volume servers get metrics address and interval from the master

11 files changed, 192 insertions, 157 deletions

diff --git a/weed/command/master.go b/weed/command/master.go
index bda8493ed..d7c0356d3 100644
--- a/weed/command/master.go
+++ b/weed/command/master.go
@@ -45,12 +45,14 @@ var (
 	mpulse                  = cmdMaster.Flag.Int("pulseSeconds", 5, "number of seconds between heartbeats")
 	defaultReplicaPlacement = cmdMaster.Flag.String("defaultReplication", "000", "Default replication type if not specified.")
 	// mTimeout                = cmdMaster.Flag.Int("idleTimeout", 30, "connection idle seconds")
-	mMaxCpu               = cmdMaster.Flag.Int("maxCpu", 0, "maximum number of CPUs. 0 means all available CPUs")
-	garbageThreshold      = cmdMaster.Flag.Float64("garbageThreshold", 0.3, "threshold to vacuum and reclaim spaces")
-	masterWhiteListOption = cmdMaster.Flag.String("whiteList", "", "comma separated Ip addresses having write permission. No limit if empty.")
-	disableHttp           = cmdMaster.Flag.Bool("disableHttp", false, "disable http requests, only gRPC operations are allowed.")
-	masterCpuProfile      = cmdMaster.Flag.String("cpuprofile", "", "cpu profile output file")
-	masterMemProfile      = cmdMaster.Flag.String("memprofile", "", "memory profile output file")
+	mMaxCpu                  = cmdMaster.Flag.Int("maxCpu", 0, "maximum number of CPUs. 0 means all available CPUs")
+	garbageThreshold         = cmdMaster.Flag.Float64("garbageThreshold", 0.3, "threshold to vacuum and reclaim spaces")
+	masterWhiteListOption    = cmdMaster.Flag.String("whiteList", "", "comma separated Ip addresses having write permission. No limit if empty.")
+	disableHttp              = cmdMaster.Flag.Bool("disableHttp", false, "disable http requests, only gRPC operations are allowed.")
+	masterCpuProfile         = cmdMaster.Flag.String("cpuprofile", "", "cpu profile output file")
+	masterMemProfile         = cmdMaster.Flag.String("memprofile", "", "memory profile output file")
+	masterMetricsAddress     = cmdMaster.Flag.String("metrics.address", "", "Prometheus gateway address")
+	masterMetricsIntervalSec = cmdMaster.Flag.Int("metrics.intervalSeconds", 15, "Prometheus push interval in seconds")
 
 	masterWhiteList []string
 )
@@ -82,6 +84,7 @@ func runMaster(cmd *Command, args []string) bool {
 		*mpulse, *defaultReplicaPlacement, *garbageThreshold,
 		masterWhiteList,
 		*disableHttp,
+		*masterMetricsAddress, *masterMetricsIntervalSec,
 	)
 
 	listeningAddress := *masterBindIp + ":" + strconv.Itoa(*mport)
diff --git a/weed/command/server.go b/weed/command/server.go
index f6c2b5036..3799bedeb 100644
--- a/weed/command/server.go
+++ b/weed/command/server.go
@@ -24,10 +24,8 @@ import (
 )
 
 type ServerOptions struct {
-	cpuprofile         *string
-	metricsAddress     *string
-	metricsIntervalSec *int
-	v                  VolumeServerOptions
+	cpuprofile *string
+	v          VolumeServerOptions
 }
 
