diff --git a/docker/compose/local-hashicorp-raft-compose.yml b/docker/compose/local-hashicorp-raft-compose.yml
index 69e80a446..14b5eb57a 100644
--- a/docker/compose/local-hashicorp-raft-compose.yml
+++ b/docker/compose/local-hashicorp-raft-compose.yml
@@ -6,7 +6,7 @@ services:
     ports:
       - 9333:9333
       - 19333:19333
-    command: "-v=4 master -volumeSizeLimitMB 100 -resumeState=false -raftHashicorp=true -ip=master0 -port=9333 -peers=master1:9334,master2:9335 -mdir=/data"
+    command: "-v=4 master -volumeSizeLimitMB 100 -raftHashicorp -ip=master0 -port=9333 -peers=master1:9334,master2:9335 -mdir=/data"
     volumes:
       - ./master/0:/data
     environment:
@@ -18,7 +18,7 @@ services:
     ports:
       - 9334:9334
       - 19334:19334
-    command: "-v=4 master -volumeSizeLimitMB 100 -resumeState=false -raftHashicorp=true -ip=master1 -port=9334 -peers=master0:9333,master2:9335 -mdir=/data"
+    command: "-v=4 master -volumeSizeLimitMB 100 -raftHashicorp -ip=master1 -port=9334 -peers=master0:9333,master2:9335 -mdir=/data"
     volumes:
       - ./master/1:/data
     environment:
@@ -30,7 +30,7 @@ services:
     ports:
       - 9335:9335
       - 19335:19335
-    command: "-v=4 master -volumeSizeLimitMB 100 -resumeState=false -raftHashicorp=true -ip=master2 -port=9335 -peers=master0:9333,master1:9334 -mdir=/data"
+    command: "-v=4 master -volumeSizeLimitMB 100 -raftHashicorp -ip=master2 -port=9335 -peers=master0:9333,master1:9334 -mdir=/data"
     volumes:
       - ./master/2:/data
     environment:
diff --git a/weed/pb/filer_pb/filer.pb.go b/weed/pb/filer_pb/filer.pb.go
index 16e19944d..2228e5699 100644
--- a/weed/pb/filer_pb/filer.pb.go
+++ b/weed/pb/filer_pb/filer.pb.go
@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.26.0
-// 	protoc        v3.17.3
+// 	protoc-gen-go v1.28.0
+// 	protoc        v3.19.4
 // source: filer.proto
 
 package filer_pb
diff --git a/weed/pb/filer_pb/filer_grpc.pb.go b/weed/pb/filer_pb/filer_grpc.pb.go
index 4a5f47d71..e5699fba7 100644
--- a/weed/pb/filer_pb/filer_grpc.pb.go
+++ b/weed/pb/filer_pb/filer_grpc.pb.go
@@ -11,7 +11,6 @@ import (
 
 // This is a compile-time assertion to ensure that this generated file
 // is compatible with the grpc package it is being compiled against.
-// Requires gRPC-Go v1.32.0 or later.
 const _ = grpc.SupportPackageIsVersion7
 
 // SeaweedFilerClient is the client API for SeaweedFiler service.
diff --git a/weed/pb/iam_pb/iam.pb.go b/weed/pb/iam_pb/iam.pb.go
index 89a4f1584..71a341b10 100644
--- a/weed/pb/iam_pb/iam.pb.go
+++ b/weed/pb/iam_pb/iam.pb.go
@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.26.0
-// 	protoc        v3.17.3
+// 	protoc-gen-go v1.28.0
+// 	protoc        v3.19.4
 // source: iam.proto
 
 package iam_pb
diff --git a/weed/pb/iam_pb/iam_grpc.pb.go b/weed/pb/iam_pb/iam_grpc.pb.go
index b9438a295..3688cf423 100644
--- a/weed/pb/iam_pb/iam_grpc.pb.go
+++ b/weed/pb/iam_pb/iam_grpc.pb.go
@@ -8,7 +8,6 @@ import (
 
 // This is a compile-time assertion to ensure that this generated file
 // is compatible with the grpc package it is being compiled against.
-// Requires gRPC-Go v1.32.0 or later.
 const _ = grpc.SupportPackageIsVersion7
 
 // SeaweedIdentityAccessManagementClient is the client API for SeaweedIdentityAccessManagement service.
diff --git a/weed/pb/master.proto b/weed/pb/master.proto
index 2ba5b8b63..bb43f833e 100644
--- a/weed/pb/master.proto
+++ b/weed/pb/master.proto
@@ -37,6 +37,12 @@ service Seaweed {
   }
   rpc Ping (PingRequest) returns (PingResponse) {
   }
+  rpc RaftListClusterServers (RaftListClusterServersRequest) returns (RaftListClusterServersResponse) {
+  }
+  rpc RaftAddServer (RaftAddServerRequest) returns (RaftAddServerResponse) {
+  }
+  rpc RaftRemoveServer (RaftRemoveServerRequest) returns (RaftRemoveServerResponse) {
+  }
 }
 
 //////////////////////////////////////////////////
@@ -336,3 +342,28 @@ message PingRequest {
 }
 message PingResponse {
 }
+
+message RaftAddServerRequest {
+  string id = 1;
+  string address = 2;
+  bool voter = 3;
+}
+message RaftAddServerResponse {
+}
+
+message RaftRemoveServerRequest {
+  string id = 1;
+}
+message RaftRemoveServerResponse {
+}
+
+message RaftListClusterServersRequest {
+}
+message RaftListClusterServersResponse {
+  message ClusterServers {
+    string id = 1;
+    string address = 2;
+    string suffrage = 3; //
+  }
+  repeated ClusterServers cluster_servers = 1;
+}
\ No newline at end of file
diff --git a/weed/pb/master_pb/master.pb.go b/weed/pb/master_pb/master.pb.go
index 31db35d22..a39b1e953 100644
--- a/weed/pb/master_pb/master.pb.go
+++ b/weed/pb/master_pb/master.pb.go
@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.26.0
-// 	protoc        v3.17.3
+// 	protoc-gen-go v1.28.0
+// 	protoc        v3.19.4
 // source: master.proto
 
 package master_pb
@@ -2961,6 +2961,277 @@ func (*PingResponse) Descriptor() ([]byte, []int) {
 	return file_master_proto_rawDescGZIP(), []int{44}
 }
 
