diff --git a/source/dnode/mnode/impl/src/mndDb.c b/source/dnode/mnode/impl/src/mndDb.c
index e772ff326c7dd5f745bb0c39d62e034da99e29bd..eb5f39e983e916b92043189191a7d96c8335c2c9 100644
--- a/source/dnode/mnode/impl/src/mndDb.c
+++ b/source/dnode/mnode/impl/src/mndDb.c
@@ -914,6 +914,8 @@ static void mndBuildDBVgroupInfo(SDbObj *pDb, SMnode *pMnode, SArray *pVgList) {
 
     sdbRelease(pSdb, pVgroup);
   }
+
+  sdbCancelFetch(pSdb, pIter);
 }
 
 static int32_t mndProcessUseDbReq(SMnodeMsg *pReq) {