diff --git a/weed/server/filer_grpc_server_sub_meta.go b/weed/server/filer_grpc_server_sub_meta.go
index 39109071e..259879790 100644
--- a/weed/server/filer_grpc_server_sub_meta.go
+++ b/weed/server/filer_grpc_server_sub_meta.go
@@ -101,6 +101,7 @@ func (fs *FilerServer) SubscribeLocalMetadata(req *filer_pb.SubscribeMetadataReq
 		glog.V(0).Infof("read on disk %v local subscribe %s from %+v", clientName, req.PathPrefix, lastReadTime)
 		processedTsNs, readPersistedLogErr = fs.filer.ReadPersistedLogBuffer(lastReadTime, eachLogEntryFn)
 		if readPersistedLogErr != nil {
+			glog.V(0).Infof("read on disk %v local subscribe %s from %+v: %v", clientName, req.PathPrefix, lastReadTime, readPersistedLogErr)
 			return fmt.Errorf("reading from persisted logs: %v", readPersistedLogErr)
 		}