+type RaftAddServerRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Id      string `protobuf:"bytes,1,opt,name=id,proto3" json:"id,omitempty"`
+	Address string `protobuf:"bytes,2,opt,name=address,proto3" json:"address,omitempty"`
+	Voter   bool   `protobuf:"varint,3,opt,name=voter,proto3" json:"voter,omitempty"`
+}
+
+func (x *RaftAddServerRequest) Reset() {
+	*x = RaftAddServerRequest{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_master_proto_msgTypes[45]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *RaftAddServerRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*RaftAddServerRequest) ProtoMessage() {}
+
+func (x *RaftAddServerRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_master_proto_msgTypes[45]
+	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 RaftAddServerRequest.ProtoReflect.Descriptor instead.
+func (*RaftAddServerRequest) Descriptor() ([]byte, []int) {
+	return file_master_proto_rawDescGZIP(), []int{45}
+}
+
+func (x *RaftAddServerRequest) GetId() string {
+	if x != nil {
+		return x.Id
+	}
+	return ""
+}
+
+func (x *RaftAddServerRequest) GetAddress() string {
+	if x != nil {
+		return x.Address
+	}
+	return ""
+}
+
+func (x *RaftAddServerRequest) GetVoter() bool {
+	if x != nil {
+		return x.Voter
+	}
+	return false
+}
+
+type RaftAddServerResponse struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+}
+
+func (x *RaftAddServerResponse) Reset() {
+	*x = RaftAddServerResponse{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_master_proto_msgTypes[46]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *RaftAddServerResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*RaftAddServerResponse) ProtoMessage() {}
+
+func (x *RaftAddServerResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_master_proto_msgTypes[46]
+	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 RaftAddServerResponse.ProtoReflect.Descriptor instead.
+func (*RaftAddServerResponse) Descriptor() ([]byte, []int) {
+	return file_master_proto_rawDescGZIP(), []int{46}
+}
+
+type RaftRemoveServerRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Id string `protobuf:"bytes,1,opt,name=id,proto3" json:"id,omitempty"`
+}
+
+func (x *RaftRemoveServerRequest) Reset() {
+	*x = RaftRemoveServerRequest{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_master_proto_msgTypes[47]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *RaftRemoveServerRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*RaftRemoveServerRequest) ProtoMessage() {}
+
+func (x *RaftRemoveServerRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_master_proto_msgTypes[47]
+	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 RaftRemoveServerRequest.ProtoReflect.Descriptor instead.
+func (*RaftRemoveServerRequest) Descriptor() ([]byte, []int) {
+	return file_master_proto_rawDescGZIP(), []int{47}
+}
+
+func (x *RaftRemoveServerRequest) GetId() string {
+	if x != nil {
+		return x.Id
+	}
+	return ""
+}
+
+type RaftRemoveServerResponse struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+}
+
+func (x *RaftRemoveServerResponse) Reset() {
+	*x = RaftRemoveServerResponse{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_master_proto_msgTypes[48]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *RaftRemoveServerResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*RaftRemoveServerResponse) ProtoMessage() {}
+
+func (x *RaftRemoveServerResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_master_proto_msgTypes[48]
+	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 RaftRemoveServerResponse.ProtoReflect.Descriptor instead.
+func (*RaftRemoveServerResponse) Descriptor() ([]byte, []int) {
+	return file_master_proto_rawDescGZIP(), []int{48}
+}
+
+type RaftListClusterServersRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+}
+
+func (x *RaftListClusterServersRequest) Reset() {
+	*x = RaftListClusterServersRequest{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_master_proto_msgTypes[49]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *RaftListClusterServersRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*RaftListClusterServersRequest) ProtoMessage() {}
+
+func (x *RaftListClusterServersRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_master_proto_msgTypes[49]
+	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 RaftListClusterServersRequest.ProtoReflect.Descriptor instead.
+func (*RaftListClusterServersRequest) Descriptor() ([]byte, []int) {
+	return file_master_proto_rawDescGZIP(), []int{49}
+}
+
+type RaftListClusterServersResponse struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	ClusterServers []*RaftListClusterServersResponse_ClusterServers `protobuf:"bytes,1,rep,name=cluster_servers,json=clusterServers,proto3" json:"cluster_servers,omitempty"`
+}
+
+func (x *RaftListClusterServersResponse) Reset() {
+	*x = RaftListClusterServersResponse{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_master_proto_msgTypes[50]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *RaftListClusterServersResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*RaftListClusterServersResponse) ProtoMessage() {}
+
+func (x *RaftListClusterServersResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_master_proto_msgTypes[50]
+	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 RaftListClusterServersResponse.ProtoReflect.Descriptor instead.
+func (*RaftListClusterServersResponse) Descriptor() ([]byte, []int) {
+	return file_master_proto_rawDescGZIP(), []int{50}
+}
+
+func (x *RaftListClusterServersResponse) GetClusterServers() []*RaftListClusterServersResponse_ClusterServers {
+	if x != nil {
+		return x.ClusterServers
+	}
+	return nil
+}
+
 type SuperBlockExtra_ErasureCoding struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -2974,7 +3245,7 @@ type SuperBlockExtra_ErasureCoding struct {
 func (x *SuperBlockExtra_ErasureCoding) Reset() {
 	*x = SuperBlockExtra_ErasureCoding{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_master_proto_msgTypes[47]
+		mi := &file_master_proto_msgTypes[53]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -2987,7 +3258,7 @@ func (x *SuperBlockExtra_ErasureCoding) String() string {
 func (*SuperBlockExtra_ErasureCoding) ProtoMessage() {}
 
 func (x *SuperBlockExtra_ErasureCoding) ProtoReflect() protoreflect.Message {
-	mi := &file_master_proto_msgTypes[47]
+	mi := &file_master_proto_msgTypes[53]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -3038,7 +3309,7 @@ type LookupVolumeResponse_VolumeIdLocation struct {
 func (x *LookupVolumeResponse_VolumeIdLocation) Reset() {
 	*x = LookupVolumeResponse_VolumeIdLocation{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_master_proto_msgTypes[48]
+		mi := &file_master_proto_msgTypes[54]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -3051,7 +3322,7 @@ func (x *LookupVolumeResponse_VolumeIdLocation) String() string {
 func (*LookupVolumeResponse_VolumeIdLocation) ProtoMessage() {}
 
 func (x *LookupVolumeResponse_VolumeIdLocation) ProtoReflect() protoreflect.Message {
-	mi := &file_master_proto_msgTypes[48]
+	mi := &file_master_proto_msgTypes[54]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -3107,7 +3378,7 @@ type LookupEcVolumeResponse_EcShardIdLocation struct {
 func (x *LookupEcVolumeResponse_EcShardIdLocation) Reset() {
 	*x = LookupEcVolumeResponse_EcShardIdLocation{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_master_proto_msgTypes[53]
+		mi := &file_master_proto_msgTypes[59]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -3120,7 +3391,7 @@ func (x *LookupEcVolumeResponse_EcShardIdLocation) String() string {
 func (*LookupEcVolumeResponse_EcShardIdLocation) ProtoMessage() {}
 
 func (x *LookupEcVolumeResponse_EcShardIdLocation) ProtoReflect() protoreflect.Message {
-	mi := &file_master_proto_msgTypes[53]
+	mi := &file_master_proto_msgTypes[59]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -3163,7 +3434,7 @@ type ListClusterNodesResponse_ClusterNode struct {
 func (x *ListClusterNodesResponse_ClusterNode) Reset() {
 	*x = ListClusterNodesResponse_ClusterNode{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_master_proto_msgTypes[54]
+		mi := &file_master_proto_msgTypes[60]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -3176,7 +3447,7 @@ func (x *ListClusterNodesResponse_ClusterNode) String() string {
 func (*ListClusterNodesResponse_ClusterNode) ProtoMessage() {}
 
 func (x *ListClusterNodesResponse_ClusterNode) ProtoReflect() protoreflect.Message {
-	mi := &file_master_proto_msgTypes[54]
+	mi := &file_master_proto_msgTypes[60]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -3213,6 +3484,69 @@ func (x *ListClusterNodesResponse_ClusterNode) GetIsLeader() bool {
 	return false
 }
 
