd bool, filerGroup FilerGroupName, nodeType string, address pb.ServerAddress) (result []*master_pb.KeepConnectedResponse) {
 	if isAdd {
-		if filers.leaders.addLeaderIfVacant(address) {
+		if m.leaders.addLeaderIfVacant(address) {
 			// has added the address as one leader
 			result = append(result, &master_pb.KeepConnectedResponse{
 				ClusterNodeUpdate: &master_pb.ClusterNodeUpdate{
@@ -266,7 +237,7 @@ func ensureFilerLeaders(filers *Filers, isAdd bool, filerGroup FilerGroup, nodeT
 			})
 		}
 	} else {
-		if filers.leaders.removeLeaderIfExists(address) {
+		if m.leaders.removeLeaderIfExists(address) {
 
 			result = append(result, &master_pb.KeepConnectedResponse{
 				ClusterNodeUpdate: &master_pb.ClusterNodeUpdate{
@@ -282,8 +253,8 @@ func ensureFilerLeaders(filers *Filers, isAdd bool, filerGroup FilerGroup, nodeT
 			var shortestDuration int64 = math.MaxInt64
 			now := time.Now()
 			var candidateAddress pb.ServerAddress
-			for _, node := range filers.members {
-				if filers.leaders.isOneLeader(node.Address) {
+			for _, node := range m.members {
+				if m.leaders.isOneLeader(node.Address) {
 					continue
 				}
 				duration := now.Sub(node.CreatedTs).Nanoseconds()
@@ -293,7 +264,7 @@ func ensureFilerLeaders(filers *Filers, isAdd bool, filerGroup FilerGroup, nodeT
 				}
 			}
 			if candidateAddress != "" {
-				filers.leaders.addLeaderIfVacant(candidateAddress)
+				m.leaders.addLeaderIfVacant(candidateAddress)
 				// added a new leader
 				result = append(result, &master_pb.KeepConnectedResponse{
 					ClusterNodeUpdate: &master_pb.ClusterNodeUpdate{
diff --git a/weed/cluster/cluster_test.go b/weed/cluster/cluster_test.go
index 76cff2a3e..57ee4a023 100644
--- a/weed/cluster/cluster_test.go
+++ b/weed/cluster/cluster_test.go
@@ -16,7 +16,7 @@ func TestClusterAddRemoveNodes(t *testing.T) {
 	assert.Equal(t, []pb.ServerAddress{
 		pb.ServerAddress("111:1"),
 		pb.ServerAddress("111:2"),
-	}, c.getFilers("", false).leaders.GetLeaders())
+	}, c.getGroupMembers("", "filer", true).leaders.GetLeaders())
 
 	c.AddClusterNode("", "filer", "", "", pb.ServerAddress("111:3"), "23.45")
 	c.AddClusterNode("", "filer", "", "", pb.ServerAddress("111:4"), "23.45")
@@ -24,27 +24,27 @@ func TestClusterAddRemoveNodes(t *testing.T) {
 		pb.ServerAddress("111:1"),
 		pb.ServerAddress("111:2"),
 		pb.ServerAddress("111:3"),
-	}, c.getFilers("", false).leaders.GetLeaders())
+	}, c.getGroupMembers("", "filer", true).leaders.GetLeaders())
 
 	c.AddClusterNode("", "filer", "", "", pb.ServerAddress("111:5"), "23.45")
 	c.AddClusterNode("", "filer", "", "", pb.ServerAddress("111:6"), "23.45")
-	c.RemoveClusterNode("", "filer", "", "", pb.ServerAddress("111:4"))
+	c.RemoveClusterNode("", "filer", pb.ServerAddress("111:4"))
 	assert.Equal(t, []pb.ServerAddress{
 		pb.ServerAddress("111:1"),
 		pb.ServerAddress("111:2"),
 		pb.ServerAddress("111:3"),
-	}, c.getFilers("", false).leaders.GetLeaders())
+	}, c.getGroupMembers("", "filer", true).leaders.GetLeaders())
 
 	// remove oldest
-	c.RemoveClusterNode("", "filer", "", "", pb.ServerAddress("111:1"))
+	c.RemoveClusterNode("", "filer", pb.ServerAddress("111:1"))
 	assert.Equal(t, []pb.ServerAddress{
 		pb.ServerAddress("111:6"),
 		pb.ServerAddress("111:2"),
 		pb.ServerAddress("111:3"),
-	}, c.getFilers("", false).leaders.GetLeaders())
+	}, c.getGroupMembers("", "filer", true).leaders.GetLeaders())
 
 	// remove oldest
-	c.RemoveClusterNode("", "filer", "", "", pb.ServerAddress("111:1"))
+	c.RemoveClusterNode("", "filer", pb.ServerAddress("111:1"))
 
 }
 
@@ -66,7 +66,7 @@ func TestConcurrentAddRemoveNodes(t *testing.T) {
 		go func(i int) {
 			defer wg.Done()
 			address := strconv.Itoa(i)
-			node := c.RemoveClusterNode("", "filer", "", "", pb.ServerAddress(address))
+			node := c.RemoveClusterNode("", "filer", pb.ServerAddress(address))
 
 			if len(node) == 0 {
 				t.Errorf("TestConcurrentAddRemoveNodes: node[%s] not found", address)
diff --git a/weed/server/master_grpc_server.go b/weed/server/master_grpc_server.go
index d530e238e..363aa2979 100644
--- a/weed/server/master_grpc_server.go
+++ b/weed/server/master_grpc_server.go
@@ -259,7 +259,7 @@ func (ms *MasterServer) KeepConnected(stream master_pb.Seaweed_KeepConnectedServ
 	}
 
 	defer func() {
-		for _, update := range ms.Cluster.RemoveClusterNode(req.FilerGroup, req.ClientType, cluster.DataCenter(req.DataCenter), cluster.Rack(req.Rack), peerAddress) {
+		for _, update := range ms.Cluster.RemoveClusterNode(req.FilerGroup, req.ClientType, peerAddress) {
 			ms.broadcastToClients(update)
 		}
 		ms.deleteClient(clientName)
diff --git a/weed/server/master_grpc_server_cluster.go b/weed/server/master_grpc_server_cluster.go
index 31d7a6658..e368cb763 100644
--- a/weed/server/master_grpc_server_cluster.go
+++ b/weed/server/master_grpc_server_cluster.go
@@ -10,14 +10,14 @@ import (
 
 func (ms *MasterServer) ListClusterNodes(ctx context.Context, req *master_pb.ListClusterNodesRequest) (*master_pb.ListClusterNodesResponse, error) {
 	resp := &master_pb.ListClusterNodesResponse{}
-	filerGroup := cluster.FilerGroup(req.FilerGroup)
+	filerGroup := cluster.FilerGroupName(req.FilerGroup)
 	clusterNodes := ms.Cluster.ListClusterNode(filerGroup, req.ClientType)
 
 	for _, node := range clusterNodes {
 		resp.ClusterNodes = append(resp.ClusterNodes, &master_pb.ListClusterNodesResponse_ClusterNode{
 			Address:     string(node.Address),
 			Version:     node.Version,
-			IsLeader:    ms.Cluster.IsOneLeader(filerGroup, node.Address),
+			IsLeader:    ms.Cluster.IsOneLeader(filerGroup, req.ClientType, node.Address),
 			CreatedAtNs: node.CreatedTs.UnixNano(),
 			DataCenter:  string(node.DataCenter),
 			Rack:        string(node.Rack),
@@ -26,13 +26,13 @@ func (ms *MasterServer) ListClusterNodes(ctx context.Context, req *master_pb.Lis
 	return resp, nil
 }
 
-func (ms *MasterServer) GetOneFiler(filerGroup cluster.FilerGroup) pb.ServerAddress {
+func (ms *MasterServer) GetOneFiler(filerGroup cluster.FilerGroupName) pb.ServerAddress {
 
 	clusterNodes := ms.Cluster.ListClusterNode(filerGroup, cluster.FilerType)
 
 	var filers []pb.ServerAddress
 	for _, node := range clusterNodes {
-		if ms.Cluster.IsOneLeader(filerGroup, node.Address) {
+		if ms.Cluster.IsOneLeader(filerGroup, cluster.FilerType, node.Address) {
 			filers = append(filers, node.Address)
 		}
 	}
diff --git a/weed/server/master_server.go b/weed/server/master_server.go
index 756d14dbc..92d38d648 100644
--- a/weed/server/master_server.go
+++ b/weed/server/master_server.go
@@ -287,7 +287,7 @@ func (ms *MasterServer) startAdminScripts() {
 		for {
 			time.Sleep(time.Duration(sleepMinutes) * time.Minute)
 			if ms.Topo.IsLeader() {
-				shellOptions.FilerAddress = ms.GetOneFiler(cluster.FilerGroup(*shellOptions.FilerGroup))
+				shellOptions.FilerAddress = ms.GetOneFiler(cluster.FilerGroupName(*shellOptions.FilerGroup))
 				if shellOptions.FilerAddress == "" {
 					continue
 				}

From 1112dab4f325ec594353b687d9b73a3d9f9c06de Mon Sep 17 00:00:00 2001
From: chrislu <chris.lu@gmail.com>
Date: Mon, 11 Jul 2022 00:20:27 -0700
Subject: [PATCH 12/17] allocate brokers to serve segments

---
 weed/cluster/cluster.go                   |  29 +-
 weed/mq/broker/brokder_grpc_admin.go      | 204 ++++++-
 weed/mq/broker/broker_server.go           |   8 +
 weed/mq/topic.go                          |  33 +-
 weed/pb/grpc_client_server.go             |   8 +
 weed/pb/master.proto                      |   2 +
 weed/pb/master_pb/master.pb.go            | 413 +++++++-------
 weed/pb/mq.proto                          |  47 +-
 weed/pb/mq_pb/mq.pb.go                    | 657 +++++++++++++++++++++-
 weed/pb/mq_pb/mq_grpc.pb.go               | 108 ++++
 weed/server/master_grpc_server_cluster.go |  49 +-
 weed/shell/command_cluster_ps.go          |   3 +
 12 files changed, 1309 insertions(+), 252 deletions(-)

diff --git a/weed/cluster/cluster.go b/weed/cluster/cluster.go
index 8496a7f6e..c320065d5 100644
--- a/weed/cluster/cluster.go
+++ b/weed/cluster/cluster.go
@@ -49,15 +49,15 @@ func newClusterNodeGroups() *ClusterNodeGroups {
 	}
 }
 func (g *ClusterNodeGroups) getGroupMembers(filerGroup FilerGroupName, createIfNotFound bool) *GroupMembers {
-	filers, found := g.groupMembers[filerGroup]
+	members, found := g.groupMembers[filerGroup]
 	if !found && createIfNotFound {
-		filers = &GroupMembers{
+		members = &GroupMembers{
 			members: make(map[pb.ServerAddress]*ClusterNode),
 			leaders: &Leaders{},
 		}
-		g.groupMembers[filerGroup] = filers
+		g.groupMembers[filerGroup] = members
 	}
-	return filers
+	return members
 }
 
 func (m *GroupMembers) addMember(dataCenter DataCenter, rack Rack, address pb.ServerAddress, version string) *ClusterNode {
@@ -131,6 +131,16 @@ func (g *ClusterNodeGroups) IsOneLeader(filerGroup FilerGroupName, address pb.Se
 	}
 	return m.leaders.isOneLeader(address)
 }
+func (g *ClusterNodeGroups) ListClusterNodeLeaders(filerGroup FilerGroupName) (nodes []pb.ServerAddress) {
+	g.Lock()
+	defer g.Unlock()
+	m := g.getGroupMembers(filerGroup, false)
+	if m == nil {
+		return nil
+	}
+	return m.leaders.GetLeaders()
+}
+
 func NewCluster() *Cluster {
 	return &Cluster{
 		filerGroups:  newClusterNodeGroups(),
@@ -201,6 +211,17 @@ func (cluster *Cluster) ListClusterNode(filerGroup FilerGroupName, nodeType stri
 	return
 }
 
+func (cluster *Cluster) ListClusterNodeLeaders(filerGroup FilerGroupName, nodeType string) (nodes []pb.ServerAddress) {
+	switch nodeType {
+	case FilerType:
+		return cluster.filerGroups.ListClusterNodeLeaders(filerGroup)
+	case BrokerType:
+		return cluster.brokerGroups.ListClusterNodeLeaders(filerGroup)
+	case MasterType:
+	}
+	return
+}
+
 func (cluster *Cluster) IsOneLeader(filerGroup FilerGroupName, nodeType string, address pb.ServerAddress) bool {
 	switch nodeType {
 	case FilerType:
diff --git a/weed/mq/broker/brokder_grpc_admin.go b/weed/mq/broker/brokder_grpc_admin.go
index e8914cbed..31b5bb84e 100644
--- a/weed/mq/broker/brokder_grpc_admin.go
+++ b/weed/mq/broker/brokder_grpc_admin.go
@@ -2,9 +2,211 @@ package broker
 
 import (
 	"context"
+	"github.com/chrislusf/seaweedfs/weed/cluster"
+	"github.com/chrislusf/seaweedfs/weed/glog"
+	"github.com/chrislusf/seaweedfs/weed/mq"
+	"github.com/chrislusf/seaweedfs/weed/pb"
+	"github.com/chrislusf/seaweedfs/weed/pb/master_pb"
 	"github.com/chrislusf/seaweedfs/weed/pb/mq_pb"
+	"sort"
+	"sync"
 )
 
 func (broker *MessageQueueBroker) FindBrokerLeader(c context.Context, request *mq_pb.FindBrokerLeaderRequest) (*mq_pb.FindBrokerLeaderResponse, error) {
-	panic("implement me")
+	ret := &mq_pb.FindBrokerLeaderResponse{}
+	err := broker.withMasterClient(false, broker.MasterClient.GetMaster(), func(client master_pb.SeaweedClient) error {
+		resp, err := client.ListClusterNodes(context.Background(), &master_pb.ListClusterNodesRequest{
+			ClientType:   cluster.BrokerType,
+			FilerGroup:   request.FilerGroup,
+			IsLeaderOnly: true,
+		})
+		if err != nil {
+			return err
+		}
+		if len(resp.ClusterNodes) == 0 {
+			return nil
+		}
+		ret.Broker = resp.ClusterNodes[0].Address
+		return nil
+	})
+	return ret, err
+}
+
+func (broker *MessageQueueBroker) CheckSegmentStatus(c context.Context, request *mq_pb.CheckSegmentStatusRequest) (*mq_pb.CheckSegmentStatusResponse, error) {
+	ret := &mq_pb.CheckSegmentStatusResponse{}
+	// TODO add in memory active segment
+	return ret, nil
+}
+
+func (broker *MessageQueueBroker) CheckBrokerLoad(c context.Context, request *mq_pb.CheckBrokerLoadRequest) (*mq_pb.CheckBrokerLoadResponse, error) {
+	ret := &mq_pb.CheckBrokerLoadResponse{}
+	// TODO read broker's load
+	return ret, nil
+}
+
+func (broker *MessageQueueBroker) AssignSegmentBrokers(c context.Context, request *mq_pb.AssignSegmentBrokersRequest) (*mq_pb.AssignSegmentBrokersResponse, error) {
+	ret := &mq_pb.AssignSegmentBrokersResponse{}
+	segment := mq.FromPbSegment(request.Segment)
+
+	// check existing segment locations on filer
+	existingBrokers, err := broker.checkSegmentOnFiler(segment)
+	if err != nil {
+		return ret, err
+	}
+	// good if the segment is still on the brokers
+	isActive, err := broker.checkSegmentsOnBrokers(segment, existingBrokers)
+	if err != nil {
+		return ret, err
+	}
+	if isActive {
+		for _, broker := range existingBrokers {
+			ret.Brokers = append(ret.Brokers, string(broker))
+		}
+		return ret, nil
+	}
+
+	// randomly pick up to 10 brokers, and find the ones with the lightest load
+	selectedBrokers, err := broker.selectBrokers()
+	if err != nil {
+		return ret, err
+	}
+
+	// save the allocated brokers info for this segment on the filer
+	if err := broker.saveSegmentOnFiler(segment, selectedBrokers); err != nil {
+		return ret, err
+	}
+
+	for _, broker := range selectedBrokers {
+		ret.Brokers = append(ret.Brokers, string(broker))
+	}
+	return ret, nil
+}
+
+func (broker *MessageQueueBroker) checkSegmentOnFiler(segment *mq.Segment) (brokers []pb.ServerAddress, err error) {
+	return
+}
+
+func (broker *MessageQueueBroker) checkSegmentsOnBrokers(segment *mq.Segment, brokers []pb.ServerAddress) (active bool, err error) {
+	var wg sync.WaitGroup
+
+	for _, candidate := range brokers {
+		wg.Add(1)
+		go func(candidate pb.ServerAddress) {
+			defer wg.Done()
+			broker.withBrokerClient(false, candidate, func(client mq_pb.SeaweedMessagingClient) error {
+				resp, checkErr := client.CheckSegmentStatus(context.Background(), &mq_pb.CheckSegmentStatusRequest{
+					Segment: &mq_pb.Segment{
+						Namespace: string(segment.Topic.Namespace),
+						Topic:     segment.Topic.Name,
+						Id:        segment.Id,
+					},
+				})
+				if checkErr != nil {
+					err = checkErr
+					glog.V(0).Infof("check segment status on %s: %v", candidate, checkErr)
+					return nil
+				}
+				if resp.IsActive == false {
+					active = false
+				}
+				return nil
+			})
+		}(candidate)
+	}
+	wg.Wait()
+	return
+}
+
+func (broker *MessageQueueBroker) selectBrokers() (brokers []pb.ServerAddress, err error) {
+	candidates, err := broker.selectCandidatesFromMaster(10)
+	if err != nil {
+		return
+	}
+	brokers, err = broker.pickLightestCandidates(candidates, 3)
+	return
+}
+
+func (broker *MessageQueueBroker) selectCandidatesFromMaster(limit int32) (candidates []pb.ServerAddress, err error) {
+	err = broker.withMasterClient(false, broker.MasterClient.GetMaster(), func(client master_pb.SeaweedClient) error {
+		resp, err := client.ListClusterNodes(context.Background(), &master_pb.ListClusterNodesRequest{
+			ClientType: cluster.BrokerType,
+			FilerGroup: broker.option.FilerGroup,
+			Limit:      limit,
+		})
+		if err != nil {
+			return err
+		}
+		if len(resp.ClusterNodes) == 0 {
+			return nil
+		}
+		for _, node := range resp.ClusterNodes {
+			candidates = append(candidates, pb.ServerAddress(node.Address))
+		}
+		return nil
+	})
+	return
+}
+
+type CandidateStatus struct {
+	address      pb.ServerAddress
+	messageCount int64
+	bytesCount   int64
+	load         int64
+}
+
+func (broker *MessageQueueBroker) pickLightestCandidates(candidates []pb.ServerAddress, limit int) (selected []pb.ServerAddress, err error) {
+
+	if len(candidates) <= limit {
+		return candidates, nil
+	}
+
+	candidateStatuses, err := broker.checkBrokerStatus(candidates)
+	if err != nil {
+		return nil, err
+	}
+
+	sort.Slice(candidateStatuses, func(i, j int) bool {
+		return candidateStatuses[i].load < candidateStatuses[j].load
+	})
+
+	for i, candidate := range candidateStatuses {
+		if i >= limit {
+			break
+		}
+		selected = append(selected, candidate.address)
+	}
+
+	return
+}
+
+func (broker *MessageQueueBroker) checkBrokerStatus(candidates []pb.ServerAddress) (candidateStatuses []*CandidateStatus, err error) {
+
+	candidateStatuses = make([]*CandidateStatus, len(candidates))
+	var wg sync.WaitGroup
+	for i, candidate := range candidates {
+		wg.Add(1)
+		go func(i int, candidate pb.ServerAddress) {
+			defer wg.Done()
+			err = broker.withBrokerClient(false, candidate, func(client mq_pb.SeaweedMessagingClient) error {
+				resp, checkErr := client.CheckBrokerLoad(context.Background(), &mq_pb.CheckBrokerLoadRequest{})
+				if checkErr != nil {
+					err = checkErr
+					return err
+				}
+				candidateStatuses[i] = &CandidateStatus{
+					address:      candidate,
+					messageCount: resp.MessageCount,
+					bytesCount:   resp.BytesCount,
+					load:         resp.MessageCount + resp.BytesCount/(64*1024),
+				}
+				return nil
+			})
+		}(i, candidate)
+	}
+	wg.Wait()
+	return
+}
+
+func (broker *MessageQueueBroker) saveSegmentOnFiler(segment *mq.Segment, brokers []pb.ServerAddress) (err error) {
+	return
 }
diff --git a/weed/mq/broker/broker_server.go b/weed/mq/broker/broker_server.go
index 63e248797..64ea7c666 100644
--- a/weed/mq/broker/broker_server.go
+++ b/weed/mq/broker/broker_server.go
@@ -59,3 +59,11 @@ func (broker *MessageQueueBroker) withMasterClient(streamingMode bool, master pb
 	})
 
