ec deletion works

8 files changed, 189 insertions, 147 deletions

diff --git a/weed/pb/volume_server.proto b/weed/pb/volume_server.proto
index 4531055bf..1b876f82c 100644
--- a/weed/pb/volume_server.proto
+++ b/weed/pb/volume_server.proto
@@ -264,9 +264,11 @@ message VolumeEcShardReadRequest {
     uint32 shard_id = 2;
     int64 offset = 3;
     int64 size = 4;
+    uint64 file_key = 5;
 }
 message VolumeEcShardReadResponse {
     bytes data = 1;
+    bool is_deleted = 2;
 }
 
 message VolumeEcBlobDeleteRequest {
diff --git a/weed/pb/volume_server_pb/volume_server.pb.go b/weed/pb/volume_server_pb/volume_server.pb.go
index 93d9778b7..8d55a00d9 100644
--- a/weed/pb/volume_server_pb/volume_server.pb.go
+++ b/weed/pb/volume_server_pb/volume_server.pb.go
@@ -1051,6 +1051,7 @@ type VolumeEcShardReadRequest struct {
 	ShardId  uint32 `protobuf:"varint,2,opt,name=shard_id,json=shardId" json:"shard_id,omitempty"`
 	Offset   int64  `protobuf:"varint,3,opt,name=offset" json:"offset,omitempty"`
 	Size     int64  `protobuf:"varint,4,opt,name=size" json:"size,omitempty"`
+	FileKey  uint64 `protobuf:"varint,5,opt,name=file_key,json=fileKey" json:"file_key,omitempty"`
 }
 
 func (m *VolumeEcShardReadRequest) Reset()                    { *m = VolumeEcShardReadRequest{} }
@@ -1086,8 +1087,16 @@ func (m *VolumeEcShardReadRequest) GetSize() int64 {
 	return 0
 }
 
+func (m *VolumeEcShardReadRequest) GetFileKey() uint64 {
+	if m != nil {
+		return m.FileKey
+	}
+	return 0
+}
+
 type VolumeEcShardReadResponse struct {
-	Data []byte `protobuf:"bytes,1,opt,name=data,proto3" json:"data,omitempty"`
+	Data      []byte `protobuf:"bytes,1,opt,name=data,proto3" json:"data,omitempty"`
+	IsDeleted bool   `protobuf:"varint,2,opt,name=is_deleted,json=isDeleted" json:"is_deleted,omitempty"`
 }
 
 func (m *VolumeEcShardReadResponse) Reset()                    { *m = VolumeEcShardReadResponse{} }
@@ -1102,6 +1111,13 @@ func (m *VolumeEcShardReadResponse) GetData() []byte {
 	return nil
 }
 
+func (m *VolumeEcShardReadResponse) GetIsDeleted() bool {
+	if m != nil {
+		return m.IsDeleted
+	}
+	return false
+}
+
 type VolumeEcBlobDeleteRequest struct {
 	VolumeId   uint32 `protobuf:"varint,1,opt,name=volume_id,json=volumeId" json:"volume_id,omitempty"`
 	Collection string `protobuf:"bytes,2,opt,name=collection" json:"collection,omitempty"`
@@ -2381,122 +2397,124 @@ var _VolumeServer_serviceDesc = grpc.ServiceDesc{
 func init() { proto.RegisterFile("volume_server.proto", fileDescriptor0) }
 