+type RaftListClusterServersResponse_ClusterServers struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Id       string `protobuf:"bytes,1,opt,name=id,proto3" json:"id,omitempty"`
+	Address  string `protobuf:"bytes,2,opt,name=address,proto3" json:"address,omitempty"`
+	Suffrage string `protobuf:"bytes,3,opt,name=suffrage,proto3" json:"suffrage,omitempty"`
+}
+
+func (x *RaftListClusterServersResponse_ClusterServers) Reset() {
+	*x = RaftListClusterServersResponse_ClusterServers{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_master_proto_msgTypes[61]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *RaftListClusterServersResponse_ClusterServers) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*RaftListClusterServersResponse_ClusterServers) ProtoMessage() {}
+
+func (x *RaftListClusterServersResponse_ClusterServers) ProtoReflect() protoreflect.Message {
+	mi := &file_master_proto_msgTypes[61]
+	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 RaftListClusterServersResponse_ClusterServers.ProtoReflect.Descriptor instead.
+func (*RaftListClusterServersResponse_ClusterServers) Descriptor() ([]byte, []int) {
+	return file_master_proto_rawDescGZIP(), []int{50, 0}
+}
+
+func (x *RaftListClusterServersResponse_ClusterServers) GetId() string {
+	if x != nil {
+		return x.Id
+	}
+	return ""
+}
+
+func (x *RaftListClusterServersResponse_ClusterServers) GetAddress() string {
+	if x != nil {
+		return x.Address
+	}
+	return ""
+}
+
+func (x *RaftListClusterServersResponse_ClusterServers) GetSuffrage() string {
+	if x != nil {
+		return x.Suffrage
+	}
+	return ""
+}
+
 var File_master_proto protoreflect.FileDescriptor
 
 var file_master_proto_rawDesc = []byte{
@@ -3705,92 +4039,137 @@ var file_master_proto_rawDesc = []byte{
 	0x28, 0x09, 0x52, 0x06, 0x74, 0x61, 0x72, 0x67, 0x65, 0x74, 0x12, 0x1f, 0x0a, 0x0b, 0x74, 0x61,
 	0x72, 0x67, 0x65, 0x74, 0x5f, 0x74, 0x79, 0x70, 0x65, 0x18, 0x02, 0x20, 0x01, 0x28, 0x09, 0x52,
 	0x0a, 0x74, 0x61, 0x72, 0x67, 0x65, 0x74, 0x54, 0x79, 0x70, 0x65, 0x22, 0x0e, 0x0a, 0x0c, 0x50,
-	0x69, 0x6e, 0x67, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x32, 0x89, 0x0a, 0x0a, 0x07,
-	0x53, 0x65, 0x61, 0x77, 0x65, 0x65, 0x64, 0x12, 0x49, 0x0a, 0x0d, 0x53, 0x65, 0x6e, 0x64, 0x48,
-	0x65, 0x61, 0x72, 0x74, 0x62, 0x65, 0x61, 0x74, 0x12, 0x14, 0x2e, 0x6d, 0x61, 0x73, 0x74, 0x65,
-	0x72, 0x5f, 0x70, 0x62, 0x2e, 0x48, 0x65, 0x61, 0x72, 0x74, 0x62, 0x65, 0x61, 0x74, 0x1a, 0x1c,
-	0x2e, 0x6d, 0x61, 0x73, 0x74, 0x65, 0x72, 0x5f, 0x70, 0x62, 0x2e, 0x48, 0x65, 0x61, 0x72, 0x74,
-	0x62, 0x65, 0x61, 0x74, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x22, 0x00, 0x28, 0x01,
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 }
 
 var (
@@ -3805,7 +4184,7 @@ func file_master_proto_rawDescGZIP() []byte {
 	return file_master_proto_rawDescData
 }
 