 var (
@@ -67,6 +65,8 @@ var (
 	serverDisableHttp             = cmdServer.Flag.Bool("disableHttp", false, "disable http requests, only gRPC operations are allowed.")
 	serverPeers                   = cmdServer.Flag.String("master.peers", "", "all master nodes in comma separated ip:masterPort list")
 	serverGarbageThreshold        = cmdServer.Flag.Float64("garbageThreshold", 0.3, "threshold to vacuum and reclaim spaces")
+	serverMetricsAddress          = cmdServer.Flag.String("metrics.address", "", "Prometheus gateway address")
+	serverMetricsIntervalSec      = cmdServer.Flag.Int("metrics.intervalSeconds", 15, "Prometheus push interval in seconds")
 	masterPort                    = cmdServer.Flag.Int("master.port", 9333, "master server http listen port")
 	masterMetaFolder              = cmdServer.Flag.String("master.dir", "", "data directory to store meta data, default to same as -dir specified")
 	masterVolumeSizeLimitMB       = cmdServer.Flag.Uint("master.volumeSizeLimitMB", 30*1000, "Master stops directing writes to oversized volumes.")
@@ -83,8 +83,6 @@ var (
 
 func init() {
 	serverOptions.cpuprofile = cmdServer.Flag.String("cpuprofile", "", "cpu profile output file")
-	serverOptions.metricsAddress = cmdServer.Flag.String("metrics.address", "", "Prometheus gateway address")
-	serverOptions.metricsIntervalSec = cmdServer.Flag.Int("metrics.intervalSeconds", 15, "Prometheus push interval in seconds")
 	filerOptions.collection = cmdServer.Flag.String("filer.collection", "", "all data will be stored in this collection")
 	filerOptions.port = cmdServer.Flag.Int("filer.port", 8888, "filer server http listen port")
 	filerOptions.publicPort = cmdServer.Flag.Int("filer.port.public", 0, "filer server public http listen port")
@@ -147,10 +145,8 @@ func runServer(cmd *Command, args []string) bool {
 	filerOptions.dataCenter = serverDataCenter
 	filerOptions.disableHttp = serverDisableHttp
 
-	filerOptions.metricsAddress = serverOptions.metricsAddress
-	filerOptions.metricsIntervalSec = serverOptions.metricsIntervalSec
-	serverOptions.v.metricsAddress = serverOptions.metricsAddress
-	serverOptions.v.metricsIntervalSec = serverOptions.metricsIntervalSec
+	filerOptions.metricsAddress = serverMetricsAddress
+	filerOptions.metricsIntervalSec = serverMetricsIntervalSec
 
 	filerAddress := fmt.Sprintf("%s:%d", *serverIp, *filerOptions.port)
 	s3Options.filer = &filerAddress
@@ -210,6 +206,7 @@ func runServer(cmd *Command, args []string) bool {
 			*masterVolumeSizeLimitMB, *masterVolumePreallocate,
 			*pulseSeconds, *masterDefaultReplicaPlacement, *serverGarbageThreshold,
 			serverWhiteList, *serverDisableHttp,
+			*serverMetricsAddress, *serverMetricsIntervalSec,
 		)
 
 		glog.V(0).Infof("Start Seaweed Master %s at %s:%d", util.VERSION, *serverIp, *masterPort)
diff --git a/weed/command/volume.go b/weed/command/volume.go
index 5726528d5..c775ac5cf 100644
--- a/weed/command/volume.go
+++ b/weed/command/volume.go
@@ -45,8 +45,6 @@ type VolumeServerOptions struct {
 	cpuProfile            *string
 	memProfile            *string
 	compactionMBPerSecond *int
-	metricsAddress        *string
-	metricsIntervalSec    *int
 }
 
 func init() {
@@ -68,8 +66,6 @@ func init() {
 	v.cpuProfile = cmdVolume.Flag.String("cpuprofile", "", "cpu profile output file")
 	v.memProfile = cmdVolume.Flag.String("memprofile", "", "memory profile output file")
 	v.compactionMBPerSecond = cmdVolume.Flag.Int("compactionMBps", 0, "limit background compaction or copying speed in mega bytes per second")
-	v.metricsAddress = cmdVolume.Flag.String("metrics.address", "", "Prometheus gateway address")
-	v.metricsIntervalSec = cmdVolume.Flag.Int("metrics.intervalSeconds", 15, "Prometheus push interval in seconds")
 }
 
