diff --git a/include/common/tmsgdef.h b/include/common/tmsgdef.h
index bf683fc9ac4f9f5c2d7b3ad82f6fe1f9a213432b..e8e931daa50292f333b3c56cff0983ed09bb3638 100644
--- a/include/common/tmsgdef.h
+++ b/include/common/tmsgdef.h
@@ -158,7 +158,6 @@ enum {
   TD_DEF_MSG_TYPE(TDMT_MND_DROP_INDEX, "mnode-drop-index", NULL, NULL)
   TD_DEF_MSG_TYPE(TDMT_MND_GET_DB_CFG, "mnode-get-db-cfg", NULL, NULL)
   TD_DEF_MSG_TYPE(TDMT_MND_GET_INDEX, "mnode-get-index", NULL, NULL)
-  
   TD_DEF_MSG_TYPE(TDMT_MND_APPLY_MSG, "mnode-apply-msg", NULL, NULL)
 
   // Requests handled by VNODE
diff --git a/include/dnode/mnode/mnode.h b/include/dnode/mnode/mnode.h
index ec4b4dd06d5621b4b47b66aff6fe5cdda15899a1..5b028d5055a2898b84533e00f44a49d54b2d3653 100644
--- a/include/dnode/mnode/mnode.h
+++ b/include/dnode/mnode/mnode.h
@@ -89,9 +89,7 @@ int32_t mndGetLoad(SMnode *pMnode, SMnodeLoad *pLoad);
  * @return int32_t 0 for success, -1 for failure.
  */
 int32_t mndProcessMsg(SRpcMsg *pMsg);
-
 int32_t mndProcessSyncMsg(SRpcMsg *pMsg);
-
 int32_t mndProcessApplyMsg(SRpcMsg *pMsg);
 
 /**
diff --git a/source/dnode/mgmt/mgmt_mnode/src/mmWorker.c b/source/dnode/mgmt/mgmt_mnode/src/mmWorker.c
index 89d657d2d5eba1df82ddf4a9bdbb10d959befada..0f1d3252372e49bb46f731412fa64b903bf936e1 100644
--- a/source/dnode/mgmt/mgmt_mnode/src/mmWorker.c
+++ b/source/dnode/mgmt/mgmt_mnode/src/mmWorker.c
@@ -59,32 +59,17 @@ static void mmProcessQueue(SQueueInfo *pInfo, SRpcMsg *pMsg) {
 static void mmProcessSyncQueue(SQueueInfo *pInfo, SRpcMsg *pMsg) {
   SMnodeMgmt *pMgmt = pInfo->ahandle;
   pMsg->info.node = pMgmt->pMnode;
-
   mndProcessSyncMsg(pMsg);
-  return;
 }
 
 static void mmProcessApplyQueue(SQueueInfo *pInfo, SRpcMsg *pMsg) {
   SMnodeMgmt *pMgmt = pInfo->ahandle;
-  int32_t     code = -1;
-  tmsg_t      msgType = pMsg->msgType;
-  bool        isRequest = msgType & 1U;
-  dTrace("msg:%p, get from mnode-query queue", pMsg);
+  dTrace("msg:%p, get from mnode-apply queue", pMsg);
 
   pMsg->info.node = pMgmt->pMnode;
-  
   mndProcessApplyMsg(pMsg);
 
-  /*
-  if (isRequest) {
-    if (pMsg->info.handle != NULL && code != 0) {
-      if (code != 0 && terrno != 0) code = terrno;
-      mmSendRsp(pMsg, code);
-    }
-  }
-  */
-
-  dTrace("msg:%p, is freed, code:0x%x", pMsg, code);
+  dTrace("msg:%p, is freed", pMsg);
   rpcFreeCont(pMsg->pCont);
   taosFreeQitem(pMsg);
 }
diff --git a/source/dnode/mnode/impl/inc/mndInt.h b/source/dnode/mnode/impl/inc/mndInt.h
index 0982096d254b12c39a68c7d547774502af850622..16945b1403f94b09e71ec6af421376eab3fd87c7 100644
--- a/source/dnode/mnode/impl/inc/mndInt.h
+++ b/source/dnode/mnode/impl/inc/mndInt.h
@@ -19,6 +19,7 @@
 #include "mndDef.h"
 
 #include "sdb.h"
+#include "syncTools.h"
 #include "tcache.h"
 #include "tdatablock.h"
 #include "tglobal.h"
@@ -31,12 +32,14 @@
 extern "C" {
 #endif
 