 }
+
+func (broker *MessageQueueBroker) withBrokerClient(streamingMode bool, server pb.ServerAddress, fn func(client mq_pb.SeaweedMessagingClient) error) error {
+
+	return pb.WithBrokerClient(streamingMode, server, broker.grpcDialOption, func(client mq_pb.SeaweedMessagingClient) error {
+		return fn(client)
+	})
+
+}
diff --git a/weed/mq/topic.go b/weed/mq/topic.go
index fc1923af1..87621fca7 100644
--- a/weed/mq/topic.go
+++ b/weed/mq/topic.go
@@ -1,23 +1,36 @@
 package mq
 
-import "time"
+import (
+	"github.com/chrislusf/seaweedfs/weed/pb/mq_pb"
+	"time"
+)
 
 type Namespace string
 
 type Topic struct {
-	namespace Namespace
-	name      string
+	Namespace Namespace
+	Name      string
 }
 
 type Partition struct {
-	rangeStart int
-	rangeStop  int // exclusive
-	ringSize   int
+	RangeStart int
+	RangeStop  int // exclusive
+	RingSize   int
 }
 
 type Segment struct {
-	topic        Topic
-	id           int32
-	partition    Partition
-	lastModified time.Time
+	Topic        Topic
+	Id           int32
+	Partition    Partition
+	LastModified time.Time
+}
+
+func FromPbSegment(segment *mq_pb.Segment) *Segment {
+	return &Segment{
+		Topic: Topic{
+			Namespace: Namespace(segment.Namespace),
+			Name:      segment.Topic,
+		},
+		Id: segment.Id,
+	}
 }
diff --git a/weed/pb/grpc_client_server.go b/weed/pb/grpc_client_server.go
index 0a0d65a87..a97135060 100644
--- a/weed/pb/grpc_client_server.go
+++ b/weed/pb/grpc_client_server.go
@@ -216,6 +216,14 @@ func WithVolumeServerClient(streamingMode bool, volumeServer ServerAddress, grpc
 
 }
 
+func WithBrokerClient(streamingMode bool, broker ServerAddress, grpcDialOption grpc.DialOption, fn func(client mq_pb.SeaweedMessagingClient) error) error {
+	return WithGrpcClient(streamingMode, func(grpcConnection *grpc.ClientConn) error {
+		client := mq_pb.NewSeaweedMessagingClient(grpcConnection)
+		return fn(client)
+	}, broker.ToGrpcAddress(), grpcDialOption)
+
+}
+
 func WithOneOfGrpcMasterClients(streamingMode bool, masterGrpcAddresses map[string]ServerAddress, grpcDialOption grpc.DialOption, fn func(client master_pb.SeaweedClient) error) (err error) {
 
 	for _, masterGrpcAddress := range masterGrpcAddresses {
diff --git a/weed/pb/master.proto b/weed/pb/master.proto
index 19d2da16c..3f115c22a 100644
--- a/weed/pb/master.proto
+++ b/weed/pb/master.proto
@@ -317,6 +317,8 @@ message GetMasterConfigurationResponse {
 message ListClusterNodesRequest {
   string client_type = 1;
   string filer_group = 2;
+  bool is_leader_only = 3;
+  int32 limit = 4;
 }
 message ListClusterNodesResponse {
   message ClusterNode {
diff --git a/weed/pb/master_pb/master.pb.go b/weed/pb/master_pb/master.pb.go
index 12372e62e..0a0d451da 100644
--- a/weed/pb/master_pb/master.pb.go
+++ b/weed/pb/master_pb/master.pb.go
@@ -2632,8 +2632,10 @@ type ListClusterNodesRequest struct {
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	ClientType string `protobuf:"bytes,1,opt,name=client_type,json=clientType,proto3" json:"client_type,omitempty"`
-	FilerGroup string `protobuf:"bytes,2,opt,name=filer_group,json=filerGroup,proto3" json:"filer_group,omitempty"`
+	ClientType   string `protobuf:"bytes,1,opt,name=client_type,json=clientType,proto3" json:"client_type,omitempty"`
+	FilerGroup   string `protobuf:"bytes,2,opt,name=filer_group,json=filerGroup,proto3" json:"filer_group,omitempty"`
+	IsLeaderOnly bool   `protobuf:"varint,3,opt,name=is_leader_only,json=isLeaderOnly,proto3" json:"is_leader_only,omitempty"`
+	Limit        int32  `protobuf:"varint,4,opt,name=limit,proto3" json:"limit,omitempty"`
 }
 
 func (x *ListClusterNodesRequest) Reset() {
@@ -2682,6 +2684,20 @@ func (x *ListClusterNodesRequest) GetFilerGroup() string {
 	return ""
 }
 
+func (x *ListClusterNodesRequest) GetIsLeaderOnly() bool {
+	if x != nil {
+		return x.IsLeaderOnly
+	}
+	return false
+}
+
+func (x *ListClusterNodesRequest) GetLimit() int32 {
+	if x != nil {
+		return x.Limit
+	}
+	return 0
+}
+
 type ListClusterNodesResponse struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -4165,204 +4181,207 @@ var file_master_proto_rawDesc = []byte{
 	0x69, 0x6d, 0x69, 0x74, 0x4d, 0x42, 0x12, 0x2d, 0x0a, 0x12, 0x76, 0x6f, 0x6c, 0x75, 0x6d, 0x65,
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+	0x2f, 0x63, 0x68, 0x72, 0x69, 0x73, 0x6c, 0x75, 0x73, 0x66, 0x2f, 0x73, 0x65, 0x61, 0x77, 0x65,
+	0x65, 0x64, 0x66, 0x73, 0x2f, 0x77, 0x65, 0x65, 0x64, 0x2f, 0x70, 0x62, 0x2f, 0x6d, 0x61, 0x73,
+	0x74, 0x65, 0x72, 0x5f, 0x70, 0x62, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
diff --git a/weed/pb/mq.proto b/weed/pb/mq.proto
index 47bd1775e..1f91170fd 100644
--- a/weed/pb/mq.proto
+++ b/weed/pb/mq.proto
@@ -10,7 +10,13 @@ option java_outer_classname = "MessagQueueProto";
 
 service SeaweedMessaging {
 
-    rpc FindBrokerLeader (FindBrokerLeader) returns (FindBrokerLeaderResponse) {
+    rpc FindBrokerLeader (FindBrokerLeaderRequest) returns (FindBrokerLeaderResponse) {
+    }
+    rpc AssignSegmentBrokers (AssignSegmentBrokersRequest) returns (AssignSegmentBrokersResponse) {
+    }
+    rpc CheckSegmentStatus (CheckSegmentStatusRequest) returns (CheckSegmentStatusResponse) {
+    }
+    rpc CheckBrokerLoad (CheckBrokerLoadRequest) returns (CheckBrokerLoadResponse) {
     }
 
 }
@@ -18,8 +24,47 @@ service SeaweedMessaging {
 //////////////////////////////////////////////////
 
 message FindBrokerLeaderRequest {
+    string filer_group = 1;
 }
 
 message FindBrokerLeaderResponse {
     string broker = 1;
 }
+
+message Partition {
+    int32 ring_size = 1;
+    int32 range_start = 2;
+    int32 range_stop = 3;
+}
+
+message Segment {
+    string namespace = 1;
+    string topic = 2;
+    int32 id = 3;
+    Partition partition = 4;
+}
+
+message AssignSegmentBrokersRequest {
+    Segment segment = 1;
+}
+
+message AssignSegmentBrokersResponse {
+    repeated string brokers = 1;
+}
+
+message CheckSegmentStatusRequest {
+    Segment segment = 1;
+}
+
+message CheckSegmentStatusResponse {
+    bool is_active = 1;
+}
+
+message CheckBrokerLoadRequest {
+}
+
+message CheckBrokerLoadResponse {
+    int64 message_count = 1;
+    int64 bytes_count = 2;
+
+}
diff --git a/weed/pb/mq_pb/mq.pb.go b/weed/pb/mq_pb/mq.pb.go
index a5d63c8d9..e305ba8d0 100644
--- a/weed/pb/mq_pb/mq.pb.go
+++ b/weed/pb/mq_pb/mq.pb.go
@@ -24,6 +24,8 @@ type FindBrokerLeaderRequest struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
+
+	FilerGroup string `protobuf:"bytes,1,opt,name=filer_group,json=filerGroup,proto3" json:"filer_group,omitempty"`
 }
 
 func (x *FindBrokerLeaderRequest) Reset() {
@@ -58,6 +60,13 @@ func (*FindBrokerLeaderRequest) Descriptor() ([]byte, []int) {
 	return file_mq_proto_rawDescGZIP(), []int{0}
 }
 
+func (x *FindBrokerLeaderRequest) GetFilerGroup() string {
+	if x != nil {
+		return x.FilerGroup
+	}
+	return ""
+}
+
 type FindBrokerLeaderResponse struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -105,29 +114,506 @@ func (x *FindBrokerLeaderResponse) GetBroker() string {
 	return ""
 }
 
+type Partition struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	RingSize   int32 `protobuf:"varint,1,opt,name=ring_size,json=ringSize,proto3" json:"ring_size,omitempty"`
+	RangeStart int32 `protobuf:"varint,2,opt,name=range_start,json=rangeStart,proto3" json:"range_start,omitempty"`
+	RangeStop  int32 `protobuf:"varint,3,opt,name=range_stop,json=rangeStop,proto3" json:"range_stop,omitempty"`
+}
+
+func (x *Partition) Reset() {
+	*x = Partition{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_mq_proto_msgTypes[2]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *Partition) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Partition) ProtoMessage() {}
+
+func (x *Partition) ProtoReflect() protoreflect.Message {
+	mi := &file_mq_proto_msgTypes[2]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use Partition.ProtoReflect.Descriptor instead.
+func (*Partition) Descriptor() ([]byte, []int) {
+	return file_mq_proto_rawDescGZIP(), []int{2}
+}
+
+func (x *Partition) GetRingSize() int32 {
+	if x != nil {
+		return x.RingSize
+	}
+	return 0
+}
+
+func (x *Partition) GetRangeStart() int32 {
+	if x != nil {
+		return x.RangeStart
+	}
+	return 0
+}
+
+func (x *Partition) GetRangeStop() int32 {
+	if x != nil {
+		return x.RangeStop
+	}
+	return 0
+}
+
+type Segment struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Namespace string     `protobuf:"bytes,1,opt,name=namespace,proto3" json:"namespace,omitempty"`
+	Topic     string     `protobuf:"bytes,2,opt,name=topic,proto3" json:"topic,omitempty"`
+	Id        int32      `protobuf:"varint,3,opt,name=id,proto3" json:"id,omitempty"`
+	Partition *Partition `protobuf:"bytes,4,opt,name=partition,proto3" json:"partition,omitempty"`
+}
+
+func (x *Segment) Reset() {
+	*x = Segment{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_mq_proto_msgTypes[3]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *Segment) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Segment) ProtoMessage() {}
+
+func (x *Segment) ProtoReflect() protoreflect.Message {
+	mi := &file_mq_proto_msgTypes[3]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use Segment.ProtoReflect.Descriptor instead.
+func (*Segment) Descriptor() ([]byte, []int) {
+	return file_mq_proto_rawDescGZIP(), []int{3}
+}
+
+func (x *Segment) GetNamespace() string {
+	if x != nil {
+		return x.Namespace
+	}
+	return ""
+}
+
+func (x *Segment) GetTopic() string {
+	if x != nil {
+		return x.Topic
+	}
+	return ""
+}
+
+func (x *Segment) GetId() int32 {
+	if x != nil {
+		return x.Id
+	}
+	return 0
+}
+
+func (x *Segment) GetPartition() *Partition {
+	if x != nil {
+		return x.Partition
+	}
+	return nil
+}
+
+type AssignSegmentBrokersRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Segment *Segment `protobuf:"bytes,1,opt,name=segment,proto3" json:"segment,omitempty"`
+}
+
+func (x *AssignSegmentBrokersRequest) Reset() {
+	*x = AssignSegmentBrokersRequest{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_mq_proto_msgTypes[4]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *AssignSegmentBrokersRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*AssignSegmentBrokersRequest) ProtoMessage() {}
+
+func (x *AssignSegmentBrokersRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_mq_proto_msgTypes[4]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use AssignSegmentBrokersRequest.ProtoReflect.Descriptor instead.
+func (*AssignSegmentBrokersRequest) Descriptor() ([]byte, []int) {
+	return file_mq_proto_rawDescGZIP(), []int{4}
+}
+
+func (x *AssignSegmentBrokersRequest) GetSegment() *Segment {
+	if x != nil {
+		return x.Segment
+	}
+	return nil
+}
+
+type AssignSegmentBrokersResponse struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Brokers []string `protobuf:"bytes,1,rep,name=brokers,proto3" json:"brokers,omitempty"`
+}
+
+func (x *AssignSegmentBrokersResponse) Reset() {
+	*x = AssignSegmentBrokersResponse{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_mq_proto_msgTypes[5]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *AssignSegmentBrokersResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*AssignSegmentBrokersResponse) ProtoMessage() {}
+
+func (x *AssignSegmentBrokersResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_mq_proto_msgTypes[5]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use AssignSegmentBrokersResponse.ProtoReflect.Descriptor instead.
+func (*AssignSegmentBrokersResponse) Descriptor() ([]byte, []int) {
+	return file_mq_proto_rawDescGZIP(), []int{5}
+}
+
+func (x *AssignSegmentBrokersResponse) GetBrokers() []string {
+	if x != nil {
+		return x.Brokers
+	}
+	return nil
+}
+
+type CheckSegmentStatusRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Segment *Segment `protobuf:"bytes,1,opt,name=segment,proto3" json:"segment,omitempty"`
+}
+
+func (x *CheckSegmentStatusRequest) Reset() {
+	*x = CheckSegmentStatusRequest{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_mq_proto_msgTypes[6]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *CheckSegmentStatusRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*CheckSegmentStatusRequest) ProtoMessage() {}
+
+func (x *CheckSegmentStatusRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_mq_proto_msgTypes[6]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use CheckSegmentStatusRequest.ProtoReflect.Descriptor instead.
+func (*CheckSegmentStatusRequest) Descriptor() ([]byte, []int) {
+	return file_mq_proto_rawDescGZIP(), []int{6}
+}
+
+func (x *CheckSegmentStatusRequest) GetSegment() *Segment {
+	if x != nil {
+		return x.Segment
+	}
+	return nil
+}
+
+type CheckSegmentStatusResponse struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	IsActive bool `protobuf:"varint,1,opt,name=is_active,json=isActive,proto3" json:"is_active,omitempty"`
+}
+
+func (x *CheckSegmentStatusResponse) Reset() {
+	*x = CheckSegmentStatusResponse{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_mq_proto_msgTypes[7]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *CheckSegmentStatusResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*CheckSegmentStatusResponse) ProtoMessage() {}
+
+func (x *CheckSegmentStatusResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_mq_proto_msgTypes[7]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use CheckSegmentStatusResponse.ProtoReflect.Descriptor instead.
+func (*CheckSegmentStatusResponse) Descriptor() ([]byte, []int) {
+	return file_mq_proto_rawDescGZIP(), []int{7}
+}
+
+func (x *CheckSegmentStatusResponse) GetIsActive() bool {
+	if x != nil {
+		return x.IsActive
+	}
+	return false
+}
+
+type CheckBrokerLoadRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+}
+
+func (x *CheckBrokerLoadRequest) Reset() {
+	*x = CheckBrokerLoadRequest{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_mq_proto_msgTypes[8]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *CheckBrokerLoadRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*CheckBrokerLoadRequest) ProtoMessage() {}
+
+func (x *CheckBrokerLoadRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_mq_proto_msgTypes[8]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use CheckBrokerLoadRequest.ProtoReflect.Descriptor instead.
+func (*CheckBrokerLoadRequest) Descriptor() ([]byte, []int) {
+	return file_mq_proto_rawDescGZIP(), []int{8}
+}
+
+type CheckBrokerLoadResponse struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	MessageCount int64 `protobuf:"varint,1,opt,name=message_count,json=messageCount,proto3" json:"message_count,omitempty"`
+	BytesCount   int64 `protobuf:"varint,2,opt,name=bytes_count,json=bytesCount,proto3" json:"bytes_count,omitempty"`
+}
+
+func (x *CheckBrokerLoadResponse) Reset() {
+	*x = CheckBrokerLoadResponse{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_mq_proto_msgTypes[9]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *CheckBrokerLoadResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*CheckBrokerLoadResponse) ProtoMessage() {}
+
+func (x *CheckBrokerLoadResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_mq_proto_msgTypes[9]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use CheckBrokerLoadResponse.ProtoReflect.Descriptor instead.
+func (*CheckBrokerLoadResponse) Descriptor() ([]byte, []int) {
+	return file_mq_proto_rawDescGZIP(), []int{9}
+}
+
+func (x *CheckBrokerLoadResponse) GetMessageCount() int64 {
+	if x != nil {
+		return x.MessageCount
+	}
+	return 0
+}
+
+func (x *CheckBrokerLoadResponse) GetBytesCount() int64 {
+	if x != nil {
+		return x.BytesCount
+	}
+	return 0
+}
+
 var File_mq_proto protoreflect.FileDescriptor
 
 var file_mq_proto_rawDesc = []byte{
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+	0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
@@ -142,19 +628,36 @@ func file_mq_proto_rawDescGZIP() []byte {
 	return file_mq_proto_rawDescData
 }
 
