diff --git a/weed/command/benchmark.go b/weed/command/benchmark.go
index 6f156d6ed..6846dc98d 100644
--- a/weed/command/benchmark.go
+++ b/weed/command/benchmark.go
@@ -127,7 +127,7 @@ func runBenchmark(cmd *Command, args []string) bool {
 		defer pprof.StopCPUProfile()
 	}
 
-	b.masterClient = wdclient.NewMasterClient(b.grpcDialOption, "client", 0, strings.Split(*b.masters, ","))
+	b.masterClient = wdclient.NewMasterClient(b.grpcDialOption, "client", "", 0, strings.Split(*b.masters, ","))
 	go b.masterClient.KeepConnectedToMaster()
 	b.masterClient.WaitUntilConnected()
 
diff --git a/weed/command/filer.go b/weed/command/filer.go
index fb1ee2b0f..ce6d79a17 100644
--- a/weed/command/filer.go
+++ b/weed/command/filer.go
@@ -43,7 +43,7 @@ func init() {
 	cmdFiler.Run = runFiler // break init cycle
 	f.masters = cmdFiler.Flag.String("master", "localhost:9333", "comma-separated master servers")
 	f.collection = cmdFiler.Flag.String("collection", "", "all data will be stored in this collection")
-	f.ip = cmdFiler.Flag.String("ip", "", "filer server http listen ip address")
+	f.ip = cmdFiler.Flag.String("ip", util.DetectedHostAddress(), "filer server http listen ip address")
 	f.port = cmdFiler.Flag.Int("port", 8888, "filer server http listen port")
 	f.publicPort = cmdFiler.Flag.Int("port.readonly", 0, "readonly port opened to public")
 	f.defaultReplicaPlacement = cmdFiler.Flag.String("defaultReplicaPlacement", "000", "default replication type if not specified")
@@ -109,6 +109,7 @@ func (fo *FilerOptions) startFiler() {
 		DataCenter:         *fo.dataCenter,
 		DefaultLevelDbDir:  defaultLevelDbDirectory,
 		DisableHttp:        *fo.disableHttp,
+		Host:               *fo.ip,
 		Port:               uint32(*fo.port),
 		Cipher:             *fo.cipher,
 	})
diff --git a/weed/command/master.go b/weed/command/master.go
index 6171f8e83..d4b8a67ff 100644
--- a/weed/command/master.go
+++ b/weed/command/master.go
@@ -172,6 +172,7 @@ func checkPeers(masterIp string, masterPort int, peers string) (masterAddress st
 
 func (m *MasterOptions) toMasterOption(whiteList []string) *weed_server.MasterOption {
 	return &weed_server.MasterOption{
+		Host:                    *m.ip,
 		Port:                    *m.port,
 		MetaFolder:              *m.metaFolder,
 		VolumeSizeLimitMB:       *m.volumeSizeLimitMB,
diff --git a/weed/command/server.go b/weed/command/server.go
index 8e0d41277..2f3bbe94d 100644
--- a/weed/command/server.go
+++ b/weed/command/server.go
@@ -45,7 +45,7 @@ var cmdServer = &Command{
 }
 
 var (
-	serverIp                  = cmdServer.Flag.String("ip", "localhost", "ip or server name")
+	serverIp                  = cmdServer.Flag.String("ip", util.DetectedHostAddress(), "ip or server name")
 	serverBindIp              = cmdServer.Flag.String("ip.bind", "0.0.0.0", "ip address to bind to")
 	serverTimeout             = cmdServer.Flag.Int("idleTimeout", 30, "connection idle seconds")
 	serverDataCenter          = cmdServer.Flag.String("dataCenter", "", "current volume server's data center name")
diff --git a/weed/filer2/filer.go b/weed/filer2/filer.go
index acd609847..07eb994e8 100644
--- a/weed/filer2/filer.go
+++ b/weed/filer2/filer.go
@@ -40,10 +40,10 @@ type Filer struct {
 	metaLogReplication  string
 }
 
