diff --git a/cmake/taostools_CMakeLists.txt.in b/cmake/taostools_CMakeLists.txt.in
index e3e12fa0b5..83b7ade407 100644
--- a/cmake/taostools_CMakeLists.txt.in
+++ b/cmake/taostools_CMakeLists.txt.in
@@ -2,7 +2,7 @@
 # taos-tools
 ExternalProject_Add(taos-tools
         GIT_REPOSITORY https://github.com/taosdata/taos-tools.git
-        GIT_TAG 719fc88
+        GIT_TAG 16eb34f
         SOURCE_DIR "${TD_SOURCE_DIR}/tools/taos-tools"
         BINARY_DIR ""
         #BUILD_IN_SOURCE TRUE
diff --git a/include/dnode/mnode/mnode.h b/include/dnode/mnode/mnode.h
index c9e47c25b7..cdb1642a5c 100644
--- a/include/dnode/mnode/mnode.h
+++ b/include/dnode/mnode/mnode.h
@@ -99,7 +99,6 @@ int32_t mndGetLoad(SMnode *pMnode, SMnodeLoad *pLoad);
  */
 int32_t mndProcessRpcMsg(SRpcMsg *pMsg);
 int32_t mndProcessSyncMsg(SRpcMsg *pMsg);
-int32_t mndProcessSyncCtrlMsg(SRpcMsg *pMsg);
 int32_t mndPreProcessQueryMsg(SRpcMsg *pMsg);
 void    mndPostProcessQueryMsg(SRpcMsg *pMsg);
 
diff --git a/include/libs/sync/sync.h b/include/libs/sync/sync.h
index 1a94dcf426..fc926cb1b4 100644
--- a/include/libs/sync/sync.h
+++ b/include/libs/sync/sync.h
@@ -220,21 +220,13 @@ const char* syncStr(ESyncState state);
 bool        syncIsRestoreFinish(int64_t rid);
 int32_t     syncGetSnapshotByIndex(int64_t rid, SyncIndex index, SSnapshot* pSnapshot);
 
-int32_t syncReconfig(int64_t rid, SSyncCfg* pNewCfg);
-
-// build SRpcMsg, need to call syncPropose with SRpcMsg
-int32_t syncReconfigBuild(int64_t rid, const SSyncCfg* pNewCfg, SRpcMsg* pRpcMsg);
-
+int32_t syncReconfig(int64_t rid, SSyncCfg* pCfg);
 int32_t syncLeaderTransfer(int64_t rid);
-int32_t syncLeaderTransferTo(int64_t rid, SNodeInfo newLeader);
-
 int32_t syncBeginSnapshot(int64_t rid, int64_t lastApplyIndex);
 int32_t syncEndSnapshot(int64_t rid);
-
 int32_t syncStepDown(int64_t rid, SyncTerm newTerm);
 
-SSyncNode* syncNodeAcquire(int64_t rid);
-void       syncNodeRelease(SSyncNode* pNode);
+int32_t syncProcessMsg(int64_t rid, SRpcMsg* pMsg);
 
 #ifdef __cplusplus
 }
diff --git a/include/os/osDef.h b/include/os/osDef.h
index 297d19e21a..07cd197ad7 100644
--- a/include/os/osDef.h
+++ b/include/os/osDef.h
@@ -244,6 +244,16 @@ void syslog(int unused, const char *format, ...);
 #define TD_CHARSET_LEN  64
 #define TD_TIMEZONE_LEN 96
 
+#ifdef WINDOWS
+#define TD_PATH_MAX 260
+#elif defined(PATH_MAX)
+#define TD_PATH_MAX PATH_MAX
+#elif defined(_XOPEN_PATH_MAX)
+#define TD_PATH_MAX _XOPEN_PATH_MAX
+#else
+#define TD_PATH_MAX _POSIX_PATH_MAX
+#endif
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/source/dnode/mgmt/mgmt_mnode/src/mmWorker.c b/source/dnode/mgmt/mgmt_mnode/src/mmWorker.c
index e0a39a6bf1..e50b527bac 100644
--- a/source/dnode/mgmt/mgmt_mnode/src/mmWorker.c
+++ b/source/dnode/mgmt/mgmt_mnode/src/mmWorker.c
@@ -67,24 +67,6 @@ static void mmProcessRpcMsg(SQueueInfo *pInfo, SRpcMsg *pMsg) {
   taosFreeQitem(pMsg);
 }
 
-static void mmProcessSyncCtrlMsg(SQueueInfo *pInfo, SRpcMsg *pMsg) {
-  SMnodeMgmt *pMgmt = pInfo->ahandle;
-  pMsg->info.node = pMgmt->pMnode;
-
-  const STraceId *trace = &pMsg->info.traceId;
-  dGTrace("msg:%p, get from mnode-sync-ctrl queue", pMsg);
-
-  SMsgHead *pHead = pMsg->pCont;
-  pHead->contLen = ntohl(pHead->contLen);
-  pHead->vgId = ntohl(pHead->vgId);
-
-  int32_t code = mndProcessSyncCtrlMsg(pMsg);
-
-  dGTrace("msg:%p, is freed, code:0x%x", pMsg, code);
-  rpcFreeCont(pMsg->pCont);
-  taosFreeQitem(pMsg);
-}
-
 static void mmProcessSyncMsg(SQueueInfo *pInfo, SRpcMsg *pMsg) {
   SMnodeMgmt *pMgmt = pInfo->ahandle;
   pMsg->info.node = pMgmt->pMnode;
@@ -252,7 +234,7 @@ int32_t mmStartWorker(SMnodeMgmt *pMgmt) {
       .min = 1,
       .max = 1,
       .name = "mnode-sync-ctrl",
-      .fp = (FItem)mmProcessSyncCtrlMsg,
+      .fp = (FItem)mmProcessSyncMsg,
       .param = pMgmt,
   };
   if (tSingleWorkerInit(&pMgmt->syncCtrlWorker, &scCfg) != 0) {
diff --git a/source/dnode/mgmt/mgmt_vnode/src/vmWorker.c b/source/dnode/mgmt/mgmt_vnode/src/vmWorker.c
index d5b1e18c7b..71e2ece733 100644
--- a/source/dnode/mgmt/mgmt_vnode/src/vmWorker.c
+++ b/source/dnode/mgmt/mgmt_vnode/src/vmWorker.c
@@ -133,22 +133,6 @@ static void vmProcessSyncQueue(SQueueInfo *pInfo, STaosQall *qall, int32_t numOf
   }
 }
 
-static void vmProcessSyncCtrlQueue(SQueueInfo *pInfo, STaosQall *qall, int32_t numOfMsgs) {
-  SVnodeObj *pVnode = pInfo->ahandle;
-  SRpcMsg   *pMsg = NULL;
-
-  for (int32_t i = 0; i < numOfMsgs; ++i) {
-    if (taosGetQitem(qall, (void **)&pMsg) == 0) continue;
-    const STraceId *trace = &pMsg->info.traceId;
-    dGTrace("vgId:%d, msg:%p get from vnode-sync queue", pVnode->vgId, pMsg);
-
-    int32_t code = vnodeProcessSyncCtrlMsg(pVnode->pImpl, pMsg, NULL);  // no response here
-    dGTrace("vgId:%d, msg:%p is freed, code:0x%x", pVnode->vgId, pMsg, code);
-    rpcFreeCont(pMsg->pCont);
-    taosFreeQitem(pMsg);
-  }
-}
-
 static int32_t vmPutMsgToQueue(SVnodeMgmt *pMgmt, SRpcMsg *pMsg, EQueueType qtype) {
   const STraceId *trace = &pMsg->info.traceId;
   SMsgHead       *pHead = pMsg->pCont;
@@ -317,7 +301,7 @@ int32_t vmGetQueueSize(SVnodeMgmt *pMgmt, int32_t vgId, EQueueType qtype) {
 int32_t vmAllocQueue(SVnodeMgmt *pMgmt, SVnodeObj *pVnode) {
   pVnode->pWriteQ = tWWorkerAllocQueue(&pMgmt->writePool, pVnode->pImpl, (FItems)vnodeProposeWriteMsg);
   pVnode->pSyncQ = tWWorkerAllocQueue(&pMgmt->syncPool, pVnode, (FItems)vmProcessSyncQueue);
-  pVnode->pSyncCtrlQ = tWWorkerAllocQueue(&pMgmt->syncCtrlPool, pVnode, (FItems)vmProcessSyncCtrlQueue);
+  pVnode->pSyncCtrlQ = tWWorkerAllocQueue(&pMgmt->syncCtrlPool, pVnode, (FItems)vmProcessSyncQueue);
   pVnode->pApplyQ = tWWorkerAllocQueue(&pMgmt->applyPool, pVnode->pImpl, (FItems)vnodeApplyWriteMsg);
   pVnode->pQueryQ = tQWorkerAllocQueue(&pMgmt->queryPool, pVnode, (FItem)vmProcessQueryQueue);
   pVnode->pStreamQ = tQWorkerAllocQueue(&pMgmt->streamPool, pVnode, (FItem)vmProcessStreamQueue);
diff --git a/source/dnode/mnode/impl/src/mndMain.c b/source/dnode/mnode/impl/src/mndMain.c
index 53e7b1cd26..891f2bbcd8 100644
--- a/source/dnode/mnode/impl/src/mndMain.c
+++ b/source/dnode/mnode/impl/src/mndMain.c
@@ -474,128 +474,18 @@ void mndStop(SMnode *pMnode) {
   mndCleanupTimer(pMnode);
 }
 
