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