 var fileDescriptor0 = []byte{
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+	// 1890 bytes of a gzipped FileDescriptorProto
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+	0x11, 0xb8, 0x97, 0x5f, 0xaf, 0xa0, 0x8f, 0xca, 0xf4, 0x95, 0xcb, 0x22, 0x7d, 0x77, 0x36, 0x62,
+	0xf6, 0x4e, 0xc5, 0x95, 0x4b, 0xd5, 0x9d, 0x6a, 0xf6, 0x39, 0x55, 0x77, 0xaa, 0xdb, 0xe0, 0x18,
+	0x73, 0xe8, 0xf7, 0xc9, 0x1c, 0x5f, 0x58, 0x45, 0xa0, 0xfd, 0x3a, 0x36, 0xd5, 0xbb, 0x10, 0xfd,
+	0xa0, 0x31, 0x7e, 0x22, 0xfb, 0x89, 0xc6, 0x63, 0x3d, 0xb3, 0x91, 0xa8, 0x8a, 0xf5, 0xf2, 0x8e,
+	0xa3, 0x2a, 0xd6, 0xab, 0xd6, 0x1a, 0x73, 0xe8, 0x0c, 0x16, 0x72, 0x3b, 0x0a, 0xf4, 0x61, 0x1d,
+	0x65, 0xbe, 0x69, 0xd2, 0x3f, 0x9a, 0x89, 0x97, 0xca, 0xb0, 0x92, 0xec, 0xa5, 0xd2, 0x55, 0xad,
+	0x72, 0xf9, 0x7c, 0xf5, 0xe1, 0x2c, 0xb4, 0x54, 0xc0, 0xef, 0x00, 0x26, 0x2b, 0x05, 0xf4, 0x7e,
+	0x1d, 0x5d, 0xf6, 0x29, 0x3e, 0x98, 0x8e, 0x94, 0xb2, 0xfe, 0x0e, 0x56, 0xaa, 0x2a, 0x3d, 0xaa,
+	0x88, 0xc2, 0x29, 0xed, 0x84, 0xbe, 0xdf, 0x14, 0x3d, 0x15, 0xfc, 0x15, 0x74, 0x93, 0x75, 0x00,
+	0x7a, 0xaf, 0x4c, 0x5d, 0x58, 0x80, 0xe8, 0xc6, 0x34, 0x94, 0x8c, 0x37, 0x8d, 0x92, 0xc0, 0x99,
+	0xcc, 0xe9, 0xf5, 0x81, 0x53, 0xda, 0x28, 0xd4, 0x07, 0x4e, 0x79, 0xec, 0x17, 0xe2, 0xde, 0x24,
+	0xcb, 0x9e, 0xec, 0x58, 0x5b, 0x99, 0x64, 0xeb, 0xa6, 0xf6, 0xca, 0x24, 0x5b, 0x3f, 0x29, 0xcf,
+	0xa1, 0x3f, 0xc0, 0x5a, 0xf5, 0x34, 0x8b, 0x6a, 0xc3, 0xaf, 0x66, 0xaa, 0xd6, 0x9f, 0x34, 0x27,
+	0x48, 0xc5, 0xbf, 0x4b, 0x92, 0x45, 0x61, 0x9a, 0xad, 0x4f, 0x16, 0xd5, 0x33, 0xb5, 0x7e, 0xd0,
+	0x18, 0x3f, 0x57, 0xd2, 0x4a, 0x63, 0x63, 0xbd, 0xb5, 0x2b, 0x26, 0xe4, 0x7a, 0x6b, 0x57, 0x4e,
+	0xa2, 0x22, 0x3e, 0xaa, 0x46, 0xc2, 0xaa, 0xf8, 0x98, 0x32, 0xb3, 0xea, 0xfb, 0x4d, 0xd1, 0x73,
+	0xb5, 0xb4, 0x3c, 0xf3, 0xa1, 0x99, 0xfa, 0xe7, 0xd2, 0xe4, 0x27, 0x0d, 0xb1, 0xeb, 0x5f, 0x37,
+	0x49, 0x9b, 0x33, 0x2f, 0x50, 0x48, 0x9f, 0x07, 0x8d, 0xf1, 0x53, 0xd9, 0x61, 0xb2, 0xe8, 0xcd,
+	0xcc, 0x6b, 0x68, 0x6f, 0x06, 0x9f, 0xcc, 0xbc, 0xa9, 0x3f, 0x6e, 0x84, 0x5b, 0x15, 0xbd, 0xd9,
+	0x09, 0x6a, 0x9a, 0x3f, 0x95, 0xc6, 0xbe, 0x69, 0xfe, 0x54, 0x31, 0x94, 0xcd, 0x9d, 0xdd, 0x15,
+	0xff, 0xba, 0x7e, 0xfa, 0xdf, 0x00, 0x00, 0x00, 0xff, 0xff, 0x5e, 0xae, 0x84, 0xe6, 0x8c, 0x1d,
+	0x00, 0x00,
 }
diff --git a/weed/server/volume_grpc_erasure_coding.go b/weed/server/volume_grpc_erasure_coding.go
index 58eefc6dc..8140a06f6 100644
--- a/weed/server/volume_grpc_erasure_coding.go
+++ b/weed/server/volume_grpc_erasure_coding.go
@@ -234,6 +234,15 @@ func (vs *VolumeServer) VolumeEcShardRead(req *volume_server_pb.VolumeEcShardRea
 		return fmt.Errorf("not found ec shard %d.%d", req.VolumeId, req.ShardId)
 	}
 