-int32_t mndProcessSyncCtrlMsg(SRpcMsg *pMsg) {
-  SMnode    *pMnode = pMsg->info.node;
-  SSyncMgmt *pMgmt = &pMnode->syncMgmt;
-  int32_t    code = 0;
-
-  mInfo("vgId:%d, process sync ctrl msg", 1);
-
-  if (!syncIsInit()) {
-    mError("failed to process sync msg:%p type:%s since syncEnv stop", pMsg, TMSG_INFO(pMsg->msgType));
-    terrno = TSDB_CODE_SYN_INTERNAL_ERROR;
-    return -1;
-  }
-
-  SSyncNode *pSyncNode = syncNodeAcquire(pMgmt->sync);
-  if (pSyncNode == NULL) {
-    mError("failed to process sync msg:%p type:%s since syncNode is null", pMsg, TMSG_INFO(pMsg->msgType));
-    terrno = TSDB_CODE_SYN_INTERNAL_ERROR;
-    return -1;
-  }
-
-  if (pMsg->msgType == TDMT_SYNC_HEARTBEAT) {
-    SyncHeartbeat *pSyncMsg = syncHeartbeatFromRpcMsg2(pMsg);
-    code = syncNodeOnHeartbeat(pSyncNode, pSyncMsg);
-    syncHeartbeatDestroy(pSyncMsg);
-
-  } else if (pMsg->msgType == TDMT_SYNC_HEARTBEAT_REPLY) {
-    SyncHeartbeatReply *pSyncMsg = syncHeartbeatReplyFromRpcMsg2(pMsg);
-    code = syncNodeOnHeartbeatReply(pSyncNode, pSyncMsg);
-    syncHeartbeatReplyDestroy(pSyncMsg);
-  }
-
-  syncNodeRelease(pSyncNode);
-
-  if (code != 0) {
-    terrno = TSDB_CODE_SYN_INTERNAL_ERROR;
-  }
-  return code;
-}
-
 int32_t mndProcessSyncMsg(SRpcMsg *pMsg) {
   SMnode    *pMnode = pMsg->info.node;
   SSyncMgmt *pMgmt = &pMnode->syncMgmt;
-  int32_t    code = 0;
 
-  if (!syncIsInit()) {
-    mError("failed to process sync msg:%p type:%s since syncEnv stop", pMsg, TMSG_INFO(pMsg->msgType));
-    terrno = TSDB_CODE_SYN_INTERNAL_ERROR;
-    return -1;
-  }
-
-  SSyncNode *pSyncNode = syncNodeAcquire(pMgmt->sync);
-  if (pSyncNode == NULL) {
-    mError("failed to process sync msg:%p type:%s since syncNode is null", pMsg, TMSG_INFO(pMsg->msgType));
-    terrno = TSDB_CODE_SYN_INTERNAL_ERROR;
-    return -1;
-  }
-
-  if (pMsg->msgType == TDMT_SYNC_TIMEOUT) {
-    SyncTimeout *pSyncMsg = syncTimeoutFromRpcMsg2(pMsg);
-    code = syncNodeOnTimer(pSyncNode, pSyncMsg);
-    syncTimeoutDestroy(pSyncMsg);
-
-  } else if (pMsg->msgType == TDMT_SYNC_PING) {
-    SyncPing *pSyncMsg = syncPingFromRpcMsg2(pMsg);
-    code = syncNodeOnPing(pSyncNode, pSyncMsg);
-    syncPingDestroy(pSyncMsg);
-
-  } else if (pMsg->msgType == TDMT_SYNC_PING_REPLY) {
-    SyncPingReply *pSyncMsg = syncPingReplyFromRpcMsg2(pMsg);
-    code = syncNodeOnPingReply(pSyncNode, pSyncMsg);
-    syncPingReplyDestroy(pSyncMsg);
-
-  } else if (pMsg->msgType == TDMT_SYNC_CLIENT_REQUEST) {
-    SyncClientRequest *pSyncMsg = syncClientRequestFromRpcMsg2(pMsg);
-    code = syncNodeOnClientRequest(pSyncNode, pSyncMsg, NULL);
-    syncClientRequestDestroy(pSyncMsg);
-
-  } else if (pMsg->msgType == TDMT_SYNC_REQUEST_VOTE) {
-    SyncRequestVote *pSyncMsg = syncRequestVoteFromRpcMsg2(pMsg);
-    code = syncNodeOnRequestVote(pSyncNode, pSyncMsg);
-    syncRequestVoteDestroy(pSyncMsg);
-
-  } else if (pMsg->msgType == TDMT_SYNC_REQUEST_VOTE_REPLY) {
-    SyncRequestVoteReply *pSyncMsg = syncRequestVoteReplyFromRpcMsg2(pMsg);
-    code = syncNodeOnRequestVoteReply(pSyncNode, pSyncMsg);
-    syncRequestVoteReplyDestroy(pSyncMsg);
-
-  } else if (pMsg->msgType == TDMT_SYNC_APPEND_ENTRIES) {
-    SyncAppendEntries *pSyncMsg = syncAppendEntriesFromRpcMsg2(pMsg);
-    code = syncNodeOnAppendEntries(pSyncNode, pSyncMsg);
-    syncAppendEntriesDestroy(pSyncMsg);
-
-  } else if (pMsg->msgType == TDMT_SYNC_APPEND_ENTRIES_REPLY) {
-    SyncAppendEntriesReply *pSyncMsg = syncAppendEntriesReplyFromRpcMsg2(pMsg);
-    code = syncNodeOnAppendEntriesReply(pSyncNode, pSyncMsg);
-    syncAppendEntriesReplyDestroy(pSyncMsg);
-
-  } else if (pMsg->msgType == TDMT_SYNC_SNAPSHOT_SEND) {
-    SyncSnapshotSend *pSyncMsg = syncSnapshotSendFromRpcMsg2(pMsg);
-    code = syncNodeOnSnapshot(pSyncNode, pSyncMsg);
-    syncSnapshotSendDestroy(pSyncMsg);
-
-  } else if (pMsg->msgType == TDMT_SYNC_SNAPSHOT_RSP) {
-    SyncSnapshotRsp *pSyncMsg = syncSnapshotRspFromRpcMsg2(pMsg);
-    code = syncNodeOnSnapshotReply(pSyncNode, pSyncMsg);
-    syncSnapshotRspDestroy(pSyncMsg);
-
-  } else if (pMsg->msgType == TDMT_SYNC_LOCAL_CMD) {
-    SyncLocalCmd *pSyncMsg = syncLocalCmdFromRpcMsg2(pMsg);
-    code = syncNodeOnLocalCmd(pSyncNode, pSyncMsg);
-    syncLocalCmdDestroy(pSyncMsg);
-
-  } else {
-    mError("failed to process msg:%p since invalid type:%s", pMsg, TMSG_INFO(pMsg->msgType));
-    code = -1;
-  }
-
-  syncNodeRelease(pSyncNode);
+  const STraceId *trace = &pMsg->info.traceId;
+  mGTrace("vgId:1, sync msg:%p will be processed, type:%s", pMsg, TMSG_INFO(pMsg->msgType));
 
