diff --git a/source/dnode/mgmt/mgmt_vnode/src/vmHandle.c b/source/dnode/mgmt/mgmt_vnode/src/vmHandle.c
index 39733c5a5af61601a4da5a2db1eef652f95ca168..3ce37a5f8e817ec9121503088b1292d3eb0299e8 100644
--- a/source/dnode/mgmt/mgmt_vnode/src/vmHandle.c
+++ b/source/dnode/mgmt/mgmt_vnode/src/vmHandle.c
@@ -132,7 +132,7 @@ static void vmGenerateVnodeCfg(SCreateVnodeReq *pCreate, SVnodeCfg *pCfg) {
   pCfg->syncCfg.myIndex = pCreate->selfIndex;
   pCfg->syncCfg.replicaNum = pCreate->replica;
   memset(&pCfg->syncCfg.nodeInfo, 0, sizeof(pCfg->syncCfg.nodeInfo));
-  for (int i = 0; i < pCreate->replica; ++i) {
+  for (int32_t i = 0; i < pCreate->replica; ++i) {
     SNodeInfo *pNode = &pCfg->syncCfg.nodeInfo[i];
     pNode->nodeId = pCreate->replicas[i].id;
     pNode->nodePort = pCreate->replicas[i].port;
@@ -288,7 +288,8 @@ int32_t vmProcessAlterVnodeReq(SVnodeMgmt *pMgmt, SRpcMsg *pMsg) {
   dInfo("vgId:%d, start to alter vnode, replica:%d selfIndex:%d strict:%d", alterReq.vgId, alterReq.replica,
         alterReq.selfIndex, alterReq.strict);
   for (int32_t i = 0; i < alterReq.replica; ++i) {
-    dInfo("vgId:%d, replica:%d ep:%s:%u", alterReq.vgId, i, alterReq.replicas[i].fqdn, alterReq.replicas[i].port);
+    SReplica *pReplica = &alterReq.replicas[i];
+    dInfo("vgId:%d, replica:%d ep:%s:%u dnode:%d", alterReq.vgId, i, pReplica->fqdn, pReplica->port, pReplica->port);
   }
 
   if (alterReq.replica <= 0 || alterReq.selfIndex < 0 || alterReq.selfIndex >= alterReq.replica) {
diff --git a/source/dnode/vnode/src/vnd/vnodeCfg.c b/source/dnode/vnode/src/vnd/vnodeCfg.c
index 125db8dd92ba3710f76ccf8c6e2fbbab95e078b1..69af536a4454909be7816ebda880e99e648656c3 100644
--- a/source/dnode/vnode/src/vnd/vnodeCfg.c
+++ b/source/dnode/vnode/src/vnd/vnodeCfg.c
@@ -128,14 +128,19 @@ int vnodeEncodeConfig(const void *pObj, SJson *pJson) {
   SJson *nodeInfo = tjsonCreateArray();
   if (nodeInfo == NULL) return -1;
   if (tjsonAddItemToObject(pJson, "syncCfg.nodeInfo", nodeInfo) < 0) return -1;
+  vDebug("vgId:%d, encode config, replicas:%d selfIndex:%d", pCfg->vgId, pCfg->syncCfg.replicaNum,
+         pCfg->syncCfg.myIndex);
   for (int i = 0; i < pCfg->syncCfg.replicaNum; ++i) {
-    SJson *info = tjsonCreateObject();
+    SJson     *info = tjsonCreateObject();
+    SNodeInfo *pNode = (SNodeInfo *)&pCfg->syncCfg.nodeInfo[i];
     if (info == NULL) return -1;
-    if (tjsonAddIntegerToObject(info, "nodePort", pCfg->syncCfg.nodeInfo[i].nodePort) < 0) return -1;
-    if (tjsonAddStringToObject(info, "nodeFqdn", pCfg->syncCfg.nodeInfo[i].nodeFqdn) < 0) return -1;
-    if (tjsonAddIntegerToObject(info, "nodeId", pCfg->syncCfg.nodeInfo[i].nodeId) < 0) return -1;
-    if (tjsonAddIntegerToObject(info, "clusterId", pCfg->syncCfg.nodeInfo[i].clusterId) < 0) return -1;
+    if (tjsonAddIntegerToObject(info, "nodePort", pNode->nodePort) < 0) return -1;
+    if (tjsonAddStringToObject(info, "nodeFqdn", pNode->nodeFqdn) < 0) return -1;
+    if (tjsonAddIntegerToObject(info, "nodeId", pNode->nodeId) < 0) return -1;
+    if (tjsonAddIntegerToObject(info, "clusterId", pNode->clusterId) < 0) return -1;
     if (tjsonAddItemToArray(nodeInfo, info) < 0) return -1;
+    vDebug("vgId:%d, encode config, replica:%d ep:%s:%u dnode:%d", pCfg->vgId, i, pNode->nodeFqdn, pNode->nodePort,
+           pNode->nodeId);
   }
 
   return 0;
@@ -248,15 +253,20 @@ int vnodeDecodeConfig(const SJson *pJson, void *pObj) {
   int    arraySize = tjsonGetArraySize(nodeInfo);
   if (arraySize != pCfg->syncCfg.replicaNum) return -1;
 
