Example #1
0
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
}
Example #2
0
//http://studygolang.com/articles/128
func runVolume(cmd *Command, args []string) bool {
	if *vMaxCpu < 1 {
		*vMaxCpu = runtime.NumCPU() //默认是所有cpu
	}
	runtime.GOMAXPROCS(*vMaxCpu)
	folders := strings.Split(*volumeFolders, ",")
	maxCountStrings := strings.Split(*maxVolumeCounts, ",")
	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)
		}
	}

	//确认参数正确性
	if len(folders) != len(maxCounts) {
		glog.Fatalf("%d directories by -dir, but only %d max is set by -max", len(folders), len(maxCounts))
	}

	//判定是否可写
	for _, folder := range folders {
		if err := util.TestFolderWritable(folder); err != nil {
			glog.Fatalf("Check Data Folder(-dir) Writable %s : %s", folder, err)
		}
	}

	if *publicIp == "" {
		if *ip == "" {
			*publicIp = "localhost"
		} else {
			*publicIp = *ip
		}
	}
	if *volumeWhiteListOption != "" {
		volumeWhiteList = strings.Split(*volumeWhiteListOption, ",")
	}

	r := http.NewServeMux()

	//创建一个volume server
	volumeServer := weed_server.NewVolumeServer(r, *ip, *vport, *publicIp, folders, maxCounts,
		*masterNode, *vpulse, *dataCenter, *rack, volumeWhiteList,
		*fixJpgOrientation,
	)

	listeningAddress := *volumeBindIp + ":" + strconv.Itoa(*vport)

	glog.V(0).Infoln("Start Seaweed volume server", util.VERSION, "at", listeningAddress)

	//创建一个带超时的侦听
	listener, e := util.NewListener(listeningAddress, time.Duration(*vTimeout)*time.Second)
	if e != nil {
		glog.Fatalf(e.Error())
	}

	OnInterrupt(func() {
		volumeServer.Shutdown() //先shutdown现 os.exit
	})

	if e := http.Serve(listener, r); e != nil {
		glog.Fatalf("Fail to serve:%s", e.Error())
	}
	return true
}