 var cmdVolume = &Command{
@@ -165,8 +161,6 @@ func (v VolumeServerOptions) startVolumeServer(volumeFolders, maxVolumeCounts, v
 		v.whiteList,
 		*v.fixJpgOrientation, *v.readRedirect,
 		*v.compactionMBPerSecond,
-		*v.metricsAddress,
-		*v.metricsIntervalSec,
 	)
 
 	listeningAddress := *v.bindIp + ":" + strconv.Itoa(*v.port)
diff --git a/weed/pb/master.proto b/weed/pb/master.proto
index 965a6a990..f450a1b8c 100644
--- a/weed/pb/master.proto
+++ b/weed/pb/master.proto
@@ -52,8 +52,10 @@ message Heartbeat {
 }
 
 message HeartbeatResponse {
-    uint64 volumeSizeLimit = 1;
-    string leader = 3;
+    uint64 volume_size_limit = 1;
+    string leader = 2;
+    string metrics_address = 3;
+    uint32 metrics_interval_seconds = 4;
 }
 
 message VolumeInformationMessage {
diff --git a/weed/pb/master_pb/master.pb.go b/weed/pb/master_pb/master.pb.go
index 22113dc4a..8dd4bc6a9 100644
--- a/weed/pb/master_pb/master.pb.go
+++ b/weed/pb/master_pb/master.pb.go
@@ -202,8 +202,10 @@ func (m *Heartbeat) GetHasNoEcShards() bool {
 }
 
 type HeartbeatResponse struct {
-	VolumeSizeLimit uint64 `protobuf:"varint,1,opt,name=volumeSizeLimit" json:"volumeSizeLimit,omitempty"`
-	Leader          string `protobuf:"bytes,3,opt,name=leader" json:"leader,omitempty"`
+	VolumeSizeLimit        uint64 `protobuf:"varint,1,opt,name=volume_size_limit,json=volumeSizeLimit" json:"volume_size_limit,omitempty"`
+	Leader                 string `protobuf:"bytes,2,opt,name=leader" json:"leader,omitempty"`
+	MetricsAddress         string `protobuf:"bytes,3,opt,name=metrics_address,json=metricsAddress" json:"metrics_address,omitempty"`
+	MetricsIntervalSeconds uint32 `protobuf:"varint,4,opt,name=metrics_interval_seconds,json=metricsIntervalSeconds" json:"metrics_interval_seconds,omitempty"`
 }
 
 func (m *HeartbeatResponse) Reset()                    { *m = HeartbeatResponse{} }
@@ -225,6 +227,20 @@ func (m *HeartbeatResponse) GetLeader() string {
 	return ""
 }
 
+func (m *HeartbeatResponse) GetMetricsAddress() string {
+	if m != nil {
+		return m.MetricsAddress
+	}
+	return ""
+}
+
+func (m *HeartbeatResponse) GetMetricsIntervalSeconds() uint32 {
+	if m != nil {
+		return m.MetricsIntervalSeconds
+	}
+	return 0
+}
+
 type VolumeInformationMessage struct {
 	Id               uint32 `protobuf:"varint,1,opt,name=id" json:"id,omitempty"`
 	Size             uint64 `protobuf:"varint,2,opt,name=size" json:"size,omitempty"`
@@ -1708,117 +1724,120 @@ var _Seaweed_serviceDesc = grpc.ServiceDesc{
 func init() { proto.RegisterFile("master.proto", fileDescriptor0) }
 