+  int32_t code = syncProcessMsg(pMgmt->sync, pMsg);
   if (code != 0) {
-    terrno = TSDB_CODE_SYN_INTERNAL_ERROR;
+    mGError("vgId:1, failed to process sync msg:%p type:%s since %s", pMsg, TMSG_INFO(pMsg->msgType), terrstr());
   }
+
   return code;
 }
 
diff --git a/source/dnode/vnode/inc/vnode.h b/source/dnode/vnode/inc/vnode.h
index ba3b7284ce..020d2b6049 100644
--- a/source/dnode/vnode/inc/vnode.h
+++ b/source/dnode/vnode/inc/vnode.h
@@ -83,7 +83,6 @@ int32_t vnodePreprocessQueryMsg(SVnode *pVnode, SRpcMsg *pMsg);
 
 int32_t vnodeProcessWriteMsg(SVnode *pVnode, SRpcMsg *pMsg, int64_t version, SRpcMsg *pRsp);
 int32_t vnodeProcessSyncMsg(SVnode *pVnode, SRpcMsg *pMsg, SRpcMsg **pRsp);
-int32_t vnodeProcessSyncCtrlMsg(SVnode *pVnode, SRpcMsg *pMsg, SRpcMsg **pRsp);
 int32_t vnodeProcessQueryMsg(SVnode *pVnode, SRpcMsg *pMsg);
 int32_t vnodeProcessFetchMsg(SVnode *pVnode, SRpcMsg *pMsg, SQueueInfo *pInfo);
 void    vnodeProposeWriteMsg(SQueueInfo *pInfo, STaosQall *qall, int32_t numOfMsgs);
diff --git a/source/dnode/vnode/src/tsdb/tsdbOpen.c b/source/dnode/vnode/src/tsdb/tsdbOpen.c
index efc74b68ba..bb20a9b012 100644
--- a/source/dnode/vnode/src/tsdb/tsdbOpen.c
+++ b/source/dnode/vnode/src/tsdb/tsdbOpen.c
@@ -48,7 +48,7 @@ int tsdbOpen(SVnode *pVnode, STsdb **ppTsdb, const char *dir, STsdbKeepCfg *pKee
   }
 
   pTsdb->path = (char *)&pTsdb[1];
-  sprintf(pTsdb->path, "%s%s%s", pVnode->path, TD_DIRSEP, dir);
+  snprintf(pTsdb->path, TD_PATH_MAX, "%s%s%s", pVnode->path, TD_DIRSEP, dir);
   taosRealPath(pTsdb->path, NULL, slen);
   pTsdb->pVnode = pVnode;
   taosThreadRwlockInit(&pTsdb->rwLock, NULL);
diff --git a/source/dnode/vnode/src/tsdb/tsdbRead.c b/source/dnode/vnode/src/tsdb/tsdbRead.c
index 664bc0bc15..a963b8eb8b 100644
--- a/source/dnode/vnode/src/tsdb/tsdbRead.c
+++ b/source/dnode/vnode/src/tsdb/tsdbRead.c
@@ -78,6 +78,7 @@ typedef struct SIOCostSummary {
   double  lastBlockLoadTime;
   int64_t composedBlocks;
   double  buildComposedBlockTime;
+  double  createScanInfoList;
 } SIOCostSummary;
 
 typedef struct SBlockLoadSuppInfo {
@@ -240,6 +241,8 @@ static SHashObj* createDataBlockScanInfo(STsdbReader* pTsdbReader, const STableK
     return NULL;
   }
 
+  int64_t st = taosGetTimestampUs();
+
   for (int32_t j = 0; j < numOfTables; ++j) {
     STableBlockScanInfo info = {.lastKey = 0, .uid = idList[j].uid};
     if (ASCENDING_TRAVERSE(pTsdbReader->order)) {
@@ -255,8 +258,10 @@ static SHashObj* createDataBlockScanInfo(STsdbReader* pTsdbReader, const STableK
               pTsdbReader->idStr);
   }
 
-  tsdbDebug("%p create %d tables scan-info, size:%.2f Kb, %s", pTsdbReader, numOfTables,
-            (sizeof(STableBlockScanInfo) * numOfTables) / 1024.0, pTsdbReader->idStr);
+  pTsdbReader->cost.createScanInfoList = (taosGetTimestampUs() - st) / 1000.0;
+  tsdbDebug("%p create %d tables scan-info, size:%.2f Kb, elapsed time:%.2f ms, %s", pTsdbReader, numOfTables,
+            (sizeof(STableBlockScanInfo) * numOfTables) / 1024.0, pTsdbReader->cost.createScanInfoList,
+            pTsdbReader->idStr);
 
   return pTableMap;
 }
@@ -3698,15 +3703,16 @@ void tsdbReaderClose(STsdbReader* pReader) {
     taosMemoryFree(pLReader);
   }
 
-  tsdbDebug(
-      "%p :io-cost summary: head-file:%" PRIu64 ", head-file time:%.2f ms, SMA:%" PRId64
-      " SMA-time:%.2f ms, fileBlocks:%" PRId64
-      ", fileBlocks-load-time:%.2f ms, "
-      "build in-memory-block-time:%.2f ms, lastBlocks:%" PRId64 ", lastBlocks-time:%.2f ms, composed-blocks:%" PRId64
-      ", composed-blocks-time:%.2fms, STableBlockScanInfo size:%.2f Kb %s",
-      pReader, pCost->headFileLoad, pCost->headFileLoadTime, pCost->smaDataLoad, pCost->smaLoadTime, pCost->numOfBlocks,
-      pCost->blockLoadTime, pCost->buildmemBlock, pCost->lastBlockLoad, pCost->lastBlockLoadTime, pCost->composedBlocks,
-      pCost->buildComposedBlockTime, numOfTables * sizeof(STableBlockScanInfo) / 1000.0, pReader->idStr);
+  tsdbDebug("%p :io-cost summary: head-file:%" PRIu64 ", head-file time:%.2f ms, SMA:%" PRId64
+            " SMA-time:%.2f ms, fileBlocks:%" PRId64
+            ", fileBlocks-load-time:%.2f ms, "
+            "build in-memory-block-time:%.2f ms, lastBlocks:%" PRId64
+            ", lastBlocks-time:%.2f ms, composed-blocks:%" PRId64
+            ", composed-blocks-time:%.2fms, STableBlockScanInfo size:%.2f Kb, creatTime:%.2f ms, %s",
+            pReader, pCost->headFileLoad, pCost->headFileLoadTime, pCost->smaDataLoad, pCost->smaLoadTime,
+            pCost->numOfBlocks, pCost->blockLoadTime, pCost->buildmemBlock, pCost->lastBlockLoad,
+            pCost->lastBlockLoadTime, pCost->composedBlocks, pCost->buildComposedBlockTime,
+            numOfTables * sizeof(STableBlockScanInfo) / 1000.0, pCost->createScanInfoList, pReader->idStr);
 
   taosMemoryFree(pReader->idStr);
   taosMemoryFree(pReader->pSchema);
diff --git a/source/dnode/vnode/src/vnd/vnodeSync.c b/source/dnode/vnode/src/vnd/vnodeSync.c
index 11cea8e88a..478e20d1ab 100644
--- a/source/dnode/vnode/src/vnd/vnodeSync.c
+++ b/source/dnode/vnode/src/vnd/vnodeSync.c
@@ -230,142 +230,16 @@ void vnodeApplyWriteMsg(SQueueInfo *pInfo, STaosQall *qall, int32_t numOfMsgs) {
   }
 }
 
