diff --git a/weed/server/volume_grpc_erasure_coding.go b/weed/server/volume_grpc_erasure_coding.go
index 3d11cff29..93e5fb7ed 100644
--- a/weed/server/volume_grpc_erasure_coding.go
+++ b/weed/server/volume_grpc_erasure_coding.go
@@ -38,6 +38,8 @@ Steps to apply erasure coding to .dat .idx files
 // VolumeEcShardsGenerate generates the .ecx and .ec00 ~ .ec13 files
 func (vs *VolumeServer) VolumeEcShardsGenerate(ctx context.Context, req *volume_server_pb.VolumeEcShardsGenerateRequest) (*volume_server_pb.VolumeEcShardsGenerateResponse, error) {
 
+	glog.V(0).Infof("VolumeEcShardsGenerate: %v", req)
+
 	v := vs.store.GetVolume(needle.VolumeId(req.VolumeId))
 	if v == nil {
 		return nil, fmt.Errorf("volume %d not found", req.VolumeId)
@@ -69,6 +71,8 @@ func (vs *VolumeServer) VolumeEcShardsGenerate(ctx context.Context, req *volume_
 // VolumeEcShardsRebuild generates the any of the missing .ec00 ~ .ec13 files
 func (vs *VolumeServer) VolumeEcShardsRebuild(ctx context.Context, req *volume_server_pb.VolumeEcShardsRebuildRequest) (*volume_server_pb.VolumeEcShardsRebuildResponse, error) {
 
+	glog.V(0).Infof("VolumeEcShardsRebuild: %v", req)
+
 	baseFileName := erasure_coding.EcShardBaseFileName(req.Collection, int(req.VolumeId))
 
 	var rebuiltShardIds []uint32
@@ -99,6 +103,8 @@ func (vs *VolumeServer) VolumeEcShardsRebuild(ctx context.Context, req *volume_s
 // VolumeEcShardsCopy copy the .ecx and some ec data slices
 func (vs *VolumeServer) VolumeEcShardsCopy(ctx context.Context, req *volume_server_pb.VolumeEcShardsCopyRequest) (*volume_server_pb.VolumeEcShardsCopyResponse, error) {
 
+	glog.V(0).Infof("VolumeEcShardsCopy: %v", req)
+
 	location := vs.store.FindFreeLocation()
 	if location == nil {
 		return nil, fmt.Errorf("no space left")
@@ -213,6 +219,8 @@ func (vs *VolumeServer) VolumeEcShardsDelete(ctx context.Context, req *volume_se
 
 func (vs *VolumeServer) VolumeEcShardsMount(ctx context.Context, req *volume_server_pb.VolumeEcShardsMountRequest) (*volume_server_pb.VolumeEcShardsMountResponse, error) {
 
+	glog.V(0).Infof("VolumeEcShardsMount: %v", req)
+
 	for _, shardId := range req.ShardIds {
 		err := vs.store.MountEcShards(req.Collection, needle.VolumeId(req.VolumeId), erasure_coding.ShardId(shardId))
 
@@ -232,6 +240,8 @@ func (vs *VolumeServer) VolumeEcShardsMount(ctx context.Context, req *volume_ser
 
 func (vs *VolumeServer) VolumeEcShardsUnmount(ctx context.Context, req *volume_server_pb.VolumeEcShardsUnmountRequest) (*volume_server_pb.VolumeEcShardsUnmountResponse, error) {
 
+	glog.V(0).Infof("VolumeEcShardsUnmount: %v", req)
+
 	for _, shardId := range req.ShardIds {
 		err := vs.store.UnmountEcShards(needle.VolumeId(req.VolumeId), erasure_coding.ShardId(shardId))
 
@@ -319,6 +329,8 @@ func (vs *VolumeServer) VolumeEcShardRead(req *volume_server_pb.VolumeEcShardRea
 
 func (vs *VolumeServer) VolumeEcBlobDelete(ctx context.Context, req *volume_server_pb.VolumeEcBlobDeleteRequest) (*volume_server_pb.VolumeEcBlobDeleteResponse, error) {
 
+	glog.V(0).Infof("VolumeEcBlobDelete: %v", req)
+
 	resp := &volume_server_pb.VolumeEcBlobDeleteResponse{}
 
 	for _, location := range vs.store.Locations {
@@ -347,6 +359,8 @@ func (vs *VolumeServer) VolumeEcBlobDelete(ctx context.Context, req *volume_serv
 // VolumeEcShardsToVolume generates the .idx, .dat files from .ecx, .ecj and .ec01 ~ .ec14 files
 func (vs *VolumeServer) VolumeEcShardsToVolume(ctx context.Context, req *volume_server_pb.VolumeEcShardsToVolumeRequest) (*volume_server_pb.VolumeEcShardsToVolumeResponse, error) {
 
+	glog.V(0).Infof("VolumeEcShardsToVolume: %v", req)
+
 	v, found := vs.store.FindEcVolume(needle.VolumeId(req.VolumeId))
 	if !found {
 		return nil, fmt.Errorf("ec volume %d not found", req.VolumeId)
diff --git a/weed/storage/erasure_coding/ec_encoder.go b/weed/storage/erasure_coding/ec_encoder.go
index 97c3ccbd9..5953b69ef 100644
--- a/weed/storage/erasure_coding/ec_encoder.go
+++ b/weed/storage/erasure_coding/ec_encoder.go
@@ -77,6 +77,8 @@ func generateEcFiles(baseFileName string, bufferSize int, largeBlockSize int64,
 	if err != nil {
 		return fmt.Errorf("failed to stat dat file: %v", err)
 	}
+
+	glog.V(0).Infof("encodeDatFile %s.dat size:%d", baseFileNam, fi.Size())
 	err = encodeDatFile(fi.Size(), err, baseFileName, bufferSize, largeBlockSize, file, smallBlockSize)
 	if err != nil {
 		return fmt.Errorf("encodeDatFile: %v", err)