-var file_mq_proto_msgTypes = make([]protoimpl.MessageInfo, 2)
+var file_mq_proto_msgTypes = make([]protoimpl.MessageInfo, 10)
 var file_mq_proto_goTypes = []interface{}{
-	(*FindBrokerLeaderRequest)(nil),  // 0: messaging_pb.FindBrokerLeaderRequest
-	(*FindBrokerLeaderResponse)(nil), // 1: messaging_pb.FindBrokerLeaderResponse
+	(*FindBrokerLeaderRequest)(nil),      // 0: messaging_pb.FindBrokerLeaderRequest
+	(*FindBrokerLeaderResponse)(nil),     // 1: messaging_pb.FindBrokerLeaderResponse
+	(*Partition)(nil),                    // 2: messaging_pb.Partition
+	(*Segment)(nil),                      // 3: messaging_pb.Segment
+	(*AssignSegmentBrokersRequest)(nil),  // 4: messaging_pb.AssignSegmentBrokersRequest
+	(*AssignSegmentBrokersResponse)(nil), // 5: messaging_pb.AssignSegmentBrokersResponse
+	(*CheckSegmentStatusRequest)(nil),    // 6: messaging_pb.CheckSegmentStatusRequest
+	(*CheckSegmentStatusResponse)(nil),   // 7: messaging_pb.CheckSegmentStatusResponse
+	(*CheckBrokerLoadRequest)(nil),       // 8: messaging_pb.CheckBrokerLoadRequest
+	(*CheckBrokerLoadResponse)(nil),      // 9: messaging_pb.CheckBrokerLoadResponse
 }
 var file_mq_proto_depIdxs = []int32{
-	0, // 0: messaging_pb.SeaweedMessaging.FindBrokerLeader:input_type -> messaging_pb.FindBrokerLeaderRequest
-	1, // 1: messaging_pb.SeaweedMessaging.FindBrokerLeader:output_type -> messaging_pb.FindBrokerLeaderResponse
-	1, // [1:2] is the sub-list for method output_type
-	0, // [0:1] is the sub-list for method input_type
-	0, // [0:0] is the sub-list for extension type_name
-	0, // [0:0] is the sub-list for extension extendee
-	0, // [0:0] is the sub-list for field type_name
+	2, // 0: messaging_pb.Segment.partition:type_name -> messaging_pb.Partition
+	3, // 1: messaging_pb.AssignSegmentBrokersRequest.segment:type_name -> messaging_pb.Segment
+	3, // 2: messaging_pb.CheckSegmentStatusRequest.segment:type_name -> messaging_pb.Segment
+	0, // 3: messaging_pb.SeaweedMessaging.FindBrokerLeader:input_type -> messaging_pb.FindBrokerLeaderRequest
+	4, // 4: messaging_pb.SeaweedMessaging.AssignSegmentBrokers:input_type -> messaging_pb.AssignSegmentBrokersRequest
+	6, // 5: messaging_pb.SeaweedMessaging.CheckSegmentStatus:input_type -> messaging_pb.CheckSegmentStatusRequest
+	8, // 6: messaging_pb.SeaweedMessaging.CheckBrokerLoad:input_type -> messaging_pb.CheckBrokerLoadRequest
+	1, // 7: messaging_pb.SeaweedMessaging.FindBrokerLeader:output_type -> messaging_pb.FindBrokerLeaderResponse
+	5, // 8: messaging_pb.SeaweedMessaging.AssignSegmentBrokers:output_type -> messaging_pb.AssignSegmentBrokersResponse
+	7, // 9: messaging_pb.SeaweedMessaging.CheckSegmentStatus:output_type -> messaging_pb.CheckSegmentStatusResponse
+	9, // 10: messaging_pb.SeaweedMessaging.CheckBrokerLoad:output_type -> messaging_pb.CheckBrokerLoadResponse
+	7, // [7:11] is the sub-list for method output_type
+	3, // [3:7] is the sub-list for method input_type
+	3, // [3:3] is the sub-list for extension type_name
+	3, // [3:3] is the sub-list for extension extendee
+	0, // [0:3] is the sub-list for field type_name
 }
 
 func init() { file_mq_proto_init() }
@@ -187,6 +690,102 @@ func file_mq_proto_init() {
 				return nil
 			}
 		}
+		file_mq_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Partition); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_mq_proto_msgTypes[3].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Segment); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_mq_proto_msgTypes[4].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*AssignSegmentBrokersRequest); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_mq_proto_msgTypes[5].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*AssignSegmentBrokersResponse); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_mq_proto_msgTypes[6].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*CheckSegmentStatusRequest); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_mq_proto_msgTypes[7].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*CheckSegmentStatusResponse); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_mq_proto_msgTypes[8].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*CheckBrokerLoadRequest); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_mq_proto_msgTypes[9].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*CheckBrokerLoadResponse); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
 	}
 	type x struct{}
 	out := protoimpl.TypeBuilder{
@@ -194,7 +793,7 @@ func file_mq_proto_init() {
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: file_mq_proto_rawDesc,
 			NumEnums:      0,
-			NumMessages:   2,
+			NumMessages:   10,
 			NumExtensions: 0,
 			NumServices:   1,
 		},
diff --git a/weed/pb/mq_pb/mq_grpc.pb.go b/weed/pb/mq_pb/mq_grpc.pb.go
index 5851632cc..463888dac 100644
--- a/weed/pb/mq_pb/mq_grpc.pb.go
+++ b/weed/pb/mq_pb/mq_grpc.pb.go
@@ -19,6 +19,9 @@ const _ = grpc.SupportPackageIsVersion7
 // For semantics around ctx use and closing/ending streaming RPCs, please refer to https://pkg.go.dev/google.golang.org/grpc/?tab=doc#ClientConn.NewStream.
 type SeaweedMessagingClient interface {
 	FindBrokerLeader(ctx context.Context, in *FindBrokerLeaderRequest, opts ...grpc.CallOption) (*FindBrokerLeaderResponse, error)
+	AssignSegmentBrokers(ctx context.Context, in *AssignSegmentBrokersRequest, opts ...grpc.CallOption) (*AssignSegmentBrokersResponse, error)
+	CheckSegmentStatus(ctx context.Context, in *CheckSegmentStatusRequest, opts ...grpc.CallOption) (*CheckSegmentStatusResponse, error)
+	CheckBrokerLoad(ctx context.Context, in *CheckBrokerLoadRequest, opts ...grpc.CallOption) (*CheckBrokerLoadResponse, error)
 }
 
 type seaweedMessagingClient struct {
@@ -38,11 +41,41 @@ func (c *seaweedMessagingClient) FindBrokerLeader(ctx context.Context, in *FindB
 	return out, nil
 }
 
+func (c *seaweedMessagingClient) AssignSegmentBrokers(ctx context.Context, in *AssignSegmentBrokersRequest, opts ...grpc.CallOption) (*AssignSegmentBrokersResponse, error) {
+	out := new(AssignSegmentBrokersResponse)
+	err := c.cc.Invoke(ctx, "/messaging_pb.SeaweedMessaging/AssignSegmentBrokers", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *seaweedMessagingClient) CheckSegmentStatus(ctx context.Context, in *CheckSegmentStatusRequest, opts ...grpc.CallOption) (*CheckSegmentStatusResponse, error) {
+	out := new(CheckSegmentStatusResponse)
+	err := c.cc.Invoke(ctx, "/messaging_pb.SeaweedMessaging/CheckSegmentStatus", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *seaweedMessagingClient) CheckBrokerLoad(ctx context.Context, in *CheckBrokerLoadRequest, opts ...grpc.CallOption) (*CheckBrokerLoadResponse, error) {
+	out := new(CheckBrokerLoadResponse)
+	err := c.cc.Invoke(ctx, "/messaging_pb.SeaweedMessaging/CheckBrokerLoad", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
 // SeaweedMessagingServer is the server API for SeaweedMessaging service.
 // All implementations must embed UnimplementedSeaweedMessagingServer
 // for forward compatibility
 type SeaweedMessagingServer interface {
 	FindBrokerLeader(context.Context, *FindBrokerLeaderRequest) (*FindBrokerLeaderResponse, error)
+	AssignSegmentBrokers(context.Context, *AssignSegmentBrokersRequest) (*AssignSegmentBrokersResponse, error)
+	CheckSegmentStatus(context.Context, *CheckSegmentStatusRequest) (*CheckSegmentStatusResponse, error)
+	CheckBrokerLoad(context.Context, *CheckBrokerLoadRequest) (*CheckBrokerLoadResponse, error)
 	mustEmbedUnimplementedSeaweedMessagingServer()
 }
 
@@ -53,6 +86,15 @@ type UnimplementedSeaweedMessagingServer struct {
 func (UnimplementedSeaweedMessagingServer) FindBrokerLeader(context.Context, *FindBrokerLeaderRequest) (*FindBrokerLeaderResponse, error) {
 	return nil, status.Errorf(codes.Unimplemented, "method FindBrokerLeader not implemented")
 }
+func (UnimplementedSeaweedMessagingServer) AssignSegmentBrokers(context.Context, *AssignSegmentBrokersRequest) (*AssignSegmentBrokersResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method AssignSegmentBrokers not implemented")
+}
+func (UnimplementedSeaweedMessagingServer) CheckSegmentStatus(context.Context, *CheckSegmentStatusRequest) (*CheckSegmentStatusResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method CheckSegmentStatus not implemented")
+}
+func (UnimplementedSeaweedMessagingServer) CheckBrokerLoad(context.Context, *CheckBrokerLoadRequest) (*CheckBrokerLoadResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method CheckBrokerLoad not implemented")
+}
 func (UnimplementedSeaweedMessagingServer) mustEmbedUnimplementedSeaweedMessagingServer() {}
 
 // UnsafeSeaweedMessagingServer may be embedded to opt out of forward compatibility for this service.
@@ -84,6 +126,60 @@ func _SeaweedMessaging_FindBrokerLeader_Handler(srv interface{}, ctx context.Con
 	return interceptor(ctx, in, info, handler)
 }
 
+func _SeaweedMessaging_AssignSegmentBrokers_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(AssignSegmentBrokersRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(SeaweedMessagingServer).AssignSegmentBrokers(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/messaging_pb.SeaweedMessaging/AssignSegmentBrokers",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(SeaweedMessagingServer).AssignSegmentBrokers(ctx, req.(*AssignSegmentBrokersRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _SeaweedMessaging_CheckSegmentStatus_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(CheckSegmentStatusRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(SeaweedMessagingServer).CheckSegmentStatus(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/messaging_pb.SeaweedMessaging/CheckSegmentStatus",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(SeaweedMessagingServer).CheckSegmentStatus(ctx, req.(*CheckSegmentStatusRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _SeaweedMessaging_CheckBrokerLoad_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(CheckBrokerLoadRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(SeaweedMessagingServer).CheckBrokerLoad(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/messaging_pb.SeaweedMessaging/CheckBrokerLoad",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(SeaweedMessagingServer).CheckBrokerLoad(ctx, req.(*CheckBrokerLoadRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
 // SeaweedMessaging_ServiceDesc is the grpc.ServiceDesc for SeaweedMessaging service.
 // It's only intended for direct use with grpc.RegisterService,
 // and not to be introspected or modified (even as a copy)
@@ -95,6 +191,18 @@ var SeaweedMessaging_ServiceDesc = grpc.ServiceDesc{
 			MethodName: "FindBrokerLeader",
 			Handler:    _SeaweedMessaging_FindBrokerLeader_Handler,
 		},
+		{
+			MethodName: "AssignSegmentBrokers",
+			Handler:    _SeaweedMessaging_AssignSegmentBrokers_Handler,
+		},
+		{
+			MethodName: "CheckSegmentStatus",
+			Handler:    _SeaweedMessaging_CheckSegmentStatus_Handler,
+		},
+		{
+			MethodName: "CheckBrokerLoad",
+			Handler:    _SeaweedMessaging_CheckBrokerLoad_Handler,
+		},
 	},
 	Streams:  []grpc.StreamDesc{},
 	Metadata: "mq.proto",
diff --git a/weed/server/master_grpc_server_cluster.go b/weed/server/master_grpc_server_cluster.go
index e368cb763..6a8852bee 100644
--- a/weed/server/master_grpc_server_cluster.go
+++ b/weed/server/master_grpc_server_cluster.go
@@ -11,17 +11,28 @@ import (
 func (ms *MasterServer) ListClusterNodes(ctx context.Context, req *master_pb.ListClusterNodesRequest) (*master_pb.ListClusterNodesResponse, error) {
 	resp := &master_pb.ListClusterNodesResponse{}
 	filerGroup := cluster.FilerGroupName(req.FilerGroup)
-	clusterNodes := ms.Cluster.ListClusterNode(filerGroup, req.ClientType)
 
-	for _, node := range clusterNodes {
-		resp.ClusterNodes = append(resp.ClusterNodes, &master_pb.ListClusterNodesResponse_ClusterNode{
-			Address:     string(node.Address),
-			Version:     node.Version,
-			IsLeader:    ms.Cluster.IsOneLeader(filerGroup, req.ClientType, node.Address),
-			CreatedAtNs: node.CreatedTs.UnixNano(),
-			DataCenter:  string(node.DataCenter),
-			Rack:        string(node.Rack),
-		})
+	if req.IsLeaderOnly {
+		leaders := ms.Cluster.ListClusterNodeLeaders(filerGroup, req.ClientType)
+		for _, node := range leaders {
+			resp.ClusterNodes = append(resp.ClusterNodes, &master_pb.ListClusterNodesResponse_ClusterNode{
+				Address:  string(node),
+				IsLeader: true,
+			})
+		}
+	} else {
+		clusterNodes := ms.Cluster.ListClusterNode(filerGroup, req.ClientType)
+		clusterNodes = limitTo(clusterNodes, req.Limit)
+		for _, node := range clusterNodes {
+			resp.ClusterNodes = append(resp.ClusterNodes, &master_pb.ListClusterNodesResponse_ClusterNode{
+				Address:     string(node.Address),
+				Version:     node.Version,
+				IsLeader:    ms.Cluster.IsOneLeader(filerGroup, req.ClientType, node.Address),
+				CreatedAtNs: node.CreatedTs.UnixNano(),
+				DataCenter:  string(node.DataCenter),
+				Rack:        string(node.Rack),
+			})
+		}
 	}
 	return resp, nil
 }
@@ -41,3 +52,21 @@ func (ms *MasterServer) GetOneFiler(filerGroup cluster.FilerGroupName) pb.Server
 	}
 	return "localhost:8888"
 }
+
+func limitTo(nodes []*cluster.ClusterNode, limit int32) (selected []*cluster.ClusterNode) {
+	if limit <= 0 || len(nodes) < int(limit) {
+		return nodes
+	}
+	seletedSet := make(map[pb.ServerAddress]*cluster.ClusterNode)
+	for i := 0; i < int(limit)*3; i++ {
+		x := rand.Intn(len(nodes))
+		if _, found := seletedSet[nodes[x].Address]; found {
+			continue
+		}
+		seletedSet[nodes[x].Address] = nodes[x]
+	}
+	for _, node := range seletedSet {
+		selected = append(selected, node)
+	}
+	return
+}
diff --git a/weed/shell/command_cluster_ps.go b/weed/shell/command_cluster_ps.go
index 974815a15..f620df3f7 100644
--- a/weed/shell/command_cluster_ps.go
+++ b/weed/shell/command_cluster_ps.go
@@ -86,6 +86,9 @@ func (c *commandClusterPs) Do(args []string, commandEnv *CommandEnv, writer io.W
 			if node.Rack != "" {
 				fmt.Fprintf(writer, "    Rack: %v\n", node.Rack)
 			}
+			if node.IsLeader {
+				fmt.Fprintf(writer, "    IsLeader: %v\n", true)
+			}
 		}
 	}
 

From 11d79615c882b8ab635a882ee6654d8cb1e38468 Mon Sep 17 00:00:00 2001
From: chrislu <chris.lu@gmail.com>
Date: Tue, 12 Jul 2022 02:00:54 -0700
Subject: [PATCH 13/17] dynamically connect to a filer

---
 weed/cluster/master_client.go                 | 34 +++++++++
 weed/command/mq_broker.go                     | 30 --------
 weed/command/server.go                        |  1 -
 weed/filer/filer.go                           | 23 +-----
 .../mq/broker/broker_grpc_server_discovery.go | 72 -------------------
 weed/mq/broker/broker_server.go               | 40 ++++++++++-
 6 files changed, 72 insertions(+), 128 deletions(-)
 create mode 100644 weed/cluster/master_client.go
 delete mode 100644 weed/mq/broker/broker_grpc_server_discovery.go

diff --git a/weed/cluster/master_client.go b/weed/cluster/master_client.go
new file mode 100644
index 000000000..b9b1673f3
--- /dev/null
+++ b/weed/cluster/master_client.go
@@ -0,0 +1,34 @@
+package cluster
+
+import (
+	"context"
+	"github.com/chrislusf/seaweedfs/weed/glog"
+	"github.com/chrislusf/seaweedfs/weed/pb"
+	"github.com/chrislusf/seaweedfs/weed/pb/master_pb"
+	"google.golang.org/grpc"
+)
+
+func ListExistingPeerUpdates(master pb.ServerAddress, grpcDialOption grpc.DialOption, filerGroup string, clientType string) (existingNodes []*master_pb.ClusterNodeUpdate) {
+
+	if grpcErr := pb.WithMasterClient(false, master, grpcDialOption, func(client master_pb.SeaweedClient) error {
+		resp, err := client.ListClusterNodes(context.Background(), &master_pb.ListClusterNodesRequest{
+			ClientType: clientType,
+			FilerGroup: filerGroup,
+		})
+
+		glog.V(0).Infof("the cluster has %d %s\n", len(resp.ClusterNodes), clientType)
+		for _, node := range resp.ClusterNodes {
+			existingNodes = append(existingNodes, &master_pb.ClusterNodeUpdate{
+				NodeType:    FilerType,
+				Address:     node.Address,
+				IsLeader:    node.IsLeader,
+				IsAdd:       true,
+				CreatedAtNs: node.CreatedAtNs,
+			})
+		}
+		return err
+	}); grpcErr != nil {
+		glog.V(0).Infof("connect to %s: %v", master, grpcErr)
+	}
+	return
+}
diff --git a/weed/command/mq_broker.go b/weed/command/mq_broker.go
index cce77bf8e..1b31d0141 100644
--- a/weed/command/mq_broker.go
+++ b/weed/command/mq_broker.go
@@ -1,10 +1,6 @@
 package command
 
 import (
-	"context"
-	"fmt"
-	"time"
-
 	"google.golang.org/grpc/reflection"
 