+	if req.FileKey != 0 {
+		_, size, _ := ecVolume.FindNeedleFromEcx(types.Uint64ToNeedleId(req.FileKey))
+		if size == types.TombstoneFileSize {
+			return stream.Send(&volume_server_pb.VolumeEcShardReadResponse{
+				IsDeleted: true,
+			})
+		}
+	}
+
 	bufSize := req.Size
 	if bufSize > BufferSizeLimit {
 		bufSize = BufferSizeLimit
diff --git a/weed/storage/erasure_coding/ec_volume.go b/weed/storage/erasure_coding/ec_volume.go
index a83a44f27..bcae164ca 100644
--- a/weed/storage/erasure_coding/ec_volume.go
+++ b/weed/storage/erasure_coding/ec_volume.go
@@ -172,9 +172,9 @@ func (ev *EcVolume) ToVolumeEcShardInformationMessage() (messages []*master_pb.V
 func (ev *EcVolume) LocateEcShardNeedle(needleId types.NeedleId, version needle.Version) (offset types.Offset, size uint32, intervals []Interval, err error) {
 
 	// find the needle from ecx file
-	offset, size, err = ev.findNeedleFromEcx(needleId)
+	offset, size, err = ev.FindNeedleFromEcx(needleId)
 	if err != nil {
-		return types.Offset{}, 0, nil, fmt.Errorf("findNeedleFromEcx: %v", err)
+		return types.Offset{}, 0, nil, fmt.Errorf("FindNeedleFromEcx: %v", err)
 	}
 
 	shard := ev.Shards[0]
@@ -185,7 +185,7 @@ func (ev *EcVolume) LocateEcShardNeedle(needleId types.NeedleId, version needle.
 	return
 }
 
-func (ev *EcVolume) findNeedleFromEcx(needleId types.NeedleId) (offset types.Offset, size uint32, err error) {
+func (ev *EcVolume) FindNeedleFromEcx(needleId types.NeedleId) (offset types.Offset, size uint32, err error) {
 	return searchNeedleFromEcx(ev.ecxFile, ev.ecxFileSize, needleId, nil)
 }
 
diff --git a/weed/storage/needle/needle.go b/weed/storage/needle/needle.go
index 14265ec78..2f03ba87b 100644
--- a/weed/storage/needle/needle.go
+++ b/weed/storage/needle/needle.go
@@ -158,7 +158,7 @@ func (n *Needle) ParsePath(fid string) (err error) {
 	}
 	if delta != "" {
 		if d, e := strconv.ParseUint(delta, 10, 64); e == nil {
-			n.Id += NeedleId(d)
+			n.Id += Uint64ToNeedleId(d)
 		} else {
 			return e
 		}
diff --git a/weed/storage/needle_map_leveldb.go b/weed/storage/needle_map_leveldb.go
index c2c6fcf19..aa726e733 100644
--- a/weed/storage/needle_map_leveldb.go
+++ b/weed/storage/needle_map_leveldb.go
@@ -85,7 +85,7 @@ func (m *LevelDbNeedleMap) Get(key NeedleId) (element *needle_map.NeedleValue, o
 	}
 	offset := BytesToOffset(data[0:OffsetSize])
 	size := util.BytesToUint32(data[OffsetSize : OffsetSize+SizeSize])
-	return &needle_map.NeedleValue{Key: NeedleId(key), Offset: offset, Size: size}, true
+	return &needle_map.NeedleValue{Key: key, Offset: offset, Size: size}, true
 }
 
 func (m *LevelDbNeedleMap) Put(key NeedleId, offset Offset, size uint32) error {
diff --git a/weed/storage/needle_map_metric.go b/weed/storage/needle_map_metric.go
index f7372105f..6448b053b 100644
--- a/weed/storage/needle_map_metric.go
+++ b/weed/storage/needle_map_metric.go
@@ -53,7 +53,7 @@ func (mm *mapMetric) DeletedCount() int {
 }
 func (mm *mapMetric) MaxFileKey() NeedleId {
 	t := uint64(mm.MaximumFileKey)
-	return NeedleId(t)
+	return Uint64ToNeedleId(t)
 }
 func (mm *mapMetric) MaybeSetMaxFileKey(key NeedleId) {
 	if key > mm.MaxFileKey() {
diff --git a/weed/storage/store_ec.go b/weed/storage/store_ec.go
index 307c043ed..b7c84764c 100644
--- a/weed/storage/store_ec.go
+++ b/weed/storage/store_ec.go
@@ -135,15 +135,18 @@ func (s *Store) ReadEcShardNeedle(ctx context.Context, vid needle.VolumeId, n *n
 				return 0, fmt.Errorf("entry %s is deleted", n.Id)
 			}
 