-func NewFiler(masters []string, grpcDialOption grpc.DialOption, filerGrpcPort uint32, collection string, replication string, notifyFn func()) *Filer {
+func NewFiler(masters []string, grpcDialOption grpc.DialOption, filerHost string, filerGrpcPort uint32, collection string, replication string, notifyFn func()) *Filer {
 	f := &Filer{
 		directoryCache:      ccache.New(ccache.Configure().MaxSize(1000).ItemsToPrune(100)),
-		MasterClient:        wdclient.NewMasterClient(grpcDialOption, "filer", filerGrpcPort, masters),
+		MasterClient:        wdclient.NewMasterClient(grpcDialOption, "filer", filerHost, filerGrpcPort, masters),
 		fileIdDeletionQueue: util.NewUnboundedQueue(),
 		GrpcDialOption:      grpcDialOption,
 	}
diff --git a/weed/messaging/broker/broker_grpc_server_publish.go b/weed/messaging/broker/broker_grpc_server_publish.go
index 20e6eb04b..6208b1435 100644
--- a/weed/messaging/broker/broker_grpc_server_publish.go
+++ b/weed/messaging/broker/broker_grpc_server_publish.go
@@ -27,6 +27,19 @@ func (broker *MessageBroker) Publish(stream messaging_pb.SeaweedMessaging_Publis
 	topicConfig := &messaging_pb.TopicConfiguration{
 
 	}
+	
+	// send init response
+	initResponse := &messaging_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{
@@ -87,6 +100,8 @@ func (broker *MessageBroker) Publish(stream messaging_pb.SeaweedMessaging_Publis
 			Headers:   in.Data.Headers,
 		}
 
+		println("received message:", string(in.Data.Value))
+
 		data, err := proto.Marshal(m)
 		if err != nil {
 			glog.Errorf("marshall error: %v\n", err)
diff --git a/weed/messaging/broker/broker_server.go b/weed/messaging/broker/broker_server.go
index 0522eb4b7..158a84e6c 100644
--- a/weed/messaging/broker/broker_server.go
+++ b/weed/messaging/broker/broker_server.go
@@ -2,11 +2,11 @@ package broker
 
 import (
 	"context"
-	"fmt"
 	"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"
@@ -34,7 +34,9 @@ func NewMessageBroker(option *MessageBrokerOption, grpcDialOption grpc.DialOptio
 		topicLocks:     NewTopicLocks(),
 	}
 
-	go messageBroker.loopForEver()
+	messageBroker.checkPeers()
+
+	// go messageBroker.loopForEver()
 
 	return messageBroker, nil
 }
@@ -52,58 +54,55 @@ func (broker *MessageBroker) checkPeers() {
 
