mirror of
https://github.com/seaweedfs/seaweedfs.git
synced 2024-12-05 11:39:02 +08:00
253 lines
6.3 KiB
Go
253 lines
6.3 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/raft"
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"reflect"
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"sync"
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"time"
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"github.com/chrislusf/seaweedfs/weed/glog"
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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/needle"
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"github.com/chrislusf/seaweedfs/weed/storage/super_block"
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"github.com/chrislusf/seaweedfs/weed/storage/types"
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"github.com/chrislusf/seaweedfs/weed/topology"
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)
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func (ms *MasterServer) ProcessGrowRequest() {
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go func() {
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filter := sync.Map{}
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for {
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req, ok := <-ms.vgCh
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if !ok {
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break
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}
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if !ms.Topo.IsLeader() {
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//discard buffered requests
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time.Sleep(time.Second * 1)
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continue
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}
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// filter out identical requests being processed
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found := false
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filter.Range(func(k, v interface{}) bool {
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if reflect.DeepEqual(k, req) {
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found = true
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}
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return !found
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})
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// not atomic but it's okay
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if !found && ms.shouldVolumeGrow(req.Option) {
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filter.Store(req, nil)
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// we have lock called inside vg
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go func() {
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glog.V(1).Infoln("starting automatic volume grow")
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start := time.Now()
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_, err := ms.vg.AutomaticGrowByType(req.Option, ms.grpcDialOption, ms.Topo, req.Count)
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glog.V(1).Infoln("finished automatic volume grow, cost ", time.Now().Sub(start))
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if req.ErrCh != nil {
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req.ErrCh <- err
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close(req.ErrCh)
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}
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filter.Delete(req)
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}()
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} else {
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glog.V(4).Infoln("discard volume grow request")
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}
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}
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}()
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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.option.DefaultReplicaPlacement
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}
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replicaPlacement, err := super_block.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 := needle.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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diskType := types.ToDiskType(req.DiskType)
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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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DiskType: diskType,
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Preallocate: ms.preallocateSize,
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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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MemoryMapMaxSizeMb: req.MemoryMapMaxSizeMb,
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}
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if ms.shouldVolumeGrow(option) {
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if ms.Topo.AvailableSpaceFor(option) <= 0 {
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return nil, fmt.Errorf("no free volumes left for " + option.String())
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}
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ms.vgCh <- &topology.VolumeGrowRequest{
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Option: option,
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Count: int(req.WritableVolumeCount),
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}
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}
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var (
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lastErr error
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maxTimeout = time.Second * 10
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startTime = time.Now()
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)
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for time.Now().Sub(startTime) < maxTimeout {
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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 &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, ms.guard.ExpiresAfterSec, fid)),
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}, nil
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}
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//glog.V(4).Infoln("waiting for volume growing...")
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lastErr = err
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time.Sleep(200 * time.Millisecond)
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}
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return nil, lastErr
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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.option.DefaultReplicaPlacement
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}
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replicaPlacement, err := super_block.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 := needle.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, types.ToDiskType(req.DiskType))
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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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VolumeSizeLimitMb: uint64(ms.option.VolumeSizeLimitMB),
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}
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return resp, nil
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}
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func (ms *MasterServer) LookupEcVolume(ctx context.Context, req *master_pb.LookupEcVolumeRequest) (*master_pb.LookupEcVolumeResponse, 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.LookupEcVolumeResponse{}
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ecLocations, found := ms.Topo.LookupEcShards(needle.VolumeId(req.VolumeId))
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if !found {
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return resp, fmt.Errorf("ec volume %d not found", req.VolumeId)
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}
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resp.VolumeId = req.VolumeId
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for shardId, shardLocations := range ecLocations.Locations {
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var locations []*master_pb.Location
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for _, dn := range shardLocations {
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locations = append(locations, &master_pb.Location{
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Url: string(dn.Id()),
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PublicUrl: dn.PublicUrl,
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})
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}
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resp.ShardIdLocations = append(resp.ShardIdLocations, &master_pb.LookupEcVolumeResponse_EcShardIdLocation{
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ShardId: uint32(shardId),
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Locations: locations,
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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) VacuumVolume(ctx context.Context, req *master_pb.VacuumVolumeRequest) (*master_pb.VacuumVolumeResponse, 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.VacuumVolumeResponse{}
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ms.Topo.Vacuum(ms.grpcDialOption, float64(req.GarbageThreshold), ms.preallocateSize)
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return resp, nil
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}
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