package main import ( "code.google.com/p/weed-fs/go/glog" "code.google.com/p/weed-fs/go/util" "code.google.com/p/weed-fs/go/weed/weed_server" "net/http" "os" "runtime" "strconv" "strings" "time" ) func init() { cmdVolume.Run = runVolume // break init cycle } var cmdVolume = &Command{ UsageLine: "volume -port=8080 -dir=/tmp -max=5 -ip=server_name -mserver=localhost:9333", Short: "start a volume server", Long: `start a volume server to provide storage spaces `, } var ( vport = cmdVolume.Flag.Int("port", 8080, "http listen port") volumeFolders = cmdVolume.Flag.String("dir", os.TempDir(), "directories to store data files. dir[,dir]...") maxVolumeCounts = cmdVolume.Flag.String("max", "7", "maximum numbers of volumes, count[,count]...") ip = cmdVolume.Flag.String("ip", "", "ip or server name") publicIp = cmdVolume.Flag.String("publicIp", "", "Publicly accessible ") masterNode = cmdVolume.Flag.String("mserver", "localhost:9333", "master server location") vpulse = cmdVolume.Flag.Int("pulseSeconds", 5, "number of seconds between heartbeats, must be smaller than or equal to the master's setting") vTimeout = cmdVolume.Flag.Int("idleTimeout", 10, "connection idle seconds") vMaxCpu = cmdVolume.Flag.Int("maxCpu", 0, "maximum number of CPUs. 0 means all available CPUs") dataCenter = cmdVolume.Flag.String("dataCenter", "", "current volume server's data center name") rack = cmdVolume.Flag.String("rack", "", "current volume server's rack name") volumeWhiteListOption = cmdVolume.Flag.String("whiteList", "", "comma separated Ip addresses having write permission. No limit if empty.") volumeWhiteList []string ) func runVolume(cmd *Command, args []string) bool { if *vMaxCpu < 1 { *vMaxCpu = runtime.NumCPU() } 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) } } 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 *publicIp == "" { if *ip == "" { *publicIp = "localhost" } else { *publicIp = *ip } } if *volumeWhiteListOption != "" { volumeWhiteList = strings.Split(*volumeWhiteListOption, ",") } r := http.NewServeMux() volumeServer := weed_server.NewVolumeServer(r, *ip, *vport, *publicIp, folders, maxCounts, *masterNode, *vpulse, *dataCenter, *rack, volumeWhiteList, ) listeningAddress := *ip + ":" + strconv.Itoa(*vport) glog.V(0).Infoln("Start Weed volume server", util.VERSION, "at", listeningAddress) listener, e := util.NewListener(listeningAddress, time.Duration(*vTimeout)*time.Second) if e != nil { glog.Fatalf(e.Error()) } OnInterrupt(func() { volumeServer.Shutdown() }) if e := http.Serve(listener, r); e != nil { glog.Fatalf("Fail to serve:%s", e.Error()) } return true }