 	"github.com/chrislusf/seaweedfs/weed/util/grace"
@@ -12,7 +8,6 @@ import (
 	"github.com/chrislusf/seaweedfs/weed/glog"
 	"github.com/chrislusf/seaweedfs/weed/mq/broker"
 	"github.com/chrislusf/seaweedfs/weed/pb"
-	"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
 	"github.com/chrislusf/seaweedfs/weed/pb/mq_pb"
 	"github.com/chrislusf/seaweedfs/weed/security"
 	"github.com/chrislusf/seaweedfs/weed/util"
@@ -26,7 +21,6 @@ type MessageQueueBrokerOptions struct {
 	masters       map[string]pb.ServerAddress
 	mastersString *string
 	filerGroup    *string
-	filer         *string
 	ip            *string
 	port          *int
 	dataCenter    *string
@@ -38,7 +32,6 @@ type MessageQueueBrokerOptions struct {
 func init() {
 	cmdMqBroker.Run = runMqBroker // break init cycle
 	mqBrokerStandaloneOptions.mastersString = cmdMqBroker.Flag.String("master", "localhost:9333", "comma-separated master servers")
-	mqBrokerStandaloneOptions.filer = cmdMqBroker.Flag.String("filer", "localhost:8888", "filer server address")
 	mqBrokerStandaloneOptions.filerGroup = cmdMqBroker.Flag.String("filerGroup", "", "share metadata with other filers in the same filerGroup")
 	mqBrokerStandaloneOptions.ip = cmdMqBroker.Flag.String("ip", util.DetectedHostAddress(), "broker host address")
 	mqBrokerStandaloneOptions.port = cmdMqBroker.Flag.Int("port", 17777, "broker gRPC listen port")
@@ -73,40 +66,17 @@ func (mqBrokerOpt *MessageQueueBrokerOptions) startQueueServer() bool {
 
 	grace.SetupProfiling(*mqBrokerStandaloneOptions.cpuprofile, *mqBrokerStandaloneOptions.memprofile)
 
-	filerAddress := pb.ServerAddress(*mqBrokerOpt.filer)
-
 	grpcDialOption := security.LoadClientTLS(util.GetViper(), "grpc.msg_broker")
-	cipher := false
-
-	for {
-		err := pb.WithGrpcFilerClient(false, filerAddress, grpcDialOption, func(client filer_pb.SeaweedFilerClient) error {
-			resp, err := client.GetFilerConfiguration(context.Background(), &filer_pb.GetFilerConfigurationRequest{})
-			if err != nil {
-				return fmt.Errorf("get filer %s configuration: %v", filerAddress, err)
-			}
-			cipher = resp.Cipher
-			return nil
-		})
-		if err != nil {
-			glog.V(0).Infof("wait to connect to filer %s grpc address %s", *mqBrokerOpt.filer, filerAddress.ToGrpcAddress())
-			time.Sleep(time.Second)
-		} else {
-			glog.V(0).Infof("connected to filer %s grpc address %s", *mqBrokerOpt.filer, filerAddress.ToGrpcAddress())
-			break
-		}
-	}
 
 	qs, err := broker.NewMessageBroker(&broker.MessageQueueBrokerOption{
 		Masters:            mqBrokerOpt.masters,
 		FilerGroup:         *mqBrokerOpt.filerGroup,
 		DataCenter:         *mqBrokerOpt.dataCenter,
 		Rack:               *mqBrokerOpt.rack,
-		Filers:             []pb.ServerAddress{filerAddress},
 		DefaultReplication: "",
 		MaxMB:              0,
 		Ip:                 *mqBrokerOpt.ip,
 		Port:               *mqBrokerOpt.port,
-		Cipher:             cipher,
 	}, grpcDialOption)
 
 	// start grpc listener
diff --git a/weed/command/server.go b/weed/command/server.go
index 04b07ed51..b993d9428 100644
--- a/weed/command/server.go
+++ b/weed/command/server.go
@@ -228,7 +228,6 @@ func runServer(cmd *Command, args []string) bool {
 	s3Options.filer = &filerAddress
 	iamOptions.filer = &filerAddress
 	webdavOptions.filer = &filerAddress
-	mqBrokerOptions.filer = &filerAddress
 	mqBrokerOptions.filerGroup = filerOptions.filerGroup
 
 	go stats_collect.StartMetricsServer(*serverMetricsHttpPort)
diff --git a/weed/filer/filer.go b/weed/filer/filer.go
index b1582bd30..386d27898 100644
--- a/weed/filer/filer.go
+++ b/weed/filer/filer.go
@@ -99,28 +99,7 @@ func (f *Filer) AggregateFromPeers(self pb.ServerAddress, existingNodes []*maste
 }
 
 func (f *Filer) ListExistingPeerUpdates() (existingNodes []*master_pb.ClusterNodeUpdate) {
-
-	if grpcErr := pb.WithMasterClient(false, f.MasterClient.GetMaster(), f.GrpcDialOption, func(client master_pb.SeaweedClient) error {
-		resp, err := client.ListClusterNodes(context.Background(), &master_pb.ListClusterNodesRequest{
-			ClientType: cluster.FilerType,
-			FilerGroup: f.MasterClient.FilerGroup,
-		})
-
-		glog.V(0).Infof("the cluster has %d filers\n", len(resp.ClusterNodes))
-		for _, node := range resp.ClusterNodes {
-			existingNodes = append(existingNodes, &master_pb.ClusterNodeUpdate{
-				NodeType:    cluster.FilerType,
-				Address:     node.Address,
-				IsLeader:    node.IsLeader,
-				IsAdd:       true,
-				CreatedAtNs: node.CreatedAtNs,
-			})
-		}
-		return err
-	}); grpcErr != nil {
-		glog.V(0).Infof("connect to %s: %v", f.MasterClient.GetMaster(), grpcErr)
-	}
-	return
+	return cluster.ListExistingPeerUpdates(f.GetMaster(), f.GrpcDialOption, f.MasterClient.FilerGroup, cluster.FilerType)
 }
 
 func (f *Filer) SetStore(store FilerStore) (isFresh bool) {
diff --git a/weed/mq/broker/broker_grpc_server_discovery.go b/weed/mq/broker/broker_grpc_server_discovery.go
deleted file mode 100644
index 94e89cd41..000000000
--- a/weed/mq/broker/broker_grpc_server_discovery.go
+++ /dev/null
@@ -1,72 +0,0 @@
-package broker
-
-import (
-	"context"
-	"github.com/chrislusf/seaweedfs/weed/cluster"
-	"github.com/chrislusf/seaweedfs/weed/pb"
-	"time"
-
-	"github.com/chrislusf/seaweedfs/weed/glog"
-	"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
-	"github.com/chrislusf/seaweedfs/weed/pb/master_pb"
-)
-
-func (broker *MessageQueueBroker) checkFilers() {
-
-	// contact a filer about masters
-	var masters []pb.ServerAddress
-	found := false
-	for !found {
-		for _, filer := range broker.option.Filers {
-			err := broker.withFilerClient(false, filer, func(client filer_pb.SeaweedFilerClient) error {
-				resp, err := client.GetFilerConfiguration(context.Background(), &filer_pb.GetFilerConfigurationRequest{})
-				if err != nil {
-					return err
-				}
-				for _, m := range resp.Masters {
-					masters = append(masters, pb.ServerAddress(m))
-				}
-				return nil
-			})
-			if err == nil {
-				found = true
-				break
-			}
-			glog.V(0).Infof("failed to read masters from %+v: %v", broker.option.Filers, err)
-			time.Sleep(time.Second)
-		}
-	}
-	glog.V(0).Infof("received master list: %s", masters)
-
-	// contact each masters for filers
-	var filers []pb.ServerAddress
-	found = false
-	for !found {
-		for _, master := range masters {
-			err := broker.withMasterClient(false, master, func(client master_pb.SeaweedClient) error {
-				resp, err := client.ListClusterNodes(context.Background(), &master_pb.ListClusterNodesRequest{
-					ClientType: cluster.FilerType,
-				})
-				if err != nil {
-					return err
-				}
-
-				for _, clusterNode := range resp.ClusterNodes {
-					filers = append(filers, pb.ServerAddress(clusterNode.Address))
-				}
-
-				return nil
-			})
-			if err == nil {
-				found = true
-				break
-			}
-			glog.V(0).Infof("failed to list filers: %v", err)
-			time.Sleep(time.Second)
-		}
-	}
-	glog.V(0).Infof("received filer list: %s", filers)
-
-	broker.option.Filers = filers
-
-}
diff --git a/weed/mq/broker/broker_server.go b/weed/mq/broker/broker_server.go
index 64ea7c666..f940b00c3 100644
--- a/weed/mq/broker/broker_server.go
+++ b/weed/mq/broker/broker_server.go
@@ -5,6 +5,7 @@ import (
 	"github.com/chrislusf/seaweedfs/weed/pb/mq_pb"
 	"github.com/chrislusf/seaweedfs/weed/wdclient"
 	"google.golang.org/grpc"
+	"time"
 
 	"github.com/chrislusf/seaweedfs/weed/pb"
 	"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
@@ -16,7 +17,6 @@ type MessageQueueBrokerOption struct {
 	FilerGroup         string
 	DataCenter         string
 	Rack               string
-	Filers             []pb.ServerAddress
 	DefaultReplication string
 	MaxMB              int
 	Ip                 string
@@ -29,6 +29,8 @@ type MessageQueueBroker struct {
 	option         *MessageQueueBrokerOption
 	grpcDialOption grpc.DialOption
 	MasterClient   *wdclient.MasterClient
+	filers         map[pb.ServerAddress]struct{}
+	currentFiler   pb.ServerAddress
 }
 
 func NewMessageBroker(option *MessageQueueBrokerOption, grpcDialOption grpc.DialOption) (mqBroker *MessageQueueBroker, err error) {
@@ -37,15 +39,47 @@ func NewMessageBroker(option *MessageQueueBrokerOption, grpcDialOption grpc.Dial
 		option:         option,
 		grpcDialOption: grpcDialOption,
 		MasterClient:   wdclient.NewMasterClient(grpcDialOption, option.FilerGroup, cluster.BrokerType, pb.NewServerAddress(option.Ip, option.Port, 0), option.DataCenter, option.Rack, option.Masters),
+		filers:         make(map[pb.ServerAddress]struct{}),
 	}
-
-	mqBroker.checkFilers()
+	mqBroker.MasterClient.OnPeerUpdate = mqBroker.OnBrokerUpdate
 
 	go mqBroker.MasterClient.KeepConnectedToMaster()
 
+	existingNodes := cluster.ListExistingPeerUpdates(mqBroker.MasterClient.GetMaster(), grpcDialOption, option.FilerGroup, cluster.FilerType)
+	for _, newNode := range existingNodes {
+		mqBroker.OnBrokerUpdate(newNode, time.Now())
+	}
+
 	return mqBroker, nil
 }
 
+func (broker *MessageQueueBroker) OnBrokerUpdate(update *master_pb.ClusterNodeUpdate, startFrom time.Time) {
+	if update.NodeType != cluster.FilerType {
+		return
+	}
+
+	address := pb.ServerAddress(update.Address)
+	if update.IsAdd {
+		broker.filers[address] = struct{}{}
+		if broker.currentFiler == "" {
+			broker.currentFiler = address
+		}
+	} else {
+		delete(broker.filers, address)
+		if broker.currentFiler == address {
+			for filer, _ := range broker.filers {
+				broker.currentFiler = filer
+				break
+			}
+		}
+	}
+
+}
+
+func (broker *MessageQueueBroker) GetFiler() pb.ServerAddress {
+	return broker.currentFiler
+}
+
 func (broker *MessageQueueBroker) withFilerClient(streamingMode bool, filer pb.ServerAddress, fn func(filer_pb.SeaweedFilerClient) error) error {
 
 	return pb.WithFilerClient(streamingMode, filer, broker.grpcDialOption, fn)

From 113a4546fd36b9a0eb78c4e462f38f7488cf1e88 Mon Sep 17 00:00:00 2001
From: chrislu <chris.lu@gmail.com>
Date: Sat, 16 Jul 2022 10:49:34 -0700
Subject: [PATCH 14/17] segment serde

---
 weed/mq/broker/brokder_grpc_admin.go   |  31 +-
 weed/mq/broker/broker_segment_serde.go |  89 ++++++
 weed/mq/broker/broker_server.go        |  10 +-
 weed/mq/topic.go                       |  32 +-
 weed/pb/mq.proto                       |  10 +
 weed/pb/mq_pb/mq.pb.go                 | 407 ++++++++++++++++---------
 6 files changed, 411 insertions(+), 168 deletions(-)
 create mode 100644 weed/mq/broker/broker_segment_serde.go

diff --git a/weed/mq/broker/brokder_grpc_admin.go b/weed/mq/broker/brokder_grpc_admin.go
index 31b5bb84e..0dfb69c50 100644
--- a/weed/mq/broker/brokder_grpc_admin.go
+++ b/weed/mq/broker/brokder_grpc_admin.go
@@ -53,16 +53,19 @@ func (broker *MessageQueueBroker) AssignSegmentBrokers(c context.Context, reques
 	if err != nil {
 		return ret, err
 	}
-	// good if the segment is still on the brokers
-	isActive, err := broker.checkSegmentsOnBrokers(segment, existingBrokers)
-	if err != nil {
-		return ret, err
-	}
-	if isActive {
-		for _, broker := range existingBrokers {
-			ret.Brokers = append(ret.Brokers, string(broker))
+
+	if len(existingBrokers) > 0 {
+		// good if the segment is still on the brokers
+		isActive, err := broker.checkSegmentsOnBrokers(segment, existingBrokers)
+		if err != nil {
+			return ret, err
+		}
+		if isActive {
+			for _, broker := range existingBrokers {
+				ret.Brokers = append(ret.Brokers, string(broker))
+			}
+			return ret, nil
 		}
-		return ret, nil
 	}
 
 	// randomly pick up to 10 brokers, and find the ones with the lightest load
@@ -72,7 +75,7 @@ func (broker *MessageQueueBroker) AssignSegmentBrokers(c context.Context, reques
 	}
 
 	// save the allocated brokers info for this segment on the filer
-	if err := broker.saveSegmentOnFiler(segment, selectedBrokers); err != nil {
+	if err := broker.saveSegmentBrokersOnFiler(segment, selectedBrokers); err != nil {
 		return ret, err
 	}
 
@@ -82,10 +85,6 @@ func (broker *MessageQueueBroker) AssignSegmentBrokers(c context.Context, reques
 	return ret, nil
 }
 
-func (broker *MessageQueueBroker) checkSegmentOnFiler(segment *mq.Segment) (brokers []pb.ServerAddress, err error) {
-	return
-}
-
 func (broker *MessageQueueBroker) checkSegmentsOnBrokers(segment *mq.Segment, brokers []pb.ServerAddress) (active bool, err error) {
 	var wg sync.WaitGroup
 
@@ -206,7 +205,3 @@ func (broker *MessageQueueBroker) checkBrokerStatus(candidates []pb.ServerAddres
 	wg.Wait()
 	return
 }
-
-func (broker *MessageQueueBroker) saveSegmentOnFiler(segment *mq.Segment, brokers []pb.ServerAddress) (err error) {
-	return
-}
diff --git a/weed/mq/broker/broker_segment_serde.go b/weed/mq/broker/broker_segment_serde.go
new file mode 100644
index 000000000..25fca005b
--- /dev/null
+++ b/weed/mq/broker/broker_segment_serde.go
@@ -0,0 +1,89 @@
+package broker
+
+import (
+	"bytes"
+	"fmt"
+	"github.com/chrislusf/seaweedfs/weed/filer"
+	"github.com/chrislusf/seaweedfs/weed/mq"
+	"github.com/chrislusf/seaweedfs/weed/pb"
+	"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
+	"github.com/chrislusf/seaweedfs/weed/pb/mq_pb"
+	"github.com/golang/protobuf/jsonpb"
+	"time"
+)
+
+func (broker *MessageQueueBroker) checkSegmentOnFiler(segment *mq.Segment) (brokers []pb.ServerAddress, err error) {
+	info, found, err := broker.readSegmentOnFiler(segment)
+	if err != nil {
+		return
+	}
+	if !found {
+		return
+	}
+	for _, b := range info.Brokers {
+		brokers = append(brokers, pb.ServerAddress(b))
+	}
+
+	return
+}
+
+func (broker *MessageQueueBroker) saveSegmentBrokersOnFiler(segment *mq.Segment, brokers []pb.ServerAddress) (err error) {
+	var nodes []string
+	for _, b := range brokers {
+		nodes = append(nodes, string(b))
+	}
+	broker.saveSegmentToFiler(segment, &mq_pb.SegmentInfo{
+		Segment:          segment.ToPbSegment(),
+		StartTsNs:        time.Now().UnixNano(),
+		Brokers:          nodes,
+		StopTsNs:         0,
+		PreviousSegments: nil,
+		NextSegments:     nil,
+	})
+	return
+}
+
+func (broker *MessageQueueBroker) readSegmentOnFiler(segment *mq.Segment) (info *mq_pb.SegmentInfo, found bool, err error) {
+	dir, name := segment.DirAndName()
+
+	found, err = filer_pb.Exists(broker, dir, name, false)
+	if !found || err != nil {
+		return
+	}
+
+	err = pb.WithFilerClient(false, broker.GetFiler(), broker.grpcDialOption, func(client filer_pb.SeaweedFilerClient) error {
+		// read filer conf first
+		data, err := filer.ReadInsideFiler(client, dir, name)
+		if err != nil {
+			return fmt.Errorf("ReadEntry: %v", err)
+		}
+
+		// parse into filer conf object
+		info = &mq_pb.SegmentInfo{}
+		if err = jsonpb.Unmarshal(bytes.NewReader(data), info); err != nil {
+			return err
+		}
+		found = true
+		return nil
+	})
+
+	return
+}
+
+func (broker *MessageQueueBroker) saveSegmentToFiler(segment *mq.Segment, info *mq_pb.SegmentInfo) (err error) {
+	dir, name := segment.DirAndName()
+
+	var buf bytes.Buffer
+	filer.ProtoToText(&buf, info)
+
+	err = pb.WithFilerClient(false, broker.GetFiler(), broker.grpcDialOption, func(client filer_pb.SeaweedFilerClient) error {
+		// read filer conf first
+		err := filer.SaveInsideFiler(client, dir, name, buf.Bytes())
+		if err != nil {
+			return fmt.Errorf("save segment info: %v", err)
+		}
+		return nil
+	})
+
+	return
+}
diff --git a/weed/mq/broker/broker_server.go b/weed/mq/broker/broker_server.go
index f940b00c3..b95db0ecf 100644
--- a/weed/mq/broker/broker_server.go
+++ b/weed/mq/broker/broker_server.go
@@ -80,9 +80,15 @@ func (broker *MessageQueueBroker) GetFiler() pb.ServerAddress {
 	return broker.currentFiler
 }
 