 	// contact a filer about masters
 	var masters []string
-	for _, filer := range broker.option.Filers {
-		err := broker.withFilerClient(filer, func(client filer_pb.SeaweedFilerClient) error {
-			resp, err := client.GetFilerConfiguration(context.Background(), &filer_pb.GetFilerConfigurationRequest{})
-			if err != nil {
-				return err
+	found := false
+	for !found {
+		for _, filer := range broker.option.Filers {
+			err := broker.withFilerClient(filer, func(client filer_pb.SeaweedFilerClient) error {
+				resp, err := client.GetFilerConfiguration(context.Background(), &filer_pb.GetFilerConfigurationRequest{})
+				if err != nil {
+					return err
+				}
+				masters = append(masters, resp.Masters...)
+				return nil
+			})
+			if err == nil {
+				found = true
+				break
 			}
-			masters = append(masters, resp.Masters...)
-			return nil
-		})
-		if err != nil {
-			fmt.Printf("failed to read masters from %+v: %v\n", broker.option.Filers, err)
-			return
+			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 []string
-	for _, master := range masters {
-		err := broker.withMasterClient(master, func(client master_pb.SeaweedClient) error {
-			resp, err := client.ListMasterClients(context.Background(), &master_pb.ListMasterClientsRequest{
-				ClientType: "filer",
+	found = false
+	for !found {
+		for _, master := range masters {
+			err := broker.withMasterClient(master, func(client master_pb.SeaweedClient) error {
+				resp, err := client.ListMasterClients(context.Background(), &master_pb.ListMasterClientsRequest{
+					ClientType: "filer",
+				})
+				if err != nil {
+					return err
+				}
+
+				filers = append(filers, resp.GrpcAddresses...)
+
+				return nil
 			})
-			if err != nil {
-				return err
+			if err == nil {
+				found = true
+				break
 			}
-
-			fmt.Printf("filers: %+v\n", resp.GrpcAddresses)
-			filers = append(filers, resp.GrpcAddresses...)
-
-			return nil
-		})
-		if err != nil {
-			fmt.Printf("failed to list filers: %v\n", err)
-			return
+			glog.V(0).Infof("failed to list filers: %v", err)
+			time.Sleep(time.Second)
 		}
 	}
+	glog.V(0).Infof("received filer list: %s", filers)
 
-	// contact each filer about brokers
-	for _, filer := range filers {
-		err := broker.withFilerClient(filer, func(client filer_pb.SeaweedFilerClient) error {
-			resp, err := client.GetFilerConfiguration(context.Background(), &filer_pb.GetFilerConfigurationRequest{})
-			if err != nil {
-				return err
-			}
-			masters = append(masters, resp.Masters...)
-			return nil
-		})
-		if err != nil {
-			fmt.Printf("failed to read masters from %+v: %v\n", broker.option.Filers, err)
-			return
-		}
-	}
+	broker.option.Filers = filers
 
 }
 
diff --git a/weed/messaging/client/client.go b/weed/messaging/client/client.go
index 9bf9bc71e..3f6d1ca53 100644
--- a/weed/messaging/client/client.go
+++ b/weed/messaging/client/client.go
@@ -1,11 +1,34 @@
 package client
 
+import (
+	"context"
+
+	"google.golang.org/grpc"
+
+	"github.com/chrislusf/seaweedfs/weed/pb"
+	"github.com/chrislusf/seaweedfs/weed/security"
+	"github.com/chrislusf/seaweedfs/weed/util"
+)
+
 type MessagingClient struct {
 	bootstrapBrokers []string
+	grpcConnection   *grpc.ClientConn
 }
 
-func NewMessagingClient(bootstrapBrokers []string) *MessagingClient {
+func NewMessagingClient(bootstrapBrokers []string) (*MessagingClient, error) {
+	grpcDialOption := security.LoadClientTLS(util.GetViper(), "grpc.msg_client")
+
+	grpcConnection, err := pb.GrpcDial(context.Background(), "localhost:17777", grpcDialOption)
+	if err != nil {
+		return nil, err
+	}
+
 	return &MessagingClient{
 		bootstrapBrokers: bootstrapBrokers,
-	}
+		grpcConnection:   grpcConnection,
+	}, nil
+}
+
+func (mc *MessagingClient) Shutdown() {
+	mc.grpcConnection.Close()
 }
diff --git a/weed/messaging/client/publisher.go b/weed/messaging/client/publisher.go
index 3e21cc557..d4c0f798a 100644
--- a/weed/messaging/client/publisher.go
+++ b/weed/messaging/client/publisher.go
@@ -1,14 +1,76 @@
 package client
 
-import "github.com/chrislusf/seaweedfs/weed/pb/messaging_pb"
+import (
+	"context"
+
+	"github.com/chrislusf/seaweedfs/weed/pb/messaging_pb"
+)
 
 type Publisher struct {
+	publishClient messaging_pb.SeaweedMessaging_PublishClient
 }
 
