seaweedfs/weed/command/volume.go

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package command
import (
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"fmt"
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"github.com/chrislusf/seaweedfs/weed/storage/types"
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"net/http"
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httppprof "net/http/pprof"
"os"
"runtime"
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"runtime/pprof"
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"strconv"
"strings"
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"time"
"github.com/spf13/viper"
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"google.golang.org/grpc"
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"github.com/chrislusf/seaweedfs/weed/util/grace"
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"github.com/chrislusf/seaweedfs/weed/pb"
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"github.com/chrislusf/seaweedfs/weed/security"
"github.com/chrislusf/seaweedfs/weed/util/httpdown"
"google.golang.org/grpc/reflection"
"github.com/chrislusf/seaweedfs/weed/glog"
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"github.com/chrislusf/seaweedfs/weed/pb/volume_server_pb"
"github.com/chrislusf/seaweedfs/weed/server"
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stats_collect "github.com/chrislusf/seaweedfs/weed/stats"
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"github.com/chrislusf/seaweedfs/weed/storage"
"github.com/chrislusf/seaweedfs/weed/util"
)
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var (
v VolumeServerOptions
)
type VolumeServerOptions struct {
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port *int
publicPort *int
folders []string
folderMaxLimits []int
idxFolder *string
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ip *string
publicUrl *string
bindIp *string
masters *string
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idleConnectionTimeout *int
dataCenter *string
rack *string
whiteList []string
indexType *string
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diskType *string
fixJpgOrientation *bool
readRedirect *bool
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cpuProfile *string
memProfile *string
compactionMBPerSecond *int
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fileSizeLimitMB *int
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minFreeSpacePercents []float32
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pprof *bool
preStopSeconds *int
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metricsHttpPort *int
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// pulseSeconds *int
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}
func init() {
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cmdVolume.Run = runVolume // break init cycle
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v.port = cmdVolume.Flag.Int("port", 8080, "http listen port")
v.publicPort = cmdVolume.Flag.Int("port.public", 0, "port opened to public")
v.ip = cmdVolume.Flag.String("ip", util.DetectedHostAddress(), "ip or server name")
v.publicUrl = cmdVolume.Flag.String("publicUrl", "", "Publicly accessible address")
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v.bindIp = cmdVolume.Flag.String("ip.bind", "0.0.0.0", "ip address to bind to")
v.masters = cmdVolume.Flag.String("mserver", "localhost:9333", "comma-separated master servers")
v.preStopSeconds = cmdVolume.Flag.Int("preStopSeconds", 10, "number of seconds between stop send heartbeats and stop volume server")
// v.pulseSeconds = cmdVolume.Flag.Int("pulseSeconds", 5, "number of seconds between heartbeats, must be smaller than or equal to the master's setting")
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v.idleConnectionTimeout = cmdVolume.Flag.Int("idleTimeout", 30, "connection idle seconds")
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v.dataCenter = cmdVolume.Flag.String("dataCenter", "", "current volume server's data center name")
v.rack = cmdVolume.Flag.String("rack", "", "current volume server's rack name")
v.indexType = cmdVolume.Flag.String("index", "memory", "Choose [memory|leveldb|leveldbMedium|leveldbLarge] mode for memory~performance balance.")
v.diskType = cmdVolume.Flag.String("disk", "", "[hdd|ssd] hard drive or solid state drive")
v.fixJpgOrientation = cmdVolume.Flag.Bool("images.fix.orientation", false, "Adjust jpg orientation when uploading.")
v.readRedirect = cmdVolume.Flag.Bool("read.redirect", true, "Redirect moved or non-local volumes.")
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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.fileSizeLimitMB = cmdVolume.Flag.Int("fileSizeLimitMB", 256, "limit file size to avoid out of memory")
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v.pprof = cmdVolume.Flag.Bool("pprof", false, "enable pprof http handlers. precludes --memprofile and --cpuprofile")
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v.metricsHttpPort = cmdVolume.Flag.Int("metricsPort", 0, "Prometheus metrics listen port")
v.idxFolder = cmdVolume.Flag.String("dir.idx", "", "directory to store .idx files")
}
var cmdVolume = &Command{
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UsageLine: "volume -port=8080 -dir=/tmp -max=5 -ip=server_name -mserver=localhost:9333",
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Short: "start a volume server",
Long: `start a volume server to provide storage spaces
`,
}
var (
volumeFolders = cmdVolume.Flag.String("dir", os.TempDir(), "directories to store data files. dir[,dir]...")
maxVolumeCounts = cmdVolume.Flag.String("max", "8", "maximum numbers of volumes, count[,count]... If set to zero, the limit will be auto configured.")
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volumeWhiteListOption = cmdVolume.Flag.String("whiteList", "", "comma separated Ip addresses having write permission. No limit if empty.")
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minFreeSpacePercent = cmdVolume.Flag.String("minFreeSpacePercent", "1", "minimum free disk space (default to 1%). Low disk space will mark all volumes as ReadOnly.")