-var file_master_proto_msgTypes = make([]protoimpl.MessageInfo, 55)
+var file_master_proto_msgTypes = make([]protoimpl.MessageInfo, 62)
 var file_master_proto_goTypes = []interface{}{
 	(*Heartbeat)(nil),                             // 0: master_pb.Heartbeat
 	(*HeartbeatResponse)(nil),                     // 1: master_pb.HeartbeatResponse
@@ -3852,16 +4231,23 @@ var file_master_proto_goTypes = []interface{}{
 	(*ReleaseAdminTokenResponse)(nil),             // 42: master_pb.ReleaseAdminTokenResponse
 	(*PingRequest)(nil),                           // 43: master_pb.PingRequest
 	(*PingResponse)(nil),                          // 44: master_pb.PingResponse
-	nil,                                           // 45: master_pb.Heartbeat.MaxVolumeCountsEntry
-	nil,                                           // 46: master_pb.StorageBackend.PropertiesEntry
-	(*SuperBlockExtra_ErasureCoding)(nil),         // 47: master_pb.SuperBlockExtra.ErasureCoding
-	(*LookupVolumeResponse_VolumeIdLocation)(nil), // 48: master_pb.LookupVolumeResponse.VolumeIdLocation
-	nil, // 49: master_pb.DataNodeInfo.DiskInfosEntry
-	nil, // 50: master_pb.RackInfo.DiskInfosEntry
-	nil, // 51: master_pb.DataCenterInfo.DiskInfosEntry
-	nil, // 52: master_pb.TopologyInfo.DiskInfosEntry
-	(*LookupEcVolumeResponse_EcShardIdLocation)(nil), // 53: master_pb.LookupEcVolumeResponse.EcShardIdLocation
-	(*ListClusterNodesResponse_ClusterNode)(nil),     // 54: master_pb.ListClusterNodesResponse.ClusterNode
+	(*RaftAddServerRequest)(nil),                  // 45: master_pb.RaftAddServerRequest
+	(*RaftAddServerResponse)(nil),                 // 46: master_pb.RaftAddServerResponse
+	(*RaftRemoveServerRequest)(nil),               // 47: master_pb.RaftRemoveServerRequest
+	(*RaftRemoveServerResponse)(nil),              // 48: master_pb.RaftRemoveServerResponse
+	(*RaftListClusterServersRequest)(nil),         // 49: master_pb.RaftListClusterServersRequest
+	(*RaftListClusterServersResponse)(nil),        // 50: master_pb.RaftListClusterServersResponse
+	nil,                                           // 51: master_pb.Heartbeat.MaxVolumeCountsEntry
+	nil,                                           // 52: master_pb.StorageBackend.PropertiesEntry
+	(*SuperBlockExtra_ErasureCoding)(nil),         // 53: master_pb.SuperBlockExtra.ErasureCoding
+	(*LookupVolumeResponse_VolumeIdLocation)(nil), // 54: master_pb.LookupVolumeResponse.VolumeIdLocation
+	nil, // 55: master_pb.DataNodeInfo.DiskInfosEntry
+	nil, // 56: master_pb.RackInfo.DiskInfosEntry
+	nil, // 57: master_pb.DataCenterInfo.DiskInfosEntry
+	nil, // 58: master_pb.TopologyInfo.DiskInfosEntry
+	(*LookupEcVolumeResponse_EcShardIdLocation)(nil),      // 59: master_pb.LookupEcVolumeResponse.EcShardIdLocation
+	(*ListClusterNodesResponse_ClusterNode)(nil),          // 60: master_pb.ListClusterNodesResponse.ClusterNode
+	(*RaftListClusterServersResponse_ClusterServers)(nil), // 61: master_pb.RaftListClusterServersResponse.ClusterServers
 }
 var file_master_proto_depIdxs = []int32{
 	2,  // 0: master_pb.Heartbeat.volumes:type_name -> master_pb.VolumeInformationMessage
@@ -3870,70 +4256,77 @@ var file_master_proto_depIdxs = []int32{
 	4,  // 3: master_pb.Heartbeat.ec_shards:type_name -> master_pb.VolumeEcShardInformationMessage
 	4,  // 4: master_pb.Heartbeat.new_ec_shards:type_name -> master_pb.VolumeEcShardInformationMessage
 	4,  // 5: master_pb.Heartbeat.deleted_ec_shards:type_name -> master_pb.VolumeEcShardInformationMessage
-	45, // 6: master_pb.Heartbeat.max_volume_counts:type_name -> master_pb.Heartbeat.MaxVolumeCountsEntry
+	51, // 6: master_pb.Heartbeat.max_volume_counts:type_name -> master_pb.Heartbeat.MaxVolumeCountsEntry
 	5,  // 7: master_pb.HeartbeatResponse.storage_backends:type_name -> master_pb.StorageBackend
-	46, // 8: master_pb.StorageBackend.properties:type_name -> master_pb.StorageBackend.PropertiesEntry
-	47, // 9: master_pb.SuperBlockExtra.erasure_coding:type_name -> master_pb.SuperBlockExtra.ErasureCoding
+	52, // 8: master_pb.StorageBackend.properties:type_name -> master_pb.StorageBackend.PropertiesEntry
+	53, // 9: master_pb.SuperBlockExtra.erasure_coding:type_name -> master_pb.SuperBlockExtra.ErasureCoding
 	9,  // 10: master_pb.KeepConnectedResponse.volume_location:type_name -> master_pb.VolumeLocation
 	10, // 11: master_pb.KeepConnectedResponse.cluster_node_update:type_name -> master_pb.ClusterNodeUpdate
-	48, // 12: master_pb.LookupVolumeResponse.volume_id_locations:type_name -> master_pb.LookupVolumeResponse.VolumeIdLocation
+	54, // 12: master_pb.LookupVolumeResponse.volume_id_locations:type_name -> master_pb.LookupVolumeResponse.VolumeIdLocation
 	14, // 13: master_pb.AssignResponse.replicas:type_name -> master_pb.Location
 	14, // 14: master_pb.AssignResponse.location:type_name -> master_pb.Location
 	19, // 15: master_pb.CollectionListResponse.collections:type_name -> master_pb.Collection
 	2,  // 16: master_pb.DiskInfo.volume_infos:type_name -> master_pb.VolumeInformationMessage
 	4,  // 17: master_pb.DiskInfo.ec_shard_infos:type_name -> master_pb.VolumeEcShardInformationMessage
-	49, // 18: master_pb.DataNodeInfo.diskInfos:type_name -> master_pb.DataNodeInfo.DiskInfosEntry
+	55, // 18: master_pb.DataNodeInfo.diskInfos:type_name -> master_pb.DataNodeInfo.DiskInfosEntry
 	25, // 19: master_pb.RackInfo.data_node_infos:type_name -> master_pb.DataNodeInfo
-	50, // 20: master_pb.RackInfo.diskInfos:type_name -> master_pb.RackInfo.DiskInfosEntry
+	56, // 20: master_pb.RackInfo.diskInfos:type_name -> master_pb.RackInfo.DiskInfosEntry
 	26, // 21: master_pb.DataCenterInfo.rack_infos:type_name -> master_pb.RackInfo
-	51, // 22: master_pb.DataCenterInfo.diskInfos:type_name -> master_pb.DataCenterInfo.DiskInfosEntry
+	57, // 22: master_pb.DataCenterInfo.diskInfos:type_name -> master_pb.DataCenterInfo.DiskInfosEntry
 	27, // 23: master_pb.TopologyInfo.data_center_infos:type_name -> master_pb.DataCenterInfo
-	52, // 24: master_pb.TopologyInfo.diskInfos:type_name -> master_pb.TopologyInfo.DiskInfosEntry
+	58, // 24: master_pb.TopologyInfo.diskInfos:type_name -> master_pb.TopologyInfo.DiskInfosEntry
 	28, // 25: master_pb.VolumeListResponse.topology_info:type_name -> master_pb.TopologyInfo
-	53, // 26: master_pb.LookupEcVolumeResponse.shard_id_locations:type_name -> master_pb.LookupEcVolumeResponse.EcShardIdLocation
+	59, // 26: master_pb.LookupEcVolumeResponse.shard_id_locations:type_name -> master_pb.LookupEcVolumeResponse.EcShardIdLocation
 	5,  // 27: master_pb.GetMasterConfigurationResponse.storage_backends:type_name -> master_pb.StorageBackend
-	54, // 28: master_pb.ListClusterNodesResponse.cluster_nodes:type_name -> master_pb.ListClusterNodesResponse.ClusterNode
-	14, // 29: master_pb.LookupVolumeResponse.VolumeIdLocation.locations:type_name -> master_pb.Location
-	24, // 30: master_pb.DataNodeInfo.DiskInfosEntry.value:type_name -> master_pb.DiskInfo
-	24, // 31: master_pb.RackInfo.DiskInfosEntry.value:type_name -> master_pb.DiskInfo
-	24, // 32: master_pb.DataCenterInfo.DiskInfosEntry.value:type_name -> master_pb.DiskInfo
-	24, // 33: master_pb.TopologyInfo.DiskInfosEntry.value:type_name -> master_pb.DiskInfo
-	14, // 34: master_pb.LookupEcVolumeResponse.EcShardIdLocation.locations:type_name -> master_pb.Location
-	0,  // 35: master_pb.Seaweed.SendHeartbeat:input_type -> master_pb.Heartbeat
-	8,  // 36: master_pb.Seaweed.KeepConnected:input_type -> master_pb.KeepConnectedRequest
-	12, // 37: master_pb.Seaweed.LookupVolume:input_type -> master_pb.LookupVolumeRequest
-	15, // 38: master_pb.Seaweed.Assign:input_type -> master_pb.AssignRequest
-	17, // 39: master_pb.Seaweed.Statistics:input_type -> master_pb.StatisticsRequest
-	20, // 40: master_pb.Seaweed.CollectionList:input_type -> master_pb.CollectionListRequest
-	22, // 41: master_pb.Seaweed.CollectionDelete:input_type -> master_pb.CollectionDeleteRequest
-	29, // 42: master_pb.Seaweed.VolumeList:input_type -> master_pb.VolumeListRequest
-	31, // 43: master_pb.Seaweed.LookupEcVolume:input_type -> master_pb.LookupEcVolumeRequest
-	33, // 44: master_pb.Seaweed.VacuumVolume:input_type -> master_pb.VacuumVolumeRequest
-	35, // 45: master_pb.Seaweed.GetMasterConfiguration:input_type -> master_pb.GetMasterConfigurationRequest
-	37, // 46: master_pb.Seaweed.ListClusterNodes:input_type -> master_pb.ListClusterNodesRequest
-	39, // 47: master_pb.Seaweed.LeaseAdminToken:input_type -> master_pb.LeaseAdminTokenRequest
-	41, // 48: master_pb.Seaweed.ReleaseAdminToken:input_type -> master_pb.ReleaseAdminTokenRequest
-	43, // 49: master_pb.Seaweed.Ping:input_type -> master_pb.PingRequest
-	1,  // 50: master_pb.Seaweed.SendHeartbeat:output_type -> master_pb.HeartbeatResponse
-	11, // 51: master_pb.Seaweed.KeepConnected:output_type -> master_pb.KeepConnectedResponse
-	13, // 52: master_pb.Seaweed.LookupVolume:output_type -> master_pb.LookupVolumeResponse
-	16, // 53: master_pb.Seaweed.Assign:output_type -> master_pb.AssignResponse
-	18, // 54: master_pb.Seaweed.Statistics:output_type -> master_pb.StatisticsResponse
-	21, // 55: master_pb.Seaweed.CollectionList:output_type -> master_pb.CollectionListResponse
-	23, // 56: master_pb.Seaweed.CollectionDelete:output_type -> master_pb.CollectionDeleteResponse
-	30, // 57: master_pb.Seaweed.VolumeList:output_type -> master_pb.VolumeListResponse
-	32, // 58: master_pb.Seaweed.LookupEcVolume:output_type -> master_pb.LookupEcVolumeResponse
-	34, // 59: master_pb.Seaweed.VacuumVolume:output_type -> master_pb.VacuumVolumeResponse
-	36, // 60: master_pb.Seaweed.GetMasterConfiguration:output_type -> master_pb.GetMasterConfigurationResponse
-	38, // 61: master_pb.Seaweed.ListClusterNodes:output_type -> master_pb.ListClusterNodesResponse
-	40, // 62: master_pb.Seaweed.LeaseAdminToken:output_type -> master_pb.LeaseAdminTokenResponse
-	42, // 63: master_pb.Seaweed.ReleaseAdminToken:output_type -> master_pb.ReleaseAdminTokenResponse
-	44, // 64: master_pb.Seaweed.Ping:output_type -> master_pb.PingResponse
-	50, // [50:65] is the sub-list for method output_type
-	35, // [35:50] is the sub-list for method input_type
-	35, // [35:35] is the sub-list for extension type_name
-	35, // [35:35] is the sub-list for extension extendee
-	0,  // [0:35] is the sub-list for field type_name
+	60, // 28: master_pb.ListClusterNodesResponse.cluster_nodes:type_name -> master_pb.ListClusterNodesResponse.ClusterNode
+	61, // 29: master_pb.RaftListClusterServersResponse.cluster_servers:type_name -> master_pb.RaftListClusterServersResponse.ClusterServers
+	14, // 30: master_pb.LookupVolumeResponse.VolumeIdLocation.locations:type_name -> master_pb.Location
+	24, // 31: master_pb.DataNodeInfo.DiskInfosEntry.value:type_name -> master_pb.DiskInfo
+	24, // 32: master_pb.RackInfo.DiskInfosEntry.value:type_name -> master_pb.DiskInfo
+	24, // 33: master_pb.DataCenterInfo.DiskInfosEntry.value:type_name -> master_pb.DiskInfo
+	24, // 34: master_pb.TopologyInfo.DiskInfosEntry.value:type_name -> master_pb.DiskInfo
+	14, // 35: master_pb.LookupEcVolumeResponse.EcShardIdLocation.locations:type_name -> master_pb.Location
+	0,  // 36: master_pb.Seaweed.SendHeartbeat:input_type -> master_pb.Heartbeat
+	8,  // 37: master_pb.Seaweed.KeepConnected:input_type -> master_pb.KeepConnectedRequest
+	12, // 38: master_pb.Seaweed.LookupVolume:input_type -> master_pb.LookupVolumeRequest
+	15, // 39: master_pb.Seaweed.Assign:input_type -> master_pb.AssignRequest
+	17, // 40: master_pb.Seaweed.Statistics:input_type -> master_pb.StatisticsRequest
+	20, // 41: master_pb.Seaweed.CollectionList:input_type -> master_pb.CollectionListRequest
+	22, // 42: master_pb.Seaweed.CollectionDelete:input_type -> master_pb.CollectionDeleteRequest
+	29, // 43: master_pb.Seaweed.VolumeList:input_type -> master_pb.VolumeListRequest
+	31, // 44: master_pb.Seaweed.LookupEcVolume:input_type -> master_pb.LookupEcVolumeRequest
+	33, // 45: master_pb.Seaweed.VacuumVolume:input_type -> master_pb.VacuumVolumeRequest
+	35, // 46: master_pb.Seaweed.GetMasterConfiguration:input_type -> master_pb.GetMasterConfigurationRequest
+	37, // 47: master_pb.Seaweed.ListClusterNodes:input_type -> master_pb.ListClusterNodesRequest
+	39, // 48: master_pb.Seaweed.LeaseAdminToken:input_type -> master_pb.LeaseAdminTokenRequest
+	41, // 49: master_pb.Seaweed.ReleaseAdminToken:input_type -> master_pb.ReleaseAdminTokenRequest
+	43, // 50: master_pb.Seaweed.Ping:input_type -> master_pb.PingRequest
+	49, // 51: master_pb.Seaweed.RaftListClusterServers:input_type -> master_pb.RaftListClusterServersRequest
+	45, // 52: master_pb.Seaweed.RaftAddServer:input_type -> master_pb.RaftAddServerRequest
+	47, // 53: master_pb.Seaweed.RaftRemoveServer:input_type -> master_pb.RaftRemoveServerRequest
+	1,  // 54: master_pb.Seaweed.SendHeartbeat:output_type -> master_pb.HeartbeatResponse
+	11, // 55: master_pb.Seaweed.KeepConnected:output_type -> master_pb.KeepConnectedResponse
+	13, // 56: master_pb.Seaweed.LookupVolume:output_type -> master_pb.LookupVolumeResponse
+	16, // 57: master_pb.Seaweed.Assign:output_type -> master_pb.AssignResponse
+	18, // 58: master_pb.Seaweed.Statistics:output_type -> master_pb.StatisticsResponse
+	21, // 59: master_pb.Seaweed.CollectionList:output_type -> master_pb.CollectionListResponse
+	23, // 60: master_pb.Seaweed.CollectionDelete:output_type -> master_pb.CollectionDeleteResponse
+	30, // 61: master_pb.Seaweed.VolumeList:output_type -> master_pb.VolumeListResponse
+	32, // 62: master_pb.Seaweed.LookupEcVolume:output_type -> master_pb.LookupEcVolumeResponse
+	34, // 63: master_pb.Seaweed.VacuumVolume:output_type -> master_pb.VacuumVolumeResponse
+	36, // 64: master_pb.Seaweed.GetMasterConfiguration:output_type -> master_pb.GetMasterConfigurationResponse
+	38, // 65: master_pb.Seaweed.ListClusterNodes:output_type -> master_pb.ListClusterNodesResponse
+	40, // 66: master_pb.Seaweed.LeaseAdminToken:output_type -> master_pb.LeaseAdminTokenResponse
+	42, // 67: master_pb.Seaweed.ReleaseAdminToken:output_type -> master_pb.ReleaseAdminTokenResponse
+	44, // 68: master_pb.Seaweed.Ping:output_type -> master_pb.PingResponse
+	50, // 69: master_pb.Seaweed.RaftListClusterServers:output_type -> master_pb.RaftListClusterServersResponse
+	46, // 70: master_pb.Seaweed.RaftAddServer:output_type -> master_pb.RaftAddServerResponse
+	48, // 71: master_pb.Seaweed.RaftRemoveServer:output_type -> master_pb.RaftRemoveServerResponse
+	54, // [54:72] is the sub-list for method output_type
+	36, // [36:54] is the sub-list for method input_type
+	36, // [36:36] is the sub-list for extension type_name
+	36, // [36:36] is the sub-list for extension extendee
+	0,  // [0:36] is the sub-list for field type_name
 }
 