-func (c *MessagingClient) NewPublisher(namespace, topic string) *Publisher {
-	return &Publisher{}
+func (mc *MessagingClient) NewPublisher(namespace, topic string) (*Publisher, error) {
+
+	stream, err := messaging_pb.NewSeaweedMessagingClient(mc.grpcConnection).Publish(context.Background())
+	if err != nil {
+		return nil, err
+	}
+
+	// send init message
+	err = stream.Send(&messaging_pb.PublishRequest{
+		Init: &messaging_pb.PublishRequest_InitMessage{
+			Namespace: namespace,
+			Topic:     topic,
+			Partition: 0,
+		},
+	})
+	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 &Publisher{
+		publishClient: stream,
+	}, nil
 }
 
-func (p *Publisher) Publish(m *messaging_pb.RawData) error{
-	return nil
+func (p *Publisher) Publish(m *messaging_pb.RawData) error {
+
+	return p.publishClient.Send(&messaging_pb.PublishRequest{
+		Data: m,
+	})
+
+}
+
+func (p *Publisher) Shutdown() {
+
+	p.publishClient.CloseSend()
+
 }
diff --git a/weed/pb/grpc_client_server.go b/weed/pb/grpc_client_server.go
index 8960a333c..8418397b0 100644
--- a/weed/pb/grpc_client_server.go
+++ b/weed/pb/grpc_client_server.go
@@ -14,6 +14,7 @@ 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"
 )
 
 const (
@@ -158,6 +159,15 @@ func WithMasterClient(master string, grpcDialOption grpc.DialOption, fn func(cli
 
 }
 
+func WithBrokerGrpcClient(brokerGrpcAddress string, grpcDialOption grpc.DialOption, fn func(client messaging_pb.SeaweedMessagingClient) error) error {
+
+	return WithCachedGrpcClient(func(grpcConnection *grpc.ClientConn) error {
+		client := messaging_pb.NewSeaweedMessagingClient(grpcConnection)
+		return fn(client)
+	}, brokerGrpcAddress, grpcDialOption)
+
+}
+
 func WithFilerClient(filer string, grpcDialOption grpc.DialOption, fn func(client filer_pb.SeaweedFilerClient) error) error {
 
 	filerGrpcAddress, parseErr := ParseServerToGrpcAddress(filer)
diff --git a/weed/pb/messaging.proto b/weed/pb/messaging.proto
index 1075af257..657342681 100644
--- a/weed/pb/messaging.proto
+++ b/weed/pb/messaging.proto
@@ -74,11 +74,6 @@ message PublishRequest {
         int32 partition = 3;
     }
     InitMessage init = 1;
-    message RawData {
-        bytes key = 1; // Message key
-        bytes value = 2; // Message payload
-        map<string, bytes> headers = 3; // Message headers
-    }
     RawData data = 2;
 }
 
diff --git a/weed/pb/messaging_pb/messaging.pb.go b/weed/pb/messaging_pb/messaging.pb.go
index 0e64a40fa..93eec7081 100644
--- a/weed/pb/messaging_pb/messaging.pb.go
+++ b/weed/pb/messaging_pb/messaging.pb.go
@@ -283,7 +283,7 @@ func (m *BrokerMessage_RedirectMessage) GetNewBroker() string {
 
 type PublishRequest struct {
 	Init *PublishRequest_InitMessage `protobuf:"bytes,1,opt,name=init" json:"init,omitempty"`
-	Data *PublishRequest_RawData     `protobuf:"bytes,2,opt,name=data" json:"data,omitempty"`
+	Data *RawData                    `protobuf:"bytes,2,opt,name=data" json:"data,omitempty"`
 }
 
 func (m *PublishRequest) Reset()                    { *m = PublishRequest{} }
@@ -298,7 +298,7 @@ func (m *PublishRequest) GetInit() *PublishRequest_InitMessage {
 	return nil
 }
 