)
func runVolume(cmd *Command, args []string) bool {
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util.LoadConfiguration("security", false)
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runtime.GOMAXPROCS(runtime.NumCPU())
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// If --pprof is set we assume the caller wants to be able to collect
// cpu and memory profiles via go tool pprof
if !*v.pprof {
grace.SetupProfiling(*v.cpuProfile, *v.memProfile)
}
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go stats_collect.StartMetricsServer(*v.metricsHttpPort)
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v.startVolumeServer(*volumeFolders, *maxVolumeCounts, *volumeWhiteListOption, *minFreeSpacePercent)
return true
}
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func (v VolumeServerOptions) startVolumeServer(volumeFolders, maxVolumeCounts, volumeWhiteListOption, minFreeSpacePercent string) {
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// Set multiple folders and each folder's max volume count limit'
v.folders = strings.Split(volumeFolders, ",")
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for _, folder := range v.folders {
if err := util.TestFolderWritable(util.ResolvePath(folder)); err != nil {
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glog.Fatalf("Check Data Folder(-dir) Writable %s : %s", folder, err)
}
}
// set max
maxCountStrings := strings.Split(maxVolumeCounts, ",")
for _, maxString := range maxCountStrings {
if max, e := strconv.Atoi(maxString); e == nil {
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v.folderMaxLimits = append(v.folderMaxLimits, max)
} else {
glog.Fatalf("The max specified in -max not a valid number %s", maxString)
}
}
if len(v.folderMaxLimits) == 1 && len(v.folders) > 1 {
for i := 0; i < len(v.folders)-1; i++ {
v.folderMaxLimits = append(v.folderMaxLimits, v.folderMaxLimits[0])
}
}
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if len(v.folders) != len(v.folderMaxLimits) {
glog.Fatalf("%d directories by -dir, but only %d max is set by -max", len(v.folders), len(v.folderMaxLimits))
}
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// set minFreeSpacePercent
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minFreeSpacePercentStrings := strings.Split(minFreeSpacePercent, ",")
for _, freeString := range minFreeSpacePercentStrings {
if value, e := strconv.ParseFloat(freeString, 32); e == nil {
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v.minFreeSpacePercents = append(v.minFreeSpacePercents, float32(value))
} else {
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glog.Fatalf("The value specified in -minFreeSpacePercent not a valid value %s", freeString)
}
}
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if len(v.minFreeSpacePercents) == 1 && len(v.folders) > 1 {
for i := 0; i < len(v.folders)-1; i++ {
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v.minFreeSpacePercents = append(v.minFreeSpacePercents, v.minFreeSpacePercents[0])
}
}
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if len(v.folders) != len(v.minFreeSpacePercents) {
glog.Fatalf("%d directories by -dir, but only %d minFreeSpacePercent is set by -minFreeSpacePercent", len(v.folders), len(v.minFreeSpacePercents))
}
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// set disk types
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var diskTypes []types.DiskType
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diskTypeStrings := strings.Split(*v.diskType, ",")
for _, diskTypeString := range diskTypeStrings {
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diskTypes = append(diskTypes, types.ToDiskType(diskTypeString))
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}
if len(diskTypes) == 1 && len(v.folders) > 1 {
for i := 0; i < len(v.folders)-1; i++ {
diskTypes = append(diskTypes, diskTypes[0])
}
}
if len(v.folders) != len(diskTypes) {
glog.Fatalf("%d directories by -dir, but only %d disk types is set by -disk", len(v.folders), len(diskTypes))
}
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// security related white list configuration
if volumeWhiteListOption != "" {
v.whiteList = strings.Split(volumeWhiteListOption, ",")
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}
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if *v.ip == "" {
*v.ip = util.DetectedHostAddress()
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glog.V(0).Infof("detected volume server ip address: %v", *v.ip)
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}
if *v.publicPort == 0 {
*v.publicPort = *v.port
}
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if *v.publicUrl == "" {
*v.publicUrl = *v.ip + ":" + strconv.Itoa(*v.publicPort)
}
volumeMux := http.NewServeMux()
publicVolumeMux := volumeMux
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if v.isSeparatedPublicPort() {
publicVolumeMux = http.NewServeMux()
}
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if *v.pprof {
volumeMux.HandleFunc("/debug/pprof/", httppprof.Index)
volumeMux.HandleFunc("/debug/pprof/cmdline", httppprof.Cmdline)
volumeMux.HandleFunc("/debug/pprof/profile", httppprof.Profile)
volumeMux.HandleFunc("/debug/pprof/symbol", httppprof.Symbol)
volumeMux.HandleFunc("/debug/pprof/trace", httppprof.Trace)
}
volumeNeedleMapKind := storage.NeedleMapInMemory
switch *v.indexType {
case "leveldb":
volumeNeedleMapKind = storage.NeedleMapLevelDb
case "leveldbMedium":
volumeNeedleMapKind = storage.NeedleMapLevelDbMedium
case "leveldbLarge":
volumeNeedleMapKind = storage.NeedleMapLevelDbLarge
}
masters := *v.masters
volumeServer := weed_server.NewVolumeServer(volumeMux, publicVolumeMux,
*v.ip, *v.port, *v.publicUrl,
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v.folders, v.folderMaxLimits, v.minFreeSpacePercents, diskTypes,