+  vDebug("vgId:%d, decode config, replicas:%d selfIndex:%d", pCfg->vgId, pCfg->syncCfg.replicaNum,
+         pCfg->syncCfg.myIndex);
   for (int i = 0; i < arraySize; ++i) {
-    SJson *info = tjsonGetArrayItem(nodeInfo, i);
+    SJson     *info = tjsonGetArrayItem(nodeInfo, i);
+    SNodeInfo *pNode = &pCfg->syncCfg.nodeInfo[i];
     if (info == NULL) return -1;
-    tjsonGetNumberValue(info, "nodePort", pCfg->syncCfg.nodeInfo[i].nodePort, code);
+    tjsonGetNumberValue(info, "nodePort", pNode->nodePort, code);
     if (code < 0) return -1;
-    tjsonGetStringValue(info, "nodeFqdn", pCfg->syncCfg.nodeInfo[i].nodeFqdn);
+    tjsonGetStringValue(info, "nodeFqdn", pNode->nodeFqdn);
     if (code < 0) return -1;
-    tjsonGetNumberValue(info, "nodeId", pCfg->syncCfg.nodeInfo[i].nodeId, code);
-    tjsonGetNumberValue(info, "clusterId", pCfg->syncCfg.nodeInfo[i].clusterId, code);
+    tjsonGetNumberValue(info, "nodeId", pNode->nodeId, code);
+    tjsonGetNumberValue(info, "clusterId", pNode->clusterId, code);
+    vDebug("vgId:%d, decode config, replica:%d ep:%s:%u dnode:%d", pCfg->vgId, i, pNode->nodeFqdn, pNode->nodePort,
+           pNode->nodeId);
   }
 
   tjsonGetNumberValue(pJson, "tsdbPageSize", pCfg->tsdbPageSize, code);
diff --git a/source/dnode/vnode/src/vnd/vnodeCommit.c b/source/dnode/vnode/src/vnd/vnodeCommit.c
index 04a3e7d2f76bcc9f16e263098b4543265d7dc38b..6c54c3cb5c67b404c069e952c021597bdd0122f5 100644
--- a/source/dnode/vnode/src/vnd/vnodeCommit.c
+++ b/source/dnode/vnode/src/vnd/vnodeCommit.c
@@ -105,8 +105,8 @@ int vnodeSaveInfo(const char *dir, const SVnodeInfo *pInfo) {
   // free info binary
   taosMemoryFree(data);
 
-  vInfo("vgId:%d, vnode info is saved, fname:%s replica:%d", pInfo->config.vgId, fname,
-        pInfo->config.syncCfg.replicaNum);
+  vInfo("vgId:%d, vnode info is saved, fname:%s replica:%d selfIndex:%d", pInfo->config.vgId, fname,
+        pInfo->config.syncCfg.replicaNum, pInfo->config.syncCfg.myIndex);
 
   return 0;
 
@@ -206,6 +206,8 @@ static int32_t vnodePrepareCommit(SVnode *pVnode, SCommitInfo *pInfo) {
   } else {
     snprintf(dir, TSDB_FILENAME_LEN, "%s", pVnode->path);
   }
+
+  vDebug("vgId:%d, save config while prepare commit", TD_VID(pVnode));
   if (vnodeSaveInfo(dir, &pInfo->info) < 0) {
     code = terrno;
     TSDB_CHECK_CODE(code, lino, _exit);
diff --git a/source/dnode/vnode/src/vnd/vnodeOpen.c b/source/dnode/vnode/src/vnd/vnodeOpen.c
index 9cfcbda890b066f40bc854e063c72e556d573e93..bec5d2977b8db7b4c11efd7c977264b2b5800372 100644
--- a/source/dnode/vnode/src/vnd/vnodeOpen.c
+++ b/source/dnode/vnode/src/vnd/vnodeOpen.c
@@ -48,6 +48,7 @@ int32_t vnodeCreate(const char *path, SVnodeCfg *pCfg, STfs *pTfs) {
   info.state.applied = -1;
   info.state.commitID = 0;
 