 func init() { file_master_proto_init() }
@@ -4482,8 +4875,32 @@ func file_master_proto_init() {
 				return nil
 			}
 		}
+		file_master_proto_msgTypes[45].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*RaftAddServerRequest); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_master_proto_msgTypes[46].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*RaftAddServerResponse); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
 		file_master_proto_msgTypes[47].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*SuperBlockExtra_ErasureCoding); i {
+			switch v := v.(*RaftRemoveServerRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -4495,7 +4912,31 @@ func file_master_proto_init() {
 			}
 		}
 		file_master_proto_msgTypes[48].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*LookupVolumeResponse_VolumeIdLocation); i {
+			switch v := v.(*RaftRemoveServerResponse); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_master_proto_msgTypes[49].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*RaftListClusterServersRequest); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_master_proto_msgTypes[50].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*RaftListClusterServersResponse); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -4507,7 +4948,7 @@ func file_master_proto_init() {
 			}
 		}
 		file_master_proto_msgTypes[53].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*LookupEcVolumeResponse_EcShardIdLocation); i {
+			switch v := v.(*SuperBlockExtra_ErasureCoding); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -4519,6 +4960,30 @@ func file_master_proto_init() {
 			}
 		}
 		file_master_proto_msgTypes[54].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*LookupVolumeResponse_VolumeIdLocation); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_master_proto_msgTypes[59].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*LookupEcVolumeResponse_EcShardIdLocation); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_master_proto_msgTypes[60].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*ListClusterNodesResponse_ClusterNode); i {
 			case 0:
 				return &v.state
@@ -4530,6 +4995,18 @@ func file_master_proto_init() {
 				return nil
 			}
 		}
+		file_master_proto_msgTypes[61].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*RaftListClusterServersResponse_ClusterServers); 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{
@@ -4537,7 +5014,7 @@ func file_master_proto_init() {
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: file_master_proto_rawDesc,
 			NumEnums:      0,
-			NumMessages:   55,
+			NumMessages:   62,
 			NumExtensions: 0,
 			NumServices:   1,
 		},
diff --git a/weed/pb/master_pb/master_grpc.pb.go b/weed/pb/master_pb/master_grpc.pb.go
index 56057d555..ac6ff545d 100644
--- a/weed/pb/master_pb/master_grpc.pb.go
+++ b/weed/pb/master_pb/master_grpc.pb.go
@@ -11,7 +11,6 @@ import (
 
