func NewMasterServer( r *mux.Router, port int, metaFolder string, volumeSizeLimitMB uint, pulseSeconds int, confFile string, defaultReplicaPlacement string, garbageThreshold string, whiteList []string, ) *MasterServer { ms := &MasterServer{ port: port, volumeSizeLimitMB: volumeSizeLimitMB, pulseSeconds: pulseSeconds, defaultReplicaPlacement: defaultReplicaPlacement, garbageThreshold: garbageThreshold, whiteList: whiteList, } ms.bounedLeaderChan = make(chan int, 16) //序列号生成器 seq := sequence.NewMemorySequencer() var e error if ms.Topo, e = topology.NewTopology("topo", confFile, seq, uint64(volumeSizeLimitMB)*1024*1024, pulseSeconds); e != nil { glog.Fatalf("cannot create topology:%s", e) } ms.vg = topology.NewDefaultVolumeGrowth() glog.V(0).Infoln("Volume Size Limit is", volumeSizeLimitMB, "MB") r.HandleFunc("/dir/assign", ms.proxyToLeader(secure(ms.whiteList, ms.dirAssignHandler))) r.HandleFunc("/dir/lookup", ms.proxyToLeader(secure(ms.whiteList, ms.dirLookupHandler))) r.HandleFunc("/dir/join", ms.proxyToLeader(secure(ms.whiteList, ms.dirJoinHandler))) r.HandleFunc("/dir/status", ms.proxyToLeader(secure(ms.whiteList, ms.dirStatusHandler))) r.HandleFunc("/col/delete", ms.proxyToLeader(secure(ms.whiteList, ms.collectionDeleteHandler))) r.HandleFunc("/vol/lookup", ms.proxyToLeader(secure(ms.whiteList, ms.volumeLookupHandler))) r.HandleFunc("/vol/grow", ms.proxyToLeader(secure(ms.whiteList, ms.volumeGrowHandler))) r.HandleFunc("/vol/status", ms.proxyToLeader(secure(ms.whiteList, ms.volumeStatusHandler))) r.HandleFunc("/vol/vacuum", ms.proxyToLeader(secure(ms.whiteList, ms.volumeVacuumHandler))) r.HandleFunc("/submit", secure(ms.whiteList, ms.submitFromMasterServerHandler)) r.HandleFunc("/delete", secure(ms.whiteList, ms.deleteFromMasterServerHandler)) r.HandleFunc("/{fileId}", ms.redirectHandler) r.HandleFunc("/stats/counter", secure(ms.whiteList, statsCounterHandler)) r.HandleFunc("/stats/memory", secure(ms.whiteList, statsMemoryHandler)) ms.Topo.StartRefreshWritableVolumes(garbageThreshold) return ms }
func setup(topologyLayout string) *Topology { var data interface{} err := json.Unmarshal([]byte(topologyLayout), &data) if err != nil { fmt.Println("error:", err) } fmt.Println("data:", data) //need to connect all nodes first before server adding volumes topo, err := NewTopology("weedfs", "/etc/weedfs/weedfs.conf", sequence.NewMemorySequencer(), 32*1024, 5) if err != nil { panic("error: " + err.Error()) } mTopology := data.(map[string]interface{}) for dcKey, dcValue := range mTopology { dc := NewDataCenter(dcKey) dcMap := dcValue.(map[string]interface{}) topo.LinkChildNode(dc) for rackKey, rackValue := range dcMap { rack := NewRack(rackKey) rackMap := rackValue.(map[string]interface{}) dc.LinkChildNode(rack) for serverKey, serverValue := range rackMap { server := NewDataNode(serverKey) serverMap := serverValue.(map[string]interface{}) rack.LinkChildNode(server) for _, v := range serverMap["volumes"].([]interface{}) { m := v.(map[string]interface{}) vi := storage.VolumeInfo{ Id: storage.VolumeId(int64(m["id"].(float64))), Size: uint64(m["size"].(float64)), Version: storage.CurrentVersion} server.AddOrUpdateVolume(vi) } server.UpAdjustMaxVolumeCountDelta(int(serverMap["limit"].(float64))) } } } return topo }