diff --git a/source/dnode/mnode/impl/src/mndSync.c b/source/dnode/mnode/impl/src/mndSync.c
index 89f3c6e253..282ae677fe 100644
--- a/source/dnode/mnode/impl/src/mndSync.c
+++ b/source/dnode/mnode/impl/src/mndSync.c
@@ -183,7 +183,7 @@ int32_t mndProcessWriteMsg(SMnode *pMnode, SRpcMsg *pMsg, SFsmCbMeta *pMeta) {
   code = mndTransValidate(pMnode, pRaw);
   if (code != 0) {
     mError("trans:%d, failed to validate requested trans since %s", transId, terrstr());
-    code = 0;
+    // code = 0;
     pMeta->code = code;
     goto _OUT;
   }
@@ -191,7 +191,7 @@ int32_t mndProcessWriteMsg(SMnode *pMnode, SRpcMsg *pMsg, SFsmCbMeta *pMeta) {
   code = sdbWriteWithoutFree(pMnode->pSdb, pRaw);
   if (code != 0) {
     mError("trans:%d, failed to write to sdb since %s", transId, terrstr());
-    code = 0;
+    // code = 0;
     pMeta->code = code;
     goto _OUT;
   }
@@ -206,7 +206,10 @@ int32_t mndProcessWriteMsg(SMnode *pMnode, SRpcMsg *pMsg, SFsmCbMeta *pMeta) {
 
   if (pTrans->stage == TRN_STAGE_PREPARE) {
     bool continueExec = mndTransPerformPrepareStage(pMnode, pTrans, false);
-    if (!continueExec) goto _OUT;
+    if (!continueExec) {
+      if (terrno != 0) code = terrno;
+      goto _OUT;
+    }
   }
 
   mndTransRefresh(pMnode, pTrans);
diff --git a/source/dnode/mnode/impl/src/mndTrans.c b/source/dnode/mnode/impl/src/mndTrans.c
index 7f8d63c8e0..ab236007a1 100644
--- a/source/dnode/mnode/impl/src/mndTrans.c
+++ b/source/dnode/mnode/impl/src/mndTrans.c
@@ -1569,6 +1569,7 @@ static int32_t mndTransExecuteUndoActionsSerial(SMnode *pMnode, STrans *pTrans,
 bool mndTransPerformPrepareStage(SMnode *pMnode, STrans *pTrans, bool topHalf) {
   bool    continueExec = true;
   int32_t code = 0;
+  terrno = 0;
 
   int32_t numOfActions = taosArrayGetSize(pTrans->prepareActions);
   if (numOfActions == 0) goto _OVER;
@@ -1579,7 +1580,9 @@ bool mndTransPerformPrepareStage(SMnode *pMnode, STrans *pTrans, bool topHalf) {
     STransAction *pAction = taosArrayGet(pTrans->prepareActions, action);
     code = mndTransExecSingleAction(pMnode, pTrans, pAction, topHalf);
     if (code != 0) {
-      mError("trans:%d, failed to execute prepare action:%d, numOfActions:%d", pTrans->id, action, numOfActions);
+      terrno = code;
+      mError("trans:%d, failed to execute prepare action:%d, numOfActions:%d, since %s", pTrans->id, action,
+             numOfActions, tstrerror(code));
       return false;
     }
   }