mirror of
https://github.com/seaweedfs/seaweedfs.git
synced 2024-11-28 13:31:27 +08:00
107 lines
3.9 KiB
Go
107 lines
3.9 KiB
Go
package command
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import (
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"net/http"
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"os"
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"runtime"
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"runtime/pprof"
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"strconv"
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"strings"
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"time"
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"github.com/chrislusf/seaweedfs/weed/glog"
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"github.com/chrislusf/seaweedfs/weed/server"
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"github.com/chrislusf/seaweedfs/weed/util"
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"github.com/gorilla/mux"
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)
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func init() {
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cmdMaster.Run = runMaster // break init cycle
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}
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var cmdMaster = &Command{
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UsageLine: "master -port=9333",
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Short: "start a master server",
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Long: `start a master server to provide volume=>location mapping service
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and sequence number of file ids
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`,
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}
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var (
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mport = cmdMaster.Flag.Int("port", 9333, "http listen port")
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masterIp = cmdMaster.Flag.String("ip", "localhost", "master <ip>|<server> address")
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masterBindIp = cmdMaster.Flag.String("ip.bind", "0.0.0.0", "ip address to bind to")
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metaFolder = cmdMaster.Flag.String("mdir", os.TempDir(), "data directory to store meta data")
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masterPeers = cmdMaster.Flag.String("peers", "", "other master nodes in comma separated ip:port list, example: 127.0.0.1:9093,127.0.0.1:9094")
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volumeSizeLimitMB = cmdMaster.Flag.Uint("volumeSizeLimitMB", 30*1000, "Master stops directing writes to oversized volumes.")
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volumePreallocate = cmdMaster.Flag.Bool("volumePreallocate", false, "Preallocate disk space for volumes.")
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mpulse = cmdMaster.Flag.Int("pulseSeconds", 5, "number of seconds between heartbeats")
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confFile = cmdMaster.Flag.String("conf", "/etc/weedfs/weedfs.conf", "Deprecating! xml configuration file")
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defaultReplicaPlacement = cmdMaster.Flag.String("defaultReplication", "000", "Default replication type if not specified.")
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mTimeout = cmdMaster.Flag.Int("idleTimeout", 10, "connection idle seconds")
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mMaxCpu = cmdMaster.Flag.Int("maxCpu", 0, "maximum number of CPUs. 0 means all available CPUs")
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garbageThreshold = cmdMaster.Flag.String("garbageThreshold", "0.3", "threshold to vacuum and reclaim spaces")
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masterWhiteListOption = cmdMaster.Flag.String("whiteList", "", "comma separated Ip addresses having write permission. No limit if empty.")
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masterSecureKey = cmdMaster.Flag.String("secure.secret", "", "secret to encrypt Json Web Token(JWT)")
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masterCpuProfile = cmdMaster.Flag.String("cpuprofile", "", "cpu profile output file")
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masterWhiteList []string
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)
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func runMaster(cmd *Command, args []string) bool {
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if *mMaxCpu < 1 {
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*mMaxCpu = runtime.NumCPU()
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}
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runtime.GOMAXPROCS(*mMaxCpu)
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if *masterCpuProfile != "" {
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f, err := os.Create(*masterCpuProfile)
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if err != nil {
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glog.Fatal(err)
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}
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pprof.StartCPUProfile(f)
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defer pprof.StopCPUProfile()
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OnInterrupt(func() {
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pprof.StopCPUProfile()
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})
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}
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if err := util.TestFolderWritable(*metaFolder); err != nil {
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glog.Fatalf("Check Meta Folder (-mdir) Writable %s : %s", *metaFolder, err)
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}
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if *masterWhiteListOption != "" {
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masterWhiteList = strings.Split(*masterWhiteListOption, ",")
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}
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r := mux.NewRouter()
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ms := weed_server.NewMasterServer(r, *mport, *metaFolder,
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*volumeSizeLimitMB, *volumePreallocate,
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*mpulse, *confFile, *defaultReplicaPlacement, *garbageThreshold,
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masterWhiteList, *masterSecureKey,
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)
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listeningAddress := *masterBindIp + ":" + strconv.Itoa(*mport)
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glog.V(0).Infoln("Start Seaweed Master", util.VERSION, "at", listeningAddress)
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listener, e := util.NewListener(listeningAddress, time.Duration(*mTimeout)*time.Second)
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if e != nil {
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glog.Fatalf("Master startup error: %v", e)
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}
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go func() {
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time.Sleep(100 * time.Millisecond)
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myMasterAddress := *masterIp + ":" + strconv.Itoa(*mport)
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var peers []string
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if *masterPeers != "" {
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peers = strings.Split(*masterPeers, ",")
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}
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raftServer := weed_server.NewRaftServer(r, peers, myMasterAddress, *metaFolder, ms.Topo, *mpulse)
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ms.SetRaftServer(raftServer)
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}()
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if e := http.Serve(listener, r); e != nil {
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glog.Fatalf("Fail to serve: %v", e)
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}
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return true
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}
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