+// clang-format off
 #define mFatal(...) { if (mDebugFlag & DEBUG_FATAL) { taosPrintLog("MND FATAL ", DEBUG_FATAL, 255, __VA_ARGS__); }}
 #define mError(...) { if (mDebugFlag & DEBUG_ERROR) { taosPrintLog("MND ERROR ", DEBUG_ERROR, 255, __VA_ARGS__); }}
 #define mWarn(...)  { if (mDebugFlag & DEBUG_WARN)  { taosPrintLog("MND WARN ", DEBUG_WARN, 255, __VA_ARGS__); }}
 #define mInfo(...)  { if (mDebugFlag & DEBUG_INFO)  { taosPrintLog("MND ", DEBUG_INFO, 255, __VA_ARGS__); }}
 #define mDebug(...) { if (mDebugFlag & DEBUG_DEBUG) { taosPrintLog("MND ", DEBUG_DEBUG, mDebugFlag, __VA_ARGS__); }}
 #define mTrace(...) { if (mDebugFlag & DEBUG_TRACE) { taosPrintLog("MND ", DEBUG_TRACE, mDebugFlag, __VA_ARGS__); }}
+// clang-format on
 
 #define SYSTABLE_SCH_TABLE_NAME_LEN ((TSDB_TABLE_NAME_LEN - 1) + VARSTR_HEADER_SIZE)
 #define SYSTABLE_SCH_DB_NAME_LEN    ((TSDB_DB_NAME_LEN - 1) + VARSTR_HEADER_SIZE)
@@ -75,9 +78,7 @@ typedef struct {
   int32_t    errCode;
   sem_t      syncSem;
   SWal      *pWal;
-  //SSyncNode *pSyncNode;
-  int64_t  sync;
-
+  int64_t    sync;
   ESyncState state;
 } SSyncMgmt;
 
diff --git a/source/dnode/mnode/impl/src/mndSync.c b/source/dnode/mnode/impl/src/mndSync.c
index e7144f5673ef46fe0c9c08cb8c5c0274c07e3578..d8eb021462565ad09a7f0211ad92ba7b2bc24827 100644
--- a/source/dnode/mnode/impl/src/mndSync.c
+++ b/source/dnode/mnode/impl/src/mndSync.c
@@ -125,24 +125,11 @@ _OVER:
 
 }
 
-int32_t mndSyncEqMsg(const SMsgCb* msgcb, SRpcMsg *pMsg) {
-  int32_t ret = 0;
-  if (msgcb->queueFps[SYNC_QUEUE] != NULL) {
-    tmsgPutToQueue(msgcb, SYNC_QUEUE, pMsg);
-  } else {
-    mError("mndSyncEqMsg queue is NULL, SYNC_QUEUE:%d", SYNC_QUEUE);
-  }
-  return ret;
-}
+int32_t mndSyncEqMsg(const SMsgCb *msgcb, SRpcMsg *pMsg) { return tmsgPutToQueue(msgcb, SYNC_QUEUE, pMsg); }
 
-int32_t mndSendMsg(const SEpSet *pEpSet, SRpcMsg *pMsg) {
-  int32_t ret = 0;
-  pMsg->info.noResp = 1;
-  tmsgSendReq(pEpSet, pMsg);
-  return ret;
-}
+int32_t mndSyncSendMsg(const SEpSet *pEpSet, SRpcMsg *pMsg) { return tmsgSendReq(pEpSet, pMsg); }
 
-void mndSyncCommitCb(struct SSyncFSM *pFsm, const SRpcMsg *pMsg, SFsmCbMeta cbMeta) {
+void mndSyncCommitMsg(struct SSyncFSM *pFsm, const SRpcMsg *pMsg, SFsmCbMeta cbMeta) {
   SyncIndex beginIndex = SYNC_INDEX_INVALID;
   if (pFsm->FpGetSnapshot != NULL) {
     SSnapshot snapshot;
@@ -163,26 +150,26 @@ void mndSyncCommitCb(struct SSyncFSM *pFsm, const SRpcMsg *pMsg, SFsmCbMeta cbMe
   }
 }
 
-void mndSyncPreCommitCb(struct SSyncFSM *pFsm, const SRpcMsg *pMsg, SFsmCbMeta cbMeta) {
+void mndSyncPreCommitMsg(struct SSyncFSM *pFsm, const SRpcMsg *pMsg, SFsmCbMeta cbMeta) {
   // strict consistent, do nothing
 }
 
-void mndSyncRollBackCb(struct SSyncFSM *pFsm, const SRpcMsg *pMsg, SFsmCbMeta cbMeta) {
+void mndSyncRollBackMsg(struct SSyncFSM *pFsm, const SRpcMsg *pMsg, SFsmCbMeta cbMeta) {
   // strict consistent, do nothing
 }
 
-int32_t mndSyncGetSnapshotCb(struct SSyncFSM *pFsm, SSnapshot *pSnapshot) {
+int32_t mndSyncGetSnapshot(struct SSyncFSM *pFsm, SSnapshot *pSnapshot) {
   // snapshot
   return 0;
 }
 