-int32_t vnodeProcessSyncCtrlMsg(SVnode *pVnode, SRpcMsg *pMsg, SRpcMsg **pRsp) {
-  int32_t         code = 0;
-  const STraceId *trace = &pMsg->info.traceId;
-
-  if (!syncIsInit()) {
-    vGError("vgId:%d, msg:%p failed to process since sync env not start", pVnode->config.vgId, pMsg);
-    terrno = TSDB_CODE_APP_ERROR;
-    return -1;
-  }
-
-  SSyncNode *pSyncNode = syncNodeAcquire(pVnode->sync);
-  if (pSyncNode == NULL) {
-    vGError("vgId:%d, msg:%p failed to process since invalid sync node", pVnode->config.vgId, pMsg);
-    terrno = TSDB_CODE_SYN_INTERNAL_ERROR;
-    return -1;
-  }
-
-  vGTrace("vgId:%d, sync msg:%p will be processed, type:%s", pVnode->config.vgId, pMsg, TMSG_INFO(pMsg->msgType));
-
-  if (pMsg->msgType == TDMT_SYNC_HEARTBEAT) {
-    SyncHeartbeat *pSyncMsg = syncHeartbeatFromRpcMsg2(pMsg);
-    code = syncNodeOnHeartbeat(pSyncNode, pSyncMsg);
-    syncHeartbeatDestroy(pSyncMsg);
-
-  } else if (pMsg->msgType == TDMT_SYNC_HEARTBEAT_REPLY) {
-    SyncHeartbeatReply *pSyncMsg = syncHeartbeatReplyFromRpcMsg2(pMsg);
-    code = syncNodeOnHeartbeatReply(pSyncNode, pSyncMsg);
-    syncHeartbeatReplyDestroy(pSyncMsg);
-
-  } else {
-    vGError("vgId:%d, msg:%p failed to process since error msg type:%d", pVnode->config.vgId, pMsg, pMsg->msgType);
-    code = -1;
-  }
-
-  vTrace("vgId:%d, sync msg:%p is processed, type:%s code:0x%x", pVnode->config.vgId, pMsg, TMSG_INFO(pMsg->msgType),
-         code);
-  syncNodeRelease(pSyncNode);
-  if (code != 0 && terrno == 0) {
-    terrno = TSDB_CODE_SYN_INTERNAL_ERROR;
-  }
-  return code;
-}
-
 int32_t vnodeProcessSyncMsg(SVnode *pVnode, SRpcMsg *pMsg, SRpcMsg **pRsp) {
-  int32_t         code = 0;
   const STraceId *trace = &pMsg->info.traceId;
-
-  if (!syncIsInit()) {
-    vGError("vgId:%d, msg:%p failed to process since sync env not start", pVnode->config.vgId, pMsg);
-    terrno = TSDB_CODE_APP_ERROR;
-    return -1;
-  }
-
-  SSyncNode *pSyncNode = syncNodeAcquire(pVnode->sync);
-  if (pSyncNode == NULL) {
-    vGError("vgId:%d, msg:%p failed to process since invalid sync node", pVnode->config.vgId, pMsg);
-    terrno = TSDB_CODE_SYN_INTERNAL_ERROR;
-    return -1;
-  }
-
   vGTrace("vgId:%d, sync msg:%p will be processed, type:%s", pVnode->config.vgId, pMsg, TMSG_INFO(pMsg->msgType));
 
-  if (pMsg->msgType == TDMT_SYNC_TIMEOUT) {
-    SyncTimeout *pSyncMsg = syncTimeoutFromRpcMsg2(pMsg);
-    ASSERT(pSyncMsg != NULL);
-    code = syncNodeOnTimer(pSyncNode, pSyncMsg);
-    syncTimeoutDestroy(pSyncMsg);
-
-  } else if (pMsg->msgType == TDMT_SYNC_PING) {
-    SyncPing *pSyncMsg = syncPingFromRpcMsg2(pMsg);
-    ASSERT(pSyncMsg != NULL);
-    code = syncNodeOnPing(pSyncNode, pSyncMsg);
-    syncPingDestroy(pSyncMsg);
-
-  } else if (pMsg->msgType == TDMT_SYNC_PING_REPLY) {
-    SyncPingReply *pSyncMsg = syncPingReplyFromRpcMsg2(pMsg);
-    ASSERT(pSyncMsg != NULL);
-    code = syncNodeOnPingReply(pSyncNode, pSyncMsg);
-    syncPingReplyDestroy(pSyncMsg);
-
-  } else if (pMsg->msgType == TDMT_SYNC_CLIENT_REQUEST) {
-    SyncClientRequest *pSyncMsg = syncClientRequestFromRpcMsg2(pMsg);
-    ASSERT(pSyncMsg != NULL);
-    code = syncNodeOnClientRequest(pSyncNode, pSyncMsg, NULL);
-    syncClientRequestDestroy(pSyncMsg);
-
-  } else if (pMsg->msgType == TDMT_SYNC_REQUEST_VOTE) {
-    SyncRequestVote *pSyncMsg = syncRequestVoteFromRpcMsg2(pMsg);
-    ASSERT(pSyncMsg != NULL);
-    code = syncNodeOnRequestVote(pSyncNode, pSyncMsg);
-    syncRequestVoteDestroy(pSyncMsg);
-
-  } else if (pMsg->msgType == TDMT_SYNC_REQUEST_VOTE_REPLY) {
-    SyncRequestVoteReply *pSyncMsg = syncRequestVoteReplyFromRpcMsg2(pMsg);
-    ASSERT(pSyncMsg != NULL);
-    code = syncNodeOnRequestVoteReply(pSyncNode, pSyncMsg);
-    syncRequestVoteReplyDestroy(pSyncMsg);
-
-  } else if (pMsg->msgType == TDMT_SYNC_APPEND_ENTRIES) {
-    SyncAppendEntries *pSyncMsg = syncAppendEntriesFromRpcMsg2(pMsg);
-    ASSERT(pSyncMsg != NULL);
-    code = syncNodeOnAppendEntries(pSyncNode, pSyncMsg);
-    syncAppendEntriesDestroy(pSyncMsg);
-
-  } else if (pMsg->msgType == TDMT_SYNC_APPEND_ENTRIES_REPLY) {
-    SyncAppendEntriesReply *pSyncMsg = syncAppendEntriesReplyFromRpcMsg2(pMsg);
-    ASSERT(pSyncMsg != NULL);
-    code = syncNodeOnAppendEntriesReply(pSyncNode, pSyncMsg);
-    syncAppendEntriesReplyDestroy(pSyncMsg);
-
-  } else if (pMsg->msgType == TDMT_SYNC_SNAPSHOT_SEND) {
-    SyncSnapshotSend *pSyncMsg = syncSnapshotSendFromRpcMsg2(pMsg);
-    code = syncNodeOnSnapshot(pSyncNode, pSyncMsg);
-    syncSnapshotSendDestroy(pSyncMsg);
-
-  } else if (pMsg->msgType == TDMT_SYNC_SNAPSHOT_RSP) {
-    SyncSnapshotRsp *pSyncMsg = syncSnapshotRspFromRpcMsg2(pMsg);
-    code = syncNodeOnSnapshotReply(pSyncNode, pSyncMsg);
-    syncSnapshotRspDestroy(pSyncMsg);
-
-  } else if (pMsg->msgType == TDMT_SYNC_LOCAL_CMD) {
-    SyncLocalCmd *pSyncMsg = syncLocalCmdFromRpcMsg2(pMsg);
-    code = syncNodeOnLocalCmd(pSyncNode, pSyncMsg);
-    syncLocalCmdDestroy(pSyncMsg);
-
-  } else {
-    vGError("vgId:%d, msg:%p failed to process since error msg type:%d", pVnode->config.vgId, pMsg, pMsg->msgType);
-    code = -1;
+  int32_t code = syncProcessMsg(pVnode->sync, pMsg);
+  if (code != 0) {
+    vGError("vgId:%d, failed to process sync msg:%p type:%s since %s", pVnode->config.vgId, pMsg,
+           TMSG_INFO(pMsg->msgType), terrstr());
   }
 
-  vTrace("vgId:%d, sync msg:%p is processed, type:%s code:0x%x", pVnode->config.vgId, pMsg, TMSG_INFO(pMsg->msgType),
-         code);
-  syncNodeRelease(pSyncNode);
-  if (code != 0 && terrno == 0) {
-    terrno = TSDB_CODE_SYN_INTERNAL_ERROR;
-  }
   return code;
 }
 
diff --git a/source/libs/executor/inc/executil.h b/source/libs/executor/inc/executil.h
index 76a3359b5b..fd8a357a8b 100644
--- a/source/libs/executor/inc/executil.h
+++ b/source/libs/executor/inc/executil.h
@@ -96,11 +96,12 @@ typedef struct SColMatchInfo {
   int32_t matchType;  // determinate the source according to col id or slot id
 } SColMatchInfo;
 
+typedef struct SExecTaskInfo SExecTaskInfo;
 typedef struct STableListInfo STableListInfo;
 struct SqlFunctionCtx;
 
 int32_t createScanTableListInfo(SScanPhysiNode* pScanNode, SNodeList* pGroupTags, bool groupSort, SReadHandle* pHandle,
-                                STableListInfo* pTableListInfo, SNode* pTagCond, SNode* pTagIndexCond, const char* id);
+                                STableListInfo* pTableListInfo, SNode* pTagCond, SNode* pTagIndexCond, SExecTaskInfo* pTaskInfo);
 
