diff --git a/source/libs/sync/inc/syncInt.h b/source/libs/sync/inc/syncInt.h
index 82108acf7b95de38e1987e21e636674cc846c1a0..d75c5424ea8956f8bf9f75b1dc98ab3815ed0ae8 100644
--- a/source/libs/sync/inc/syncInt.h
+++ b/source/libs/sync/inc/syncInt.h
@@ -97,14 +97,17 @@ typedef struct SRaftId {
 } SRaftId;
 
 typedef struct SSyncNode {
-  int8_t  replica;
-  int8_t  quorum;
-  int32_t refCount;
-  int64_t rid;
-
   SyncGroupId vgId;
   SSyncCfg    syncCfg;
   char        path[TSDB_FILENAME_LEN];
+  SSyncFSM*   pFsm;
+
+  // passed from outside
+  void* rpcClient;
+  int32_t (*FpSendMsg)(void* rpcClient, const SEpSet* pEpSet, SRpcMsg* pMsg);
+
+  int32_t refCount;
+  int64_t rid;
 
   SNodeInfo me;
   SNodeInfo peers[TSDB_MAX_REPLICA];
@@ -112,7 +115,6 @@ typedef struct SSyncNode {
 
   ESyncRole role;
   SRaftId   raftId;
-  SSyncFSM* pFsm;
 
   tmr_h             pPingTimer;
   int32_t           pingTimerMS;
@@ -145,10 +147,6 @@ typedef struct SSyncNode {
 
   int32_t (*FpOnAppendEntriesReply)(SSyncNode* ths, SyncAppendEntriesReply* pMsg);
 
-  // passed from outside
-  void* rpcClient;
-  int32_t (*FpSendMsg)(void* rpcClient, const SEpSet* pEpSet, SRpcMsg* pMsg);
-
 } SSyncNode;
 
 SSyncNode* syncNodeOpen(const SSyncInfo* pSyncInfo);
diff --git a/source/libs/sync/src/syncIO.c b/source/libs/sync/src/syncIO.c
index 5c27f9ec3ac957a6e3460453a1ef72391d6feb9e..c035ad5d6b88f8e6554faff7ec21eb257670f027 100644
--- a/source/libs/sync/src/syncIO.c
+++ b/source/libs/sync/src/syncIO.c
@@ -30,19 +30,26 @@ static int32_t doSyncIOOnMsg(struct SSyncIO *io, void *pParent, SRpcMsg *pMsg, S
 static int32_t doSyncIODestroy(SSyncIO *io);
 
 static SSyncIO *syncIOCreate();
-static void *   syncIOConsumer(void *param);
+static void    *syncIOConsumer(void *param);
 static int      syncIOAuth(void *parent, char *meterId, char *spi, char *encrypt, char *secret, char *ckey);
 static void     syncIODoReply(void *pParent, SRpcMsg *pMsg, SEpSet *pEpSet);
 static void     syncIODoRequest(void *pParent, SRpcMsg *pMsg, SEpSet *pEpSet);
 static void     syncIOTick(void *param, void *tmrId);
 // ----------------------------
 
-int32_t syncIOSendMsg(void *handle, const SEpSet *pEpSet, SRpcMsg *pMsg) { return 0; }
+int32_t syncIOSendMsg(void *handle, const SEpSet *pEpSet, SRpcMsg *pMsg) {
+  pMsg->handle = NULL;
+  rpcSendRequest(handle, pEpSet, pMsg, NULL);
+  return 0;
+}
 
 int32_t syncIOStart() {
   gSyncIO = syncIOCreate();
   assert(gSyncIO != NULL);
 
+  int32_t ret = doSyncIOStart(gSyncIO);
+  assert(ret == 0);
+
   return 0;
 }
 
@@ -67,15 +74,14 @@ static void syncIOTick(void *param, void *tmrId) {
 
   taosWriteQitem(io->pMsgQ, pTemp);
 
-  bool b = taosTmrReset(syncIOTick, 1000, io, io->syncTimerManager, io->syncTimer);
-  assert(b);
+  taosTmrReset(syncIOTick, 1000, io, io->syncTimerManager, io->syncTimer);
 }
 
 static void *syncIOConsumer(void *param) {
   SSyncIO *io = param;
 
   STaosQall *qall;
-  SRpcMsg *  pRpcMsg, rpcMsg;
+  SRpcMsg   *pRpcMsg, rpcMsg;
   int        type;
 
   qall = taosAllocateQall();
@@ -215,8 +221,8 @@ static int32_t doSyncIOStart(SSyncIO *io) {
   }
 
   // start tmr thread
-  io->syncTimerManager = taosTmrInit(1000, 50, 10000, "SYNC");
-  io->syncTimer = taosTmrStart(syncIOTick, 1000, io, io->syncTimerManager);
+  // io->syncTimerManager = taosTmrInit(1000, 50, 10000, "SYNC");
+  // io->syncTimer = taosTmrStart(syncIOTick, 1000, io, io->syncTimerManager);
 
   return 0;
 }
diff --git a/source/libs/sync/src/syncMain.c b/source/libs/sync/src/syncMain.c
index 4d9e5887cd79c7f215049c4f75ce3f4f7464b268..0aa3e5606292a11a32801e03dfbc33d23267abb2 100644
--- a/source/libs/sync/src/syncMain.c
+++ b/source/libs/sync/src/syncMain.c
@@ -69,15 +69,34 @@ SSyncNode* syncNodeOpen(const SSyncInfo* pSyncInfo) {
   assert(pSyncNode != NULL);
   memset(pSyncNode, 0, sizeof(SSyncNode));
 