-SSyncFSM *syncMnodeMakeFsm(SMnode *pMnode) {
-  SSyncFSM *pFsm = (SSyncFSM *)taosMemoryMalloc(sizeof(SSyncFSM));
+SSyncFSM *mndSyncMakeFsm(SMnode *pMnode) {
+  SSyncFSM *pFsm = taosMemoryCalloc(1, sizeof(SSyncFSM));
   pFsm->data = pMnode;
-  pFsm->FpCommitCb = mndSyncCommitCb;
-  pFsm->FpPreCommitCb = mndSyncPreCommitCb;
-  pFsm->FpRollBackCb = mndSyncRollBackCb;
-  pFsm->FpGetSnapshot = mndSyncGetSnapshotCb;
+  pFsm->FpCommitCb = mndSyncCommitMsg;
+  pFsm->FpPreCommitCb = mndSyncPreCommitMsg;
+  pFsm->FpRollBackCb = mndSyncRollBackMsg;
+  pFsm->FpGetSnapshot = mndSyncGetSnapshot;
   return pFsm;
 }
 
@@ -195,18 +182,11 @@ int32_t mndInitSync(SMnode *pMnode) {
     return -1;
   }
 
-  if (mndRestoreWal(pMnode) < 0) {
-    mError("failed to restore wal since %s", terrstr());
-    return -1;
-  }
-
   if (pMnode->selfId == 1) {
     pMgmt->state = TAOS_SYNC_STATE_LEADER;
   }
-  
-  // pMgmt->pSyncNode = NULL;
-  SSyncInfo syncInfo;
-  syncInfo.vgId = 1;
+
+  SSyncInfo syncInfo = {.vgId = 1};
   SSyncCfg *pCfg = &(syncInfo.syncCfg);
   pCfg->replicaNum = pMnode->replica;
   pCfg->myIndex = pMnode->selfIndex;
@@ -216,9 +196,8 @@ int32_t mndInitSync(SMnode *pMnode) {
   }
   snprintf(syncInfo.path, sizeof(syncInfo.path), "%s/sync", pMnode->path);
   syncInfo.pWal = pMnode->syncMgmt.pWal;
-
-  syncInfo.pFsm = syncMnodeMakeFsm(pMnode);
-  syncInfo.FpSendMsg = mndSendMsg;
+  syncInfo.pFsm = mndSyncMakeFsm(pMnode);
+  syncInfo.FpSendMsg = mndSyncSendMsg;
   syncInfo.FpEqMsg = mndSyncEqMsg;
 
   pMnode->syncMgmt.sync = syncOpen(&syncInfo);
diff --git a/source/dnode/mnode/impl/src/mnode.c b/source/dnode/mnode/impl/src/mnode.c
index 02f4e0872c780223564309fd5cacd293b22a9801..297174beb7b9ab1535d301e6e12f7ee7f4cd2bb0 100644
--- a/source/dnode/mnode/impl/src/mnode.c
+++ b/source/dnode/mnode/impl/src/mnode.c
@@ -343,25 +343,18 @@ int32_t mndStart(SMnode *pMnode) {
 
 void mndStop(SMnode *pMnode) { 
   syncStop(pMnode->syncMgmt.sync); 
-  return mndCleanupTimer(pMnode); 
+  return mndCleanupTimer(pMnode);
 }
 
 int32_t mndProcessApplyMsg(SRpcMsg *pMsg) {
-
   SSdbRaw *pRaw = pMsg->pCont;
-  SMnode *pMnode = pMsg->info.node;
-  int32_t code = sdbWriteWithoutFree(pMnode->pSdb, pRaw);
-  rpcFreeCont(pMsg->pCont);
-
-  return code;
+  SMnode  *pMnode = pMsg->info.node;
+  return sdbWriteWithoutFree(pMnode->pSdb, pRaw);
 }
 
-#include "syncTools.h"
-
 int32_t mndProcessSyncMsg(SRpcMsg *pMsg) {
   SMnode *pMnode = pMsg->info.node;
   void   *ahandle = pMsg->info.ahandle;
-
   int32_t ret = TAOS_SYNC_PROPOSE_OTHER_ERROR;
   
   if (syncEnvIsStart()) {
diff --git a/source/libs/sync/src/syncMain.c b/source/libs/sync/src/syncMain.c
index 9c02b91ef0043eb899493e1b9d4706eff430bb55..f4f09d0f7b3cbedff88c0c97ad5d3d4b68013c0c 100644
--- a/source/libs/sync/src/syncMain.c
+++ b/source/libs/sync/src/syncMain.c
@@ -13,7 +13,6 @@
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include <stdint.h>
 #include "sync.h"
 #include "syncAppendEntries.h"
 #include "syncAppendEntriesReply.h"