-func (m *PublishRequest) GetData() *PublishRequest_RawData {
+func (m *PublishRequest) GetData() *RawData {
 	if m != nil {
 		return m.Data
 	}
@@ -337,38 +337,6 @@ func (m *PublishRequest_InitMessage) GetPartition() int32 {
 	return 0
 }
 
-type PublishRequest_RawData struct {
-	Key     []byte            `protobuf:"bytes,1,opt,name=key,proto3" json:"key,omitempty"`
-	Value   []byte            `protobuf:"bytes,2,opt,name=value,proto3" json:"value,omitempty"`
-	Headers map[string][]byte `protobuf:"bytes,3,rep,name=headers" json:"headers,omitempty" protobuf_key:"bytes,1,opt,name=key" protobuf_val:"bytes,2,opt,name=value,proto3"`
-}
-
-func (m *PublishRequest_RawData) Reset()                    { *m = PublishRequest_RawData{} }
-func (m *PublishRequest_RawData) String() string            { return proto.CompactTextString(m) }
-func (*PublishRequest_RawData) ProtoMessage()               {}
-func (*PublishRequest_RawData) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{4, 1} }
-
-func (m *PublishRequest_RawData) GetKey() []byte {
-	if m != nil {
-		return m.Key
-	}
-	return nil
-}
-
-func (m *PublishRequest_RawData) GetValue() []byte {
-	if m != nil {
-		return m.Value
-	}
-	return nil
-}
-
-func (m *PublishRequest_RawData) GetHeaders() map[string][]byte {
-	if m != nil {
-		return m.Headers
-	}
-	return nil
-}
-
 type PublishResponse struct {
 	Config   *PublishResponse_ConfigMessage   `protobuf:"bytes,1,opt,name=config" json:"config,omitempty"`
 	Redirect *PublishResponse_RedirectMessage `protobuf:"bytes,2,opt,name=redirect" json:"redirect,omitempty"`
@@ -551,7 +519,6 @@ func init() {
 	proto.RegisterType((*BrokerMessage_RedirectMessage)(nil), "messaging_pb.BrokerMessage.RedirectMessage")
 	proto.RegisterType((*PublishRequest)(nil), "messaging_pb.PublishRequest")
 	proto.RegisterType((*PublishRequest_InitMessage)(nil), "messaging_pb.PublishRequest.InitMessage")
-	proto.RegisterType((*PublishRequest_RawData)(nil), "messaging_pb.PublishRequest.RawData")
 	proto.RegisterType((*PublishResponse)(nil), "messaging_pb.PublishResponse")
 	proto.RegisterType((*PublishResponse_ConfigMessage)(nil), "messaging_pb.PublishResponse.ConfigMessage")
 	proto.RegisterType((*PublishResponse_RedirectMessage)(nil), "messaging_pb.PublishResponse.RedirectMessage")
@@ -802,58 +769,57 @@ var _SeaweedMessaging_serviceDesc = grpc.ServiceDesc{
 func init() { proto.RegisterFile("messaging.proto", fileDescriptor0) }
 