+  pSyncNode->vgId = pSyncInfo->vgId;
+  pSyncNode->syncCfg = pSyncInfo->syncCfg;
+  memcpy(pSyncNode->path, pSyncInfo->path, sizeof(pSyncNode->path));
+  pSyncNode->pFsm = pSyncInfo->pFsm;
+
+  pSyncNode->rpcClient = pSyncInfo->rpcClient;
+  pSyncNode->FpSendMsg = pSyncInfo->FpSendMsg;
+
+  pSyncNode->me = pSyncInfo->syncCfg.nodeInfo[pSyncInfo->syncCfg.myIndex];
+  pSyncNode->peersNum = pSyncInfo->syncCfg.replicaNum - 1;
+
+  int j = 0;
+  for (int i = 0; i < pSyncInfo->syncCfg.replicaNum; ++i) {
+    if (i != pSyncInfo->syncCfg.myIndex) {
+      pSyncNode->peers[j] = pSyncInfo->syncCfg.nodeInfo[i];
+      j++;
+    }
+  }
+
+  pSyncNode->role = TAOS_SYNC_STATE_FOLLOWER;
+  syncUtilnodeInfo2raftId(&pSyncNode->me, pSyncNode->vgId, &pSyncNode->raftId);
+
   pSyncNode->pPingTimer = NULL;
   pSyncNode->pingTimerMS = 1000;
   atomic_store_8(&pSyncNode->pingTimerStart, 0);
   pSyncNode->FpPingTimer = syncNodePingTimerCb;
   pSyncNode->pingTimerCounter = 0;
 
-  pSyncNode->rpcClient = pSyncInfo->rpcClient;
-  pSyncNode->FpSendMsg = pSyncInfo->FpSendMsg;
-
   pSyncNode->FpOnPing = syncNodeOnPingCb;
   pSyncNode->FpOnPingReply = syncNodeOnPingReplyCb;
   pSyncNode->FpOnRequestVote = syncNodeOnRequestVoteCb;
@@ -97,10 +116,11 @@ void syncNodePingAll(SSyncNode* pSyncNode) {
   sTrace("syncNodePingAll %p ", pSyncNode);
   int32_t ret = 0;
   for (int i = 0; i < pSyncNode->syncCfg.replicaNum; ++i) {
-    SyncPing* pSyncPing;
-    SRaftId   raftId;
-    syncUtilnodeInfo2raftId(&pSyncNode->syncCfg.nodeInfo[i], pSyncNode->vgId, &raftId);
-    ret = syncNodePing(pSyncNode, &raftId, pSyncPing);
+    SyncPing* pMsg = syncPingBuild(strlen("ping") + 1);
+    memcpy(pMsg->data, "ping", strlen("ping") + 1);
+    syncUtilnodeInfo2raftId(&pSyncNode->syncCfg.nodeInfo[i], pSyncNode->vgId, &pMsg->destId);
+    pMsg->srcId = pSyncNode->raftId;
+    ret = syncNodePing(pSyncNode, &pMsg->destId, pMsg);
     assert(ret == 0);
   }
 }
@@ -118,10 +138,11 @@ void syncNodePingPeers(SSyncNode* pSyncNode) {
 
 void syncNodePingSelf(SSyncNode* pSyncNode) {
   int32_t   ret = 0;
-  SyncPing* pSyncPing;
-  SRaftId   raftId;
-  syncUtilnodeInfo2raftId(&pSyncNode->me, pSyncNode->vgId, &raftId);
-  ret = syncNodePing(pSyncNode, &raftId, pSyncPing);
+  SyncPing* pMsg = syncPingBuild(strlen("ping") + 1);
+  memcpy(pMsg->data, "ping", strlen("ping") + 1);
+  pMsg->destId = pSyncNode->raftId;
+  pMsg->srcId = pSyncNode->raftId;
+  ret = syncNodePing(pSyncNode, &pMsg->destId, pMsg);
   assert(ret == 0);
 }
 
@@ -146,10 +167,10 @@ int32_t syncNodeStopPingTimer(SSyncNode* pSyncNode) {
 
 // ------ local funciton ---------
 static int32_t syncNodePing(SSyncNode* pSyncNode, const SRaftId* destRaftId, SyncPing* pMsg) {
-  int32_t  ret = 0;
-  SRpcMsg* rpcMsg;
-  syncPing2RpcMsg(pMsg, rpcMsg);
-  syncNodeSendMsgById(destRaftId, pSyncNode, rpcMsg);
+  int32_t ret = 0;
+  SRpcMsg rpcMsg;
+  syncPing2RpcMsg(pMsg, &rpcMsg);
+  syncNodeSendMsgById(destRaftId, pSyncNode, &rpcMsg);
   return ret;
 }
 
diff --git a/source/libs/sync/src/syncUtil.c b/source/libs/sync/src/syncUtil.c
index 080840bbf6403d8cfb0400d0a5e54ab82ba87953..0066ab783e1a3f2586fa84b8fb6cd22cefb5bd72 100644
--- a/source/libs/sync/src/syncUtil.c
+++ b/source/libs/sync/src/syncUtil.c
@@ -22,7 +22,7 @@
 uint64_t syncUtilAddr2U64(const char* host, uint16_t port) {
   uint64_t u64;
   uint32_t hostU32 = (uint32_t)inet_addr(host);
-  assert(hostU32 != (uint32_t)-1);
+  // assert(hostU32 != (uint32_t)-1);
   u64 = (((uint64_t)hostU32) << 32) | (((uint32_t)port) << 16);
   return u64;
 }