 var fileDescriptor0 = []byte{
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+	0xb8, 0x60, 0x01, 0xb7, 0x30, 0x2f, 0x00, 0xea, 0x5c, 0x07, 0x68, 0xed, 0x32, 0x40, 0xeb, 0x39,
+	0xa0, 0xee, 0x3f, 0x1c, 0x20, 0xe5, 0x9d, 0x0c, 0x04, 0x6f, 0x60, 0x2b, 0x09, 0x99, 0x48, 0x84,
+	0x1c, 0x13, 0x64, 0x43, 0x37, 0x6d, 0x59, 0x51, 0xe4, 0x58, 0x22, 0xa3, 0x34, 0xe3, 0x18, 0x6a,
+	0xae, 0xee, 0xc9, 0x4d, 0x49, 0x50, 0xcc, 0x6a, 0x4b, 0x5f, 0x5f, 0x68, 0xe9, 0xee, 0x03, 0x68,
+	0x4f, 0x44, 0x92, 0xd1, 0x13, 0x7c, 0x31, 0x4f, 0xbf, 0x8e, 0xf7, 0xc6, 0xbb, 0x5a, 0x01, 0xc4,
+	0x18, 0x60, 0xbf, 0xf0, 0x7e, 0x55, 0x01, 0xfc, 0x2d, 0xdc, 0x2c, 0x24, 0x64, 0xbd, 0xb4, 0x71,
+	0xf9, 0x14, 0x76, 0x58, 0x1c, 0x44, 0xb3, 0x10, 0xfd, 0x58, 0xb6, 0x9f, 0x28, 0x9f, 0x6a, 0x1d,
+	0x35, 0x0c, 0x6c, 0x1b, 0xee, 0x53, 0xc5, 0xb4, 0xd3, 0xed, 0x47, 0x40, 0xac, 0x16, 0x06, 0xb9,
+	0x46, 0x4d, 0x69, 0xf4, 0x0d, 0xe7, 0x20, 0x30, 0xd2, 0xee, 0x73, 0xd8, 0x59, 0xdc, 0xdc, 0x84,
+	0xea, 0x07, 0xd0, 0x2e, 0x60, 0xb7, 0xf5, 0xe9, 0x66, 0xa9, 0x2c, 0x14, 0x7a, 0x5e, 0x59, 0xd2,
+	0xfd, 0x2e, 0xbc, 0x53, 0xb0, 0x1e, 0xa9, 0x42, 0x7b, 0x55, 0xfd, 0x1f, 0xc1, 0x70, 0x59, 0x5c,
+	0xfb, 0xe0, 0xfe, 0xab, 0x06, 0x9d, 0x47, 0x26, 0xa3, 0x64, 0x0f, 0x2e, 0x75, 0xdd, 0x96, 0xea,
+	0xba, 0x77, 0xa1, 0x53, 0x79, 0x69, 0xe9, 0x71, 0xae, 0x7d, 0x5e, 0x7a, 0x66, 0xad, 0x7a, 0x90,
+	0xd5, 0x95, 0xd8, 0xe2, 0x83, 0xec, 0x1e, 0x0c, 0x8e, 0x33, 0xc4, 0xe5, 0xb7, 0x5b, 0xc3, 0xdb,
+	0x94, 0x8c, 0xb2, 0xec, 0x1e, 0x6c, 0xd1, 0x40, 0xb0, 0xf3, 0x05, 0x69, 0x7d, 0xbf, 0x06, 0x9a,
+	0x55, 0x96, 0xff, 0x3c, 0x77, 0x94, 0xc5, 0xc7, 0x09, 0x1f, 0xae, 0x7f, 0xfd, 0xb7, 0x97, 0x39,
+	0x8d, 0xe4, 0x70, 0xf2, 0x0c, 0x7a, 0x76, 0x86, 0x37, 0x96, 0x36, 0x5e, 0xfb, 0x7d, 0xd0, 0xc1,
+	0x82, 0xc5, 0xdd, 0x3f, 0xd4, 0xa0, 0xe9, 0xd1, 0xe0, 0xec, 0xed, 0xc6, 0xf7, 0x33, 0xd8, 0xcc,
+	0x6b, 0x71, 0x05, 0xe2, 0x77, 0x4a, 0xc0, 0x94, 0xaf, 0x92, 0xd7, 0x0d, 0x4b, 0x5f, 0xdc, 0xfd,
+	0x9f, 0x03, 0xbd, 0x47, 0x79, 0xbd, 0x7f, 0xbb, 0xc1, 0xb8, 0x0f, 0x20, 0x1b, 0x54, 0x05, 0x87,
+	0x72, 0x43, 0xb7, 0xe1, 0xf6, 0x5a, 0x99, 0x59, 0x71, 0xf7, 0x4f, 0x35, 0xe8, 0xbc, 0x48, 0xd2,
+	0x24, 0x4a, 0x4e, 0xe6, 0x6f, 0xf7, 0xe9, 0x0f, 0x60, 0x50, 0xea, 0xe5, 0x15, 0x10, 0x6e, 0x2d,
+	0x5c, 0x86, 0x22, 0xd8, 0xde, 0x66, 0x58, 0xf9, 0xe6, 0xee, 0x16, 0x0c, 0xcc, 0x5c, 0x5a, 0x94,
