diff --git a/source/dnode/mnode/impl/src/mndMain.c b/source/dnode/mnode/impl/src/mndMain.c
index 25872801e4..9b80370fd4 100644
--- a/source/dnode/mnode/impl/src/mndMain.c
+++ b/source/dnode/mnode/impl/src/mndMain.c
@@ -785,7 +785,7 @@ int32_t mndProcessSyncMsg(SRpcMsg *pMsg) {
 
   int32_t code = syncProcessMsg(pMgmt->sync, pMsg);
   if (code != 0) {
-    mGError("vgId:1, failed to process sync msg:%p type:%s, errno: %s, code:0x%x", pMsg, TMSG_INFO(pMsg->msgType),
+    mGError("vgId:1, failed to process sync msg:%p type:%s, reason: %s, code:0x%x", pMsg, TMSG_INFO(pMsg->msgType),
             tstrerror(code), code);
   }
 
diff --git a/source/dnode/vnode/src/vnd/vnodeSync.c b/source/dnode/vnode/src/vnd/vnodeSync.c
index 8c41ceba57..d8a29c8e73 100644
--- a/source/dnode/vnode/src/vnd/vnodeSync.c
+++ b/source/dnode/vnode/src/vnd/vnodeSync.c
@@ -373,8 +373,8 @@ int32_t vnodeProcessSyncMsg(SVnode *pVnode, SRpcMsg *pMsg, SRpcMsg **pRsp) {
 
   int32_t code = syncProcessMsg(pVnode->sync, pMsg);
   if (code != 0) {
-    vGError("vgId:%d, failed to process sync msg:%p type:%s, errno: %s, code:0x%x", pVnode->config.vgId, pMsg,
-            TMSG_INFO(pMsg->msgType), terrstr(), code);
+    vGError("vgId:%d, failed to process sync msg:%p type:%s, reason: %s", pVnode->config.vgId, pMsg,
+            TMSG_INFO(pMsg->msgType), tstrerror(code));
   }
 
   return code;
diff --git a/source/libs/sync/src/syncMain.c b/source/libs/sync/src/syncMain.c
index 2f5a3488a1..179bb4d503 100644
--- a/source/libs/sync/src/syncMain.c
+++ b/source/libs/sync/src/syncMain.c
@@ -269,8 +269,8 @@ int32_t syncProcessMsg(int64_t rid, SRpcMsg* pMsg) {
 
   syncNodeRelease(pSyncNode);
   if (code != 0) {
-    sDebug("vgId:%d, failed to process sync msg:%p type:%s since 0x%x", pSyncNode->vgId, pMsg, TMSG_INFO(pMsg->msgType),
-           code);
+    sDebug("vgId:%d, failed to process sync msg:%p type:%s since %s", pSyncNode->vgId, pMsg, TMSG_INFO(pMsg->msgType),
+           tstrerror(code));
   }
   TAOS_RETURN(code);
 }
diff --git a/source/libs/sync/src/syncRequestVote.c b/source/libs/sync/src/syncRequestVote.c
index 8b8b2580b1..738e558033 100644
--- a/source/libs/sync/src/syncRequestVote.c
+++ b/source/libs/sync/src/syncRequestVote.c
@@ -95,7 +95,7 @@ int32_t syncNodeOnRequestVote(SSyncNode* ths, const SRpcMsg* pRpcMsg) {
   if (!syncNodeInRaftGroup(ths, &pMsg->srcId)) {
     syncLogRecvRequestVote(ths, pMsg, -1, "not in my config");
 
-    TAOS_RETURN(TSDB_CODE_FAILED);
+    TAOS_RETURN(TSDB_CODE_SYN_MISMATCHED_SIGNATURE);
   }
 
   bool logOK = syncNodeOnRequestVoteLogOK(ths, pMsg);
diff --git a/source/libs/sync/src/syncRequestVoteReply.c b/source/libs/sync/src/syncRequestVoteReply.c
index eeddb708ab..add237c2d0 100644
--- a/source/libs/sync/src/syncRequestVoteReply.c
+++ b/source/libs/sync/src/syncRequestVoteReply.c
@@ -46,7 +46,7 @@ int32_t syncNodeOnRequestVoteReply(SSyncNode* ths, const SRpcMsg* pRpcMsg) {
   if (!syncNodeInRaftGroup(ths, &(pMsg->srcId))) {
     syncLogRecvRequestVoteReply(ths, pMsg, "not in my config");
 
-    TAOS_RETURN(TSDB_CODE_FAILED);
+    TAOS_RETURN(TSDB_CODE_SYN_MISMATCHED_SIGNATURE);
   }
   SyncTerm currentTerm = raftStoreGetTerm(ths);
   // drop stale response