From e0fc2898e9f9ec24ac2a94f7fba4b440058e2d25 Mon Sep 17 00:00:00 2001 From: Chris Lu Date: Sat, 6 Nov 2021 14:23:35 -0700 Subject: [PATCH] auto updated filer peer list --- weed/election/cluster.go | 4 + weed/filer/filer.go | 43 ++-- weed/filer/meta_aggregator.go | 52 ++++- weed/pb/master.proto | 1 + weed/pb/master_pb/master.pb.go | 228 +++++++++++----------- weed/server/filer_server.go | 4 +- weed/server/master_grpc_server_cluster.go | 1 + weed/wdclient/masterclient.go | 13 +- 8 files changed, 210 insertions(+), 136 deletions(-) diff --git a/weed/election/cluster.go b/weed/election/cluster.go index 7f247f2cf..cf77771ba 100644 --- a/weed/election/cluster.go +++ b/weed/election/cluster.go @@ -85,6 +85,10 @@ func (cluster *Cluster) ListClusterNode(nodeType string) (nodes []*ClusterNode) return } +func (cluster *Cluster) IsOneLeader(address pb.ServerAddress) bool { + return cluster.leaders.isOneLeader(address) +} + func (cluster *Cluster) ensureLeader(isAdd bool, nodeType string, address pb.ServerAddress) (result []*master_pb.KeepConnectedResponse) { if isAdd { if cluster.leaders.addLeaderIfVacant(address) { diff --git a/weed/filer/filer.go b/weed/filer/filer.go index 76d2f3f47..6dca3321f 100644 --- a/weed/filer/filer.go +++ b/weed/filer/filer.go @@ -4,6 +4,7 @@ import ( "context" "fmt" "github.com/chrislusf/seaweedfs/weed/pb" + "github.com/chrislusf/seaweedfs/weed/pb/master_pb" "os" "strings" "time" @@ -66,22 +67,38 @@ func NewFiler(masters []pb.ServerAddress, grpcDialOption grpc.DialOption, return f } -func (f *Filer) AggregateFromPeers(self pb.ServerAddress, filers []pb.ServerAddress) { +func (f *Filer) AggregateFromPeers(self pb.ServerAddress) { - // set peers - found := false - for _, peer := range filers { - if peer == self { - found = true - } - } - if !found { - filers = append(filers, self) + f.MetaAggregator = NewMetaAggregator(f, self, f.GrpcDialOption) + f.MasterClient.OnPeerUpdate = f.MetaAggregator.OnPeerUpdate + + for _, peerUpdate := range f.ListExistingPeerUpdates() { + f.MetaAggregator.OnPeerUpdate(peerUpdate) } - f.MetaAggregator = NewMetaAggregator(filers, f.GrpcDialOption) - f.MetaAggregator.StartLoopSubscribe(f, self) +} +func (f *Filer) ListExistingPeerUpdates() (existingNodes []*master_pb.ClusterNodeUpdate){ + + if grpcErr := pb.WithMasterClient(f.MasterClient.GetMaster(), f.GrpcDialOption, func(client master_pb.SeaweedClient) error { + resp, err := client.ListClusterNodes(context.Background(), &master_pb.ListClusterNodesRequest{ + ClientType: "filer", + }) + + 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: "filer", + Address: node.Address, + IsLeader: node.IsLeader, + IsAdd: true, + }) + } + return err + }); grpcErr != nil { + glog.V(0).Infof("connect to %s: %v", f.MasterClient.GetMaster(), grpcErr) + } + return } func (f *Filer) SetStore(store FilerStore) { @@ -117,7 +134,7 @@ func (fs *Filer) GetMaster() pb.ServerAddress { return fs.MasterClient.GetMaster() } -func (fs *Filer) KeepConnectedToMaster() { +func (fs *Filer) KeepMasterClientConnected() { fs.MasterClient.KeepConnectedToMaster() } diff --git a/weed/filer/meta_aggregator.go b/weed/filer/meta_aggregator.go index eba2a044a..6e42b1902 100644 --- a/weed/filer/meta_aggregator.go +++ b/weed/filer/meta_aggregator.go @@ -3,6 +3,7 @@ package filer import ( "context" "fmt" + "github.com/chrislusf/seaweedfs/weed/pb/master_pb" "github.com/chrislusf/seaweedfs/weed/util" "io" "sync" @@ -18,9 +19,13 @@ import ( ) type MetaAggregator struct { - filers []pb.ServerAddress - grpcDialOption grpc.DialOption - MetaLogBuffer *log_buffer.LogBuffer + filer *Filer + self pb.ServerAddress + isLeader bool + grpcDialOption grpc.DialOption + MetaLogBuffer *log_buffer.LogBuffer + peerStatues map[pb.ServerAddress]struct{} + peerStatuesLock sync.Mutex // notifying clients ListenersLock sync.Mutex ListenersCond *sync.Cond @@ -28,10 +33,12 @@ type MetaAggregator struct { // MetaAggregator only aggregates data "on the fly". The logs are not re-persisted to disk. // The old data comes from what each LocalMetadata persisted on disk. -func NewMetaAggregator(filers []pb.ServerAddress, grpcDialOption grpc.DialOption) *MetaAggregator { +func NewMetaAggregator(filer *Filer, self pb.ServerAddress, grpcDialOption grpc.DialOption) *MetaAggregator { t := &MetaAggregator{ - filers: filers, + filer: filer, + self: self, grpcDialOption: grpcDialOption, + peerStatues: make(map[pb.ServerAddress]struct{}), } t.ListenersCond = sync.NewCond(&t.ListenersLock) t.MetaLogBuffer = log_buffer.NewLogBuffer("aggr", LogFlushInterval, nil, func() { @@ -40,10 +47,35 @@ func NewMetaAggregator(filers []pb.ServerAddress, grpcDialOption grpc.DialOption return t } -func (ma *MetaAggregator) StartLoopSubscribe(f *Filer, self pb.ServerAddress) { - for _, filer := range ma.filers { - go ma.subscribeToOneFiler(f, self, filer) +func (ma *MetaAggregator) OnPeerUpdate(update *master_pb.ClusterNodeUpdate) { + if update.NodeType != "filer" { + return } + + address := pb.ServerAddress(update.Address) + if update.IsAdd { + // every filer should subscribe to a new filer + ma.setActive(address, true) + go ma.subscribeToOneFiler(ma.filer, ma.self, address) + } else { + ma.setActive(address, false) + } +} + +func (ma *MetaAggregator) setActive(address pb.ServerAddress, isActive bool) { + ma.peerStatuesLock.Lock() + defer ma.peerStatuesLock.Unlock() + if isActive { + ma.peerStatues[address] = struct{}{} + } else { + delete(ma.peerStatues, address) + } +} +func (ma *MetaAggregator) isActive(address pb.ServerAddress)(isActive bool) { + ma.peerStatuesLock.Lock() + defer ma.peerStatuesLock.Unlock() + _, isActive = ma.peerStatues[address] + return } func (ma *MetaAggregator) subscribeToOneFiler(f *Filer, self pb.ServerAddress, peer pb.ServerAddress) { @@ -149,6 +181,10 @@ func (ma *MetaAggregator) subscribeToOneFiler(f *Filer, self pb.ServerAddress, p } }) + if !ma.isActive(peer) { + glog.V(0).Infof("stop subscribing remote %s meta change", peer) + return + } if err != nil { glog.V(0).Infof("subscribing remote %s meta change: %v", peer, err) time.Sleep(1733 * time.Millisecond) diff --git a/weed/pb/master.proto b/weed/pb/master.proto index d3ebee11f..3383d1dd5 100644 --- a/weed/pb/master.proto +++ b/weed/pb/master.proto @@ -304,6 +304,7 @@ message ListClusterNodesResponse { message ClusterNode { string address = 1; string version = 2; + bool is_leader = 3; } repeated ClusterNode cluster_nodes = 1; } diff --git a/weed/pb/master_pb/master.pb.go