-			glog.V(4).Infof("read ec volume %d offset %d size %d intervals:%+v", vid, offset.ToAcutalOffset(), size, intervals)
+			glog.V(3).Infof("read ec volume %d offset %d size %d intervals:%+v", vid, offset.ToAcutalOffset(), size, intervals)
 
 			if len(intervals) > 1 {
-				glog.V(4).Infof("ReadEcShardNeedle needle id %s intervals:%+v", n.String(), intervals)
+				glog.V(3).Infof("ReadEcShardNeedle needle id %s intervals:%+v", n.String(), intervals)
 			}
-			bytes, err := s.readEcShardIntervals(ctx, vid, localEcVolume, intervals)
+			bytes, isDeleted, err := s.readEcShardIntervals(ctx, vid, n.Id, localEcVolume, intervals)
 			if err != nil {
 				return 0, fmt.Errorf("ReadEcShardIntervals: %v", err)
 			}
+			if isDeleted {
+				return 0, fmt.Errorf("ec entry %s is deleted", n.Id)
+			}
 
 			err = n.ReadBytes(bytes, offset.ToAcutalOffset(), size, version)
 			if err != nil {
@@ -165,23 +168,26 @@ func (s *Store) readEcVolumeVersion(ctx context.Context, vid needle.VolumeId, ec
 		IsLargeBlock:        true, // it could be large block, but ok in this place
 		LargeBlockRowsCount: 0,
 	}
-	data, err := s.readEcShardIntervals(ctx, vid, ecVolume, []erasure_coding.Interval{interval})
+	data, _, err := s.readEcShardIntervals(ctx, vid, 0, ecVolume, []erasure_coding.Interval{interval})
 	if err == nil {
 		ecVolume.Version = needle.Version(data[0])
 	}
 	return
 }
 
-func (s *Store) readEcShardIntervals(ctx context.Context, vid needle.VolumeId, ecVolume *erasure_coding.EcVolume, intervals []erasure_coding.Interval) (data []byte, err error) {
+func (s *Store) readEcShardIntervals(ctx context.Context, vid needle.VolumeId, needleId types.NeedleId, ecVolume *erasure_coding.EcVolume, intervals []erasure_coding.Interval) (data []byte, is_deleted bool, err error) {
 
 	if err = s.cachedLookupEcShardLocations(ctx, ecVolume); err != nil {
-		return nil, fmt.Errorf("failed to locate shard via master grpc %s: %v", s.MasterAddress, err)
+		return nil, false, fmt.Errorf("failed to locate shard via master grpc %s: %v", s.MasterAddress, err)
 	}
 
 	for i, interval := range intervals {
-		if d, e := s.readOneEcShardInterval(ctx, ecVolume, interval); e != nil {
-			return nil, e
+		if d, isDeleted, e := s.readOneEcShardInterval(ctx, needleId, ecVolume, interval); e != nil {
+			return nil, isDeleted, e
 		} else {
+			if isDeleted {
+				is_deleted = true
+			}
 			if i == 0 {
 				data = d
 			} else {
@@ -192,7 +198,7 @@ func (s *Store) readEcShardIntervals(ctx context.Context, vid needle.VolumeId, e
 	return
 }
 
-func (s *Store) readOneEcShardInterval(ctx context.Context, ecVolume *erasure_coding.EcVolume, interval erasure_coding.Interval) (data []byte, err error) {
+func (s *Store) readOneEcShardInterval(ctx context.Context, needleId types.NeedleId, ecVolume *erasure_coding.EcVolume, interval erasure_coding.Interval) (data []byte, is_deleted bool, err error) {
 	shardId, actualOffset := interval.ToShardIdAndOffset(erasure_coding.ErasureCodingLargeBlockSize, erasure_coding.ErasureCodingSmallBlockSize)
 	data = make([]byte, interval.Size)
 	if shard, found := ecVolume.FindEcVolumeShard(shardId); found {
@@ -207,7 +213,7 @@ func (s *Store) readOneEcShardInterval(ctx context.Context, ecVolume *erasure_co
 