 STableListInfo* tableListCreate();
 void*          tableListDestroy(STableListInfo* pTableListInfo);
diff --git a/source/libs/executor/inc/executorimpl.h b/source/libs/executor/inc/executorimpl.h
index 3364e6d079..14159c2da2 100644
--- a/source/libs/executor/inc/executorimpl.h
+++ b/source/libs/executor/inc/executorimpl.h
@@ -89,25 +89,10 @@ typedef struct STableScanAnalyzeInfo SFileBlockLoadRecorder;
 typedef struct STaskCostInfo {
   int64_t  created;
   int64_t  start;
-  uint64_t loadStatisTime;
-  uint64_t loadFileBlockTime;
-  uint64_t loadDataInCacheTime;
-  uint64_t loadStatisSize;
-  uint64_t loadFileBlockSize;
-  uint64_t loadDataInCacheSize;
-
-  uint64_t loadDataTime;
-
+  uint64_t elapsedTime;
+  double   extractListTime;
+  double   groupIdMapTime;
   SFileBlockLoadRecorder* pRecoder;
-  uint64_t                elapsedTime;
-
-  uint64_t winInfoSize;
-  uint64_t tableInfoSize;
-  uint64_t hashSize;
-  uint64_t numOfTimeWindows;
-
-  SArray*   queryProfEvents;      // SArray<SQueryProfEvent>
-  SHashObj* operatorProfResults;  // map<operator_type, SQueryProfEvent>
 } STaskCostInfo;
 
 typedef struct SOperatorCostInfo {
diff --git a/source/libs/executor/src/executil.c b/source/libs/executor/src/executil.c
index 67405aad92..32386a72fd 100644
--- a/source/libs/executor/src/executil.c
+++ b/source/libs/executor/src/executil.c
@@ -1888,8 +1888,9 @@ int32_t buildGroupIdMapForAllTables(STableListInfo* pTableListInfo, SReadHandle*
 
 int32_t createScanTableListInfo(SScanPhysiNode* pScanNode, SNodeList* pGroupTags, bool groupSort, SReadHandle* pHandle,
                                 STableListInfo* pTableListInfo, SNode* pTagCond, SNode* pTagIndexCond,
-                                const char* idStr) {
+                                struct SExecTaskInfo* pTaskInfo) {
   int64_t st = taosGetTimestampUs();
+  const char* idStr = GET_TASKID(pTaskInfo);
 
   if (pHandle == NULL) {
     qError("invalid handle, in creating operator tree, %s", idStr);
@@ -1905,7 +1906,8 @@ int32_t createScanTableListInfo(SScanPhysiNode* pScanNode, SNodeList* pGroupTags
   ASSERT(pTableListInfo->numOfOuputGroups == 1);
 
   int64_t st1 = taosGetTimestampUs();
-  qDebug("generate queried table list completed, elapsed time:%.2f ms %s", (st1 - st) / 1000.0, idStr);
+  pTaskInfo->cost.extractListTime = (st1 - st) / 1000.0;
+  qDebug("extract queried table list completed, elapsed time:%.2f ms %s", pTaskInfo->cost.extractListTime, idStr);
 
   if (taosArrayGetSize(pTableListInfo->pTableList) == 0) {
     qDebug("no table qualified for query, %s" PRIx64, idStr);
@@ -1917,8 +1919,8 @@ int32_t createScanTableListInfo(SScanPhysiNode* pScanNode, SNodeList* pGroupTags
     return code;
   }
 
-  int64_t st2 = taosGetTimestampUs();
-  qDebug("generate group id map completed, elapsed time:%.2f ms %s", (st2 - st1) / 1000.0, idStr);
+  pTaskInfo->cost.groupIdMapTime = (taosGetTimestampUs() - st1)/1000.0;
+  qDebug("generate group id map completed, elapsed time:%.2f ms %s", pTaskInfo->cost.groupIdMapTime, idStr);
 
   return TSDB_CODE_SUCCESS;
 }
diff --git a/source/libs/executor/src/executorimpl.c b/source/libs/executor/src/executorimpl.c
index 286885d018..13a3712f0c 100644
--- a/source/libs/executor/src/executorimpl.c
+++ b/source/libs/executor/src/executorimpl.c
@@ -1400,40 +1400,18 @@ void doBuildResultDatablock(SOperatorInfo* pOperator, SOptrBasicInfo* pbInfo, SG
   }
 }
 
-static int32_t compressQueryColData(SColumnInfoData* pColRes, int32_t numOfRows, char* data, int8_t compressed) {
-  int32_t colSize = pColRes->info.bytes * numOfRows;
-  return (*(tDataTypes[pColRes->info.type].compFunc))(pColRes->pData, colSize, numOfRows, data,
-                                                      colSize + COMP_OVERFLOW_BYTES, compressed, NULL, 0);
-}
-
 void queryCostStatis(SExecTaskInfo* pTaskInfo) {
   STaskCostInfo* pSummary = &pTaskInfo->cost;
 
-  //  uint64_t hashSize = taosHashGetMemSize(pQInfo->runtimeEnv.pResultRowHashTable);
-  //  hashSize += taosHashGetMemSize(pRuntimeEnv->tableqinfoGroupInfo.map);
-  //  pSummary->hashSize = hashSize;
-
-  //  SResultRowPool* p = pTaskInfo->pool;
-  //  if (p != NULL) {
-  //    pSummary->winInfoSize = getResultRowPoolMemSize(p);
-  //    pSummary->numOfTimeWindows = getNumOfAllocatedResultRows(p);
-  //  } else {
-  //    pSummary->winInfoSize = 0;
-  //    pSummary->numOfTimeWindows = 0;
-  //  }
-
   SFileBlockLoadRecorder* pRecorder = pSummary->pRecoder;
   if (pSummary->pRecoder != NULL) {
     qDebug(
-        "%s :cost summary: elapsed time:%.2f ms, total blocks:%d, load block SMA:%d, load data block:%d, total "
-        "rows:%" PRId64 ", check rows:%" PRId64,
-        GET_TASKID(pTaskInfo), pSummary->elapsedTime / 1000.0, pRecorder->totalBlocks, pRecorder->loadBlockStatis,
-        pRecorder->loadBlocks, pRecorder->totalRows, pRecorder->totalCheckedRows);
+        "%s :cost summary: elapsed time:%.2f ms, extract tableList:%.2f ms, createGroupIdMap:%.2f ms, total blocks:%d, "
+        "load block SMA:%d, load data block:%d, total rows:%" PRId64 ", check rows:%" PRId64,
+        GET_TASKID(pTaskInfo), pSummary->elapsedTime / 1000.0, pSummary->extractListTime, pSummary->groupIdMapTime,
+        pRecorder->totalBlocks, pRecorder->loadBlockStatis, pRecorder->loadBlocks, pRecorder->totalRows,
+        pRecorder->totalCheckedRows);
   }
-
-  // qDebug("QInfo:0x%"PRIx64" :cost summary: winResPool size:%.2f Kb, numOfWin:%"PRId64", tableInfoSize:%.2f Kb,
-  // hashTable:%.2f Kb", pQInfo->qId, pSummary->winInfoSize/1024.0,
-  //      pSummary->numOfTimeWindows, pSummary->tableInfoSize/1024.0, pSummary->hashSize/1024.0);
 }
 
 // static void updateOffsetVal(STaskRuntimeEnv *pRuntimeEnv, SDataBlockInfo *pBlockInfo) {
@@ -3220,6 +3198,11 @@ SOperatorInfo* createFillOperatorInfo(SOperatorInfo* downstream, SFillPhysiNode*
 
 static SExecTaskInfo* createExecTaskInfo(uint64_t queryId, uint64_t taskId, EOPTR_EXEC_MODEL model, char* dbFName) {
   SExecTaskInfo* pTaskInfo = taosMemoryCalloc(1, sizeof(SExecTaskInfo));
+  if (pTaskInfo == NULL) {
+    terrno = TSDB_CODE_OUT_OF_MEMORY;
+    return NULL;
+  }
+
   setTaskStatus(pTaskInfo, TASK_NOT_COMPLETED);
 
   pTaskInfo->schemaInfo.dbname = strdup(dbFName);
@@ -3350,7 +3333,7 @@ SOperatorInfo* createOperatorTree(SPhysiNode* pPhyNode, SExecTaskInfo* pTaskInfo
 