 var fileDescriptor0 = []byte{
-	// 847 bytes of a gzipped FileDescriptorProto
-	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x09, 0x6e, 0x88, 0x02, 0xff, 0xb4, 0x56, 0xcd, 0x8e, 0xe3, 0x44,
-	0x10, 0xde, 0x8e, 0x33, 0x93, 0x75, 0xe5, 0x97, 0x16, 0x83, 0x22, 0x33, 0x03, 0x96, 0x77, 0x25,
-	0x02, 0x23, 0xac, 0x21, 0x5c, 0xc2, 0x6a, 0x25, 0x94, 0x84, 0xb0, 0x44, 0x4c, 0x20, 0xea, 0xe4,
-	0x8a, 0xa2, 0x8e, 0xd3, 0x9b, 0xb5, 0x92, 0xd8, 0xc6, 0xdd, 0x21, 0xda, 0x13, 0x07, 0xb8, 0x72,
-	0xe2, 0x1d, 0xb8, 0x70, 0xe6, 0xc2, 0x8d, 0x07, 0xe0, 0x9d, 0x90, 0x7f, 0x63, 0x27, 0x1e, 0xef,
-	0x10, 0xed, 0xdc, 0xec, 0x72, 0xd5, 0x57, 0xf5, 0x55, 0x7d, 0xd5, 0x6e, 0xa8, 0x6f, 0x18, 0xe7,
-	0x74, 0x69, 0x5a, 0x4b, 0xdd, 0x71, 0x6d, 0x61, 0xe3, 0x4a, 0x6c, 0x98, 0x39, 0x73, 0xed, 0x97,
-	0x22, 0xbc, 0x33, 0xd9, 0xce, 0xb9, 0xe1, 0x9a, 0x73, 0xe6, 0x8e, 0xfc, 0x4f, 0x0c, 0x7f, 0x09,
-	0x45, 0xd3, 0x32, 0x45, 0x13, 0xa9, 0xa8, 0x55, 0x6e, 0x5f, 0xeb, 0xc9, 0x10, 0xfd, 0xc8, 0x5d,
-	0x1f, 0x5a, 0xa6, 0x08, 0x9f, 0x89, 0x1f, 0x88, 0x9f, 0x83, 0x44, 0x8d, 0x55, 0xb3, 0xe0, 0xc7,
-	0x7f, 0xf2, 0xa6, 0xf8, 0xae, 0xb1, 0x8a, 0xc2, 0xbd, 0x30, 0xe5, 0x9f, 0x02, 0x94, 0x13, 0x98,
-	0xf8, 0x12, 0x64, 0x8b, 0x6e, 0x18, 0x77, 0xa8, 0xc1, 0xfc, 0x9a, 0x64, 0xb2, 0x37, 0xe0, 0x77,
-	0xe1, 0x4c, 0xd8, 0x8e, 0x69, 0xf8, 0xd9, 0x64, 0x12, 0xbc, 0x78, 0x31, 0x0e, 0x75, 0x85, 0x29,
-	0x4c, 0xdb, 0x6a, 0x4a, 0x2a, 0x6a, 0x9d, 0x91, 0xbd, 0x01, 0xcf, 0xa0, 0xca, 0x05, 0x75, 0xc5,
-	0xd8, 0xe6, 0x81, 0x47, 0x51, 0x45, 0xad, 0x5a, 0xfb, 0x8b, 0xff, 0xc1, 0x54, 0x9f, 0x24, 0x01,
-	0x48, 0x1a, 0x0f, 0xab, 0x50, 0x16, 0xe6, 0x86, 0x71, 0x41, 0x37, 0xce, 0x77, 0xbc, 0x79, 0xa6,
-	0xa2, 0x96, 0x44, 0x92, 0x26, 0xfc, 0x04, 0xaa, 0x3c, 0xc6, 0x9f, 0x99, 0x8b, 0xe6, 0xb9, 0x5f,
-	0x7e, 0x65, 0x6f, 0x1c, 0x2e, 0xb4, 0x0e, 0x54, 0x53, 0x69, 0x30, 0xc0, 0xf9, 0x6d, 0x77, 0x3a,
-	0x98, 0x4c, 0x1b, 0x8f, 0x70, 0x05, 0x1e, 0x0f, 0xba, 0xe4, 0x76, 0xe8, 0xbd, 0x21, 0x5c, 0x05,
-	0x79, 0x3a, 0x1c, 0x0d, 0x26, 0xd3, 0xee, 0x68, 0xdc, 0x28, 0x28, 0xd7, 0x00, 0xfb, 0xb6, 0xe2,
-	0x2b, 0x80, 0x80, 0x19, 0xf3, 0x32, 0x21, 0xbf, 0x1a, 0x39, 0xb4, 0x0c, 0x17, 0xda, 0x9f, 0x08,
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+	// 826 bytes of a gzipped FileDescriptorProto
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 }
diff --git a/weed/server/filer_server.go b/weed/server/filer_server.go
index 96a5545f4..ca62f55e9 100644
--- a/weed/server/filer_server.go
+++ b/weed/server/filer_server.go
@@ -45,6 +45,7 @@ type FilerOption struct {
 	DataCenter         string
 	DefaultLevelDbDir  string
 	DisableHttp        bool
+	Host               string
 	Port               uint32
 	recursiveDelete    bool
 	Cipher             bool
@@ -73,7 +74,7 @@ func NewFilerServer(defaultMux, readonlyMux *http.ServeMux, option *FilerOption)
 		glog.Fatal("master list is required!")
 	}
 