 		// try reading directly
 		if hasShardIdLocation {
-			_, err = s.readRemoteEcShardInterval(ctx, sourceDataNodes, ecVolume.VolumeId, shardId, data, actualOffset)
+			_, is_deleted, err = s.readRemoteEcShardInterval(ctx, sourceDataNodes, needleId, ecVolume.VolumeId, shardId, data, actualOffset)
 			if err == nil {
 				return
 			}
@@ -216,7 +222,7 @@ func (s *Store) readOneEcShardInterval(ctx context.Context, ecVolume *erasure_co
 		}
 
 		// try reading by recovering from other shards
-		_, err = s.recoverOneRemoteEcShardInterval(ctx, ecVolume, shardId, data, actualOffset)
+		_, is_deleted, err = s.recoverOneRemoteEcShardInterval(ctx, needleId, ecVolume, shardId, data, actualOffset)
 		if err == nil {
 			return
 		}
@@ -236,11 +242,11 @@ func (s *Store) cachedLookupEcShardLocations(ctx context.Context, ecVolume *eras
 
 	shardCount := len(ecVolume.ShardLocations)
 	if shardCount < erasure_coding.DataShardsCount &&
-		ecVolume.ShardLocationsRefreshTime.Add(11*time.Second).After(time.Now()) ||
+		ecVolume.ShardLocationsRefreshTime.Add(11 * time.Second).After(time.Now()) ||
 		shardCount == erasure_coding.TotalShardsCount &&
-			ecVolume.ShardLocationsRefreshTime.Add(37*time.Minute).After(time.Now()) ||
+			ecVolume.ShardLocationsRefreshTime.Add(37 * time.Minute).After(time.Now()) ||
 		shardCount >= erasure_coding.DataShardsCount &&
-			ecVolume.ShardLocationsRefreshTime.Add(7*time.Minute).After(time.Now()) {
+			ecVolume.ShardLocationsRefreshTime.Add(7 * time.Minute).After(time.Now()) {
 		// still fresh
 		return nil
 	}
@@ -275,15 +281,15 @@ func (s *Store) cachedLookupEcShardLocations(ctx context.Context, ecVolume *eras
 	return
 }
 
-func (s *Store) readRemoteEcShardInterval(ctx context.Context, sourceDataNodes []string, vid needle.VolumeId, shardId erasure_coding.ShardId, buf []byte, offset int64) (n int, err error) {
+func (s *Store) readRemoteEcShardInterval(ctx context.Context, sourceDataNodes []string, needleId types.NeedleId, vid needle.VolumeId, shardId erasure_coding.ShardId, buf []byte, offset int64) (n int, is_deleted bool, err error) {
 
 	if len(sourceDataNodes) == 0 {
-		return 0, fmt.Errorf("failed to find ec shard %d.%d", vid, shardId)
+		return 0, false, fmt.Errorf("failed to find ec shard %d.%d", vid, shardId)
 	}
 
 	for _, sourceDataNode := range sourceDataNodes {
 		glog.V(4).Infof("read remote ec shard %d.%d from %s", vid, shardId, sourceDataNode)
-		n, err = s.doReadRemoteEcShardInterval(ctx, sourceDataNode, vid, shardId, buf, offset)
+		n, is_deleted, err = s.doReadRemoteEcShardInterval(ctx, sourceDataNode, needleId, vid, shardId, buf, offset)
 		if err == nil {
 			return
 		}
@@ -293,7 +299,7 @@ func (s *Store) readRemoteEcShardInterval(ctx context.Context, sourceDataNodes [
 	return
 }
 
-func (s *Store) doReadRemoteEcShardInterval(ctx context.Context, sourceDataNode string, vid needle.VolumeId, shardId erasure_coding.ShardId, buf []byte, offset int64) (n int, err error) {
+func (s *Store) doReadRemoteEcShardInterval(ctx context.Context, sourceDataNode string, needleId types.NeedleId, vid needle.VolumeId, shardId erasure_coding.ShardId, buf []byte, offset int64) (n int, is_deleted bool, err error) {
 
 	err = operation.WithVolumeServerClient(sourceDataNode, s.grpcDialOption, func(client volume_server_pb.VolumeServerClient) error {
 
