package weed_server import ( "context" "fmt" "github.com/chrislusf/raft" "github.com/chrislusf/seaweedfs/weed/pb/master_pb" "github.com/chrislusf/seaweedfs/weed/security" "github.com/chrislusf/seaweedfs/weed/storage" "github.com/chrislusf/seaweedfs/weed/topology" ) func (ms *MasterServer) LookupVolume(ctx context.Context, req *master_pb.LookupVolumeRequest) (*master_pb.LookupVolumeResponse, error) { if !ms.Topo.IsLeader() { return nil, raft.NotLeaderError } resp := &master_pb.LookupVolumeResponse{} volumeLocations := ms.lookupVolumeId(req.VolumeIds, req.Collection) for _, result := range volumeLocations { var locations []*master_pb.Location for _, loc := range result.Locations { locations = append(locations, &master_pb.Location{ Url: loc.Url, PublicUrl: loc.PublicUrl, }) } resp.VolumeIdLocations = append(resp.VolumeIdLocations, &master_pb.LookupVolumeResponse_VolumeIdLocation{ VolumeId: result.VolumeId, Locations: locations, Error: result.Error, }) } return resp, nil } func (ms *MasterServer) Assign(ctx context.Context, req *master_pb.AssignRequest) (*master_pb.AssignResponse, error) { if !ms.Topo.IsLeader() { return nil, raft.NotLeaderError } if req.Count == 0 { req.Count = 1 } if req.Replication == "" { req.Replication = ms.defaultReplicaPlacement } replicaPlacement, err := storage.NewReplicaPlacementFromString(req.Replication) if err != nil { return nil, err } ttl, err := storage.ReadTTL(req.Ttl) if err != nil { return nil, err } option := &topology.VolumeGrowOption{ Collection: req.Collection, ReplicaPlacement: replicaPlacement, Ttl: ttl, Prealloacte: ms.preallocate, DataCenter: req.DataCenter, Rack: req.Rack, DataNode: req.DataNode, } if !ms.Topo.HasWritableVolume(option) { if ms.Topo.FreeSpace() <= 0 { return nil, fmt.Errorf("No free volumes left!") } ms.vgLock.Lock() if !ms.Topo.HasWritableVolume(option) { if _, err = ms.vg.AutomaticGrowByType(option, ms.grpcDialOpiton, ms.Topo); err != nil { ms.vgLock.Unlock() return nil, fmt.Errorf("Cannot grow volume group! %v", err) } } ms.vgLock.Unlock() } fid, count, dn, err := ms.Topo.PickForWrite(req.Count, option) if err != nil { return nil, fmt.Errorf("%v", err) } return &master_pb.AssignResponse{ Fid: fid, Url: dn.Url(), PublicUrl: dn.PublicUrl, Count: count, Auth: string(security.GenJwt(ms.guard.SigningKey, fid)), }, nil } func (ms *MasterServer) Statistics(ctx context.Context, req *master_pb.StatisticsRequest) (*master_pb.StatisticsResponse, error) { if !ms.Topo.IsLeader() { return nil, raft.NotLeaderError } if req.Replication == "" { req.Replication = ms.defaultReplicaPlacement } replicaPlacement, err := storage.NewReplicaPlacementFromString(req.Replication) if err != nil { return nil, err } ttl, err := storage.ReadTTL(req.Ttl) if err != nil { return nil, err } volumeLayout := ms.Topo.GetVolumeLayout(req.Collection, replicaPlacement, ttl) stats := volumeLayout.Stats() resp := &master_pb.StatisticsResponse{ TotalSize: stats.TotalSize, UsedSize: stats.UsedSize, FileCount: stats.FileCount, } return resp, nil }