+	0x64, 0xf7, 0xf7, 0x0e, 0x90, 0x32, 0xd5, 0xd4, 0xca, 0x1f, 0x43, 0x57, 0x18, 0xec, 0xd4, 0x7e,
+	0x66, 0x34, 0x2f, 0xdf, 0xbd, 0x32, 0xb6, 0x5e, 0x47, 0x94, 0x91, 0xfe, 0x1e, 0x6c, 0x2f, 0xbd,
+	0xaf, 0xfd, 0xe9, 0x91, 0x41, 0x78, 0xb0, 0xf0, 0xc4, 0xfe, 0xe2, 0xc8, 0xfd, 0x14, 0x6e, 0xea,
+	0xe1, 0xd0, 0xd6, 0x71, 0x5b, 0x5f, 0x97, 0xa6, 0xbc, 0x6e, 0x31, 0xe5, 0xb9, 0xff, 0x75, 0x60,
+	0x67, 0x51, 0xcd, 0xf8, 0x7f, 0x95, 0x1e, 0xa1, 0x40, 0x4c, 0xbd, 0x29, 0xcf, 0xab, 0x7a, 0x4c,
+	0xfc, 0x64, 0x69, 0x5e, 0x5d, 0xb4, 0xbd, 0x67, 0xeb, 0x50, 0x31, 0xb2, 0xf6, 0x79, 0x95, 0xc0,
+	0x47, 0x14, 0x06, 0x4b, 0x62, 0x72, 0xaa, 0xb7, 0xfb, 0x1a, 0x9f, 0x36, 0x8c, 0xe2, 0x37, 0x18,
+	0x58, 0xef, 0xff, 0x7b, 0x0d, 0x36, 0x26, 0x48, 0x5f, 0x21, 0x86, 0xe4, 0x10, 0xba, 0x13, 0x8c,
+	0xc3, 0xe2, 0xbf, 0xdf, 0x76, 0x49, 0x39, 0xa7, 0x8e, 0xbe, 0xb5, 0x8a, 0x9a, 0xf7, 0xa6, 0x1b,
+	0xbb, 0xce, 0xc7, 0x0e, 0x79, 0x06, 0xdd, 0xc7, 0x88, 0xe9, 0x7e, 0x12, 0xc7, 0x18, 0x08, 0x0c,
+	0xc9, 0x7b, 0xe5, 0x0e, 0xb9, 0xfc, 0x04, 0x1a, 0xdd, 0x5a, 0x2a, 0xd4, 0xd6, 0x5b, 0x63, 0xf1,
+	0x39, 0x74, 0xca, 0x93, 0x7f, 0xc5, 0xe0, 0x8a, 0x77, 0xca, 0xe8, 0xce, 0x35, 0x4f, 0x06, 0xf7,
+	0x06, 0xf9, 0x0c, 0xd6, 0xf5, 0x28, 0x4a, 0x86, 0x25, 0xe1, 0xca, 0xac, 0x5d, 0xf1, 0xab, 0x3a,
+	0xb7, 0xba, 0x37, 0xc8, 0x63, 0x80, 0x62, 0x98, 0x23, 0x65, 0x5c, 0x96, 0xa6, 0xc9, 0xd1, 0xed,
+	0x4b, 0xb8, 0xb9, 0xb1, 0x5f, 0x40, 0xaf, 0x3a, 0x72, 0x90, 0xf1, 0xca, 0xa9, 0xa2, 0x94, 0x77,
+	0xa3, 0xbb, 0x57, 0x48, 0xe4, 0x86, 0x7f, 0x05, 0xfd, 0xc5, 0x49, 0x82, 0xb8, 0x2b, 0x15, 0x2b,
+	0x53, 0xc9, 0xe8, 0xfd, 0x2b, 0x65, 0xca, 0x20, 0x14, 0xa9, 0x5f, 0x01, 0x61, 0xa9, 0x4e, 0x54,
+	0x40, 0x58, 0xae, 0x17, 0x1a, 0x84, 0x6a, 0xbe, 0x54, 0x40, 0x58, 0x99, 0xdd, 0x15, 0x10, 0x56,
+	0x27, 0x9b, 0x7b, 0xe3, 0x68, 0x5d, 0xfd, 0xe2, 0xfe, 0xe4, 0xff, 0x01, 0x00, 0x00, 0xff, 0xff,
+	0x76, 0xec, 0xe7, 0x98, 0xf2, 0x16, 0x00, 0x00,
 }
diff --git a/weed/server/filer_server.go b/weed/server/filer_server.go
index d437f0597..64c738739 100644
--- a/weed/server/filer_server.go
+++ b/weed/server/filer_server.go
@@ -87,7 +87,10 @@ func NewFilerServer(defaultMux, readonlyMux *http.ServeMux, option *FilerOption)
 		readonlyMux.HandleFunc("/", fs.readonlyFilerHandler)
 	}
 