@@ -303,6 +309,7 @@ func (s *Store) doReadRemoteEcShardInterval(ctx context.Context, sourceDataNode
 			ShardId:  uint32(shardId),
 			Offset:   offset,
 			Size:     int64(len(buf)),
+			FileKey:  uint64(needleId),
 		})
 		if err != nil {
 			return fmt.Errorf("failed to start reading ec shard %d.%d from %s: %v", vid, shardId, sourceDataNode, err)
@@ -316,6 +323,9 @@ func (s *Store) doReadRemoteEcShardInterval(ctx context.Context, sourceDataNode
 			if receiveErr != nil {
 				return fmt.Errorf("receiving ec shard %d.%d from %s: %v", vid, shardId, sourceDataNode, err)
 			}
+			if resp.IsDeleted {
+				is_deleted = true
+			}
 			copy(buf[n:n+len(resp.Data)], resp.Data)
 			n += len(resp.Data)
 		}
@@ -323,18 +333,18 @@ func (s *Store) doReadRemoteEcShardInterval(ctx context.Context, sourceDataNode
 		return nil
 	})
 	if err != nil {
-		return 0, fmt.Errorf("read ec shard %d.%d from %s: %v", vid, shardId, sourceDataNode, err)
+		return 0, is_deleted, fmt.Errorf("read ec shard %d.%d from %s: %v", vid, shardId, sourceDataNode, err)
 	}
 
 	return
 }
 
-func (s *Store) recoverOneRemoteEcShardInterval(ctx context.Context, ecVolume *erasure_coding.EcVolume, shardIdToRecover erasure_coding.ShardId, buf []byte, offset int64) (n int, err error) {
+func (s *Store) recoverOneRemoteEcShardInterval(ctx context.Context, needleId types.NeedleId, ecVolume *erasure_coding.EcVolume, shardIdToRecover erasure_coding.ShardId, buf []byte, offset int64) (n int, is_deleted bool, err error) {
 	glog.V(4).Infof("recover ec shard %d.%d from other locations", ecVolume.VolumeId, shardIdToRecover)
 
 	enc, err := reedsolomon.New(erasure_coding.DataShardsCount, erasure_coding.ParityShardsCount)
 	if err != nil {
-		return 0, fmt.Errorf("failed to create encoder: %v", err)
+		return 0, false, fmt.Errorf("failed to create encoder: %v", err)
 	}
 
 	bufs := make([][]byte, erasure_coding.TotalShardsCount)
@@ -357,11 +367,14 @@ func (s *Store) recoverOneRemoteEcShardInterval(ctx context.Context, ecVolume *e
 		go func(shardId erasure_coding.ShardId, locations []string) {
 			defer wg.Done()
 			data := make([]byte, len(buf))
-			nRead, readErr := s.readRemoteEcShardInterval(ctx, locations, ecVolume.VolumeId, shardId, data, offset)
+			nRead, isDeleted, readErr := s.readRemoteEcShardInterval(ctx, locations, needleId, ecVolume.VolumeId, shardId, data, offset)
 			if readErr != nil {
 				glog.V(3).Infof("recover: readRemoteEcShardInterval %d.%d %d bytes from %+v: %v", ecVolume.VolumeId, shardId, nRead, locations, readErr)
 				forgetShardId(ecVolume, shardId)
 			}
+			if isDeleted {
+				is_deleted = true
+			}
 			if nRead == len(buf) {
 				bufs[shardId] = data
 			}
@@ -373,13 +386,13 @@ func (s *Store) recoverOneRemoteEcShardInterval(ctx context.Context, ecVolume *e
 
 	if err = enc.ReconstructData(bufs); err != nil {
 		glog.V(3).Infof("recovered ec shard %d.%d failed: %v", ecVolume.VolumeId, shardIdToRecover, err)
-		return 0, err
+		return 0, false, err
 	}
 	glog.V(4).Infof("recovered ec shard %d.%d from other locations", ecVolume.VolumeId, shardIdToRecover)
 
 	copy(buf, bufs[shardIdToRecover])
 
-	return len(buf), nil
+	return len(buf), is_deleted, nil
 }
 
 func (s *Store) EcVolumes() (ecVolumes []*erasure_coding.EcVolume) {