package weed_server import ( "context" "fmt" "github.com/chrislusf/seaweedfs/weed/pb" "math/rand" "net/http" "strconv" "github.com/chrislusf/seaweedfs/weed/glog" "github.com/chrislusf/seaweedfs/weed/operation" "github.com/chrislusf/seaweedfs/weed/pb/volume_server_pb" "github.com/chrislusf/seaweedfs/weed/storage/backend/memory_map" "github.com/chrislusf/seaweedfs/weed/storage/needle" "github.com/chrislusf/seaweedfs/weed/storage/super_block" "github.com/chrislusf/seaweedfs/weed/storage/types" "github.com/chrislusf/seaweedfs/weed/topology" "github.com/chrislusf/seaweedfs/weed/util" ) func (ms *MasterServer) collectionDeleteHandler(w http.ResponseWriter, r *http.Request) { collectionName := r.FormValue("collection") collection, ok := ms.Topo.FindCollection(collectionName) if !ok { writeJsonError(w, r, http.StatusBadRequest, fmt.Errorf("collection %s does not exist", collectionName)) return } for _, server := range collection.ListVolumeServers() { err := operation.WithVolumeServerClient(server.ServerAddress(), ms.grpcDialOption, func(client volume_server_pb.VolumeServerClient) error { _, deleteErr := client.DeleteCollection(context.Background(), &volume_server_pb.DeleteCollectionRequest{ Collection: collection.Name, }) return deleteErr }) if err != nil { writeJsonError(w, r, http.StatusInternalServerError, err) return } } ms.Topo.DeleteCollection(collectionName) w.WriteHeader(http.StatusNoContent) return } func (ms *MasterServer) dirStatusHandler(w http.ResponseWriter, r *http.Request) { m := make(map[string]interface{}) m["Version"] = util.Version() m["Topology"] = ms.Topo.ToMap() writeJsonQuiet(w, r, http.StatusOK, m) } func (ms *MasterServer) volumeVacuumHandler(w http.ResponseWriter, r *http.Request) { gcString := r.FormValue("garbageThreshold") gcThreshold := ms.option.GarbageThreshold if gcString != "" { var err error gcThreshold, err = strconv.ParseFloat(gcString, 32) if err != nil { glog.V(0).Infof("garbageThreshold %s is not a valid float number: %v", gcString, err) writeJsonError(w, r, http.StatusNotAcceptable, fmt.Errorf("garbageThreshold %s is not a valid float number", gcString)) return } } // glog.Infoln("garbageThreshold =", gcThreshold) ms.Topo.Vacuum(ms.grpcDialOption, gcThreshold, ms.preallocateSize) ms.dirStatusHandler(w, r) } func (ms *MasterServer) volumeGrowHandler(w http.ResponseWriter, r *http.Request) { count := 0 option, err := ms.getVolumeGrowOption(r) if err != nil { writeJsonError(w, r, http.StatusNotAcceptable, err) return } glog.V(0).Infof("volumeGrowHandler received %v from %v", option.String(), r.RemoteAddr) if count, err = strconv.Atoi(r.FormValue("count")); err == nil { if ms.Topo.AvailableSpaceFor(option) < int64(count*option.ReplicaPlacement.GetCopyCount()) { err = fmt.Errorf("only %d volumes left, not enough for %d", ms.Topo.AvailableSpaceFor(option), count*option.ReplicaPlacement.GetCopyCount()) } else { count, err = ms.vg.GrowByCountAndType(ms.grpcDialOption, count, option, ms.Topo) } } else { err = fmt.Errorf("can not parse parameter count %s", r.FormValue("count")) } if err != nil { writeJsonError(w, r, http.StatusNotAcceptable, err) } else { writeJsonQuiet(w, r, http.StatusOK, map[string]interface{}{"count": count}) } } func (ms *MasterServer) volumeStatusHandler(w http.ResponseWriter, r *http.Request) { m := make(map[string]interface{}) m["Version"] = util.Version() m["Volumes"] = ms.Topo.ToVolumeMap() writeJsonQuiet(w, r, http.StatusOK, m) } func (ms *MasterServer) redirectHandler(w http.ResponseWriter, r *http.Request) { vid, _, _, _, _ := parseURLPath(r.URL.Path) collection := r.FormValue("collection") location := ms.findVolumeLocation(collection, vid) if location.Error == "" { loc := location.Locations[rand.Intn(len(location.Locations))] var url string if r.URL.RawQuery != "" { url = util.NormalizeUrl(loc.PublicUrl) + r.URL.Path + "?" + r.URL.RawQuery } else { url = util.NormalizeUrl(loc.PublicUrl) + r.URL.Path } http.Redirect(w, r, url, http.StatusPermanentRedirect) } else { writeJsonError(w, r, http.StatusNotFound, fmt.Errorf("volume id %s not found: %s", vid, location.Error)) } } func (ms *MasterServer) submitFromMasterServerHandler(w http.ResponseWriter, r *http.Request) { if ms.Topo.IsLeader() { submitForClientHandler(w, r, func() pb.ServerAddress { return ms.option.Master }, ms.grpcDialOption) } else { masterUrl, err := ms.Topo.Leader() if err != nil { writeJsonError(w, r, http.StatusInternalServerError, err) } else { submitForClientHandler(w, r, func() pb.ServerAddress { return masterUrl }, ms.grpcDialOption) } } } func (ms *MasterServer) shouldVolumeGrow(option *topology.VolumeGrowOption) bool { vl := ms.Topo.GetVolumeLayout(option.Collection, option.ReplicaPlacement, option.Ttl, option.DiskType) active, high := vl.GetActiveVolumeCount(option) //glog.V(0).Infof("active volume: %d, high usage volume: %d\n", active, high) return active <= high } func (ms *MasterServer) getVolumeGrowOption(r *http.Request) (*topology.VolumeGrowOption, error) { replicationString := r.FormValue("replication") if replicationString == "" { replicationString = ms.option.DefaultReplicaPlacement } replicaPlacement, err := super_block.NewReplicaPlacementFromString(replicationString) if err != nil { return nil, err } ttl, err := needle.ReadTTL(r.FormValue("ttl")) if err != nil { return nil, err } memoryMapMaxSizeMb, err := memory_map.ReadMemoryMapMaxSizeMb(r.FormValue("memoryMapMaxSizeMb")) if err != nil { return nil, err } diskType := types.ToDiskType(r.FormValue("disk")) preallocate := ms.preallocateSize if r.FormValue("preallocate") != "" { preallocate, err = strconv.ParseInt(r.FormValue("preallocate"), 10, 64) if err != nil { return nil, fmt.Errorf("Failed to parse int64 preallocate = %s: %v", r.FormValue("preallocate"), err) } } volumeGrowOption := &topology.VolumeGrowOption{ Collection: r.FormValue("collection"), ReplicaPlacement: replicaPlacement, Ttl: ttl, DiskType: diskType, Preallocate: preallocate, DataCenter: r.FormValue("dataCenter"), Rack: r.FormValue("rack"), DataNode: r.FormValue("dataNode"), MemoryMapMaxSizeMb: memoryMapMaxSizeMb, } return volumeGrowOption, nil }