diff --git a/source/dnode/mnode/impl/src/mndMain.c b/source/dnode/mnode/impl/src/mndMain.c
index 4d91b17252..51c1d90d69 100644
--- a/source/dnode/mnode/impl/src/mndMain.c
+++ b/source/dnode/mnode/impl/src/mndMain.c
@@ -911,11 +911,8 @@ _OVER:
   int32_t contLen = tSerializeSEpSet(NULL, 0, &epSet);
   pMsg->info.rsp = rpcMallocCont(contLen);
   if (pMsg->info.rsp != NULL) {
-    code = tSerializeSEpSet(pMsg->info.rsp, contLen, &epSet);
-    if (code < 0) {
-      rpcFreeCont(pMsg->info.rsp);
-      pMsg->info.rsp = NULL;
-      TAOS_RETURN(code);
+    if (tSerializeSEpSet(pMsg->info.rsp, contLen, &epSet) < 0) {
+      mError("failed to serialize ep set");
     }
     pMsg->info.hasEpSet = 1;
     pMsg->info.rspLen = contLen;
diff --git a/source/dnode/mnode/impl/src/mndSnode.c b/source/dnode/mnode/impl/src/mndSnode.c
index 3bfc7a7eea..2fb3d377c4 100644
--- a/source/dnode/mnode/impl/src/mndSnode.c
+++ b/source/dnode/mnode/impl/src/mndSnode.c
@@ -225,8 +225,7 @@ static int32_t mndSetCreateSnodeRedoActions(STrans *pTrans, SDnodeObj *pDnode, S
   }
   code = tSerializeSCreateDropMQSNodeReq(pReq, contLen, &createReq);
   if (code < 0) {
-    taosMemoryFree(pReq);
-    TAOS_RETURN(code);
+    mError("snode:%d, failed to serialize create drop snode request since %s", createReq.dnodeId, terrstr());
   }
 
   STransAction action = {0};
@@ -257,8 +256,7 @@ static int32_t mndSetCreateSnodeUndoActions(STrans *pTrans, SDnodeObj *pDnode, S
   }
   code = tSerializeSCreateDropMQSNodeReq(pReq, contLen, &dropReq);
   if (code < 0) {
-    taosMemoryFree(pReq);
-    TAOS_RETURN(code);
+    mError("snode:%d, failed to serialize create drop snode request since %s", dropReq.dnodeId, terrstr());
   }
 
   STransAction action = {0};
@@ -393,8 +391,7 @@ static int32_t mndSetDropSnodeRedoActions(STrans *pTrans, SDnodeObj *pDnode, SSn
   }
   code = tSerializeSCreateDropMQSNodeReq(pReq, contLen, &dropReq);
   if (code < 0) {
-    taosMemoryFree(pReq);
-    TAOS_RETURN(code);
+    mError("snode:%d, failed to serialize create drop snode request since %s", dropReq.dnodeId, terrstr());
   }
 
   STransAction action = {0};