mirror of
https://github.com/seaweedfs/seaweedfs.git
synced 2024-12-05 11:39:02 +08:00
183 lines
6.2 KiB
Go
183 lines
6.2 KiB
Go
package weed_server
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import (
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"context"
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"fmt"
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"github.com/chrislusf/seaweedfs/weed/storage/types"
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"math/rand"
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"net/http"
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"strconv"
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"github.com/chrislusf/seaweedfs/weed/glog"
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"github.com/chrislusf/seaweedfs/weed/operation"
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"github.com/chrislusf/seaweedfs/weed/pb/volume_server_pb"
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"github.com/chrislusf/seaweedfs/weed/storage/backend/memory_map"
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"github.com/chrislusf/seaweedfs/weed/storage/needle"
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"github.com/chrislusf/seaweedfs/weed/storage/super_block"
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"github.com/chrislusf/seaweedfs/weed/topology"
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"github.com/chrislusf/seaweedfs/weed/util"
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)
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func (ms *MasterServer) collectionDeleteHandler(w http.ResponseWriter, r *http.Request) {
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collectionName := r.FormValue("collection")
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collection, ok := ms.Topo.FindCollection(collectionName)
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if !ok {
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writeJsonError(w, r, http.StatusBadRequest, fmt.Errorf("collection %s does not exist", collectionName))
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return
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}
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for _, server := range collection.ListVolumeServers() {
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err := operation.WithVolumeServerClient(server.Url(), ms.grpcDialOption, func(client volume_server_pb.VolumeServerClient) error {
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_, deleteErr := client.DeleteCollection(context.Background(), &volume_server_pb.DeleteCollectionRequest{
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Collection: collection.Name,
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})
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return deleteErr
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})
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if err != nil {
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writeJsonError(w, r, http.StatusInternalServerError, err)
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return
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}
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}
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ms.Topo.DeleteCollection(collectionName)
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w.WriteHeader(http.StatusNoContent)
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return
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}
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func (ms *MasterServer) dirStatusHandler(w http.ResponseWriter, r *http.Request) {
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m := make(map[string]interface{})
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m["Version"] = util.Version()
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m["Topology"] = ms.Topo.ToMap()
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writeJsonQuiet(w, r, http.StatusOK, m)
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}
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func (ms *MasterServer) volumeVacuumHandler(w http.ResponseWriter, r *http.Request) {
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gcString := r.FormValue("garbageThreshold")
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gcThreshold := ms.option.GarbageThreshold
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if gcString != "" {
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var err error
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gcThreshold, err = strconv.ParseFloat(gcString, 32)
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if err != nil {
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glog.V(0).Infof("garbageThreshold %s is not a valid float number: %v", gcString, err)
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writeJsonError(w, r, http.StatusNotAcceptable, fmt.Errorf("garbageThreshold %s is not a valid float number", gcString))
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return
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}
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}
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// glog.Infoln("garbageThreshold =", gcThreshold)
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ms.Topo.Vacuum(ms.grpcDialOption, gcThreshold, ms.preallocateSize)
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ms.dirStatusHandler(w, r)
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}
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func (ms *MasterServer) volumeGrowHandler(w http.ResponseWriter, r *http.Request) {
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count := 0
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option, err := ms.getVolumeGrowOption(r)
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if err != nil {
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writeJsonError(w, r, http.StatusNotAcceptable, err)
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return
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}
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if count, err = strconv.Atoi(r.FormValue("count")); err == nil {
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if ms.Topo.AvailableSpaceFor(option) < int64(count*option.ReplicaPlacement.GetCopyCount()) {
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err = fmt.Errorf("only %d volumes left, not enough for %d", ms.Topo.AvailableSpaceFor(option), count*option.ReplicaPlacement.GetCopyCount())
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} else {
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count, err = ms.vg.GrowByCountAndType(ms.grpcDialOption, count, option, ms.Topo)
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}
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} else {
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err = fmt.Errorf("can not parse parameter count %s", r.FormValue("count"))
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}
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if err != nil {
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writeJsonError(w, r, http.StatusNotAcceptable, err)
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} else {
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writeJsonQuiet(w, r, http.StatusOK, map[string]interface{}{"count": count})