 // This is a compile-time assertion to ensure that this generated file
 // is compatible with the grpc package it is being compiled against.
-// Requires gRPC-Go v1.32.0 or later.
 const _ = grpc.SupportPackageIsVersion7
 
 // SeaweedClient is the client API for Seaweed service.
@@ -33,6 +32,9 @@ type SeaweedClient interface {
 	LeaseAdminToken(ctx context.Context, in *LeaseAdminTokenRequest, opts ...grpc.CallOption) (*LeaseAdminTokenResponse, error)
 	ReleaseAdminToken(ctx context.Context, in *ReleaseAdminTokenRequest, opts ...grpc.CallOption) (*ReleaseAdminTokenResponse, error)
 	Ping(ctx context.Context, in *PingRequest, opts ...grpc.CallOption) (*PingResponse, error)
+	RaftListClusterServers(ctx context.Context, in *RaftListClusterServersRequest, opts ...grpc.CallOption) (*RaftListClusterServersResponse, error)
+	RaftAddServer(ctx context.Context, in *RaftAddServerRequest, opts ...grpc.CallOption) (*RaftAddServerResponse, error)
+	RaftRemoveServer(ctx context.Context, in *RaftRemoveServerRequest, opts ...grpc.CallOption) (*RaftRemoveServerResponse, error)
 }
 
 type seaweedClient struct {
@@ -222,6 +224,33 @@ func (c *seaweedClient) Ping(ctx context.Context, in *PingRequest, opts ...grpc.
 	return out, nil
 }
 
+func (c *seaweedClient) RaftListClusterServers(ctx context.Context, in *RaftListClusterServersRequest, opts ...grpc.CallOption) (*RaftListClusterServersResponse, error) {
+	out := new(RaftListClusterServersResponse)
+	err := c.cc.Invoke(ctx, "/master_pb.Seaweed/RaftListClusterServers", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *seaweedClient) RaftAddServer(ctx context.Context, in *RaftAddServerRequest, opts ...grpc.CallOption) (*RaftAddServerResponse, error) {
+	out := new(RaftAddServerResponse)
+	err := c.cc.Invoke(ctx, "/master_pb.Seaweed/RaftAddServer", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *seaweedClient) RaftRemoveServer(ctx context.Context, in *RaftRemoveServerRequest, opts ...grpc.CallOption) (*RaftRemoveServerResponse, error) {
+	out := new(RaftRemoveServerResponse)
+	err := c.cc.Invoke(ctx, "/master_pb.Seaweed/RaftRemoveServer", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
 // SeaweedServer is the server API for Seaweed service.
 // All implementations must embed UnimplementedSeaweedServer
 // for forward compatibility
@@ -241,6 +270,9 @@ type SeaweedServer interface {
 	LeaseAdminToken(context.Context, *LeaseAdminTokenRequest) (*LeaseAdminTokenResponse, error)
 	ReleaseAdminToken(context.Context, *ReleaseAdminTokenRequest) (*ReleaseAdminTokenResponse, error)
 	Ping(context.Context, *PingRequest) (*PingResponse, error)
+	RaftListClusterServers(context.Context, *RaftListClusterServersRequest) (*RaftListClusterServersResponse, error)
+	RaftAddServer(context.Context, *RaftAddServerRequest) (*RaftAddServerResponse, error)
+	RaftRemoveServer(context.Context, *RaftRemoveServerRequest) (*RaftRemoveServerResponse, error)
 	mustEmbedUnimplementedSeaweedServer()
 }
 
@@ -293,6 +325,15 @@ func (UnimplementedSeaweedServer) ReleaseAdminToken(context.Context, *ReleaseAdm
 func (UnimplementedSeaweedServer) Ping(context.Context, *PingRequest) (*PingResponse, error) {
 	return nil, status.Errorf(codes.Unimplemented, "method Ping not implemented")
 }
+func (UnimplementedSeaweedServer) RaftListClusterServers(context.Context, *RaftListClusterServersRequest) (*RaftListClusterServersResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method RaftListClusterServers not implemented")
+}
+func (UnimplementedSeaweedServer) RaftAddServer(context.Context, *RaftAddServerRequest) (*RaftAddServerResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method RaftAddServer not implemented")
+}
+func (UnimplementedSeaweedServer) RaftRemoveServer(context.Context, *RaftRemoveServerRequest) (*RaftRemoveServerResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method RaftRemoveServer not implemented")
+}
 func (UnimplementedSeaweedServer) mustEmbedUnimplementedSeaweedServer() {}
 