-func (broker *MessageQueueBroker) withFilerClient(streamingMode bool, filer pb.ServerAddress, fn func(filer_pb.SeaweedFilerClient) error) error {
+func (broker *MessageQueueBroker) WithFilerClient(streamingMode bool, fn func(filer_pb.SeaweedFilerClient) error) error {
 
-	return pb.WithFilerClient(streamingMode, filer, broker.grpcDialOption, fn)
+	return pb.WithFilerClient(streamingMode, broker.GetFiler(), broker.grpcDialOption, fn)
+
+}
+
+func (broker *MessageQueueBroker) AdjustedUrl(location *filer_pb.Location) string {
+
+	return location.Url
 
 }
 
diff --git a/weed/mq/topic.go b/weed/mq/topic.go
index 87621fca7..12a749133 100644
--- a/weed/mq/topic.go
+++ b/weed/mq/topic.go
@@ -1,6 +1,8 @@
 package mq
 
 import (
+	"fmt"
+	"github.com/chrislusf/seaweedfs/weed/filer"
 	"github.com/chrislusf/seaweedfs/weed/pb/mq_pb"
 	"time"
 )
@@ -13,9 +15,9 @@ type Topic struct {
 }
 
 type Partition struct {
-	RangeStart int
-	RangeStop  int // exclusive
-	RingSize   int
+	RangeStart int32
+	RangeStop  int32 // exclusive
+	RingSize   int32
 }
 
 type Segment struct {
@@ -32,5 +34,29 @@ func FromPbSegment(segment *mq_pb.Segment) *Segment {
 			Name:      segment.Topic,
 		},
 		Id: segment.Id,
+		Partition: Partition{
+			RangeStart: segment.Partition.RangeStart,
+			RangeStop:  segment.Partition.RangeStop,
+			RingSize:   segment.Partition.RingSize,
+		},
 	}
 }
+
+func (segment *Segment) ToPbSegment() *mq_pb.Segment {
+	return &mq_pb.Segment{
+		Namespace: string(segment.Topic.Namespace),
+		Topic:     segment.Topic.Name,
+		Id:        segment.Id,
+		Partition: &mq_pb.Partition{
+			RingSize:   segment.Partition.RingSize,
+			RangeStart: segment.Partition.RangeStart,
+			RangeStop:  segment.Partition.RangeStop,
+		},
+	}
+}
+
+func (segment *Segment) DirAndName() (dir string, name string) {
+	dir = fmt.Sprintf("%s/%s/%s", filer.TopicsDir, segment.Topic.Namespace, segment.Topic.Name)
+	name = fmt.Sprintf("%4d.segment", segment.Id)
+	return
+}
diff --git a/weed/pb/mq.proto b/weed/pb/mq.proto
index 1f91170fd..2cbe79839 100644
--- a/weed/pb/mq.proto
+++ b/weed/pb/mq.proto
@@ -21,6 +21,16 @@ service SeaweedMessaging {
 
 }
 
+//////////////////////////////////////////////////
+message SegmentInfo {
+    Segment segment = 1;
+    int64 start_ts_ns = 2;
+    repeated string brokers = 3;
+    int64 stop_ts_ns = 4;
+    repeated int32 previous_segments = 5;
+    repeated int32 next_segments = 6;
+}
+
 //////////////////////////////////////////////////
 
 message FindBrokerLeaderRequest {
diff --git a/weed/pb/mq_pb/mq.pb.go b/weed/pb/mq_pb/mq.pb.go
index e305ba8d0..3323179ee 100644
--- a/weed/pb/mq_pb/mq.pb.go
+++ b/weed/pb/mq_pb/mq.pb.go
@@ -20,6 +20,94 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
+//////////////////////////////////////////////////
+type SegmentInfo struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Segment          *Segment `protobuf:"bytes,1,opt,name=segment,proto3" json:"segment,omitempty"`
+	StartTsNs        int64    `protobuf:"varint,2,opt,name=start_ts_ns,json=startTsNs,proto3" json:"start_ts_ns,omitempty"`
+	Brokers          []string `protobuf:"bytes,3,rep,name=brokers,proto3" json:"brokers,omitempty"`
+	StopTsNs         int64    `protobuf:"varint,4,opt,name=stop_ts_ns,json=stopTsNs,proto3" json:"stop_ts_ns,omitempty"`
+	PreviousSegments []int32  `protobuf:"varint,5,rep,packed,name=previous_segments,json=previousSegments,proto3" json:"previous_segments,omitempty"`
+	NextSegments     []int32  `protobuf:"varint,6,rep,packed,name=next_segments,json=nextSegments,proto3" json:"next_segments,omitempty"`
+}
+
+func (x *SegmentInfo) Reset() {
+	*x = SegmentInfo{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_mq_proto_msgTypes[0]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *SegmentInfo) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*SegmentInfo) ProtoMessage() {}
+
+func (x *SegmentInfo) ProtoReflect() protoreflect.Message {
+	mi := &file_mq_proto_msgTypes[0]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use SegmentInfo.ProtoReflect.Descriptor instead.
+func (*SegmentInfo) Descriptor() ([]byte, []int) {
+	return file_mq_proto_rawDescGZIP(), []int{0}
+}
+
+func (x *SegmentInfo) GetSegment() *Segment {
+	if x != nil {
+		return x.Segment
+	}
+	return nil
+}
+
+func (x *SegmentInfo) GetStartTsNs() int64 {
+	if x != nil {
+		return x.StartTsNs
+	}
+	return 0
+}
+
+func (x *SegmentInfo) GetBrokers() []string {
+	if x != nil {
+		return x.Brokers
+	}
+	return nil
+}
+
+func (x *SegmentInfo) GetStopTsNs() int64 {
+	if x != nil {
+		return x.StopTsNs
+	}
+	return 0
+}
+
+func (x *SegmentInfo) GetPreviousSegments() []int32 {
+	if x != nil {
+		return x.PreviousSegments
+	}
+	return nil
+}
+
+func (x *SegmentInfo) GetNextSegments() []int32 {
+	if x != nil {
+		return x.NextSegments
+	}
+	return nil
+}
+
 type FindBrokerLeaderRequest struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -31,7 +119,7 @@ type FindBrokerLeaderRequest struct {
 func (x *FindBrokerLeaderRequest) Reset() {
 	*x = FindBrokerLeaderRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_mq_proto_msgTypes[0]
+		mi := &file_mq_proto_msgTypes[1]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -44,7 +132,7 @@ func (x *FindBrokerLeaderRequest) String() string {
 func (*FindBrokerLeaderRequest) ProtoMessage() {}
 
 func (x *FindBrokerLeaderRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_mq_proto_msgTypes[0]
+	mi := &file_mq_proto_msgTypes[1]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -57,7 +145,7 @@ func (x *FindBrokerLeaderRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use FindBrokerLeaderRequest.ProtoReflect.Descriptor instead.
 func (*FindBrokerLeaderRequest) Descriptor() ([]byte, []int) {
-	return file_mq_proto_rawDescGZIP(), []int{0}
+	return file_mq_proto_rawDescGZIP(), []int{1}
 }
 
 func (x *FindBrokerLeaderRequest) GetFilerGroup() string {
@@ -78,7 +166,7 @@ type FindBrokerLeaderResponse struct {
 func (x *FindBrokerLeaderResponse) Reset() {
 	*x = FindBrokerLeaderResponse{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_mq_proto_msgTypes[1]
+		mi := &file_mq_proto_msgTypes[2]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -91,7 +179,7 @@ func (x *FindBrokerLeaderResponse) String() string {
 func (*FindBrokerLeaderResponse) ProtoMessage() {}
 
 func (x *FindBrokerLeaderResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_mq_proto_msgTypes[1]
+	mi := &file_mq_proto_msgTypes[2]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -104,7 +192,7 @@ func (x *FindBrokerLeaderResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use FindBrokerLeaderResponse.ProtoReflect.Descriptor instead.
 func (*FindBrokerLeaderResponse) Descriptor() ([]byte, []int) {
-	return file_mq_proto_rawDescGZIP(), []int{1}
+	return file_mq_proto_rawDescGZIP(), []int{2}
 }
 
 func (x *FindBrokerLeaderResponse) GetBroker() string {
@@ -127,7 +215,7 @@ type Partition struct {
 func (x *Partition) Reset() {
 	*x = Partition{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_mq_proto_msgTypes[2]
+		mi := &file_mq_proto_msgTypes[3]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -140,7 +228,7 @@ func (x *Partition) String() string {
 func (*Partition) ProtoMessage() {}
 
 func (x *Partition) ProtoReflect() protoreflect.Message {
-	mi := &file_mq_proto_msgTypes[2]
+	mi := &file_mq_proto_msgTypes[3]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -153,7 +241,7 @@ func (x *Partition) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use Partition.ProtoReflect.Descriptor instead.
 func (*Partition) Descriptor() ([]byte, []int) {
-	return file_mq_proto_rawDescGZIP(), []int{2}
+	return file_mq_proto_rawDescGZIP(), []int{3}
 }
 
 func (x *Partition) GetRingSize() int32 {
@@ -191,7 +279,7 @@ type Segment struct {
 func (x *Segment) Reset() {
 	*x = Segment{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_mq_proto_msgTypes[3]
+		mi := &file_mq_proto_msgTypes[4]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -204,7 +292,7 @@ func (x *Segment) String() string {
 func (*Segment) ProtoMessage() {}
 
 func (x *Segment) ProtoReflect() protoreflect.Message {
-	mi := &file_mq_proto_msgTypes[3]
+	mi := &file_mq_proto_msgTypes[4]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -217,7 +305,7 @@ func (x *Segment) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use Segment.ProtoReflect.Descriptor instead.
 func (*Segment) Descriptor() ([]byte, []int) {
-	return file_mq_proto_rawDescGZIP(), []int{3}
+	return file_mq_proto_rawDescGZIP(), []int{4}
 }
 
 func (x *Segment) GetNamespace() string {
@@ -259,7 +347,7 @@ type AssignSegmentBrokersRequest struct {
 func (x *AssignSegmentBrokersRequest) Reset() {
 	*x = AssignSegmentBrokersRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_mq_proto_msgTypes[4]
+		mi := &file_mq_proto_msgTypes[5]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -272,7 +360,7 @@ func (x *AssignSegmentBrokersRequest) String() string {
 func (*AssignSegmentBrokersRequest) ProtoMessage() {}
 
 func (x *AssignSegmentBrokersRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_mq_proto_msgTypes[4]
+	mi := &file_mq_proto_msgTypes[5]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -285,7 +373,7 @@ func (x *AssignSegmentBrokersRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use AssignSegmentBrokersRequest.ProtoReflect.Descriptor instead.
 func (*AssignSegmentBrokersRequest) Descriptor() ([]byte, []int) {
-	return file_mq_proto_rawDescGZIP(), []int{4}
+	return file_mq_proto_rawDescGZIP(), []int{5}
 }
 
 func (x *AssignSegmentBrokersRequest) GetSegment() *Segment {
@@ -306,7 +394,7 @@ type AssignSegmentBrokersResponse struct {
 func (x *AssignSegmentBrokersResponse) Reset() {
 	*x = AssignSegmentBrokersResponse{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_mq_proto_msgTypes[5]
+		mi := &file_mq_proto_msgTypes[6]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -319,7 +407,7 @@ func (x *AssignSegmentBrokersResponse) String() string {
 func (*AssignSegmentBrokersResponse) ProtoMessage() {}
 
 func (x *AssignSegmentBrokersResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_mq_proto_msgTypes[5]
+	mi := &file_mq_proto_msgTypes[6]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -332,7 +420,7 @@ func (x *AssignSegmentBrokersResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use AssignSegmentBrokersResponse.ProtoReflect.Descriptor instead.
 func (*AssignSegmentBrokersResponse) Descriptor() ([]byte, []int) {
-	return file_mq_proto_rawDescGZIP(), []int{5}
+	return file_mq_proto_rawDescGZIP(), []int{6}
 }
 
 func (x *AssignSegmentBrokersResponse) GetBrokers() []string {
@@ -353,7 +441,7 @@ type CheckSegmentStatusRequest struct {
 func (x *CheckSegmentStatusRequest) Reset() {
 	*x = CheckSegmentStatusRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_mq_proto_msgTypes[6]
+		mi := &file_mq_proto_msgTypes[7]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -366,7 +454,7 @@ func (x *CheckSegmentStatusRequest) String() string {
 func (*CheckSegmentStatusRequest) ProtoMessage() {}
 
 func (x *CheckSegmentStatusRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_mq_proto_msgTypes[6]
+	mi := &file_mq_proto_msgTypes[7]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -379,7 +467,7 @@ func (x *CheckSegmentStatusRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use CheckSegmentStatusRequest.ProtoReflect.Descriptor instead.
 func (*CheckSegmentStatusRequest) Descriptor() ([]byte, []int) {
-	return file_mq_proto_rawDescGZIP(), []int{6}
+	return file_mq_proto_rawDescGZIP(), []int{7}
 }
 
 func (x *CheckSegmentStatusRequest) GetSegment() *Segment {
@@ -400,7 +488,7 @@ type CheckSegmentStatusResponse struct {
 func (x *CheckSegmentStatusResponse) Reset() {
 	*x = CheckSegmentStatusResponse{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_mq_proto_msgTypes[7]
+		mi := &file_mq_proto_msgTypes[8]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -413,7 +501,7 @@ func (x *CheckSegmentStatusResponse) String() string {
 func (*CheckSegmentStatusResponse) ProtoMessage() {}
 
 func (x *CheckSegmentStatusResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_mq_proto_msgTypes[7]
+	mi := &file_mq_proto_msgTypes[8]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -426,7 +514,7 @@ func (x *CheckSegmentStatusResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use CheckSegmentStatusResponse.ProtoReflect.Descriptor instead.
 func (*CheckSegmentStatusResponse) Descriptor() ([]byte, []int) {
-	return file_mq_proto_rawDescGZIP(), []int{7}
+	return file_mq_proto_rawDescGZIP(), []int{8}
 }
 
 func (x *CheckSegmentStatusResponse) GetIsActive() bool {
@@ -445,7 +533,7 @@ type CheckBrokerLoadRequest struct {
 func (x *CheckBrokerLoadRequest) Reset() {
 	*x = CheckBrokerLoadRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_mq_proto_msgTypes[8]
+		mi := &file_mq_proto_msgTypes[9]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -458,7 +546,7 @@ func (x *CheckBrokerLoadRequest) String() string {
 func (*CheckBrokerLoadRequest) ProtoMessage() {}
 
 func (x *CheckBrokerLoadRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_mq_proto_msgTypes[8]
+	mi := &file_mq_proto_msgTypes[9]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -471,7 +559,7 @@ func (x *CheckBrokerLoadRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use CheckBrokerLoadRequest.ProtoReflect.Descriptor instead.
 func (*CheckBrokerLoadRequest) Descriptor() ([]byte, []int) {
-	return file_mq_proto_rawDescGZIP(), []int{8}
+	return file_mq_proto_rawDescGZIP(), []int{9}
 }
 
 type CheckBrokerLoadResponse struct {
@@ -486,7 +574,7 @@ type CheckBrokerLoadResponse struct {
 func (x *CheckBrokerLoadResponse) Reset() {
 	*x = CheckBrokerLoadResponse{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_mq_proto_msgTypes[9]
+		mi := &file_mq_proto_msgTypes[10]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -499,7 +587,7 @@ func (x *CheckBrokerLoadResponse) String() string {
 func (*CheckBrokerLoadResponse) ProtoMessage() {}
 
 func (x *CheckBrokerLoadResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_mq_proto_msgTypes[9]
+	mi := &file_mq_proto_msgTypes[10]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -512,7 +600,7 @@ func (x *CheckBrokerLoadResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use CheckBrokerLoadResponse.ProtoReflect.Descriptor instead.
 func (*CheckBrokerLoadResponse) Descriptor() ([]byte, []int) {
-	return file_mq_proto_rawDescGZIP(), []int{9}
+	return file_mq_proto_rawDescGZIP(), []int{10}
 }
 
 func (x *CheckBrokerLoadResponse) GetMessageCount() int64 {
@@ -533,87 +621,102 @@ var File_mq_proto protoreflect.FileDescriptor
 
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+	0x6f, 0x33,
 }
 
 var (
@@ -628,36 +731,38 @@ func file_mq_proto_rawDescGZIP() []byte {
 	return file_mq_proto_rawDescData
 }
 