-	fs.filer = filer2.NewFiler(option.Masters, fs.grpcDialOption, option.Port+10000, option.Collection, option.DefaultReplication, fs.notifyMetaListeners)
+	fs.filer = filer2.NewFiler(option.Masters, fs.grpcDialOption, option.Host, option.Port, option.Collection, option.DefaultReplication, fs.notifyMetaListeners)
 	fs.filer.Cipher = option.Cipher
 
 	maybeStartMetrics(fs, option)
diff --git a/weed/server/master_server.go b/weed/server/master_server.go
index d089370db..152685886 100644
--- a/weed/server/master_server.go
+++ b/weed/server/master_server.go
@@ -32,6 +32,7 @@ const (
 )
 
 type MasterOption struct {
+	Host                    string
 	Port                    int
 	MetaFolder              string
 	VolumeSizeLimitMB       uint
@@ -93,7 +94,7 @@ func NewMasterServer(r *mux.Router, option *MasterOption, peers []string) *Maste
 		preallocateSize: preallocateSize,
 		clientChans:     make(map[string]chan *master_pb.VolumeLocation),
 		grpcDialOption:  grpcDialOption,
-		MasterClient:    wdclient.NewMasterClient(grpcDialOption, "master", 0, peers),
+		MasterClient:    wdclient.NewMasterClient(grpcDialOption, "master", option.Host, 0, peers),
 	}
 	ms.bounedLeaderChan = make(chan int, 16)
 
diff --git a/weed/shell/commands.go b/weed/shell/commands.go
index cbae6c03e..96343971a 100644
--- a/weed/shell/commands.go
+++ b/weed/shell/commands.go
@@ -43,7 +43,7 @@ var (
 func NewCommandEnv(options ShellOptions) *CommandEnv {
 	return &CommandEnv{
 		env:          make(map[string]string),
-		MasterClient: wdclient.NewMasterClient(options.GrpcDialOption, pb.AdminShellClient, 0, strings.Split(*options.Masters, ",")),
+		MasterClient: wdclient.NewMasterClient(options.GrpcDialOption, pb.AdminShellClient, "", 0, strings.Split(*options.Masters, ",")),
 		option:       options,
 	}
 }
diff --git a/weed/wdclient/masterclient.go b/weed/wdclient/masterclient.go
index 67e4509b9..f73853c78 100644
--- a/weed/wdclient/masterclient.go
+++ b/weed/wdclient/masterclient.go
@@ -14,6 +14,7 @@ import (
 
 type MasterClient struct {
 	clientType     string
+	clientHost     string
 	grpcPort       uint32
 	currentMaster  string
 	masters        []string
@@ -22,9 +23,10 @@ type MasterClient struct {
 	vidMap
 }
 
-func NewMasterClient(grpcDialOption grpc.DialOption, clientType string, clientGrpcPort uint32, masters []string) *MasterClient {
+func NewMasterClient(grpcDialOption grpc.DialOption, clientType string, clientHost string, clientGrpcPort uint32, masters []string) *MasterClient {
 	return &MasterClient{
 		clientType:     clientType,
+		clientHost:     clientHost,
 		grpcPort:       clientGrpcPort,
 		masters:        masters,
 		grpcDialOption: grpcDialOption,