seaweedfs/weed/storage/store_ec_delete.go
chrislu 9f9ef1340c use streaming mode for long poll grpc calls
streaming mode would create separate grpc connections for each call.
this is to ensure the long poll connections are properly closed.
2021-12-26 00:15:03 -08:00

107 lines
3.2 KiB
Go

package storage
import (
"context"
"fmt"
"github.com/chrislusf/seaweedfs/weed/pb"
"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/erasure_coding"
"github.com/chrislusf/seaweedfs/weed/storage/needle"
"github.com/chrislusf/seaweedfs/weed/storage/types"
)
func (s *Store) DeleteEcShardNeedle(ecVolume *erasure_coding.EcVolume, n *needle.Needle, cookie types.Cookie) (int64, error) {
count, err := s.ReadEcShardNeedle(ecVolume.VolumeId, n, nil)
if err != nil {
return 0, err
}
if cookie != n.Cookie {
return 0, fmt.Errorf("unexpected cookie %x", cookie)
}
if err = s.doDeleteNeedleFromAtLeastOneRemoteEcShards(ecVolume, n.Id); err != nil {
return 0, err
}
return int64(count), nil
}
func (s *Store) doDeleteNeedleFromAtLeastOneRemoteEcShards(ecVolume *erasure_coding.EcVolume, needleId types.NeedleId) error {
_, _, intervals, err := ecVolume.LocateEcShardNeedle(needleId, ecVolume.Version)
if len(intervals) == 0 {
return erasure_coding.NotFoundError
}
shardId, _ := intervals[0].ToShardIdAndOffset(erasure_coding.ErasureCodingLargeBlockSize, erasure_coding.ErasureCodingSmallBlockSize)
hasDeletionSuccess := false
err = s.doDeleteNeedleFromRemoteEcShardServers(shardId, ecVolume, needleId)
if err == nil {
hasDeletionSuccess = true
}
for shardId = erasure_coding.DataShardsCount; shardId < erasure_coding.TotalShardsCount; shardId++ {
if parityDeletionError := s.doDeleteNeedleFromRemoteEcShardServers(shardId, ecVolume, needleId); parityDeletionError == nil {
hasDeletionSuccess = true
}
}
if hasDeletionSuccess {
return nil
}
return err
}
func (s *Store) doDeleteNeedleFromRemoteEcShardServers(shardId erasure_coding.ShardId, ecVolume *erasure_coding.EcVolume, needleId types.NeedleId) error {
ecVolume.ShardLocationsLock.RLock()
sourceDataNodes, hasShardLocations := ecVolume.ShardLocations[shardId]
ecVolume.ShardLocationsLock.RUnlock()
if !hasShardLocations {
return fmt.Errorf("ec shard %d.%d not located", ecVolume.VolumeId, shardId)
}
for _, sourceDataNode := range sourceDataNodes {
glog.V(4).Infof("delete from remote ec shard %d.%d from %s", ecVolume.VolumeId, shardId, sourceDataNode)
err := s.doDeleteNeedleFromRemoteEcShard(sourceDataNode, ecVolume.VolumeId, ecVolume.Collection, ecVolume.Version, needleId)
if err != nil {
return err
}
glog.V(1).Infof("delete from remote ec shard %d.%d from %s: %v", ecVolume.VolumeId, shardId, sourceDataNode, err)
}
return nil
}
func (s *Store) doDeleteNeedleFromRemoteEcShard(sourceDataNode pb.ServerAddress, vid needle.VolumeId, collection string, version needle.Version, needleId types.NeedleId) error {
return operation.WithVolumeServerClient(false, sourceDataNode, s.grpcDialOption, func(client volume_server_pb.VolumeServerClient) error {
// copy data slice
_, err := client.VolumeEcBlobDelete(context.Background(), &volume_server_pb.VolumeEcBlobDeleteRequest{
VolumeId: uint32(vid),
Collection: collection,
FileKey: uint64(needleId),
Version: uint32(version),
})
if err != nil {
return fmt.Errorf("failed to delete from ec shard %d on %s: %v", vid, sourceDataNode, err)
}
return nil
})
}