diff --git a/source/dnode/mnode/impl/src/mndSync.c b/source/dnode/mnode/impl/src/mndSync.c
index ac95dd2795b5fb90b4cd1cf657aa151850035af8..cd6fe380e13bfbcdc7af6e58c0d5adb5ed95c337 100644
--- a/source/dnode/mnode/impl/src/mndSync.c
+++ b/source/dnode/mnode/impl/src/mndSync.c
@@ -71,8 +71,8 @@ void mndSyncCommitMsg(struct SSyncFSM *pFsm, const SRpcMsg *pMsg, SFsmCbMeta cbM
       mInfo("trans:%d, is proposed and post sem", transId);
     }
     pMgmt->transId = 0;
-    taosWUnLockLatch(&pMgmt->lock);
     tsem_post(&pMgmt->syncSem);
+    taosWUnLockLatch(&pMgmt->lock);
   } else {
     taosWUnLockLatch(&pMgmt->lock);
     STrans *pTrans = mndAcquireTrans(pMnode, transId);
@@ -113,27 +113,7 @@ void mndRestoreFinish(struct SSyncFSM *pFsm) {
   }
 }
 
-void mndReConfig(struct SSyncFSM *pFsm, const SRpcMsg *pMsg, SReConfigCbMeta *cbMeta) {
-  SMnode    *pMnode = pFsm->data;
-  SSyncMgmt *pMgmt = &pMnode->syncMgmt;
-
-  pMgmt->errCode = cbMeta->code;
-  mInfo("trans:-1, sync reconfig is proposed, saved:%d code:0x%x, index:%" PRId64 " term:%" PRId64, pMgmt->transId,
-        cbMeta->code, cbMeta->index, cbMeta->term);
-
-  taosWLockLatch(&pMgmt->lock);
-  if (pMgmt->transId == -1) {
-    if (pMgmt->errCode != 0) {
-      mError("trans:-1, failed to propose sync reconfig since %s, post sem", tstrerror(pMgmt->errCode));
-    } else {
-      mInfo("trans:-1, sync reconfig is proposed, saved:%d code:0x%x, index:%" PRId64 " term:%" PRId64 " post sem",
-            pMgmt->transId, cbMeta->code, cbMeta->index, cbMeta->term);
-    }
-    pMgmt->transId = 0;
-    tsem_post(&pMgmt->syncSem);
-  }
-  taosWUnLockLatch(&pMgmt->lock);
-}
+void mndReConfig(struct SSyncFSM *pFsm, const SRpcMsg *pMsg, SReConfigCbMeta *cbMeta) {}
 
 int32_t mndSnapshotStartRead(struct SSyncFSM *pFsm, void *pParam, void **ppReader) {
   mInfo("start to read snapshot from sdb");
@@ -179,11 +159,14 @@ void mndLeaderTransfer(struct SSyncFSM *pFsm, const SRpcMsg *pMsg, SFsmCbMeta cb
 
 static void mndBecomeFollower(struct SSyncFSM *pFsm) {
   SMnode *pMnode = pFsm->data;
-  mInfo("vgId:1, become follower and post sem");
+  mInfo("vgId:1, become follower");
 
   taosWLockLatch(&pMnode->syncMgmt.lock);
   if (pMnode->syncMgmt.transId != 0) {
+    mInfo("vgId:1, become follower and post sem, trans:%d, failed to propose since not leader",
+          pMnode->syncMgmt.transId);
     pMnode->syncMgmt.transId = 0;
+    pMnode->syncMgmt.errCode = TSDB_CODE_SYN_NOT_LEADER;
     tsem_post(&pMnode->syncMgmt.syncSem);
   }
   taosWUnLockLatch(&pMnode->syncMgmt.lock);
@@ -292,6 +275,7 @@ int32_t mndSyncPropose(SMnode *pMnode, SSdbRaw *pRaw, int32_t transId) {
   int32_t    code = syncPropose(pMgmt->sync, &req, isWeak);
 
   if (code == 0) {
+    mInfo("trans:%d, is proposing and wait sem", pMgmt->transId);
     tsem_wait(&pMgmt->syncSem);
   } else if (code > 0) {
     mInfo("trans:%d, confirm at once since replica is 1, continue execute", transId);
@@ -301,12 +285,16 @@ int32_t mndSyncPropose(SMnode *pMnode, SSdbRaw *pRaw, int32_t transId) {
     sdbWriteWithoutFree(pMnode->pSdb, pRaw);
     sdbSetApplyInfo(pMnode->pSdb, req.info.conn.applyIndex, req.info.conn.applyTerm, SYNC_INDEX_INVALID);
     code = 0;
-  } else if (code == -1 && terrno == TSDB_CODE_SYN_NOT_LEADER) {
-    terrno = TSDB_CODE_APP_NOT_READY;
-  } else if (code == -1 && terrno == TSDB_CODE_SYN_INTERNAL_ERROR) {
-    terrno = TSDB_CODE_SYN_INTERNAL_ERROR;
   } else {
-    terrno = TSDB_CODE_APP_ERROR;
+    taosWLockLatch(&pMgmt->lock);
+    mInfo("trans:%d, failed to proposed since %s", transId, terrstr());
+    pMgmt->transId = 0;
+    taosWUnLockLatch(&pMgmt->lock);
+    if (terrno == TSDB_CODE_SYN_NOT_LEADER) {
+      terrno = TSDB_CODE_APP_NOT_READY;
+    } else {
+      terrno = TSDB_CODE_APP_ERROR;
+    }
   }
 