-var file_mq_proto_msgTypes = make([]protoimpl.MessageInfo, 10)
+var file_mq_proto_msgTypes = make([]protoimpl.MessageInfo, 11)
 var file_mq_proto_goTypes = []interface{}{
-	(*FindBrokerLeaderRequest)(nil),      // 0: messaging_pb.FindBrokerLeaderRequest
-	(*FindBrokerLeaderResponse)(nil),     // 1: messaging_pb.FindBrokerLeaderResponse
-	(*Partition)(nil),                    // 2: messaging_pb.Partition
-	(*Segment)(nil),                      // 3: messaging_pb.Segment
-	(*AssignSegmentBrokersRequest)(nil),  // 4: messaging_pb.AssignSegmentBrokersRequest
-	(*AssignSegmentBrokersResponse)(nil), // 5: messaging_pb.AssignSegmentBrokersResponse
-	(*CheckSegmentStatusRequest)(nil),    // 6: messaging_pb.CheckSegmentStatusRequest
-	(*CheckSegmentStatusResponse)(nil),   // 7: messaging_pb.CheckSegmentStatusResponse
-	(*CheckBrokerLoadRequest)(nil),       // 8: messaging_pb.CheckBrokerLoadRequest
-	(*CheckBrokerLoadResponse)(nil),      // 9: messaging_pb.CheckBrokerLoadResponse
+	(*SegmentInfo)(nil),                  // 0: messaging_pb.SegmentInfo
+	(*FindBrokerLeaderRequest)(nil),      // 1: messaging_pb.FindBrokerLeaderRequest
+	(*FindBrokerLeaderResponse)(nil),     // 2: messaging_pb.FindBrokerLeaderResponse
+	(*Partition)(nil),                    // 3: messaging_pb.Partition
+	(*Segment)(nil),                      // 4: messaging_pb.Segment
+	(*AssignSegmentBrokersRequest)(nil),  // 5: messaging_pb.AssignSegmentBrokersRequest
+	(*AssignSegmentBrokersResponse)(nil), // 6: messaging_pb.AssignSegmentBrokersResponse
+	(*CheckSegmentStatusRequest)(nil),    // 7: messaging_pb.CheckSegmentStatusRequest
+	(*CheckSegmentStatusResponse)(nil),   // 8: messaging_pb.CheckSegmentStatusResponse
+	(*CheckBrokerLoadRequest)(nil),       // 9: messaging_pb.CheckBrokerLoadRequest
+	(*CheckBrokerLoadResponse)(nil),      // 10: messaging_pb.CheckBrokerLoadResponse
 }
 var file_mq_proto_depIdxs = []int32{
-	2, // 0: messaging_pb.Segment.partition:type_name -> messaging_pb.Partition
-	3, // 1: messaging_pb.AssignSegmentBrokersRequest.segment:type_name -> messaging_pb.Segment
-	3, // 2: messaging_pb.CheckSegmentStatusRequest.segment:type_name -> messaging_pb.Segment
-	0, // 3: messaging_pb.SeaweedMessaging.FindBrokerLeader:input_type -> messaging_pb.FindBrokerLeaderRequest
-	4, // 4: messaging_pb.SeaweedMessaging.AssignSegmentBrokers:input_type -> messaging_pb.AssignSegmentBrokersRequest
-	6, // 5: messaging_pb.SeaweedMessaging.CheckSegmentStatus:input_type -> messaging_pb.CheckSegmentStatusRequest
-	8, // 6: messaging_pb.SeaweedMessaging.CheckBrokerLoad:input_type -> messaging_pb.CheckBrokerLoadRequest
-	1, // 7: messaging_pb.SeaweedMessaging.FindBrokerLeader:output_type -> messaging_pb.FindBrokerLeaderResponse
-	5, // 8: messaging_pb.SeaweedMessaging.AssignSegmentBrokers:output_type -> messaging_pb.AssignSegmentBrokersResponse
-	7, // 9: messaging_pb.SeaweedMessaging.CheckSegmentStatus:output_type -> messaging_pb.CheckSegmentStatusResponse
-	9, // 10: messaging_pb.SeaweedMessaging.CheckBrokerLoad:output_type -> messaging_pb.CheckBrokerLoadResponse
-	7, // [7:11] is the sub-list for method output_type
-	3, // [3:7] is the sub-list for method input_type
-	3, // [3:3] is the sub-list for extension type_name
-	3, // [3:3] is the sub-list for extension extendee
-	0, // [0:3] is the sub-list for field type_name
+	4,  // 0: messaging_pb.SegmentInfo.segment:type_name -> messaging_pb.Segment
+	3,  // 1: messaging_pb.Segment.partition:type_name -> messaging_pb.Partition
+	4,  // 2: messaging_pb.AssignSegmentBrokersRequest.segment:type_name -> messaging_pb.Segment
+	4,  // 3: messaging_pb.CheckSegmentStatusRequest.segment:type_name -> messaging_pb.Segment
+	1,  // 4: messaging_pb.SeaweedMessaging.FindBrokerLeader:input_type -> messaging_pb.FindBrokerLeaderRequest
+	5,  // 5: messaging_pb.SeaweedMessaging.AssignSegmentBrokers:input_type -> messaging_pb.AssignSegmentBrokersRequest
+	7,  // 6: messaging_pb.SeaweedMessaging.CheckSegmentStatus:input_type -> messaging_pb.CheckSegmentStatusRequest
+	9,  // 7: messaging_pb.SeaweedMessaging.CheckBrokerLoad:input_type -> messaging_pb.CheckBrokerLoadRequest
+	2,  // 8: messaging_pb.SeaweedMessaging.FindBrokerLeader:output_type -> messaging_pb.FindBrokerLeaderResponse
+	6,  // 9: messaging_pb.SeaweedMessaging.AssignSegmentBrokers:output_type -> messaging_pb.AssignSegmentBrokersResponse
+	8,  // 10: messaging_pb.SeaweedMessaging.CheckSegmentStatus:output_type -> messaging_pb.CheckSegmentStatusResponse
+	10, // 11: messaging_pb.SeaweedMessaging.CheckBrokerLoad:output_type -> messaging_pb.CheckBrokerLoadResponse
+	8,  // [8:12] is the sub-list for method output_type
+	4,  // [4:8] is the sub-list for method input_type
+	4,  // [4:4] is the sub-list for extension type_name
+	4,  // [4:4] is the sub-list for extension extendee
+	0,  // [0:4] is the sub-list for field type_name
 }
 
 func init() { file_mq_proto_init() }
@@ -667,7 +772,7 @@ func file_mq_proto_init() {
 	}
 	if !protoimpl.UnsafeEnabled {
 		file_mq_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*FindBrokerLeaderRequest); i {
+			switch v := v.(*SegmentInfo); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -679,7 +784,7 @@ func file_mq_proto_init() {
 			}
 		}
 		file_mq_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*FindBrokerLeaderResponse); i {
+			switch v := v.(*FindBrokerLeaderRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -691,7 +796,7 @@ func file_mq_proto_init() {
 			}
 		}
 		file_mq_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*Partition); i {
+			switch v := v.(*FindBrokerLeaderResponse); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -703,7 +808,7 @@ func file_mq_proto_init() {
 			}
 		}
 		file_mq_proto_msgTypes[3].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*Segment); i {
+			switch v := v.(*Partition); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -715,7 +820,7 @@ func file_mq_proto_init() {
 			}
 		}
 		file_mq_proto_msgTypes[4].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*AssignSegmentBrokersRequest); i {
+			switch v := v.(*Segment); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -727,7 +832,7 @@ func file_mq_proto_init() {
 			}
 		}
 		file_mq_proto_msgTypes[5].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*AssignSegmentBrokersResponse); i {
+			switch v := v.(*AssignSegmentBrokersRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -739,7 +844,7 @@ func file_mq_proto_init() {
 			}
 		}
 		file_mq_proto_msgTypes[6].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*CheckSegmentStatusRequest); i {
+			switch v := v.(*AssignSegmentBrokersResponse); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -751,7 +856,7 @@ func file_mq_proto_init() {
 			}
 		}
 		file_mq_proto_msgTypes[7].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*CheckSegmentStatusResponse); i {
+			switch v := v.(*CheckSegmentStatusRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -763,7 +868,7 @@ func file_mq_proto_init() {
 			}
 		}
 		file_mq_proto_msgTypes[8].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*CheckBrokerLoadRequest); i {
+			switch v := v.(*CheckSegmentStatusResponse); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -775,6 +880,18 @@ func file_mq_proto_init() {
 			}
 		}
 		file_mq_proto_msgTypes[9].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*CheckBrokerLoadRequest); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_mq_proto_msgTypes[10].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*CheckBrokerLoadResponse); i {
 			case 0:
 				return &v.state
@@ -793,7 +910,7 @@ func file_mq_proto_init() {
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: file_mq_proto_rawDesc,
 			NumEnums:      0,
-			NumMessages:   10,
+			NumMessages:   11,
 			NumExtensions: 0,
 			NumServices:   1,
 		},

From 1f2c5ee06ecd54f46169440a56be07c3081407b7 Mon Sep 17 00:00:00 2001
From: chrislu <chris.lu@gmail.com>
Date: Sat, 16 Jul 2022 12:07:31 -0700
Subject: [PATCH 15/17] add an empty placeholder for mq.topic.list

---
 weed/shell/command_mq_topic_list.go | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)
 create mode 100644 weed/shell/command_mq_topic_list.go

diff --git a/weed/shell/command_mq_topic_list.go b/weed/shell/command_mq_topic_list.go
new file mode 100644
index 000000000..a069b0614
--- /dev/null
+++ b/weed/shell/command_mq_topic_list.go
@@ -0,0 +1,28 @@
+package shell
+
+import (
+	"fmt"
+	"io"
+)
+
+func init() {
+	Commands = append(Commands, &commandMqTopicList{})
+}
+
+type commandMqTopicList struct {
+}
+
+func (c *commandMqTopicList) Name() string {
+	return "mq.topic.list"
+}
+
+func (c *commandMqTopicList) Help() string {
+	return `print out all topics`
+}
+
+func (c *commandMqTopicList) Do(args []string, commandEnv *CommandEnv, writer io.Writer) (err error) {
+
+	fmt.Fprintf(writer, "%s\n", commandEnv.option.Directory)
+
+	return nil
+}

From 7f672b37e166a97fc652a40c7fc41d03f1d6e690 Mon Sep 17 00:00:00 2001
From: chrislu <chris.lu@gmail.com>
Date: Mon, 18 Jul 2022 00:25:14 -0700
Subject: [PATCH 16/17] add flatbuffer serde for message

---
 go.mod                                |   1 +
 go.sum                                |   2 +
 weed/mq/README.md                     |  66 ++++++++++
 weed/mq/segment/message_serde.go      |  48 +++++++
 weed/mq/segment/message_serde_test.go |  47 +++++++
 weed/mq/segment/segment_serde.go      |   1 +
 weed/pb/Makefile                      |   3 +
 weed/pb/message.fbs                   |  15 +++
 weed/pb/message_fbs/Message.go        | 179 ++++++++++++++++++++++++++
 weed/pb/message_fbs/NameValue.go      |  63 +++++++++
 10 files changed, 425 insertions(+)
 create mode 100644 weed/mq/README.md
 create mode 100644 weed/mq/segment/message_serde.go
 create mode 100644 weed/mq/segment/message_serde_test.go
 create mode 100644 weed/mq/segment/segment_serde.go
 create mode 100644 weed/pb/message.fbs
 create mode 100644 weed/pb/message_fbs/Message.go
 create mode 100644 weed/pb/message_fbs/NameValue.go