+  vInfo("vgId:%d, save config while create", pCfg->vgId);
   if (vnodeSaveInfo(dir, &info) < 0 || vnodeCommitInfo(dir, &info) < 0) {
     vError("vgId:%d, failed to save vnode config since %s", pCfg ? pCfg->vgId : 0, tstrerror(terrno));
     return -1;
@@ -79,14 +80,14 @@ int32_t vnodeAlter(const char *path, SAlterVnodeReplicaReq *pReq, STfs *pTfs) {
   pCfg->replicaNum = pReq->replica;
   memset(&pCfg->nodeInfo, 0, sizeof(pCfg->nodeInfo));
 
-  vInfo("vgId:%d, save config, replicas:%d selfIndex:%d", pReq->vgId, pCfg->replicaNum, pCfg->myIndex);
+  vInfo("vgId:%d, save config while alter, replicas:%d selfIndex:%d", pReq->vgId, pCfg->replicaNum, pCfg->myIndex);
   for (int i = 0; i < pReq->replica; ++i) {
     SNodeInfo *pNode = &pCfg->nodeInfo[i];
     pNode->nodeId = pReq->replicas[i].id;
     pNode->nodePort = pReq->replicas[i].port;
     tstrncpy(pNode->nodeFqdn, pReq->replicas[i].fqdn, sizeof(pNode->nodeFqdn));
     (void)tmsgUpdateDnodeInfo(&pNode->nodeId, &pNode->clusterId, pNode->nodeFqdn, &pNode->nodePort);
-    vInfo("vgId:%d, save config, replica:%d ep:%s:%u", pReq->vgId, i, pNode->nodeFqdn, pNode->nodePort);
+    vInfo("vgId:%d, replica:%d ep:%s:%u dnode:%d", pReq->vgId, i, pNode->nodeFqdn, pNode->nodePort, pNode->nodeId);
   }
 
   info.config.syncCfg = *pCfg;
diff --git a/source/dnode/vnode/src/vnd/vnodeSnapshot.c b/source/dnode/vnode/src/vnd/vnodeSnapshot.c
index 2fc06fba86331882df27197bd9405cf72c98088c..cc22668b299db87d0701c507f75f79258be7a178 100644
--- a/source/dnode/vnode/src/vnd/vnodeSnapshot.c
+++ b/source/dnode/vnode/src/vnd/vnodeSnapshot.c
@@ -405,6 +405,10 @@ static int32_t vnodeSnapWriteInfo(SVSnapWriter *pWriter, uint8_t *pData, uint32_
   } else {
     snprintf(dir, TSDB_FILENAME_LEN, "%s", pWriter->pVnode->path);
   }
+
+  SVnode *pVnode = pWriter->pVnode;
+  pWriter->info.config = pVnode->config;
+  vDebug("vgId:%d, save config while write snapshot", pWriter->pVnode->config.vgId);
   if (vnodeSaveInfo(dir, &pWriter->info) < 0) {
     code = terrno;
     goto _exit;
diff --git a/source/libs/sync/src/syncMain.c b/source/libs/sync/src/syncMain.c
index b944be0c67cc2b0a58c9082661274cd85b3c4646..bf220178a422970c69fd3998f8dd735ebccfdb17 100644
--- a/source/libs/sync/src/syncMain.c
+++ b/source/libs/sync/src/syncMain.c
@@ -851,6 +851,7 @@ SSyncNode* syncNodeOpen(SSyncInfo* pSyncInfo) {
 
   if (!taosCheckExistFile(pSyncNode->configPath)) {
     // create a new raft config file
+    sInfo("vgId:%d, create a new raft config file", pSyncNode->vgId);
     pSyncNode->raftCfg.isStandBy = pSyncInfo->isStandBy;
     pSyncNode->raftCfg.snapshotStrategy = pSyncInfo->snapshotStrategy;
     pSyncNode->raftCfg.lastConfigIndex = SYNC_INDEX_INVALID;
@@ -894,7 +895,6 @@ SSyncNode* syncNodeOpen(SSyncInfo* pSyncInfo) {
           pNode->nodeId, pNode->clusterId);
   }
 
-
   pSyncNode->pWal = pSyncInfo->pWal;
   pSyncNode->msgcb = pSyncInfo->msgcb;
   pSyncNode->syncSendMSg = pSyncInfo->syncSendMSg;
@@ -1656,7 +1656,6 @@ void syncNodeDoConfigChange(SSyncNode* pSyncNode, SSyncCfg* pNewConfig, SyncInde
     // persist cfg
     syncWriteCfgFile(pSyncNode);
 
-
     // change isStandBy to normal (election timeout)
     if (pSyncNode->state == TAOS_SYNC_STATE_LEADER) {
       syncNodeBecomeLeader(pSyncNode, "");