       int32_t code =
           createScanTableListInfo(&pTableScanNode->scan, pTableScanNode->pGroupTags, pTableScanNode->groupSort, pHandle,
-                                  pTableListInfo, pTagCond, pTagIndexCond, idstr);
+                                  pTableListInfo, pTagCond, pTagIndexCond, pTaskInfo);
       if (code) {
         pTaskInfo->code = code;
         qError("failed to createScanTableListInfo, code:%s, %s", tstrerror(code), idstr);
@@ -3368,9 +3351,9 @@ SOperatorInfo* createOperatorTree(SPhysiNode* pPhyNode, SExecTaskInfo* pTaskInfo
       pTaskInfo->cost.pRecoder = &pScanInfo->readRecorder;
     } else if (QUERY_NODE_PHYSICAL_PLAN_TABLE_MERGE_SCAN == type) {
       STableMergeScanPhysiNode* pTableScanNode = (STableMergeScanPhysiNode*)pPhyNode;
-      int32_t                   code =
-          createScanTableListInfo(&pTableScanNode->scan, pTableScanNode->pGroupTags, /*pTableScanNode->groupSort*/true, pHandle,
-                                  pTableListInfo, pTagCond, pTagIndexCond, idstr);
+
+      int32_t code = createScanTableListInfo(&pTableScanNode->scan, pTableScanNode->pGroupTags, true, pHandle,
+                                             pTableListInfo, pTagCond, pTagIndexCond, pTaskInfo);
       if (code) {
         pTaskInfo->code = code;
         qError("failed to createScanTableListInfo, code: %s", tstrerror(code));
@@ -3395,7 +3378,7 @@ SOperatorInfo* createOperatorTree(SPhysiNode* pPhyNode, SExecTaskInfo* pTaskInfo
       if (pHandle->vnode) {
         int32_t code =
             createScanTableListInfo(&pTableScanNode->scan, pTableScanNode->pGroupTags, pTableScanNode->groupSort,
-                                    pHandle, pTableListInfo, pTagCond, pTagIndexCond, idstr);
+                                    pHandle, pTableListInfo, pTagCond, pTagIndexCond, pTaskInfo);
         if (code) {
           pTaskInfo->code = code;
           qError("failed to createScanTableListInfo, code: %s", tstrerror(code));
@@ -3422,7 +3405,7 @@ SOperatorInfo* createOperatorTree(SPhysiNode* pPhyNode, SExecTaskInfo* pTaskInfo
       STagScanPhysiNode* pScanPhyNode = (STagScanPhysiNode*)pPhyNode;
 
       int32_t code = createScanTableListInfo(pScanPhyNode, NULL, false, pHandle, pTableListInfo, pTagCond,
-                                             pTagIndexCond, idstr);
+                                             pTagIndexCond, pTaskInfo);
       if (code != TSDB_CODE_SUCCESS) {
         pTaskInfo->code = code;
         qError("failed to getTableList, code: %s", tstrerror(code));
@@ -3455,7 +3438,7 @@ SOperatorInfo* createOperatorTree(SPhysiNode* pPhyNode, SExecTaskInfo* pTaskInfo
       SLastRowScanPhysiNode* pScanNode = (SLastRowScanPhysiNode*)pPhyNode;
 
       int32_t code = createScanTableListInfo(&pScanNode->scan, pScanNode->pGroupTags, true, pHandle, pTableListInfo,
-                                             pTagCond, pTagIndexCond, idstr);
+                                             pTagCond, pTagIndexCond, pTaskInfo);
       if (code != TSDB_CODE_SUCCESS) {
         pTaskInfo->code = code;
         return NULL;
@@ -3787,10 +3770,8 @@ int32_t createExecTaskInfoImpl(SSubplan* pPlan, SExecTaskInfo** pTaskInfo, SRead
                                char* sql, EOPTR_EXEC_MODEL model) {
   uint64_t queryId = pPlan->id.queryId;
 
-  int32_t code = TSDB_CODE_SUCCESS;
   *pTaskInfo = createExecTaskInfo(queryId, taskId, model, pPlan->dbFName);
   if (*pTaskInfo == NULL) {
-    code = TSDB_CODE_QRY_OUT_OF_MEMORY;
     goto _complete;
   }
 
@@ -3809,17 +3790,16 @@ int32_t createExecTaskInfoImpl(SSubplan* pPlan, SExecTaskInfo** pTaskInfo, SRead
       createOperatorTree(pPlan->pNode, *pTaskInfo, pHandle, pPlan->pTagCond, pPlan->pTagIndexCond, pPlan->user);
 
   if (NULL == (*pTaskInfo)->pRoot) {
-    code = (*pTaskInfo)->code;
+    terrno = (*pTaskInfo)->code;
     goto _complete;
   }
 
-  return code;
+  return TSDB_CODE_SUCCESS;
 
-  _complete:
+_complete:
   taosMemoryFree(sql);
   doDestroyTask(*pTaskInfo);
-  terrno = code;
-  return code;
+  return terrno;
 }
 
 void doDestroyTask(SExecTaskInfo* pTaskInfo) {
diff --git a/source/libs/function/src/builtinsimpl.c b/source/libs/function/src/builtinsimpl.c
index b9acd36088..35ad10ffbf 100644
--- a/source/libs/function/src/builtinsimpl.c
+++ b/source/libs/function/src/builtinsimpl.c
@@ -2194,6 +2194,56 @@ int32_t leastSQRFunction(SqlFunctionCtx* pCtx) {
       break;
     }
 
+    case TSDB_DATA_TYPE_UTINYINT: {
+      uint8_t* plist = (uint8_t*)pCol->pData;
+      for (int32_t i = start; i < numOfRows + pInput->startRowIndex; ++i) {
+        if (pCol->hasNull && colDataIsNull_f(pCol->nullbitmap, i)) {
+          continue;
+        }
+        numOfElem++;
+        LEASTSQR_CAL(param, x, plist, i, pInfo->stepVal);
+      }
+      break;
+    }
+    case TSDB_DATA_TYPE_USMALLINT: {
+      uint16_t* plist = (uint16_t*)pCol->pData;
+      for (int32_t i = start; i < numOfRows + pInput->startRowIndex; ++i) {
+        if (pCol->hasNull && colDataIsNull_f(pCol->nullbitmap, i)) {
+          continue;
+        }
+
+        numOfElem++;
+        LEASTSQR_CAL(param, x, plist, i, pInfo->stepVal);
+      }
+      break;
+    }
+
+    case TSDB_DATA_TYPE_UINT: {
+      uint32_t* plist = (uint32_t*)pCol->pData;
+      for (int32_t i = start; i < numOfRows + pInput->startRowIndex; ++i) {
+        if (pCol->hasNull && colDataIsNull_f(pCol->nullbitmap, i)) {
+          continue;
+        }
+
+        numOfElem++;
+        LEASTSQR_CAL(param, x, plist, i, pInfo->stepVal);
+      }
+      break;
+    }
+
+    case TSDB_DATA_TYPE_UBIGINT: {
+      uint64_t* plist = (uint64_t*)pCol->pData;
+      for (int32_t i = start; i < numOfRows + pInput->startRowIndex; ++i) {
+        if (pCol->hasNull && colDataIsNull_f(pCol->nullbitmap, i)) {
+          continue;
+        }
+
+        numOfElem++;
+        LEASTSQR_CAL(param, x, plist, i, pInfo->stepVal);
+      }
+      break;
+    }
+
     case TSDB_DATA_TYPE_FLOAT: {
       float* plist = (float*)pCol->pData;
       for (int32_t i = start; i < numOfRows + pInput->startRowIndex; ++i) {
diff --git a/source/libs/sync/inc/syncInt.h b/source/libs/sync/inc/syncInt.h
index 843dee1342..5e8041e54a 100644
--- a/source/libs/sync/inc/syncInt.h
+++ b/source/libs/sync/inc/syncInt.h
@@ -302,7 +302,6 @@ int32_t syncGetSnapshotMeta(int64_t rid, struct SSnapshotMeta* sMeta);
 int32_t syncGetSnapshotMetaByIndex(int64_t rid, SyncIndex snapshotIndex, struct SSnapshotMeta* sMeta);
 
 bool syncNodeCanChange(SSyncNode* pSyncNode);
-bool syncNodeCheckNewConfig(SSyncNode* pSyncNode, const SSyncCfg* pNewCfg);
 
 int32_t syncNodeLeaderTransfer(SSyncNode* pSyncNode);
 int32_t syncNodeLeaderTransferTo(SSyncNode* pSyncNode, SNodeInfo newLeader);
diff --git a/source/libs/sync/src/syncEnv.c b/source/libs/sync/src/syncEnv.c
index c55cd4fdac..cf0d4d25e8 100644
--- a/source/libs/sync/src/syncEnv.c
+++ b/source/libs/sync/src/syncEnv.c
@@ -80,6 +80,7 @@ SSyncNode *syncNodeAcquire(int64_t rid) {
   SSyncNode *pNode = taosAcquireRef(gNodeRefId, rid);
   if (pNode == NULL) {
     sTrace("failed to acquire node from refId:%" PRId64, rid);
+    terrno = TSDB_CODE_SYN_INTERNAL_ERROR;
   }
 
   return pNode;
diff --git a/source/libs/sync/src/syncMain.c b/source/libs/sync/src/syncMain.c
index 139e4be1b9..26770a17d7 100644
--- a/source/libs/sync/src/syncMain.c
+++ b/source/libs/sync/src/syncMain.c
@@ -13,6 +13,7 @@
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
+#define _DEFAULT_SOURCE
 #include "sync.h"
 #include "syncAppendEntries.h"
 #include "syncAppendEntriesReply.h"
@@ -34,8 +35,6 @@
 #include "syncUtil.h"
 #include "syncVoteMgr.h"
 