   rpcFreeCont(req.pCont);
@@ -315,6 +303,7 @@ int32_t mndSyncPropose(SMnode *pMnode, SSdbRaw *pRaw, int32_t transId) {
     return code;
   }
 
+  if (pMgmt->errCode != 0) terrno = pMgmt->errCode;
   return pMgmt->errCode;
 }
 
@@ -328,6 +317,7 @@ void mndSyncStart(SMnode *pMnode) {
 void mndSyncStop(SMnode *pMnode) {
   taosWLockLatch(&pMnode->syncMgmt.lock);
   if (pMnode->syncMgmt.transId != 0) {
+    mInfo("vgId:1, is stopped and post sem, trans:%d", pMnode->syncMgmt.transId);
     pMnode->syncMgmt.transId = 0;
     tsem_post(&pMnode->syncMgmt.syncSem);
   }
diff --git a/source/dnode/mnode/impl/src/mndTrans.c b/source/dnode/mnode/impl/src/mndTrans.c
index a64b07fdbd6491bb16b7854758029bde06b14808..92e9d755aa62855e5ce2d27cac7a91b367ac288e 100644
--- a/source/dnode/mnode/impl/src/mndTrans.c
+++ b/source/dnode/mnode/impl/src/mndTrans.c
@@ -778,7 +778,7 @@ static int32_t mndTransSync(SMnode *pMnode, STrans *pTrans) {
   mInfo("trans:%d, sync to other mnodes, stage:%s", pTrans->id, mndTransStr(pTrans->stage));
   int32_t code = mndSyncPropose(pMnode, pRaw, pTrans->id);
   if (code != 0) {
-    mError("trans:%d, failed to sync since %s", pTrans->id, terrstr());
+    mError("trans:%d, failed to sync, errno:%s code:%s", pTrans->id, terrstr(), tstrerror(code));
     sdbFreeRaw(pRaw);
     return -1;
   }
diff --git a/source/libs/sync/src/syncMain.c b/source/libs/sync/src/syncMain.c
index b30717a1effb33cf8c057efdd780fa97168528c4..ba4ce8def37e38876db6a3b633a662d965b6230f 100644
--- a/source/libs/sync/src/syncMain.c
+++ b/source/libs/sync/src/syncMain.c
@@ -1115,6 +1115,9 @@ SSyncNode* syncNodeOpen(SSyncInfo* pOldSyncInfo) {
       sError("failed to create raft cfg file. configPath: %s", pSyncNode->configPath);
       goto _error;
     }
+    if (pSyncInfo->syncCfg.replicaNum == 0) {
+      pSyncInfo->syncCfg = pSyncNode->pRaftCfg->cfg;
+    }
   } else {
     // update syncCfg by raft_config.json
     pSyncNode->pRaftCfg = raftCfgOpen(pSyncNode->configPath);
@@ -2047,8 +2050,27 @@ inline bool syncNodeInConfig(SSyncNode* pSyncNode, const SSyncCfg* config) {
   return b1;
 }
 
+static bool syncIsConfigChanged(const SSyncCfg* pOldCfg, const SSyncCfg* pNewCfg) {
+  if (pOldCfg->replicaNum != pNewCfg->replicaNum) return true;
+  if (pOldCfg->myIndex != pNewCfg->myIndex) return true;
+  for (int32_t i = 0; i < pOldCfg->replicaNum; ++i) {
+    const SNodeInfo* pOldInfo = &pOldCfg->nodeInfo[i];
+    const SNodeInfo* pNewInfo = &pNewCfg->nodeInfo[i];
+    if (strcmp(pOldInfo->nodeFqdn, pNewInfo->nodeFqdn) != 0) return true;
+    if (pOldInfo->nodePort != pNewInfo->nodePort) return true;
+  }
+
+  return false;
+}
+
 void syncNodeDoConfigChange(SSyncNode* pSyncNode, SSyncCfg* pNewConfig, SyncIndex lastConfigChangeIndex) {
   SSyncCfg oldConfig = pSyncNode->pRaftCfg->cfg;
+#if 0 
+  if (!syncIsConfigChanged(&oldConfig, pNewConfig)) {
+    sInfo("vgId:1, sync not reconfig since not changed");
+    return;
+  }
+#endif
   pSyncNode->pRaftCfg->cfg = *pNewConfig;
   pSyncNode->pRaftCfg->lastConfigIndex = lastConfigChangeIndex;