 // UnsafeSeaweedServer may be embedded to opt out of forward compatibility for this service.
@@ -592,6 +633,60 @@ func _Seaweed_Ping_Handler(srv interface{}, ctx context.Context, dec func(interf
 	return interceptor(ctx, in, info, handler)
 }
 
+func _Seaweed_RaftListClusterServers_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(RaftListClusterServersRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(SeaweedServer).RaftListClusterServers(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/master_pb.Seaweed/RaftListClusterServers",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(SeaweedServer).RaftListClusterServers(ctx, req.(*RaftListClusterServersRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _Seaweed_RaftAddServer_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(RaftAddServerRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(SeaweedServer).RaftAddServer(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/master_pb.Seaweed/RaftAddServer",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(SeaweedServer).RaftAddServer(ctx, req.(*RaftAddServerRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _Seaweed_RaftRemoveServer_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(RaftRemoveServerRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(SeaweedServer).RaftRemoveServer(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/master_pb.Seaweed/RaftRemoveServer",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(SeaweedServer).RaftRemoveServer(ctx, req.(*RaftRemoveServerRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
 // Seaweed_ServiceDesc is the grpc.ServiceDesc for Seaweed service.
 // It's only intended for direct use with grpc.RegisterService,
 // and not to be introspected or modified (even as a copy)
@@ -651,6 +746,18 @@ var Seaweed_ServiceDesc = grpc.ServiceDesc{
 			MethodName: "Ping",
 			Handler:    _Seaweed_Ping_Handler,
 		},
+		{
+			MethodName: "RaftListClusterServers",
+			Handler:    _Seaweed_RaftListClusterServers_Handler,
+		},
+		{
+			MethodName: "RaftAddServer",
+			Handler:    _Seaweed_RaftAddServer_Handler,
+		},
+		{
+			MethodName: "RaftRemoveServer",
+			Handler:    _Seaweed_RaftRemoveServer_Handler,
+		},
 	},
 	Streams: []grpc.StreamDesc{
 		{
diff --git a/weed/pb/messaging_pb/messaging.pb.go b/weed/pb/messaging_pb/messaging.pb.go
index 5b9ca1ee3..75a91a8ff 100644
--- a/weed/pb/messaging_pb/messaging.pb.go
+++ b/weed/pb/messaging_pb/messaging.pb.go
@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.26.0
-// 	protoc        v3.17.3
+// 	protoc-gen-go v1.28.0
+// 	protoc        v3.19.4
 // source: messaging.proto
 
 package messaging_pb
diff --git a/weed/pb/messaging_pb/messaging_grpc.pb.go b/weed/pb/messaging_pb/messaging_grpc.pb.go
index 234cffa95..681dd3053 100644
--- a/weed/pb/messaging_pb/messaging_grpc.pb.go
+++ b/weed/pb/messaging_pb/messaging_grpc.pb.go
@@ -11,7 +11,6 @@ import (
 
 // This is a compile-time assertion to ensure that this generated file
 // is compatible with the grpc package it is being compiled against.
-// Requires gRPC-Go v1.32.0 or later.
 const _ = grpc.SupportPackageIsVersion7
 
 // SeaweedMessagingClient is the client API for SeaweedMessaging service.
diff --git a/weed/pb/mount_pb/mount.pb.go b/weed/pb/mount_pb/mount.pb.go
index cbaf533fe..4cd3b5557 100644
--- a/weed/pb/mount_pb/mount.pb.go
+++ b/weed/pb/mount_pb/mount.pb.go
@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.26.0
-// 	protoc        v3.17.3
+// 	protoc-gen-go v1.28.0
+// 	protoc        v3.19.4
 // source: mount.proto
 
 package mount_pb
diff --git a/weed/pb/mount_pb/mount_grpc.pb.go b/weed/pb/mount_pb/mount_grpc.pb.go
index 41737aa21..0dba35218 100644
--- a/weed/pb/mount_pb/mount_grpc.pb.go
+++ b/weed/pb/mount_pb/mount_grpc.pb.go
@@ -11,7 +11,6 @@ import (
 
 // This is a compile-time assertion to ensure that this generated file
 // is compatible with the grpc package it is being compiled against.
-// Requires gRPC-Go v1.32.0 or later.
 const _ = grpc.SupportPackageIsVersion7
 
 // SeaweedMountClient is the client API for SeaweedMount service.
diff --git a/weed/pb/remote_pb/remote.pb.go b/weed/pb/remote_pb/remote.pb.go
index f746333ff..61ac6c0cc 100644
--- a/weed/pb/remote_pb/remote.pb.go
+++ b/weed/pb/remote_pb/remote.pb.go
@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.26.0
-// 	protoc        v3.17.3
+// 	protoc-gen-go v1.28.0
+// 	protoc        v3.19.4
 // source: remote.proto
 
 package remote_pb
diff --git a/weed/pb/volume_server_pb/volume_server.pb.go b/weed/pb/volume_server_pb/volume_server.pb.go
index b23f33943..6de640d71 100644
--- a/weed/pb/volume_server_pb/volume_server.pb.go
+++ b/weed/pb/volume_server_pb/volume_server.pb.go
@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.26.0
-// 	protoc        v3.17.3
+// 	protoc-gen-go v1.28.0
+// 	protoc        v3.19.4
 // source: volume_server.proto
 
 package volume_server_pb
diff --git a/weed/pb/volume_server_pb/volume_server_grpc.pb.go b/weed/pb/volume_server_pb/volume_server_grpc.pb.go
index e1b162457..4025c9b63 100644
--- a/weed/pb/volume_server_pb/volume_server_grpc.pb.go
+++ b/weed/pb/volume_server_pb/volume_server_grpc.pb.go
@@ -11,7 +11,6 @@ import (
 
 // This is a compile-time assertion to ensure that this generated file
 // is compatible with the grpc package it is being compiled against.
-// Requires gRPC-Go v1.32.0 or later.
 const _ = grpc.SupportPackageIsVersion7
 