-	stats.StartPushingMetric("filer", stats.SourceName(option.Port), stats.FilerGather, option.MetricsAddress, option.MetricsIntervalSec)
+	go stats.LoopPushingMetric("filer", stats.SourceName(option.Port), stats.FilerGather,
+		func() (addr string, intervalSeconds int) {
+			return option.MetricsAddress, option.MetricsIntervalSec
+		})
 
 	return fs, nil
 }
diff --git a/weed/server/master_grpc_server.go b/weed/server/master_grpc_server.go
index 120a730d5..b766b8d7d 100644
--- a/weed/server/master_grpc_server.go
+++ b/weed/server/master_grpc_server.go
@@ -156,7 +156,9 @@ func (ms *MasterServer) SendHeartbeat(stream master_pb.Seaweed_SendHeartbeatServ
 			return err
 		}
 		if err := stream.Send(&master_pb.HeartbeatResponse{
-			Leader: newLeader,
+			Leader:                 newLeader,
+			MetricsAddress:         ms.metricsAddress,
+			MetricsIntervalSeconds: uint32(ms.metricsIntervalSec),
 		}); err != nil {
 			return err
 		}
diff --git a/weed/server/master_server.go b/weed/server/master_server.go
index 95f4218de..180007df7 100644
--- a/weed/server/master_server.go
+++ b/weed/server/master_server.go
@@ -34,6 +34,8 @@ type MasterServer struct {
 	defaultReplicaPlacement string
 	garbageThreshold        float64
 	guard                   *security.Guard
+	metricsAddress          string
+	metricsIntervalSec      int
 
 	Topo   *topology.Topology
 	vg     *topology.VolumeGrowth
@@ -56,6 +58,8 @@ func NewMasterServer(r *mux.Router, port int, metaFolder string,
 	garbageThreshold float64,
 	whiteList []string,
 	disableHttp bool,
+	metricsAddress string,
+	metricsIntervalSec int,
 ) *MasterServer {
 