-// ------ local funciton ---------
-// enqueue message ----
 static void    syncNodeEqPingTimer(void* param, void* tmrId);
 static void    syncNodeEqElectTimer(void* param, void* tmrId);
 static void    syncNodeEqHeartbeatTimer(void* param, void* tmrId);
@@ -44,162 +43,149 @@ static int32_t syncNodeAppendNoop(SSyncNode* ths);
 static void    syncNodeEqPeerHeartbeatTimer(void* param, void* tmrId);
 static bool    syncIsConfigChanged(const SSyncCfg* pOldCfg, const SSyncCfg* pNewCfg);
 
-// process message ----
-int32_t syncNodeOnPing(SSyncNode* ths, SyncPing* pMsg);
-int32_t syncNodeOnPingReply(SSyncNode* ths, SyncPingReply* pMsg);
-
 int64_t syncOpen(SSyncInfo* pSyncInfo) {
-  SSyncNode* pNode = syncNodeOpen(pSyncInfo);
-  if (pNode == NULL) {
+  SSyncNode* pSyncNode = syncNodeOpen(pSyncInfo);
+  if (pSyncNode == NULL) {
     sError("vgId:%d, failed to open sync node", pSyncInfo->vgId);
     return -1;
   }
 
-  pNode->rid = syncNodeAdd(pNode);
-  if (pNode->rid < 0) {
-    syncNodeClose(pNode);
+  pSyncNode->rid = syncNodeAdd(pSyncNode);
+  if (pSyncNode->rid < 0) {
+    syncNodeClose(pSyncNode);
     return -1;
   }
 
-  return pNode->rid;
+  return pSyncNode->rid;
 }
 
 void syncStart(int64_t rid) {
-  SSyncNode* pNode = syncNodeAcquire(rid);
-  if (pNode != NULL) {
-    syncNodeStart(pNode);
-    syncNodeRelease(pNode);
+  SSyncNode* pSyncNode = syncNodeAcquire(rid);
+  if (pSyncNode != NULL) {
+    syncNodeStart(pSyncNode);
+    syncNodeRelease(pSyncNode);
   }
 }
 
 void syncStop(int64_t rid) {
-  SSyncNode* pNode = syncNodeAcquire(rid);
-  if (pNode != NULL) {
-    syncNodeRelease(pNode);
+  SSyncNode* pSyncNode = syncNodeAcquire(rid);
+  if (pSyncNode != NULL) {
+    syncNodeRelease(pSyncNode);
     syncNodeRemove(rid);
   }
 }
 
-bool syncNodeCheckNewConfig(SSyncNode* pSyncNode, const SSyncCfg* pNewCfg) {
-  bool IamInNew = syncNodeInConfig(pSyncNode, pNewCfg);
-  if (!IamInNew) {
-    return false;
-  }
-
-  if (pNewCfg->replicaNum > pSyncNode->replicaNum + 1) {
-    return false;
-  }
-
-  if (pNewCfg->replicaNum < pSyncNode->replicaNum - 1) {
-    return false;
-  }
-
-  return true;
-}
-
-int32_t syncReconfigBuild(int64_t rid, const SSyncCfg* pNewCfg, SRpcMsg* pRpcMsg) {
-  SSyncNode* pSyncNode = syncNodeAcquire(rid);
-  if (pSyncNode == NULL) {
-    terrno = TSDB_CODE_SYN_INTERNAL_ERROR;
-    return -1;
-  }
-  ASSERT(rid == pSyncNode->rid);
-  int32_t ret = 0;
-
-  if (!syncNodeCheckNewConfig(pSyncNode, pNewCfg)) {
-    syncNodeRelease(pSyncNode);
-    terrno = TSDB_CODE_SYN_NEW_CONFIG_ERROR;
-    sError("invalid new config. vgId:%d", pSyncNode->vgId);
-    return -1;
-  }
-
-  char* newconfig = syncCfg2Str((SSyncCfg*)pNewCfg);
-  pRpcMsg->msgType = TDMT_SYNC_CONFIG_CHANGE;
-  pRpcMsg->info.noResp = 1;
-  pRpcMsg->contLen = strlen(newconfig) + 1;
-  pRpcMsg->pCont = rpcMallocCont(pRpcMsg->contLen);
-  snprintf(pRpcMsg->pCont, pRpcMsg->contLen, "%s", newconfig);
-  taosMemoryFree(newconfig);
-
-  syncNodeRelease(pSyncNode);
-  return ret;
+static bool syncNodeCheckNewConfig(SSyncNode* pSyncNode, const SSyncCfg* pCfg) {
+  if (!syncNodeInConfig(pSyncNode, pCfg)) return false;
+  return abs(pCfg->replicaNum - pSyncNode->replicaNum) <= 1;
 }
 
 int32_t syncReconfig(int64_t rid, SSyncCfg* pNewCfg) {
   SSyncNode* pSyncNode = syncNodeAcquire(rid);
-  if (pSyncNode == NULL) {
-    terrno = TSDB_CODE_SYN_INTERNAL_ERROR;
-    return -1;
-  }
-  ASSERT(rid == pSyncNode->rid);
+  if (pSyncNode == NULL) return -1;
 
   if (!syncNodeCheckNewConfig(pSyncNode, pNewCfg)) {
     syncNodeRelease(pSyncNode);
     terrno = TSDB_CODE_SYN_NEW_CONFIG_ERROR;
-    sError("invalid new config. vgId:%d", pSyncNode->vgId);
+    sError("vgId:%d, failed to reconfig since invalid new config", pSyncNode->vgId);
     return -1;
   }
 
-#if 0
-  char*   newconfig = syncCfg2Str((SSyncCfg*)pNewCfg);
-  int32_t ret = 0;
-
-  SRpcMsg rpcMsg = {0};
-  rpcMsg.msgType = TDMT_SYNC_CONFIG_CHANGE;
-  rpcMsg.info.noResp = 1;
-  rpcMsg.contLen = strlen(newconfig) + 1;
-  rpcMsg.pCont = rpcMallocCont(rpcMsg.contLen);
-  snprintf(rpcMsg.pCont, rpcMsg.contLen, "%s", newconfig);
-  taosMemoryFree(newconfig);
-  ret = syncNodePropose(pSyncNode, &rpcMsg, false);
-
-  syncNodeRelease(pSyncNode);
-  return ret;
-#else
   syncNodeUpdateNewConfigIndex(pSyncNode, pNewCfg);
   syncNodeDoConfigChange(pSyncNode, pNewCfg, SYNC_INDEX_INVALID);
+
   if (pSyncNode->state == TAOS_SYNC_STATE_LEADER) {
     syncNodeStopHeartbeatTimer(pSyncNode);
 
     for (int32_t i = 0; i < TSDB_MAX_REPLICA; ++i) {
-      syncHbTimerInit(pSyncNode, &(pSyncNode->peerHeartbeatTimerArr[i]), (pSyncNode->replicasId)[i]);
+      syncHbTimerInit(pSyncNode, &pSyncNode->peerHeartbeatTimerArr[i], pSyncNode->replicasId[i]);
     }
 