diff --git a/go.mod b/go.mod
index fc956e42a..64e051b49 100644
--- a/go.mod
+++ b/go.mod
@@ -184,6 +184,7 @@ require (
 	github.com/fatih/color v1.13.0 // indirect
 	github.com/fclairamb/go-log v0.3.0 // indirect
 	github.com/gogo/protobuf v1.3.2 // indirect
+	github.com/google/flatbuffers v2.0.6+incompatible // indirect
 	github.com/googleapis/enterprise-certificate-proxy v0.1.0 // indirect
 	github.com/googleapis/go-type-adapters v1.0.0 // indirect
 	github.com/grpc-ecosystem/go-grpc-middleware v1.1.0 // indirect
diff --git a/go.sum b/go.sum
index 22a9a1ac4..93070fccc 100644
--- a/go.sum
+++ b/go.sum
@@ -415,6 +415,8 @@ github.com/google/btree v0.0.0-20180813153112-4030bb1f1f0c/go.mod h1:lNA+9X1NB3Z
 github.com/google/btree v1.0.0/go.mod h1:lNA+9X1NB3Zf8V7Ke586lFgjr2dZNuvo3lPJSGZ5JPQ=
 github.com/google/btree v1.1.2 h1:xf4v41cLI2Z6FxbKm+8Bu+m8ifhj15JuZ9sa0jZCMUU=
 github.com/google/btree v1.1.2/go.mod h1:qOPhT0dTNdNzV6Z/lhRX0YXUafgPLFUh+gZMl761Gm4=
+github.com/google/flatbuffers v2.0.6+incompatible h1:XHFReMv7nFFusa+CEokzWbzaYocKXI6C7hdU5Kgh9Lw=
+github.com/google/flatbuffers v2.0.6+incompatible/go.mod h1:1AeVuKshWv4vARoZatz6mlQ0JxURH0Kv5+zNeJKJCa8=
 github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M=
 github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
 github.com/google/go-cmp v0.3.1/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
diff --git a/weed/mq/README.md b/weed/mq/README.md
new file mode 100644
index 000000000..2f1127869
--- /dev/null
+++ b/weed/mq/README.md
@@ -0,0 +1,66 @@
+# SeaweedMQ Message Queue on SeaweedFS (WIP, not ready)
+
+## What are the use cases it is designed for?
+
+Message queues are like water pipes. Messages flow in the pipes to their destinations.
+
+However, what if a flood comes? Of course, you can increase the number of partitions, add more brokers, restart, 
+and watch the traffic level closely.
+
+Sometimes the flood is expected. For example, backfill some old data in batch, and switch to online messages. 
+You may want to ensure enough brokers to handle the data and reduce them later to cut cost.
+
+SeaweedMQ is designed for use cases that need to:
+* Receive and save large number of messages.
+* Handle spike traffic automatically.
+
+## What is special about SeaweedMQ?
+
+* Separate computation and storage nodes that scales independently.
+  * Offline messages can be operated as normal files.
+  * Unlimited storage space by adding volume servers.
+  * Unlimited message brokers.
+* Scale up and down with auto split and merge message topics.
+  * Topics can automatically split into segments when traffic increases, and vice verse.
+  * 
+
+# Design
+
+# How it works?
+
+Brokers are just computation nodes without storage. When a broker starts, it reports itself to masters.
+Among all the brokers, one of them will be selected as the leader by the masters.
+
+A topic needs to define its partition key on its messages.
+
+Messages for a topic are divided into segments. 
+
+During write time, the client will ask the broker leader for a few brokers to process the segment.
+
+The broker leader will check whether the segment already has assigned the brokers. If not, select a few based
+on their loads, save the selection into filer, and tell the client.
+
+The client will write the messages for this segment to the selected brokers.
+
+## Failover
+
+The broker leader does not contain any state. If it fails, the masters will select a different broker.
+
+For a segment, if any one of the selected brokers is down, the remaining brokers should try to write received messages
+to the filer, and close the segment to the clients.
+
+Then the clients should start a new segment. The masters should other healthy brokers to handle the new segment.
+
+So any brokers can go down without losing data.
+
+## Auto Split or Merge
+
+(The idea is learned from Pravega.)
+
+The brokers should report its traffic load to the broker leader periodically.
+
+If any segment has too much load, the broker leader will ask the brokers to tell the client to 
+close current one and create two new segments.
+
+If 2 neighboring segments have the combined load below average load per segment, the broker leader will ask 
+the brokers to tell the client to close this 2 segments and create a new segment.
diff --git a/weed/mq/segment/message_serde.go b/weed/mq/segment/message_serde.go
new file mode 100644
index 000000000..b69d78cab
--- /dev/null
+++ b/weed/mq/segment/message_serde.go
@@ -0,0 +1,48 @@
+package segment
+
+import (
+	"github.com/chrislusf/seaweedfs/weed/pb/message_fbs"
+	flatbuffers "github.com/google/flatbuffers/go"
+)
+
+func CreateMessage(b *flatbuffers.Builder, producerId int32, producerSeq int64, segmentId int32, segmentSeq int64,
+	eventTsNs int64, recvTsNs int64, properties map[string]string, key []byte, value []byte) {
+	b.Reset()
+
+	var names, values, pairs []flatbuffers.UOffsetT
+	for k, v := range properties {
+		names = append(names, b.CreateString(k))
+		values = append(values, b.CreateString(v))
+	}
+
+	for i, _ := range names {
+		message_fbs.NameValueStart(b)
+		message_fbs.NameValueAddName(b, names[i])
+		message_fbs.NameValueAddValue(b, values[i])
+		pair := message_fbs.NameValueEnd(b)
+		pairs = append(pairs, pair)
+	}
+	message_fbs.MessageStartPropertiesVector(b, len(properties))
+	for i := len(pairs) - 1; i >= 0; i-- {
+		b.PrependUOffsetT(pairs[i])
+	}
+	prop := b.EndVector(len(properties))
+
+	k := b.CreateByteVector(key)
+	v := b.CreateByteVector(value)
+
+	message_fbs.MessageStart(b)
+	message_fbs.MessageAddProducerId(b, producerId)
+	message_fbs.MessageAddProducerSeq(b, producerSeq)
+	message_fbs.MessageAddSegmentId(b, segmentId)
+	message_fbs.MessageAddSegmentSeq(b, segmentSeq)
+	message_fbs.MessageAddEventTsNs(b, eventTsNs)
+	message_fbs.MessageAddRecvTsNs(b, recvTsNs)
+
+	message_fbs.MessageAddProperties(b, prop)
+	message_fbs.MessageAddKey(b, k)
+	message_fbs.MessageAddData(b, v)
+	message := message_fbs.MessageEnd(b)
+
+	b.Finish(message)
+}
diff --git a/weed/mq/segment/message_serde_test.go b/weed/mq/segment/message_serde_test.go
new file mode 100644
index 000000000..7ba0febf0
--- /dev/null
+++ b/weed/mq/segment/message_serde_test.go
@@ -0,0 +1,47 @@
+package segment
+
+import (
+	"github.com/chrislusf/seaweedfs/weed/pb/message_fbs"
+	flatbuffers "github.com/google/flatbuffers/go"
+	"github.com/stretchr/testify/assert"
+	"testing"
+)
+
+func TestMessageSerde(t *testing.T) {
+	b := flatbuffers.NewBuilder(1024)
+
+	prop := make(map[string]string)
+	prop["n1"] = "v1"
+	prop["n2"] = "v2"
+
+	CreateMessage(b, 1, 2, 3, 4, 5, 6, prop,
+		[]byte("the primary key"), []byte("body is here"))
+
+	buf := b.FinishedBytes()
+
+	println("serialized size", len(buf))
+
+	m := message_fbs.GetRootAsMessage(buf, 0)
+
+	assert.Equal(t, int32(1), m.ProducerId())
+	assert.Equal(t, int64(2), m.ProducerSeq())
+	assert.Equal(t, int32(3), m.SegmentId())
+	assert.Equal(t, int64(4), m.SegmentSeq())
+	assert.Equal(t, int64(5), m.EventTsNs())
+	assert.Equal(t, int64(6), m.RecvTsNs())
+
+	assert.Equal(t, 2, m.PropertiesLength())
+	nv := &message_fbs.NameValue{}
+	m.Properties(nv, 0)
+	assert.Equal(t, "n1", string(nv.Name()))
+	assert.Equal(t, "v1", string(nv.Value()))
+	m.Properties(nv, 1)
+	assert.Equal(t, "n2", string(nv.Name()))
+	assert.Equal(t, "v2", string(nv.Value()))
+	assert.Equal(t, []byte("the primary key"), m.Key())
+	assert.Equal(t, []byte("body is here"), m.Data())
+
+	m.MutateSegmentSeq(123)
+	assert.Equal(t, int64(123), m.SegmentSeq())
+
+}
diff --git a/weed/mq/segment/segment_serde.go b/weed/mq/segment/segment_serde.go
new file mode 100644
index 000000000..e076271d6
--- /dev/null
+++ b/weed/mq/segment/segment_serde.go
@@ -0,0 +1 @@
+package segment
diff --git a/weed/pb/Makefile b/weed/pb/Makefile
index 01322ffda..f76ec3814 100644
--- a/weed/pb/Makefile
+++ b/weed/pb/Makefile
@@ -13,3 +13,6 @@ gen:
 	protoc mq.proto --go_out=./mq_pb --go-grpc_out=./mq_pb --go_opt=paths=source_relative --go-grpc_opt=paths=source_relative
 	# protoc filer.proto --java_out=../../other/java/client/src/main/java
 	cp filer.proto ../../other/java/client/src/main/proto
+
+fbs:
+	flatc --go -o . --go-namespace message_fbs message.fbs
diff --git a/weed/pb/message.fbs b/weed/pb/message.fbs
new file mode 100644
index 000000000..8ee6c5b55
--- /dev/null
+++ b/weed/pb/message.fbs
@@ -0,0 +1,15 @@
+table NameValue {
+    name:string (key);
+    value:string;
+}
+table Message {
+    producer_id:int32  (id:0);
+    producer_seq:int64 (id:2);
+    segment_id:int32   (id:1);
+    segment_seq:int64  (id:3);
+    event_ts_ns:int64  (id:4);
+    recv_ts_ns:int64   (id:5);
+    properties:[NameValue] (id:6);
+    key:string         (id:7); // bytes
+    data:string        (id:8); // bytes
+}
diff --git a/weed/pb/message_fbs/Message.go b/weed/pb/message_fbs/Message.go
new file mode 100644
index 000000000..058abfeaa
--- /dev/null
+++ b/weed/pb/message_fbs/Message.go
@@ -0,0 +1,179 @@
+// Code generated by the FlatBuffers compiler. DO NOT EDIT.
+
+package message_fbs
+
+import (
+	flatbuffers "github.com/google/flatbuffers/go"
+)
+
+type Message struct {
+	_tab flatbuffers.Table
+}
+
+func GetRootAsMessage(buf []byte, offset flatbuffers.UOffsetT) *Message {
+	n := flatbuffers.GetUOffsetT(buf[offset:])
+	x := &Message{}
+	x.Init(buf, n+offset)
+	return x
+}
+
+func GetSizePrefixedRootAsMessage(buf []byte, offset flatbuffers.UOffsetT) *Message {
+	n := flatbuffers.GetUOffsetT(buf[offset+flatbuffers.SizeUint32:])
+	x := &Message{}
+	x.Init(buf, n+offset+flatbuffers.SizeUint32)
+	return x
+}
+
+func (rcv *Message) Init(buf []byte, i flatbuffers.UOffsetT) {
+	rcv._tab.Bytes = buf
+	rcv._tab.Pos = i
+}
+
+func (rcv *Message) Table() flatbuffers.Table {
+	return rcv._tab
+}
+
+func (rcv *Message) ProducerId() int32 {
+	o := flatbuffers.UOffsetT(rcv._tab.Offset(4))
+	if o != 0 {
+		return rcv._tab.GetInt32(o + rcv._tab.Pos)
+	}
+	return 0
+}
+
+func (rcv *Message) MutateProducerId(n int32) bool {
+	return rcv._tab.MutateInt32Slot(4, n)
+}
+
+func (rcv *Message) SegmentId() int32 {
+	o := flatbuffers.UOffsetT(rcv._tab.Offset(6))
+	if o != 0 {
+		return rcv._tab.GetInt32(o + rcv._tab.Pos)
+	}
+	return 0
+}
+
+func (rcv *Message) MutateSegmentId(n int32) bool {
+	return rcv._tab.MutateInt32Slot(6, n)
+}
+
+func (rcv *Message) ProducerSeq() int64 {
+	o := flatbuffers.UOffsetT(rcv._tab.Offset(8))
+	if o != 0 {
+		return rcv._tab.GetInt64(o + rcv._tab.Pos)
+	}
+	return 0
+}
+
+func (rcv *Message) MutateProducerSeq(n int64) bool {
+	return rcv._tab.MutateInt64Slot(8, n)
+}
+
+func (rcv *Message) SegmentSeq() int64 {
+	o := flatbuffers.UOffsetT(rcv._tab.Offset(10))
+	if o != 0 {
+		return rcv._tab.GetInt64(o + rcv._tab.Pos)
+	}
+	return 0
+}
+
+func (rcv *Message) MutateSegmentSeq(n int64) bool {
+	return rcv._tab.MutateInt64Slot(10, n)
+}
+
+func (rcv *Message) EventTsNs() int64 {
+	o := flatbuffers.UOffsetT(rcv._tab.Offset(12))
+	if o != 0 {
+		return rcv._tab.GetInt64(o + rcv._tab.Pos)
+	}
+	return 0
+}
+
+func (rcv *Message) MutateEventTsNs(n int64) bool {
+	return rcv._tab.MutateInt64Slot(12, n)
+}
+
+func (rcv *Message) RecvTsNs() int64 {
+	o := flatbuffers.UOffsetT(rcv._tab.Offset(14))
+	if o != 0 {
+		return rcv._tab.GetInt64(o + rcv._tab.Pos)
+	}
+	return 0
+}
+
+func (rcv *Message) MutateRecvTsNs(n int64) bool {
+	return rcv._tab.MutateInt64Slot(14, n)
+}
+
+func (rcv *Message) Properties(obj *NameValue, j int) bool {
+	o := flatbuffers.UOffsetT(rcv._tab.Offset(16))
+	if o != 0 {
+		x := rcv._tab.Vector(o)
+		x += flatbuffers.UOffsetT(j) * 4
+		x = rcv._tab.Indirect(x)
+		obj.Init(rcv._tab.Bytes, x)
+		return true
+	}
+	return false
+}
+
+func (rcv *Message) PropertiesLength() int {
+	o := flatbuffers.UOffsetT(rcv._tab.Offset(16))
+	if o != 0 {
+		return rcv._tab.VectorLen(o)
+	}
+	return 0
+}
+
+func (rcv *Message) Key() []byte {
+	o := flatbuffers.UOffsetT(rcv._tab.Offset(18))
+	if o != 0 {
+		return rcv._tab.ByteVector(o + rcv._tab.Pos)
+	}
+	return nil
+}
+
+func (rcv *Message) Data() []byte {
+	o := flatbuffers.UOffsetT(rcv._tab.Offset(20))
+	if o != 0 {
+		return rcv._tab.ByteVector(o + rcv._tab.Pos)
+	}
+	return nil
+}
+
+func MessageStart(builder *flatbuffers.Builder) {
+	builder.StartObject(9)
+}
+func MessageAddProducerId(builder *flatbuffers.Builder, producerId int32) {
+	builder.PrependInt32Slot(0, producerId, 0)
+}
+func MessageAddSegmentId(builder *flatbuffers.Builder, segmentId int32) {
+	builder.PrependInt32Slot(1, segmentId, 0)
+}
+func MessageAddProducerSeq(builder *flatbuffers.Builder, producerSeq int64) {
+	builder.PrependInt64Slot(2, producerSeq, 0)
+}
+func MessageAddSegmentSeq(builder *flatbuffers.Builder, segmentSeq int64) {
+	builder.PrependInt64Slot(3, segmentSeq, 0)
+}
+func MessageAddEventTsNs(builder *flatbuffers.Builder, eventTsNs int64) {
+	builder.PrependInt64Slot(4, eventTsNs, 0)
+}
+func MessageAddRecvTsNs(builder *flatbuffers.Builder, recvTsNs int64) {
+	builder.PrependInt64Slot(5, recvTsNs, 0)
+}
+func MessageAddProperties(builder *flatbuffers.Builder, properties flatbuffers.UOffsetT) {
+	builder.PrependUOffsetTSlot(6, flatbuffers.UOffsetT(properties), 0)
+}
+func MessageStartPropertiesVector(builder *flatbuffers.Builder, numElems int) flatbuffers.UOffsetT {
+	return builder.StartVector(4, numElems, 4)
+}
+func MessageAddKey(builder *flatbuffers.Builder, key flatbuffers.UOffsetT) {
+	builder.PrependUOffsetTSlot(7, flatbuffers.UOffsetT(key), 0)
+}
+func MessageAddData(builder *flatbuffers.Builder, data flatbuffers.UOffsetT) {
+	builder.PrependUOffsetTSlot(8, flatbuffers.UOffsetT(data), 0)
+}
+func MessageEnd(builder *flatbuffers.Builder) flatbuffers.UOffsetT {
+	return builder.EndObject()
+}
diff --git a/weed/pb/message_fbs/NameValue.go b/weed/pb/message_fbs/NameValue.go
new file mode 100644
index 000000000..b5dfdad16
--- /dev/null
+++ b/weed/pb/message_fbs/NameValue.go
@@ -0,0 +1,63 @@
+// Code generated by the FlatBuffers compiler. DO NOT EDIT.
+
+package message_fbs
+
+import (
+	flatbuffers "github.com/google/flatbuffers/go"
+)
+
+type NameValue struct {
+	_tab flatbuffers.Table
+}
+
+func GetRootAsNameValue(buf []byte, offset flatbuffers.UOffsetT) *NameValue {
+	n := flatbuffers.GetUOffsetT(buf[offset:])
+	x := &NameValue{}
+	x.Init(buf, n+offset)
+	return x
+}
+
+func GetSizePrefixedRootAsNameValue(buf []byte, offset flatbuffers.UOffsetT) *NameValue {
+	n := flatbuffers.GetUOffsetT(buf[offset+flatbuffers.SizeUint32:])
+	x := &NameValue{}
+	x.Init(buf, n+offset+flatbuffers.SizeUint32)
+	return x
+}
+
+func (rcv *NameValue) Init(buf []byte, i flatbuffers.UOffsetT) {
+	rcv._tab.Bytes = buf
+	rcv._tab.Pos = i
+}
+
+func (rcv *NameValue) Table() flatbuffers.Table {
+	return rcv._tab
+}
+
+func (rcv *NameValue) Name() []byte {
+	o := flatbuffers.UOffsetT(rcv._tab.Offset(4))
+	if o != 0 {
+		return rcv._tab.ByteVector(o + rcv._tab.Pos)
+	}
+	return nil
+}
+
+func (rcv *NameValue) Value() []byte {
+	o := flatbuffers.UOffsetT(rcv._tab.Offset(6))
+	if o != 0 {
+		return rcv._tab.ByteVector(o + rcv._tab.Pos)
+	}
+	return nil
+}
+
+func NameValueStart(builder *flatbuffers.Builder) {
+	builder.StartObject(2)
+}
+func NameValueAddName(builder *flatbuffers.Builder, name flatbuffers.UOffsetT) {
+	builder.PrependUOffsetTSlot(0, flatbuffers.UOffsetT(name), 0)
+}
+func NameValueAddValue(builder *flatbuffers.Builder, value flatbuffers.UOffsetT) {
+	builder.PrependUOffsetTSlot(1, flatbuffers.UOffsetT(value), 0)
+}
+func NameValueEnd(builder *flatbuffers.Builder) flatbuffers.UOffsetT {
+	return builder.EndObject()
+}

From f72f6961092c60c0a537d8bba5e242dce1ebb7a2 Mon Sep 17 00:00:00 2001
From: chrislu <chris.lu@gmail.com>
Date: Fri, 22 Jul 2022 01:12:32 -0700
Subject: [PATCH 17/17] add message batch

---
 weed/mq/segment/message_serde.go      | 113 ++++++++++++----
 weed/mq/segment/message_serde_test.go |  41 +++---
 weed/pb/message.fbs                   |  26 ++--
 weed/pb/message_fbs/Message.go        |  92 +++----------
 weed/pb/message_fbs/MessageBatch.go   | 187 ++++++++++++++++++++++++++
 5 files changed, 332 insertions(+), 127 deletions(-)
 create mode 100644 weed/pb/message_fbs/MessageBatch.go

diff --git a/weed/mq/segment/message_serde.go b/weed/mq/segment/message_serde.go
index b69d78cab..8efa9fe21 100644
--- a/weed/mq/segment/message_serde.go
+++ b/weed/mq/segment/message_serde.go
@@ -5,44 +5,105 @@ import (
 	flatbuffers "github.com/google/flatbuffers/go"
 )
 
-func CreateMessage(b *flatbuffers.Builder, producerId int32, producerSeq int64, segmentId int32, segmentSeq int64,
-	eventTsNs int64, recvTsNs int64, properties map[string]string, key []byte, value []byte) {
+type MessageBatchBuilder struct {
+	b              *flatbuffers.Builder
+	producerId     int32
+	producerEpoch  int32
+	segmentId      int32
+	flags          int32
+	messageOffsets []flatbuffers.UOffsetT
+	segmentSeqBase int64
+	segmentSeqLast int64
+	tsMsBase       int64
+	tsMsLast       int64
+}
+
+func NewMessageBatchBuilder(b *flatbuffers.Builder,
+	producerId int32,
+	producerEpoch int32,
+	segmentId int32,
+	flags int32) *MessageBatchBuilder {
+
 	b.Reset()
 
+	return &MessageBatchBuilder{
+		b:             b,
+		producerId:    producerId,
+		producerEpoch: producerEpoch,
+		segmentId:     segmentId,
+		flags:         flags,
+	}
+}
+
+func (builder *MessageBatchBuilder) AddMessage(segmentSeq int64, tsMs int64, properties map[string][]byte, key []byte, value []byte) {
+	if builder.segmentSeqBase == 0 {
+		builder.segmentSeqBase = segmentSeq
+	}
+	builder.segmentSeqLast = segmentSeq
+	if builder.tsMsBase == 0 {
+		builder.tsMsBase = tsMs
+	}
+	builder.tsMsLast = tsMs
+
 	var names, values, pairs []flatbuffers.UOffsetT
 	for k, v := range properties {
-		names = append(names, b.CreateString(k))
-		values = append(values, b.CreateString(v))
+		names = append(names, builder.b.CreateString(k))
+		values = append(values, builder.b.CreateByteVector(v))
 	}
-
 	for i, _ := range names {
-		message_fbs.NameValueStart(b)
-		message_fbs.NameValueAddName(b, names[i])
-		message_fbs.NameValueAddValue(b, values[i])
-		pair := message_fbs.NameValueEnd(b)
+		message_fbs.NameValueStart(builder.b)
+		message_fbs.NameValueAddName(builder.b, names[i])
+		message_fbs.NameValueAddValue(builder.b, values[i])
+		pair := message_fbs.NameValueEnd(builder.b)
 		pairs = append(pairs, pair)
 	}
-	message_fbs.MessageStartPropertiesVector(b, len(properties))
+
+	message_fbs.MessageStartPropertiesVector(builder.b, len(properties))
 	for i := len(pairs) - 1; i >= 0; i-- {
-		b.PrependUOffsetT(pairs[i])
+		builder.b.PrependUOffsetT(pairs[i])
 	}
-	prop := b.EndVector(len(properties))
+	propOffset := builder.b.EndVector(len(properties))
 
-	k := b.CreateByteVector(key)
-	v := b.CreateByteVector(value)
+	keyOffset := builder.b.CreateByteVector(key)
+	valueOffset := builder.b.CreateByteVector(value)
 
-	message_fbs.MessageStart(b)
-	message_fbs.MessageAddProducerId(b, producerId)
-	message_fbs.MessageAddProducerSeq(b, producerSeq)
-	message_fbs.MessageAddSegmentId(b, segmentId)
-	message_fbs.MessageAddSegmentSeq(b, segmentSeq)
-	message_fbs.MessageAddEventTsNs(b, eventTsNs)
-	message_fbs.MessageAddRecvTsNs(b, recvTsNs)
+	message_fbs.MessageStart(builder.b)
+	message_fbs.MessageAddSeqDelta(builder.b, int32(segmentSeq-builder.segmentSeqBase))
+	message_fbs.MessageAddTsMsDelta(builder.b, int32(tsMs-builder.tsMsBase))
 
-	message_fbs.MessageAddProperties(b, prop)
-	message_fbs.MessageAddKey(b, k)
-	message_fbs.MessageAddData(b, v)
-	message := message_fbs.MessageEnd(b)
+	message_fbs.MessageAddProperties(builder.b, propOffset)
+	message_fbs.MessageAddKey(builder.b, keyOffset)
+	message_fbs.MessageAddData(builder.b, valueOffset)
+	messageOffset := message_fbs.MessageEnd(builder.b)
+
+	builder.messageOffsets = append(builder.messageOffsets, messageOffset)
+
+}
+
+func (builder *MessageBatchBuilder) BuildMessageBatch() {
+	message_fbs.MessageBatchStartMessagesVector(builder.b, len(builder.messageOffsets))
+	for i := len(builder.messageOffsets) - 1; i >= 0; i-- {
+		builder.b.PrependUOffsetT(builder.messageOffsets[i])
+	}
+	messagesOffset := builder.b.EndVector(len(builder.messageOffsets))
+
+	message_fbs.MessageBatchStart(builder.b)
+	message_fbs.MessageBatchAddProducerId(builder.b, builder.producerId)
+	message_fbs.MessageBatchAddProducerEpoch(builder.b, builder.producerEpoch)
+	message_fbs.MessageBatchAddSegmentId(builder.b, builder.segmentId)
+	message_fbs.MessageBatchAddFlags(builder.b, builder.flags)
+	message_fbs.MessageBatchAddSegmentSeqBase(builder.b, builder.segmentSeqBase)
+	message_fbs.MessageBatchAddSegmentSeqMaxDelta(builder.b, int32(builder.segmentSeqLast-builder.segmentSeqBase))
+	message_fbs.MessageBatchAddTsMsBase(builder.b, builder.tsMsBase)
+	message_fbs.MessageBatchAddTsMsMaxDelta(builder.b, int32(builder.tsMsLast-builder.tsMsBase))
+
+	message_fbs.MessageBatchAddMessages(builder.b, messagesOffset)
+
+	messageBatch := message_fbs.MessageBatchEnd(builder.b)
+
+	builder.b.Finish(messageBatch)
+}
 
-	b.Finish(message)
+func (builder *MessageBatchBuilder) GetBytes() []byte {
+	return builder.b.FinishedBytes()
 }
diff --git a/weed/mq/segment/message_serde_test.go b/weed/mq/segment/message_serde_test.go
index 7ba0febf0..bf561d2c0 100644
--- a/weed/mq/segment/message_serde_test.go
+++ b/weed/mq/segment/message_serde_test.go
@@ -10,27 +10,36 @@ import (
 func TestMessageSerde(t *testing.T) {
 	b := flatbuffers.NewBuilder(1024)
 
-	prop := make(map[string]string)
-	prop["n1"] = "v1"
-	prop["n2"] = "v2"
+	prop := make(map[string][]byte)
+	prop["n1"] = []byte("v1")
+	prop["n2"] = []byte("v2")
 
-	CreateMessage(b, 1, 2, 3, 4, 5, 6, prop,
-		[]byte("the primary key"), []byte("body is here"))
+	bb := NewMessageBatchBuilder(b, 1, 2, 3, 4)
 
