diff --git a/source/dnode/vnode/inc/vnode.h b/source/dnode/vnode/inc/vnode.h
index 1c29470da3..0c0e663738 100644
--- a/source/dnode/vnode/inc/vnode.h
+++ b/source/dnode/vnode/inc/vnode.h
@@ -161,9 +161,9 @@ int32_t vnodeSnapReaderOpen(SVnode *pVnode, int64_t sver, int64_t ever, SVSnapRe
 int32_t vnodeSnapReaderClose(SVSnapReader *pReader);
 int32_t vnodeSnapRead(SVSnapReader *pReader, uint8_t **ppData, uint32_t *nData);
 // SVSnapWriter
-int32_t vnodeSnapshotWriterOpen(SVnode *pVnode, int64_t sver, int64_t ever, SVSnapWriter **ppWriter);
-int32_t vnodeSnapshotWriterClose(SVSnapWriter *pWriter, int8_t rollback);
-int32_t vnodeSnapshotWrite(SVSnapWriter *pWriter, uint8_t *pData, uint32_t nData);
+int32_t vnodeSnapWriterOpen(SVnode *pVnode, int64_t sver, int64_t ever, SVSnapWriter **ppWriter);
+int32_t vnodeSnapWriterClose(SVSnapWriter *pWriter, int8_t rollback);
+int32_t vnodeSnapWrite(SVSnapWriter *pWriter, uint8_t *pData, uint32_t nData);
 
 // structs
 struct STsdbCfg {
diff --git a/source/dnode/vnode/src/tsdb/tsdbSnapshot.c b/source/dnode/vnode/src/tsdb/tsdbSnapshot.c
index 0f80ce080a..219d5edb7b 100644
--- a/source/dnode/vnode/src/tsdb/tsdbSnapshot.c
+++ b/source/dnode/vnode/src/tsdb/tsdbSnapshot.c
@@ -185,6 +185,7 @@ static int32_t tsdbSnapReadDel(STsdbSnapReader* pReader, uint8_t** ppData) {
   }
 
   code = TSDB_CODE_VND_READ_END;
+  tsdbDelFReaderClose(&pReader->pDelFReader);
 
 _exit:
   return code;
@@ -302,7 +303,7 @@ _err:
   return code;
 }
 
-// STsdbSnapReader ========================================
+// STsdbSnapWriter ========================================
 struct STsdbSnapWriter {
   STsdb*  pTsdb;
   int64_t sver;
diff --git a/source/dnode/vnode/src/vnd/vnodeSnapshot.c b/source/dnode/vnode/src/vnd/vnodeSnapshot.c
index 410e66e464..c5353949ef 100644
--- a/source/dnode/vnode/src/vnd/vnodeSnapshot.c
+++ b/source/dnode/vnode/src/vnd/vnodeSnapshot.c
@@ -118,7 +118,7 @@ struct SVSnapWriter {
   int64_t ever;
 };
 
-int32_t vnodeSnapshotWriterOpen(SVnode *pVnode, int64_t sver, int64_t ever, SVSnapWriter **ppWriter) {
+int32_t vnodeSnapWriterOpen(SVnode *pVnode, int64_t sver, int64_t ever, SVSnapWriter **ppWriter) {
   int32_t       code = 0;
   SVSnapWriter *pWriter = NULL;
 
@@ -138,7 +138,7 @@ _err:
   return code;
 }
 
-int32_t vnodeSnapshotWriterClose(SVSnapWriter *pWriter, int8_t rollback) {
+int32_t vnodeSnapWriterClose(SVSnapWriter *pWriter, int8_t rollback) {
   int32_t code = 0;
 
   if (!rollback) {
@@ -151,7 +151,7 @@ int32_t vnodeSnapshotWriterClose(SVSnapWriter *pWriter, int8_t rollback) {
   return code;
 }
 
-int32_t vnodeSnapshotWrite(SVSnapWriter *pWriter, uint8_t *pData, uint32_t nData) {
+int32_t vnodeSnapWrite(SVSnapWriter *pWriter, uint8_t *pData, uint32_t nData) {
   int32_t code = 0;
   // TODO
   return code;