 	v := viper.GetViper()
@@ -80,6 +84,8 @@ func NewMasterServer(r *mux.Router, port int, metaFolder string,
 		garbageThreshold:        garbageThreshold,
 		clientChans:             make(map[string]chan *master_pb.VolumeLocation),
 		grpcDialOpiton:          security.LoadClientTLS(v.Sub("grpc"), "master"),
+		metricsAddress:          metricsAddress,
+		metricsIntervalSec:      metricsIntervalSec,
 	}
 	ms.bounedLeaderChan = make(chan int, 16)
 	seq := sequence.NewMemorySequencer()
diff --git a/weed/server/volume_grpc_client_to_master.go b/weed/server/volume_grpc_client_to_master.go
index d493b7233..731675b48 100644
--- a/weed/server/volume_grpc_client_to_master.go
+++ b/weed/server/volume_grpc_client_to_master.go
@@ -86,6 +86,10 @@ func (vs *VolumeServer) doHeartbeat(ctx context.Context, masterNode, masterGrpcA
 				doneChan <- nil
 				return
 			}
+			if in.GetMetricsAddress() != "" && vs.MetricsAddress != in.GetMetricsAddress() {
+				vs.MetricsAddress = in.GetMetricsAddress()
+				vs.MetricsIntervalSec = int(in.GetMetricsIntervalSeconds())
+			}
 		}
 	}()
 
diff --git a/weed/server/volume_server.go b/weed/server/volume_server.go
index 4f21234dd..6cf654738 100644
--- a/weed/server/volume_server.go
+++ b/weed/server/volume_server.go
@@ -41,8 +41,6 @@ func NewVolumeServer(adminMux, publicMux *http.ServeMux, ip string,
 	fixJpgOrientation bool,
 	readRedirect bool,
 	compactionMBPerSecond int,
-	metricsAddress string,
-	metricsIntervalSec int,
 ) *VolumeServer {
 
 	v := viper.GetViper()
@@ -88,7 +86,10 @@ func NewVolumeServer(adminMux, publicMux *http.ServeMux, ip string,
 
 	go vs.heartbeat()
 	hostAddress := fmt.Sprintf("%s:%d", ip, port)
-	stats.StartPushingMetric("volumeServer", hostAddress, stats.VolumeServerGather, metricsAddress, metricsIntervalSec)
+	go stats.LoopPushingMetric("volumeServer", hostAddress, stats.VolumeServerGather,
+		func() (addr string, intervalSeconds int) {
+			return vs.MetricsAddress, vs.MetricsIntervalSec
+		})
 
 	return vs
 }
diff --git a/weed/stats/metrics.go b/weed/stats/metrics.go
index ce0af342d..2912bd34e 100644
--- a/weed/stats/metrics.go
+++ b/weed/stats/metrics.go
@@ -86,25 +86,29 @@ func init() {
 
 }
 
-func StartPushingMetric(name, instance string, gatherer *prometheus.Registry, addr string, intervalSeconds int) {
-	if intervalSeconds == 0 || addr == "" {
-		glog.V(0).Info("disable metrics reporting")
-		return
-	}
-	glog.V(0).Infof("push metrics to %s every %d seconds", addr, intervalSeconds)
-	go loopPushMetrics(name, instance, gatherer, addr, intervalSeconds)
-}
-
-func loopPushMetrics(name, instance string, gatherer *prometheus.Registry, addr string, intervalSeconds int) {
+func LoopPushingMetric(name, instance string, gatherer *prometheus.Registry, fnGetMetricsDest func() (addr string, intervalSeconds int)) {
 
+	addr, intervalSeconds := fnGetMetricsDest()
 	pusher := push.New(addr, name).Gatherer(gatherer).Grouping("instance", instance)
+	currentAddr := addr
 
 	for {
-		err := pusher.Push()
-		if err != nil {
-			glog.V(0).Infof("could not push metrics to prometheus push gateway %s: %v", addr, err)
+		if currentAddr != "" {
+			err := pusher.Push()
+			if err != nil {
+				glog.V(0).Infof("could not push metrics to prometheus push gateway %s: %v", addr, err)
+			}
+		}
+		if intervalSeconds <= 0 {
+			intervalSeconds = 15
 		}
 		time.Sleep(time.Duration(intervalSeconds) * time.Second)
+		addr, intervalSeconds = fnGetMetricsDest()
+		if currentAddr != addr {
+			pusher = push.New(addr, name).Gatherer(gatherer).Grouping("instance", instance)
+			currentAddr = addr
+		}
+
 	}
 }