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}
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}
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func (ms *MasterServer) volumeStatusHandler(w http.ResponseWriter, r *http.Request) {
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m := make(map[string]interface{})
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m["Version"] = util.Version()
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m["Volumes"] = ms.Topo.ToVolumeMap()
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writeJsonQuiet(w, r, http.StatusOK, m)
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}
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func (ms *MasterServer) redirectHandler(w http.ResponseWriter, r *http.Request) {
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vid, _, _, _, _ := parseURLPath(r.URL.Path)
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collection := r.FormValue("collection")
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location := ms.findVolumeLocation(collection, vid)
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if location.Error == "" {
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loc := location.Locations[rand.Intn(len(location.Locations))]
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var url string
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if r.URL.RawQuery != "" {
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url = util.NormalizeUrl(loc.PublicUrl) + r.URL.Path + "?" + r.URL.RawQuery
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} else {
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url = util.NormalizeUrl(loc.PublicUrl) + r.URL.Path
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}
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http.Redirect(w, r, url, http.StatusPermanentRedirect)
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} else {
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writeJsonError(w, r, http.StatusNotFound, fmt.Errorf("volume id %s not found: %s", vid, location.Error))
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}
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}
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func (ms *MasterServer) selfUrl(r *http.Request) string {
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if r.Host != "" {
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return r.Host
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}
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return "localhost:" + strconv.Itoa(ms.option.Port)
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}
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func (ms *MasterServer) submitFromMasterServerHandler(w http.ResponseWriter, r *http.Request) {
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if ms.Topo.IsLeader() {
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submitForClientHandler(w, r, func() string { return ms.selfUrl(r) }, ms.grpcDialOption)
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} else {
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masterUrl, err := ms.Topo.Leader()
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if err != nil {
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writeJsonError(w, r, http.StatusInternalServerError, err)
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} else {
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submitForClientHandler(w, r, func() string { return masterUrl }, ms.grpcDialOption)
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}
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}
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}
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func (ms *MasterServer) HasWritableVolume(option *topology.VolumeGrowOption) bool {
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vl := ms.Topo.GetVolumeLayout(option.Collection, option.ReplicaPlacement, option.Ttl, option.DiskType)
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return vl.GetActiveVolumeCount(option) > 0
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}
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func (ms *MasterServer) getVolumeGrowOption(r *http.Request) (*topology.VolumeGrowOption, error) {
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replicationString := r.FormValue("replication")
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if replicationString == "" {
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replicationString = ms.option.DefaultReplicaPlacement
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}
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replicaPlacement, err := super_block.NewReplicaPlacementFromString(replicationString)
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if err != nil {
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return nil, err
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}
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ttl, err := needle.ReadTTL(r.FormValue("ttl"))
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if err != nil {
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return nil, err
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}
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memoryMapMaxSizeMb, err := memory_map.ReadMemoryMapMaxSizeMb(r.FormValue("memoryMapMaxSizeMb"))
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if err != nil {
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return nil, err
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}
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diskType := types.ToDiskType(r.FormValue("disk"))
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preallocate := ms.preallocateSize
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if r.FormValue("preallocate") != "" {
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preallocate, err = strconv.ParseInt(r.FormValue("preallocate"), 10, 64)
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if err != nil {
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return nil, fmt.Errorf("Failed to parse int64 preallocate = %s: %v", r.FormValue("preallocate"), err)
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}
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}
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volumeGrowOption := &topology.VolumeGrowOption{
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Collection: r.FormValue("collection"),
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ReplicaPlacement: replicaPlacement,
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Ttl: ttl,
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DiskType: diskType,
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Prealloacte: preallocate,
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DataCenter: r.FormValue("dataCenter"),
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Rack: r.FormValue("rack"),
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DataNode: r.FormValue("dataNode"),
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MemoryMapMaxSizeMb: memoryMapMaxSizeMb,
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}
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return volumeGrowOption, nil
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}
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