     syncNodeStartHeartbeatTimer(pSyncNode);
-
     syncNodeReplicate(pSyncNode);
   }
+
   syncNodeRelease(pSyncNode);
   return 0;
-#endif
+}
+
+int32_t syncProcessMsg(int64_t rid, SRpcMsg* pMsg) {
+  int32_t code = -1;
+  if (!syncIsInit()) return code;
+
+  SSyncNode* pSyncNode = syncNodeAcquire(rid);
+  if (pSyncNode == NULL) return code;
+
+  if (pMsg->msgType == TDMT_SYNC_HEARTBEAT) {
+    SyncHeartbeat* pSyncMsg = syncHeartbeatFromRpcMsg2(pMsg);
+    code = syncNodeOnHeartbeat(pSyncNode, pSyncMsg);
+    syncHeartbeatDestroy(pSyncMsg);
+  } else if (pMsg->msgType == TDMT_SYNC_HEARTBEAT_REPLY) {
+    SyncHeartbeatReply* pSyncMsg = syncHeartbeatReplyFromRpcMsg2(pMsg);
+    code = syncNodeOnHeartbeatReply(pSyncNode, pSyncMsg);
+    syncHeartbeatReplyDestroy(pSyncMsg);
+  } else if (pMsg->msgType == TDMT_SYNC_TIMEOUT) {
+    SyncTimeout* pSyncMsg = syncTimeoutFromRpcMsg2(pMsg);
+    code = syncNodeOnTimer(pSyncNode, pSyncMsg);
+    syncTimeoutDestroy(pSyncMsg);
+  } else if (pMsg->msgType == TDMT_SYNC_PING) {
+    SyncPing* pSyncMsg = syncPingFromRpcMsg2(pMsg);
+    code = syncNodeOnPing(pSyncNode, pSyncMsg);
+    syncPingDestroy(pSyncMsg);
+  } else if (pMsg->msgType == TDMT_SYNC_PING_REPLY) {
+    SyncPingReply* pSyncMsg = syncPingReplyFromRpcMsg2(pMsg);
+    code = syncNodeOnPingReply(pSyncNode, pSyncMsg);
+    syncPingReplyDestroy(pSyncMsg);
+  } else if (pMsg->msgType == TDMT_SYNC_CLIENT_REQUEST) {
+    SyncClientRequest* pSyncMsg = syncClientRequestFromRpcMsg2(pMsg);
+    code = syncNodeOnClientRequest(pSyncNode, pSyncMsg, NULL);
+    syncClientRequestDestroy(pSyncMsg);
+  } else if (pMsg->msgType == TDMT_SYNC_REQUEST_VOTE) {
+    SyncRequestVote* pSyncMsg = syncRequestVoteFromRpcMsg2(pMsg);
+    code = syncNodeOnRequestVote(pSyncNode, pSyncMsg);
+    syncRequestVoteDestroy(pSyncMsg);
+  } else if (pMsg->msgType == TDMT_SYNC_REQUEST_VOTE_REPLY) {
+    SyncRequestVoteReply* pSyncMsg = syncRequestVoteReplyFromRpcMsg2(pMsg);
+    code = syncNodeOnRequestVoteReply(pSyncNode, pSyncMsg);
+    syncRequestVoteReplyDestroy(pSyncMsg);
+  } else if (pMsg->msgType == TDMT_SYNC_APPEND_ENTRIES) {
+    SyncAppendEntries* pSyncMsg = syncAppendEntriesFromRpcMsg2(pMsg);
+    code = syncNodeOnAppendEntries(pSyncNode, pSyncMsg);
+    syncAppendEntriesDestroy(pSyncMsg);
+  } else if (pMsg->msgType == TDMT_SYNC_APPEND_ENTRIES_REPLY) {
+    SyncAppendEntriesReply* pSyncMsg = syncAppendEntriesReplyFromRpcMsg2(pMsg);
+    code = syncNodeOnAppendEntriesReply(pSyncNode, pSyncMsg);
+    syncAppendEntriesReplyDestroy(pSyncMsg);
+  } else if (pMsg->msgType == TDMT_SYNC_SNAPSHOT_SEND) {
+    SyncSnapshotSend* pSyncMsg = syncSnapshotSendFromRpcMsg2(pMsg);
+    code = syncNodeOnSnapshot(pSyncNode, pSyncMsg);
+    syncSnapshotSendDestroy(pSyncMsg);
+  } else if (pMsg->msgType == TDMT_SYNC_SNAPSHOT_RSP) {
+    SyncSnapshotRsp* pSyncMsg = syncSnapshotRspFromRpcMsg2(pMsg);
+    code = syncNodeOnSnapshotReply(pSyncNode, pSyncMsg);
+    syncSnapshotRspDestroy(pSyncMsg);
+  } else if (pMsg->msgType == TDMT_SYNC_LOCAL_CMD) {
+    SyncLocalCmd* pSyncMsg = syncLocalCmdFromRpcMsg2(pMsg);
+    code = syncNodeOnLocalCmd(pSyncNode, pSyncMsg);
+    syncLocalCmdDestroy(pSyncMsg);
+  } else {
+    sError("vgId:%d, failed to process msg:%p since invalid type:%s", pSyncNode->vgId, pMsg, TMSG_INFO(pMsg->msgType));
+    code = -1;
+  }
+
+  syncNodeRelease(pSyncNode);
+  return code;
 }
 
 int32_t syncLeaderTransfer(int64_t rid) {
   SSyncNode* pSyncNode = syncNodeAcquire(rid);
-  if (pSyncNode == NULL) {
-    terrno = TSDB_CODE_SYN_INTERNAL_ERROR;
-    return -1;
-  }
-  ASSERT(rid == pSyncNode->rid);
+  if (pSyncNode == NULL) return -1;
 
   int32_t ret = syncNodeLeaderTransfer(pSyncNode);
   syncNodeRelease(pSyncNode);
   return ret;
 }
 
-int32_t syncLeaderTransferTo(int64_t rid, SNodeInfo newLeader) {
-  SSyncNode* pSyncNode = syncNodeAcquire(rid);
-  if (pSyncNode == NULL) {
-    terrno = TSDB_CODE_SYN_INTERNAL_ERROR;
-    return -1;
-  }
-  ASSERT(rid == pSyncNode->rid);
-
-  int32_t ret = syncNodeLeaderTransferTo(pSyncNode, newLeader);
-  syncNodeRelease(pSyncNode);
-  return ret;
-}
-
 SyncIndex syncMinMatchIndex(SSyncNode* pSyncNode) {
   SyncIndex minMatchIndex = SYNC_INDEX_INVALID;
 
@@ -3676,4 +3662,4 @@ void syncLogRecvLocalCmd(SSyncNode* pSyncNode, const SyncLocalCmd* pMsg, const c
   snprintf(logBuf, sizeof(logBuf), "recv sync-local-cmd {cmd:%d-%s, sd-new-term:%" PRIu64 "}, %s", pMsg->cmd,
            syncLocalCmdGetStr(pMsg->cmd), pMsg->sdNewTerm, s);
   syncNodeEventLog(pSyncNode, logBuf);
-}
\ No newline at end of file
+}
diff --git a/tests/script/jenkins/basic.txt b/tests/script/jenkins/basic.txt
index edf105e302..1a80aa0681 100644
--- a/tests/script/jenkins/basic.txt
+++ b/tests/script/jenkins/basic.txt
@@ -322,7 +322,7 @@
 
 # --- vnode ----
 ./test.sh -f tsim/vnode/replica3_basic.sim
-# TD-20089 ./test.sh -f tsim/vnode/replica3_repeat.sim
+./test.sh -f tsim/vnode/replica3_repeat.sim
 ./test.sh -f tsim/vnode/replica3_vgroup.sim
 ./test.sh -f tsim/vnode/replica3_many.sim
 ./test.sh -f tsim/vnode/replica3_import.sim
diff --git a/tests/script/tsim/vnode/replica3_repeat.sim b/tests/script/tsim/vnode/replica3_repeat.sim
index 4902cde7c5..ccff06819b 100644
--- a/tests/script/tsim/vnode/replica3_repeat.sim
+++ b/tests/script/tsim/vnode/replica3_repeat.sim
@@ -107,7 +107,16 @@ system sh/exec.sh -n dnode2 -s stop
 sleep 3000
 
 print ======== step7
-sql select count(*) from db.tb
+$x = 0
+step7:
+	$x = $x + 1
+	sleep 1000
+	if $x == 30 then
+	  print ====> dnode not ready!
+		return -1
+	endi
+sql select count(*) from db.tb -x step7
+
 print select count(*) from db.tb ==> $data00 $lastRows 
 if $data00 <= $lastRows then
   return -1