mirror of
https://github.com/seaweedfs/seaweedfs.git
synced 2024-01-19 02:48:24 +00:00
27c74a7e66
change replication_type to ReplicaPlacement, hopefully cleaner code works for 9 possible ReplicaPlacement xyz x : number of copies on other data centers y : number of copies on other racks z : number of copies on current rack x y z each can be 0,1,2 Minor: weed server "-mdir" default to "-dir" if empty
87 lines
3 KiB
Go
87 lines
3 KiB
Go
package main
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import (
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"code.google.com/p/weed-fs/go/glog"
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"code.google.com/p/weed-fs/go/util"
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"code.google.com/p/weed-fs/go/weed/weed_server"
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"github.com/gorilla/mux"
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"net/http"
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"os"
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"runtime"
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"strconv"
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"strings"
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"time"
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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", "", "master ip address")
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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")
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volumeSizeLimitMB = cmdMaster.Flag.Uint("volumeSizeLimitMB", 32*1000, "Default Volume Size in MegaBytes")
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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", "xml configuration file")
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defaultReplicaPlacement = cmdMaster.Flag.String("defaultReplication", "000", "Default replication type if not specified.")
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mReadTimeout = cmdMaster.Flag.Int("readTimeout", 3, "connection read timeout in 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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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 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, VERSION, *mport, *metaFolder,
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*volumeSizeLimitMB, *mpulse, *confFile, *defaultReplicaPlacement, *garbageThreshold, masterWhiteList,
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)
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glog.V(0).Infoln("Start Weed Master", VERSION, "at port", *masterIp+":"+strconv.Itoa(*mport))
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srv := &http.Server{
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Addr: *masterIp + ":" + strconv.Itoa(*mport),
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Handler: r,
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ReadTimeout: time.Duration(*mReadTimeout) * time.Second,
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}
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go func() {
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time.Sleep(100 * time.Millisecond)
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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, VERSION, peers, *masterIp+":"+strconv.Itoa(*mport), *metaFolder)
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ms.SetRaftServer(raftServer)
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}()
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e := srv.ListenAndServe()
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if e != nil {
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glog.Fatalf("Fail to start:%s", e)
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}
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return true
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}
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