diff --git a/source/dnode/vnode/src/tsdb/tsdbCommit.c b/source/dnode/vnode/src/tsdb/tsdbCommit.c
index f3acfca39c..bd616766df 100644
--- a/source/dnode/vnode/src/tsdb/tsdbCommit.c
+++ b/source/dnode/vnode/src/tsdb/tsdbCommit.c
@@ -170,6 +170,10 @@ int32_t tsdbCommit(STsdb *pTsdb) {
 
   // check
   if (pMemTable->nRow == 0 && pMemTable->nDel == 0) {
+    taosThreadRwlockWrlock(&pTsdb->rwLock);
+    pTsdb->imem = NULL;
+    taosThreadRwlockUnlock(&pTsdb->rwLock);
+
     tsdbUnrefMemTable(pMemTable);
     goto _exit;
   }