b/weed/pb/master_pb/master.pb.go index 0ee60f403..ca8a50931 100644 --- a/weed/pb/master_pb/master.pb.go +++ b/weed/pb/master_pb/master.pb.go @@ -3063,8 +3063,9 @@ type ListClusterNodesResponse_ClusterNode struct { sizeCache protoimpl.SizeCache unknownFields protoimpl.UnknownFields - Address string `protobuf:"bytes,1,opt,name=address,proto3" json:"address,omitempty"` - Version string `protobuf:"bytes,2,opt,name=version,proto3" json:"version,omitempty"` + Address string `protobuf:"bytes,1,opt,name=address,proto3" json:"address,omitempty"` + 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"` } func (x *ListClusterNodesResponse_ClusterNode) Reset() { @@ -3113,6 +3114,13 @@ func (x *ListClusterNodesResponse_ClusterNode) GetVersion() string { return "" } +func (x *ListClusterNodesResponse_ClusterNode) GetIsLeader() bool { + if x != nil { + return x.IsLeader + } + return false +} + var File_master_proto protoreflect.FileDescriptor var file_master_proto_rawDesc = []byte{ @@ -3558,7 +3566,7 @@ var file_master_proto_rawDesc = []byte{ 0x65, 0x22, 0x3a, 0x0a, 0x17, 0x4c, 0x69, 0x73, 0x74, 0x43, 0x6c, 0x75, 0x73, 0x74, 0x65, 0x72, 0x4e, 0x6f, 0x64, 0x65, 0x73, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x12, 0x1f, 0x0a, 0x0b, 0x63, 0x6c, 0x69, 0x65, 0x6e, 0x74, 0x5f, 0x74, 0x79, 0x70, 0x65, 0x18, 0x01, 0x20, 0x01, 0x28, - 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fs.readonlyFilerHandler) } - fs.filer.AggregateFromPeers(option.Host, option.Filers) + fs.filer.AggregateFromPeers(option.Host) fs.filer.LoadBuckets() diff --git a/weed/server/master_grpc_server_cluster.go b/weed/server/master_grpc_server_cluster.go index 8e80cade3..4a61d2e29 100644 --- a/weed/server/master_grpc_server_cluster.go +++ b/weed/server/master_grpc_server_cluster.go @@ -14,6 +14,7 @@ func (ms *MasterServer) ListClusterNodes(ctx context.Context, req *master_pb.Lis resp.ClusterNodes = append(resp.ClusterNodes, &master_pb.ListClusterNodesResponse_ClusterNode{ Address: string(node.Address), Version: node.Version, + IsLeader: ms.Cluster.IsOneLeader(node.Address), }) } return resp, nil diff --git a/weed/wdclient/masterclient.go b/weed/wdclient/masterclient.go index a2f6c7ffb..727d9cd34 100644 --- a/weed/wdclient/masterclient.go +++ b/weed/wdclient/masterclient.go @@ -21,6 +21,8 @@ type MasterClient struct { grpcDialOption grpc.DialOption vidMap + + OnPeerUpdate func(update *master_pb.ClusterNodeUpdate) } func NewMasterClient(grpcDialOption grpc.DialOption, clientType string, clientHost pb.ServerAddress, clientDataCenter string, masters []pb.ServerAddress) *MasterClient { @@ -151,10 +153,13 @@ func (mc *MasterClient) tryConnectToMaster(master pb.ServerAddress) (nextHintedL if resp.ClusterNodeUpdate != nil { update := resp.ClusterNodeUpdate - if update.IsAdd { - glog.V(0).Infof("+ %s %s leader:%v\n", update.NodeType, update.Address, update.IsLeader) - } else { - glog.V(0).Infof("- %s %s leader:%v\n", update.NodeType, update.Address, update.IsLeader) + if mc.OnPeerUpdate != nil { + if update.IsAdd { + glog.V(0).Infof("+ %s %s leader:%v\n", update.NodeType, update.Address, update.IsLeader) + } else { + glog.V(0).Infof("- %s %s leader:%v\n", update.NodeType, update.Address, update.IsLeader) + } + mc.OnPeerUpdate(update) } }