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*v.idxFolder,
volumeNeedleMapKind,
strings.Split(masters, ","), 5, *v.dataCenter, *v.rack,
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v.whiteList,
*v.fixJpgOrientation, *v.readRedirect,
*v.compactionMBPerSecond,
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*v.fileSizeLimitMB,
)
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// starting grpc server
grpcS := v.startGrpcService(volumeServer)
// starting public http server
var publicHttpDown httpdown.Server
if v.isSeparatedPublicPort() {
publicHttpDown = v.startPublicHttpService(publicVolumeMux)
if nil == publicHttpDown {
glog.Fatalf("start public http service failed")
}
}
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// starting the cluster http server
clusterHttpServer := v.startClusterHttpService(volumeMux)
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stopChan := make(chan bool)
grace.OnInterrupt(func() {
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fmt.Println("volume server has be killed")
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// Stop heartbeats
if !volumeServer.StopHeartbeat() {
glog.V(0).Infof("stop send heartbeat and wait %d seconds until shutdown ...", *v.preStopSeconds)
time.Sleep(time.Duration(*v.preStopSeconds) * time.Second)
}
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shutdown(publicHttpDown, clusterHttpServer, grpcS, volumeServer)
stopChan <- true
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})
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select {
case <-stopChan:
}
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}
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func shutdown(publicHttpDown httpdown.Server, clusterHttpServer httpdown.Server, grpcS *grpc.Server, volumeServer *weed_server.VolumeServer) {
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// firstly, stop the public http service to prevent from receiving new user request
if nil != publicHttpDown {
glog.V(0).Infof("stop public http server ... ")
if err := publicHttpDown.Stop(); err != nil {
glog.Warningf("stop the public http server failed, %v", err)
}
}
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glog.V(0).Infof("graceful stop cluster http server ... ")
if err := clusterHttpServer.Stop(); err != nil {
glog.Warningf("stop the cluster http server failed, %v", err)
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}
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glog.V(0).Infof("graceful stop gRPC ...")
grpcS.GracefulStop()
volumeServer.Shutdown()
pprof.StopCPUProfile()
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}
// check whether configure the public port
func (v VolumeServerOptions) isSeparatedPublicPort() bool {
return *v.publicPort != *v.port
}
func (v VolumeServerOptions) startGrpcService(vs volume_server_pb.VolumeServerServer) *grpc.Server {
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grpcPort := *v.port + 10000
grpcL, err := util.NewListener(*v.bindIp+":"+strconv.Itoa(grpcPort), 0)
if err != nil {
glog.Fatalf("failed to listen on grpc port %d: %v", grpcPort, err)
}
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grpcS := pb.NewGrpcServer(security.LoadServerTLS(util.GetViper(), "grpc.volume"))
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volume_server_pb.RegisterVolumeServerServer(grpcS, vs)
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reflection.Register(grpcS)
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go func() {
if err := grpcS.Serve(grpcL); err != nil {
glog.Fatalf("start gRPC service failed, %s", err)
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}
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}()
return grpcS
}
func (v VolumeServerOptions) startPublicHttpService(handler http.Handler) httpdown.Server {
publicListeningAddress := *v.bindIp + ":" + strconv.Itoa(*v.publicPort)
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glog.V(0).Infoln("Start Seaweed volume server", util.Version(), "public at", publicListeningAddress)
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publicListener, e := util.NewListener(publicListeningAddress, time.Duration(*v.idleConnectionTimeout)*time.Second)
if e != nil {
glog.Fatalf("Volume server listener error:%v", e)
}
pubHttp := httpdown.HTTP{StopTimeout: 5 * time.Minute, KillTimeout: 5 * time.Minute}
publicHttpDown := pubHttp.Serve(&http.Server{Handler: handler}, publicListener)
go func() {
if err := publicHttpDown.Wait(); err != nil {
glog.Errorf("public http down wait failed, %v", err)
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}
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}()
return publicHttpDown
}
func (v VolumeServerOptions) startClusterHttpService(handler http.Handler) httpdown.Server {
var (
certFile, keyFile string
)
if viper.GetString("https.volume.key") != "" {
certFile = viper.GetString("https.volume.cert")
keyFile = viper.GetString("https.volume.key")
}
listeningAddress := *v.bindIp + ":" + strconv.Itoa(*v.port)
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glog.V(0).Infof("Start Seaweed volume server %s at %s", util.Version(), listeningAddress)
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listener, e := util.NewListener(listeningAddress, time.Duration(*v.idleConnectionTimeout)*time.Second)
if e != nil {
glog.Fatalf("Volume server listener error:%v", e)
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}
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httpDown := httpdown.HTTP{
KillTimeout: 5 * time.Minute,
StopTimeout: 5 * time.Minute,
CertFile: certFile,
KeyFile: keyFile}
clusterHttpServer := httpDown.Serve(&http.Server{Handler: handler}, listener)
go func() {
if e := clusterHttpServer.Wait(); e != nil {
glog.Fatalf("Volume server fail to serve: %v", e)
}
}()
return clusterHttpServer
}