-	buf := b.FinishedBytes()
+	bb.AddMessage(5, 6, prop, []byte("the primary key"), []byte("body is here"))
+
+	bb.BuildMessageBatch()
+
+	buf := bb.GetBytes()
 
 	println("serialized size", len(buf))
 
-	m := message_fbs.GetRootAsMessage(buf, 0)
+	mb := message_fbs.GetRootAsMessageBatch(buf, 0)
+
+	assert.Equal(t, int32(1), mb.ProducerId())
+	assert.Equal(t, int32(2), mb.ProducerEpoch())
+	assert.Equal(t, int32(3), mb.SegmentId())
+	assert.Equal(t, int32(4), mb.Flags())
+	assert.Equal(t, int64(5), mb.SegmentSeqBase())
+	assert.Equal(t, int32(0), mb.SegmentSeqMaxDelta())
+	assert.Equal(t, int64(6), mb.TsMsBase())
+	assert.Equal(t, int32(0), mb.TsMsMaxDelta())
+
+	assert.Equal(t, 1, mb.MessagesLength())
 
-	assert.Equal(t, int32(1), m.ProducerId())
-	assert.Equal(t, int64(2), m.ProducerSeq())
-	assert.Equal(t, int32(3), m.SegmentId())
-	assert.Equal(t, int64(4), m.SegmentSeq())
-	assert.Equal(t, int64(5), m.EventTsNs())
-	assert.Equal(t, int64(6), m.RecvTsNs())
+	m := &message_fbs.Message{}
+	mb.Messages(m, 0)
 
-	assert.Equal(t, 2, m.PropertiesLength())
 	nv := &message_fbs.NameValue{}
 	m.Properties(nv, 0)
 	assert.Equal(t, "n1", string(nv.Name()))
@@ -41,7 +50,7 @@ func TestMessageSerde(t *testing.T) {
 	assert.Equal(t, []byte("the primary key"), m.Key())
 	assert.Equal(t, []byte("body is here"), m.Data())
 
-	m.MutateSegmentSeq(123)
-	assert.Equal(t, int64(123), m.SegmentSeq())
+	assert.Equal(t, int32(0), m.SeqDelta())
+	assert.Equal(t, int32(0), m.TsMsDelta())
 
 }
diff --git a/weed/pb/message.fbs b/weed/pb/message.fbs
index 8ee6c5b55..170551df7 100644
--- a/weed/pb/message.fbs
+++ b/weed/pb/message.fbs
@@ -3,13 +3,21 @@ table NameValue {
     value:string;
 }
 table Message {
-    producer_id:int32  (id:0);
-    producer_seq:int64 (id:2);
-    segment_id:int32   (id:1);
-    segment_seq:int64  (id:3);
-    event_ts_ns:int64  (id:4);
-    recv_ts_ns:int64   (id:5);
-    properties:[NameValue] (id:6);
-    key:string         (id:7); // bytes
-    data:string        (id:8); // bytes
+    seq_delta:int32         (id:0);
+    ts_ms_delta:int32       (id:1);
+    properties:[NameValue]  (id:2);
+    key:string              (id:3); // bytes
+    data:string             (id:4); // bytes
+}
+
+table MessageBatch {
+    producer_id:int32       (id:0);
+    producer_epoch:int32    (id:1);
+    segment_id:int32        (id:2);
+    flags: int32            (id:3);
+    segment_seq_base:int64          (id:4);
+    segment_seq_max_delta:int32     (id:5);
+    ts_ms_base:int64        (id:6);
+    ts_ms_max_delta:int32         (id:7);
+    messages: [Message]     (id:8);
 }
diff --git a/weed/pb/message_fbs/Message.go b/weed/pb/message_fbs/Message.go
index 058abfeaa..e9ef83616 100644
--- a/weed/pb/message_fbs/Message.go
+++ b/weed/pb/message_fbs/Message.go
@@ -33,7 +33,7 @@ func (rcv *Message) Table() flatbuffers.Table {
 	return rcv._tab
 }
 
-func (rcv *Message) ProducerId() int32 {
+func (rcv *Message) SeqDelta() int32 {
 	o := flatbuffers.UOffsetT(rcv._tab.Offset(4))
 	if o != 0 {
 		return rcv._tab.GetInt32(o + rcv._tab.Pos)
@@ -41,11 +41,11 @@ func (rcv *Message) ProducerId() int32 {
 	return 0
 }
 
-func (rcv *Message) MutateProducerId(n int32) bool {
+func (rcv *Message) MutateSeqDelta(n int32) bool {
 	return rcv._tab.MutateInt32Slot(4, n)
 }
 
-func (rcv *Message) SegmentId() int32 {
+func (rcv *Message) TsMsDelta() int32 {
 	o := flatbuffers.UOffsetT(rcv._tab.Offset(6))
 	if o != 0 {
 		return rcv._tab.GetInt32(o + rcv._tab.Pos)
@@ -53,60 +53,12 @@ func (rcv *Message) SegmentId() int32 {
 	return 0
 }
 
-func (rcv *Message) MutateSegmentId(n int32) bool {
+func (rcv *Message) MutateTsMsDelta(n int32) bool {
 	return rcv._tab.MutateInt32Slot(6, n)
 }
 
-func (rcv *Message) ProducerSeq() int64 {
-	o := flatbuffers.UOffsetT(rcv._tab.Offset(8))
-	if o != 0 {
-		return rcv._tab.GetInt64(o + rcv._tab.Pos)
-	}
-	return 0
-}
-
-func (rcv *Message) MutateProducerSeq(n int64) bool {
-	return rcv._tab.MutateInt64Slot(8, n)
-}
-
-func (rcv *Message) SegmentSeq() int64 {
-	o := flatbuffers.UOffsetT(rcv._tab.Offset(10))
-	if o != 0 {
-		return rcv._tab.GetInt64(o + rcv._tab.Pos)
-	}
-	return 0
-}
-
-func (rcv *Message) MutateSegmentSeq(n int64) bool {
-	return rcv._tab.MutateInt64Slot(10, n)
-}
-
-func (rcv *Message) EventTsNs() int64 {
-	o := flatbuffers.UOffsetT(rcv._tab.Offset(12))
-	if o != 0 {
-		return rcv._tab.GetInt64(o + rcv._tab.Pos)
-	}
-	return 0
-}
-
-func (rcv *Message) MutateEventTsNs(n int64) bool {
-	return rcv._tab.MutateInt64Slot(12, n)
-}
-
-func (rcv *Message) RecvTsNs() int64 {
-	o := flatbuffers.UOffsetT(rcv._tab.Offset(14))
-	if o != 0 {
-		return rcv._tab.GetInt64(o + rcv._tab.Pos)
-	}
-	return 0
-}
-
-func (rcv *Message) MutateRecvTsNs(n int64) bool {
-	return rcv._tab.MutateInt64Slot(14, n)
-}
-
 func (rcv *Message) Properties(obj *NameValue, j int) bool {
-	o := flatbuffers.UOffsetT(rcv._tab.Offset(16))
+	o := flatbuffers.UOffsetT(rcv._tab.Offset(8))
 	if o != 0 {
 		x := rcv._tab.Vector(o)
 		x += flatbuffers.UOffsetT(j) * 4
@@ -118,7 +70,7 @@ func (rcv *Message) Properties(obj *NameValue, j int) bool {
 }
 
 func (rcv *Message) PropertiesLength() int {
-	o := flatbuffers.UOffsetT(rcv._tab.Offset(16))
+	o := flatbuffers.UOffsetT(rcv._tab.Offset(8))
 	if o != 0 {
 		return rcv._tab.VectorLen(o)
 	}
@@ -126,7 +78,7 @@ func (rcv *Message) PropertiesLength() int {
 }
 
 func (rcv *Message) Key() []byte {
-	o := flatbuffers.UOffsetT(rcv._tab.Offset(18))
+	o := flatbuffers.UOffsetT(rcv._tab.Offset(10))
 	if o != 0 {
 		return rcv._tab.ByteVector(o + rcv._tab.Pos)
 	}
@@ -134,7 +86,7 @@ func (rcv *Message) Key() []byte {
 }
 
 func (rcv *Message) Data() []byte {
-	o := flatbuffers.UOffsetT(rcv._tab.Offset(20))
+	o := flatbuffers.UOffsetT(rcv._tab.Offset(12))
 	if o != 0 {
 		return rcv._tab.ByteVector(o + rcv._tab.Pos)
 	}
@@ -142,37 +94,25 @@ func (rcv *Message) Data() []byte {
 }
 
 func MessageStart(builder *flatbuffers.Builder) {
-	builder.StartObject(9)
-}
-func MessageAddProducerId(builder *flatbuffers.Builder, producerId int32) {
-	builder.PrependInt32Slot(0, producerId, 0)
-}
-func MessageAddSegmentId(builder *flatbuffers.Builder, segmentId int32) {
-	builder.PrependInt32Slot(1, segmentId, 0)
-}
-func MessageAddProducerSeq(builder *flatbuffers.Builder, producerSeq int64) {
-	builder.PrependInt64Slot(2, producerSeq, 0)
-}
-func MessageAddSegmentSeq(builder *flatbuffers.Builder, segmentSeq int64) {
-	builder.PrependInt64Slot(3, segmentSeq, 0)
+	builder.StartObject(5)
 }
-func MessageAddEventTsNs(builder *flatbuffers.Builder, eventTsNs int64) {
-	builder.PrependInt64Slot(4, eventTsNs, 0)
+func MessageAddSeqDelta(builder *flatbuffers.Builder, seqDelta int32) {
+	builder.PrependInt32Slot(0, seqDelta, 0)
 }
-func MessageAddRecvTsNs(builder *flatbuffers.Builder, recvTsNs int64) {
-	builder.PrependInt64Slot(5, recvTsNs, 0)
+func MessageAddTsMsDelta(builder *flatbuffers.Builder, tsMsDelta int32) {
+	builder.PrependInt32Slot(1, tsMsDelta, 0)
 }
 func MessageAddProperties(builder *flatbuffers.Builder, properties flatbuffers.UOffsetT) {
-	builder.PrependUOffsetTSlot(6, flatbuffers.UOffsetT(properties), 0)
+	builder.PrependUOffsetTSlot(2, flatbuffers.UOffsetT(properties), 0)
 }
 func MessageStartPropertiesVector(builder *flatbuffers.Builder, numElems int) flatbuffers.UOffsetT {
 	return builder.StartVector(4, numElems, 4)
 }
 func MessageAddKey(builder *flatbuffers.Builder, key flatbuffers.UOffsetT) {
-	builder.PrependUOffsetTSlot(7, flatbuffers.UOffsetT(key), 0)
+	builder.PrependUOffsetTSlot(3, flatbuffers.UOffsetT(key), 0)
 }
 func MessageAddData(builder *flatbuffers.Builder, data flatbuffers.UOffsetT) {
-	builder.PrependUOffsetTSlot(8, flatbuffers.UOffsetT(data), 0)
+	builder.PrependUOffsetTSlot(4, flatbuffers.UOffsetT(data), 0)
 }
 func MessageEnd(builder *flatbuffers.Builder) flatbuffers.UOffsetT {
 	return builder.EndObject()
diff --git a/weed/pb/message_fbs/MessageBatch.go b/weed/pb/message_fbs/MessageBatch.go
new file mode 100644
index 000000000..19d6a4816
--- /dev/null
+++ b/weed/pb/message_fbs/MessageBatch.go
@@ -0,0 +1,187 @@
+// Code generated by the FlatBuffers compiler. DO NOT EDIT.
+
+package message_fbs
+
+import (
+	flatbuffers "github.com/google/flatbuffers/go"
+)
+
+type MessageBatch struct {
+	_tab flatbuffers.Table
+}
+
+func GetRootAsMessageBatch(buf []byte, offset flatbuffers.UOffsetT) *MessageBatch {
+	n := flatbuffers.GetUOffsetT(buf[offset:])
+	x := &MessageBatch{}
+	x.Init(buf, n+offset)
+	return x
+}
+
+func GetSizePrefixedRootAsMessageBatch(buf []byte, offset flatbuffers.UOffsetT) *MessageBatch {
+	n := flatbuffers.GetUOffsetT(buf[offset+flatbuffers.SizeUint32:])
+	x := &MessageBatch{}
+	x.Init(buf, n+offset+flatbuffers.SizeUint32)
+	return x
+}
+
+func (rcv *MessageBatch) Init(buf []byte, i flatbuffers.UOffsetT) {
+	rcv._tab.Bytes = buf
+	rcv._tab.Pos = i
+}
+
+func (rcv *MessageBatch) Table() flatbuffers.Table {
+	return rcv._tab
+}
+
+func (rcv *MessageBatch) ProducerId() int32 {
+	o := flatbuffers.UOffsetT(rcv._tab.Offset(4))
+	if o != 0 {
+		return rcv._tab.GetInt32(o + rcv._tab.Pos)
+	}
+	return 0
+}
+
+func (rcv *MessageBatch) MutateProducerId(n int32) bool {
+	return rcv._tab.MutateInt32Slot(4, n)
+}
+
+func (rcv *MessageBatch) ProducerEpoch() int32 {
+	o := flatbuffers.UOffsetT(rcv._tab.Offset(6))
+	if o != 0 {
+		return rcv._tab.GetInt32(o + rcv._tab.Pos)
+	}
+	return 0
+}
+
+func (rcv *MessageBatch) MutateProducerEpoch(n int32) bool {
+	return rcv._tab.MutateInt32Slot(6, n)
+}
+
+func (rcv *MessageBatch) SegmentId() int32 {
+	o := flatbuffers.UOffsetT(rcv._tab.Offset(8))
+	if o != 0 {
+		return rcv._tab.GetInt32(o + rcv._tab.Pos)
+	}
+	return 0
+}
+
+func (rcv *MessageBatch) MutateSegmentId(n int32) bool {
+	return rcv._tab.MutateInt32Slot(8, n)
+}
+
+func (rcv *MessageBatch) Flags() int32 {
+	o := flatbuffers.UOffsetT(rcv._tab.Offset(10))
+	if o != 0 {
+		return rcv._tab.GetInt32(o + rcv._tab.Pos)
+	}
+	return 0
+}
+
+func (rcv *MessageBatch) MutateFlags(n int32) bool {
+	return rcv._tab.MutateInt32Slot(10, n)
+}
+
+func (rcv *MessageBatch) SegmentSeqBase() int64 {
+	o := flatbuffers.UOffsetT(rcv._tab.Offset(12))
+	if o != 0 {
+		return rcv._tab.GetInt64(o + rcv._tab.Pos)
+	}
+	return 0
+}
+
+func (rcv *MessageBatch) MutateSegmentSeqBase(n int64) bool {
+	return rcv._tab.MutateInt64Slot(12, n)
+}
+
+func (rcv *MessageBatch) SegmentSeqMaxDelta() int32 {
+	o := flatbuffers.UOffsetT(rcv._tab.Offset(14))
+	if o != 0 {
+		return rcv._tab.GetInt32(o + rcv._tab.Pos)
+	}
+	return 0
+}
+
+func (rcv *MessageBatch) MutateSegmentSeqMaxDelta(n int32) bool {
+	return rcv._tab.MutateInt32Slot(14, n)
+}
+
+func (rcv *MessageBatch) TsMsBase() int64 {
+	o := flatbuffers.UOffsetT(rcv._tab.Offset(16))
+	if o != 0 {
+		return rcv._tab.GetInt64(o + rcv._tab.Pos)
+	}
+	return 0
+}
+
+func (rcv *MessageBatch) MutateTsMsBase(n int64) bool {
+	return rcv._tab.MutateInt64Slot(16, n)
+}
+
+func (rcv *MessageBatch) TsMsMaxDelta() int32 {
+	o := flatbuffers.UOffsetT(rcv._tab.Offset(18))
+	if o != 0 {
+		return rcv._tab.GetInt32(o + rcv._tab.Pos)
+	}
+	return 0
+}
+
+func (rcv *MessageBatch) MutateTsMsMaxDelta(n int32) bool {
+	return rcv._tab.MutateInt32Slot(18, n)
+}
+
+func (rcv *MessageBatch) Messages(obj *Message, j int) bool {
+	o := flatbuffers.UOffsetT(rcv._tab.Offset(20))
+	if o != 0 {
+		x := rcv._tab.Vector(o)
+		x += flatbuffers.UOffsetT(j) * 4
+		x = rcv._tab.Indirect(x)
+		obj.Init(rcv._tab.Bytes, x)
+		return true
+	}
+	return false
+}
+
+func (rcv *MessageBatch) MessagesLength() int {
+	o := flatbuffers.UOffsetT(rcv._tab.Offset(20))
+	if o != 0 {
+		return rcv._tab.VectorLen(o)
+	}
+	return 0
+}
+
+func MessageBatchStart(builder *flatbuffers.Builder) {
+	builder.StartObject(9)
+}
+func MessageBatchAddProducerId(builder *flatbuffers.Builder, producerId int32) {
+	builder.PrependInt32Slot(0, producerId, 0)
+}
+func MessageBatchAddProducerEpoch(builder *flatbuffers.Builder, producerEpoch int32) {
+	builder.PrependInt32Slot(1, producerEpoch, 0)
+}
+func MessageBatchAddSegmentId(builder *flatbuffers.Builder, segmentId int32) {
+	builder.PrependInt32Slot(2, segmentId, 0)
+}
+func MessageBatchAddFlags(builder *flatbuffers.Builder, flags int32) {
+	builder.PrependInt32Slot(3, flags, 0)
+}
+func MessageBatchAddSegmentSeqBase(builder *flatbuffers.Builder, segmentSeqBase int64) {
+	builder.PrependInt64Slot(4, segmentSeqBase, 0)
+}
+func MessageBatchAddSegmentSeqMaxDelta(builder *flatbuffers.Builder, segmentSeqMaxDelta int32) {
+	builder.PrependInt32Slot(5, segmentSeqMaxDelta, 0)
+}
+func MessageBatchAddTsMsBase(builder *flatbuffers.Builder, tsMsBase int64) {
+	builder.PrependInt64Slot(6, tsMsBase, 0)
+}
+func MessageBatchAddTsMsMaxDelta(builder *flatbuffers.Builder, tsMsMaxDelta int32) {
+	builder.PrependInt32Slot(7, tsMsMaxDelta, 0)
+}
+func MessageBatchAddMessages(builder *flatbuffers.Builder, messages flatbuffers.UOffsetT) {
+	builder.PrependUOffsetTSlot(8, flatbuffers.UOffsetT(messages), 0)
+}
+func MessageBatchStartMessagesVector(builder *flatbuffers.Builder, numElems int) flatbuffers.UOffsetT {
+	return builder.StartVector(4, numElems, 4)
+}
+func MessageBatchEnd(builder *flatbuffers.Builder) flatbuffers.UOffsetT {
+	return builder.EndObject()
+}