func runMount(cmd *Command, args []string) bool {
fmt.Printf("This is Seaweed File System version %s %s %s\n", util.VERSION, runtime.GOOS, runtime.GOARCH)
if *mountOptions.dir == "" {
fmt.Printf("Please specify the mount directory via \"-dir\"")
return false
}
c, err := fuse.Mount(*mountOptions.dir)
if err != nil {
glog.Fatal(err)
return false
}
//信号处理
OnInterrupt(func() {
fuse.Unmount(*mountOptions.dir)
c.Close()
})
err = fs.Serve(c, WFS{})
if err != nil {
fuse.Unmount(*mountOptions.dir)
}
// check if the mount process has an error to report
<-c.Ready //到此才完全成功
if err := c.MountError; err != nil {
glog.Fatal(err)
}
return true
}
func NewFilerServer(r *http.ServeMux, port int, master string, dir string, collection string) (fs *FilerServer, err error) {
fs = &FilerServer{
master: master,
collection: collection,
port: ":" + strconv.Itoa(port),
}
if fs.filer, err = filer.NewFilerEmbedded(master, dir); err != nil {
glog.Fatal("Can not start filer in dir", dir, ": ", err.Error())
return
}
r.HandleFunc("/admin/mv", fs.moveHandler)
r.HandleFunc("/", fs.filerHandler)
return fs, nil
}
func runServer(cmd *Command, args []string) bool {
if *serverOptions.cpuprofile != "" {
f, err := os.Create(*serverOptions.cpuprofile)
if err != nil {
glog.Fatal(err)
}
//开启cpu profile
pprof.StartCPUProfile(f)
defer pprof.StopCPUProfile()
}
if *serverPublicIp == "" {
if *serverIp == "" {
*serverPublicIp = "localhost"
} else {
*serverPublicIp = *serverIp
}
}
*filerOptions.master = *serverPublicIp + ":" + strconv.Itoa(*masterPort)
if *filerOptions.defaultReplicaPlacement == "" {
*filerOptions.defaultReplicaPlacement = *masterDefaultReplicaPlacement
}
if *serverMaxCpu < 1 {
*serverMaxCpu = runtime.NumCPU()
}
runtime.GOMAXPROCS(*serverMaxCpu)
folders := strings.Split(*volumeDataFolders, ",")
maxCountStrings := strings.Split(*volumeMaxDataVolumeCounts, ",")
maxCounts := make([]int, 0)
for _, maxString := range maxCountStrings {
if max, e := strconv.Atoi(maxString); e == nil {
maxCounts = append(maxCounts, max)
} else {
glog.Fatalf("The max specified in -max not a valid number %s", maxString)
}
}
if len(folders) != len(maxCounts) {
glog.Fatalf("%d directories by -dir, but only %d max is set by -max", len(folders), len(maxCounts))
}
for _, folder := range folders {
if err := util.TestFolderWritable(folder); err != nil {
glog.Fatalf("Check Data Folder(-dir) Writable %s : %s", folder, err)
}
}
if *masterMetaFolder == "" {
*masterMetaFolder = folders[0]
}
if *filerOptions.dir == "" {
*filerOptions.dir = *masterMetaFolder + "/filer"
os.MkdirAll(*filerOptions.dir, 0700)
}
if err := util.TestFolderWritable(*masterMetaFolder); err != nil {
glog.Fatalf("Check Meta Folder (-mdir=\"%s\") Writable: %s", *masterMetaFolder, err)
}
if err := util.TestFolderWritable(*filerOptions.dir); err != nil {
glog.Fatalf("Check Mapping Meta Folder (-filer.dir=\"%s\") Writable: %s", *filerOptions.dir, err)
}
if *serverWhiteListOption != "" {
serverWhiteList = strings.Split(*serverWhiteListOption, ",")
}
//启用filer 翻译服务 即将weedfs的目录结构翻译成传统目录结构
if *isStartingFiler {
go func() {
r := http.NewServeMux()
//r.HandleFunc("/admin/mv", fs.moveHandler)
//r.HandleFunc("/", fs.filerHandler)
_, nfs_err := weed_server.NewFilerServer(r, *filerOptions.port, *filerOptions.master, *filerOptions.dir, *filerOptions.collection)
if nfs_err != nil {
glog.Fatalf(nfs_err.Error())
}
glog.V(0).Infoln("Start Seaweed Filer", util.VERSION, "at port", strconv.Itoa(*filerOptions.port))
filerListener, e := util.NewListener(
":"+strconv.Itoa(*filerOptions.port),
time.Duration(10)*time.Second,
)
if e != nil {
glog.Fatalf(e.Error())
}
if e := http.Serve(filerListener, r); e != nil {
glog.Fatalf("Filer Fail to serve:%s", e.Error())
}
}()
}
var raftWaitForMaster sync.WaitGroup
var volumeWait sync.WaitGroup
raftWaitForMaster.Add(1)
volumeWait.Add(1)
go func() {
r := mux.NewRouter()
ms := weed_server.NewMasterServer(r,
*masterPort,
*masterMetaFolder,
*masterVolumeSizeLimitMB,
*volumePulse,
*masterConfFile,
*masterDefaultReplicaPlacement,
*serverGarbageThreshold,
serverWhiteList,
)
glog.V(0).Infoln("Start Seaweed Master", util.VERSION, "at", *serverIp+":"+strconv.Itoa(*masterPort))
masterListener, e := util.NewListener(*serverBindIp+":"+strconv.Itoa(*masterPort), time.Duration(*serverTimeout)*time.Second)
if e != nil {
glog.Fatalf(e.Error())
}
//开启一个新的go程完成 RaftServer的启用
go func() {
raftWaitForMaster.Wait()
time.Sleep(100 * time.Millisecond)
myAddress := *serverPublicIp + ":" + strconv.Itoa(*masterPort)
var peers []string
if *serverPeers != "" {
peers = strings.Split(*serverPeers, ",")
}
raftServer := weed_server.NewRaftServer(r, peers, myAddress, *masterMetaFolder, ms.Topo, *volumePulse)
ms.SetRaftServer(raftServer)
volumeWait.Done()
}()
raftWaitForMaster.Done()
if e := http.Serve(masterListener, r); e != nil {
glog.Fatalf("Master Fail to serve:%s", e.Error())
}
}()
volumeWait.Wait()
time.Sleep(100 * time.Millisecond)
r := http.NewServeMux()
volumeServer := weed_server.NewVolumeServer(r, *serverIp, *volumePort, *serverPublicIp, folders, maxCounts,
*serverIp+":"+strconv.Itoa(*masterPort), *volumePulse, *serverDataCenter, *serverRack, serverWhiteList,
*volumeFixJpgOrientation,
)
glog.V(0).Infoln("Start Seaweed volume server", util.VERSION, "at", *serverIp+":"+strconv.Itoa(*volumePort))
volumeListener, e := util.NewListener(
*serverBindIp+":"+strconv.Itoa(*volumePort),
time.Duration(*serverTimeout)*time.Second,
)
if e != nil {
glog.Fatalf(e.Error())
}
//信号处理
OnInterrupt(func() {
volumeServer.Shutdown()
pprof.StopCPUProfile()
})
//开启一个volumeLister
if e := http.Serve(volumeListener, r); e != nil {
glog.Fatalf("Fail to serve:%s", e.Error())
}
return true
}