 // VolumeServerClient is the client API for VolumeServer service.
diff --git a/weed/server/master_grpc_server_raft.go b/weed/server/master_grpc_server_raft.go
new file mode 100644
index 000000000..71ab6a1da
--- /dev/null
+++ b/weed/server/master_grpc_server_raft.go
@@ -0,0 +1,48 @@
+package weed_server
+
+import (
+	"context"
+	"github.com/chrislusf/seaweedfs/weed/pb/master_pb"
+	"github.com/hashicorp/raft"
+)
+
+func (ms *MasterServer) RaftListClusterServers(ctx context.Context, req *master_pb.RaftListClusterServersRequest) (*master_pb.RaftListClusterServersResponse, error) {
+	resp := &master_pb.RaftListClusterServersResponse{}
+
+	servers := ms.Topo.HashicorpRaft.GetConfiguration().Configuration().Servers
+
+	for _, server := range servers {
+		resp.ClusterServers = append(resp.ClusterServers, &master_pb.RaftListClusterServersResponse_ClusterServers{
+			Id:       string(server.ID),
+			Address:  string(server.Address),
+			Suffrage: server.Suffrage.String(),
+		})
+	}
+	return resp, nil
+}
+
+func (ms *MasterServer) RaftAddServer(ctx context.Context, req *master_pb.RaftAddServerRequest) (*master_pb.RaftAddServerResponse, error) {
+	resp := &master_pb.RaftAddServerResponse{}
+
+	var idxFuture raft.IndexFuture
+	if req.Voter {
+		idxFuture = ms.Topo.HashicorpRaft.AddVoter(raft.ServerID(req.Id), raft.ServerAddress(req.Address), 0, 0)
+	} else {
+		idxFuture = ms.Topo.HashicorpRaft.AddNonvoter(raft.ServerID(req.Id), raft.ServerAddress(req.Address), 0, 0)
+	}
+
+	if err := idxFuture.Error(); err != nil {
+		return nil, err
+	}
+	return resp, nil
+}
+
+func (ms *MasterServer) RaftRemoveServer(ctx context.Context, req *master_pb.RaftRemoveServerRequest) (*master_pb.RaftRemoveServerResponse, error) {
+	resp := &master_pb.RaftRemoveServerResponse{}
+
+	idxFuture := ms.Topo.HashicorpRaft.RemoveServer(raft.ServerID(req.Id), 0, 0)
+	if err := idxFuture.Error(); err != nil {
+		return nil, err
+	}
+	return resp, nil
+}
diff --git a/weed/shell/command_raft_cluster_ps.go b/weed/shell/command_raft_cluster_ps.go
new file mode 100644
index 000000000..6589e3629
--- /dev/null
+++ b/weed/shell/command_raft_cluster_ps.go
@@ -0,0 +1,51 @@
+package shell
+
+import (
+	"context"
+	"flag"
+	"fmt"
+	"github.com/chrislusf/seaweedfs/weed/pb/master_pb"
+	"io"
+)
+
+func init() {
+	Commands = append(Commands, &commandRaftClusterPs{})
+}
+
+type commandRaftClusterPs struct {
+}
+
+func (c *commandRaftClusterPs) Name() string {
+	return "raft.cluster.ps"
+}
+
+func (c *commandRaftClusterPs) Help() string {
+	return `check current raft cluster status
+
+	raft.cluster.ps
+`
+}
+
+func (c *commandRaftClusterPs) Do(args []string, commandEnv *CommandEnv, writer io.Writer) (err error) {
+
+	raftClusterPsCommand := flag.NewFlagSet(c.Name(), flag.ContinueOnError)
+	if err = raftClusterPsCommand.Parse(args); err != nil {
+		return nil
+	}
+
+	err = commandEnv.MasterClient.WithClient(false, func(client master_pb.SeaweedClient) error {
+		resp, err := client.RaftListClusterServers(context.Background(), &master_pb.RaftListClusterServersRequest{})
+		if err != nil {
+			return fmt.Errorf("raft list cluster: %v", err)
+		}
+		fmt.Fprintf(writer, "the raft cluster has %d servers\n", len(resp.ClusterServers))
+		for _, server := range resp.ClusterServers {
+			fmt.Fprintf(writer, "  * %s %s (%s)\n", server.Id, server.Address, server.Suffrage)
+		}
+
+		return nil
+	})
+
+	return err
+
+}
diff --git a/weed/shell/command_raft_server_add.go b/weed/shell/command_raft_server_add.go
new file mode 100644
index 000000000..843882810
--- /dev/null
+++ b/weed/shell/command_raft_server_add.go
@@ -0,0 +1,59 @@
+package shell
+
+import (
+	"context"
+	"flag"
+	"fmt"
+	"github.com/chrislusf/seaweedfs/weed/pb/master_pb"
+	"io"
+)
+
+func init() {
+	Commands = append(Commands, &commandRaftServerAdd{})
+}
+
+type commandRaftServerAdd struct {
+}
+
+func (c *commandRaftServerAdd) Name() string {
+	return "raft.server.add"
+}
+
+func (c *commandRaftServerAdd) Help() string {
+	return `add a server to the raft cluster
+
+	Example:
+		raft.server.add -id <server_name> -address <server_host:port> -voter
+`
+}
+
+func (c *commandRaftServerAdd) Do(args []string, commandEnv *CommandEnv, writer io.Writer) (err error) {
+
+	raftServerAddCommand := flag.NewFlagSet(c.Name(), flag.ContinueOnError)
+	serverId := raftServerAddCommand.String("id", "", "server id")
+	serverAddress := raftServerAddCommand.String("address", "", "server grpc address")
+	serverVoter := raftServerAddCommand.Bool("voter", true, "assign it a vote")
+	if err = raftServerAddCommand.Parse(args); err != nil {
+		return nil
+	}
+
+	if *serverId == "" || *serverAddress == "" {
+		return fmt.Errorf("empty server id or address")
+	}
+
+	err = commandEnv.MasterClient.WithClient(false, func(client master_pb.SeaweedClient) error {
+		_, err := client.RaftAddServer(context.Background(), &master_pb.RaftAddServerRequest{
+			Id:      *serverId,
+			Address: *serverAddress,
+			Voter:   *serverVoter,
+		})
+		if err != nil {
+			return fmt.Errorf("raft add server: %v", err)
+		}
+		println("added server", *serverId)
+		return nil
+	})
+
+	return err
+
+}
diff --git a/weed/shell/command_raft_server_remove.go b/weed/shell/command_raft_server_remove.go
new file mode 100644
index 000000000..3bb83ac43
--- /dev/null
+++ b/weed/shell/command_raft_server_remove.go
@@ -0,0 +1,55 @@
+package shell
+
+import (
+	"context"
+	"flag"
+	"fmt"
+	"github.com/chrislusf/seaweedfs/weed/pb/master_pb"
+	"io"
+)
+
+func init() {
+	Commands = append(Commands, &commandRaftServerRemove{})
+}
+
+type commandRaftServerRemove struct {
+}
+
+func (c *commandRaftServerRemove) Name() string {
+	return "raft.server.remove"
+}
+
+func (c *commandRaftServerRemove) Help() string {
+	return `remove a server from the raft cluster
+
+	Example:
+		raft.server.remove -id <server_name>
+`
+}
+
+func (c *commandRaftServerRemove) Do(args []string, commandEnv *CommandEnv, writer io.Writer) (err error) {
+
+	raftServerAddCommand := flag.NewFlagSet(c.Name(), flag.ContinueOnError)
+	serverId := raftServerAddCommand.String("id", "", "server id")
+	if err = raftServerAddCommand.Parse(args); err != nil {
+		return nil
+	}
+
+	if *serverId == "" {
+		return fmt.Errorf("empty server id")
+	}
+
+	err = commandEnv.MasterClient.WithClient(false, func(client master_pb.SeaweedClient) error {
+		_, err := client.RaftRemoveServer(context.Background(), &master_pb.RaftRemoveServerRequest{
+			Id: *serverId,
+		})
+		if err != nil {
+			return fmt.Errorf("raft remove server: %v", err)
+		}
+		println("removed server", *serverId)
+		return nil
+	})
+
+	return err
+
+}