diff --git a/source/libs/sync/inc/syncEnv.h b/source/libs/sync/inc/syncEnv.h
index c3679636e6..40ff79287b 100644
--- a/source/libs/sync/inc/syncEnv.h
+++ b/source/libs/sync/inc/syncEnv.h
@@ -42,7 +42,7 @@ typedef struct SSyncEnv {
   // tick timer
   tmr_h             pEnvTickTimer;
   int32_t           envTickTimerMS;
-  uint64_t          envTickTimerLogicClock;
+  uint64_t          envTickTimerLogicClock;  // if use queue, should pass logic clock into queue item
   uint64_t          envTickTimerLogicClockUser;
   TAOS_TMR_CALLBACK FpEnvTickTimer;  // Timer Fp
   uint64_t          envTickTimerCounter;
diff --git a/source/libs/sync/inc/syncIO.h b/source/libs/sync/inc/syncIO.h
index 160fefd086..352d30c8d7 100644
--- a/source/libs/sync/inc/syncIO.h
+++ b/source/libs/sync/inc/syncIO.h
@@ -29,6 +29,9 @@ extern "C" {
 #include "tqueue.h"
 #include "trpc.h"
 
+#define TICK_Q_TIMER_MS 1000
+#define TICK_Ping_TIMER_MS 1000
+
 typedef struct SSyncIO {
   STaosQueue *pMsgQ;
   STaosQset * pQset;
@@ -38,9 +41,11 @@ typedef struct SSyncIO {
   void * clientRpc;
   SEpSet myAddr;
 
-  void *ioTimerTickQ;
-  void *ioTimerTickPing;
-  void *ioTimerManager;
+  tmr_h   qTimer;
+  int32_t qTimerMS;
+  tmr_h   pingTimer;
+  int32_t pingTimerMS;
+  tmr_h   timerMgr;
 
   void *pSyncNode;
   int32_t (*FpOnSyncPing)(SSyncNode *pSyncNode, SyncPing *pMsg);
@@ -59,11 +64,14 @@ extern SSyncIO *gSyncIO;
 
 int32_t syncIOStart(char *host, uint16_t port);
 int32_t syncIOStop();
-int32_t syncIOTickQ();
-int32_t syncIOTickPing();
 int32_t syncIOSendMsg(void *clientRpc, const SEpSet *pEpSet, SRpcMsg *pMsg);
 int32_t syncIOEqMsg(void *queue, SRpcMsg *pMsg);
 
+int32_t syncIOQTimerStart();
+int32_t syncIOQTimerStop();
+int32_t syncIOPingTimerStart();
+int32_t syncIOPingTimerStop();
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/source/libs/sync/inc/syncMessage.h b/source/libs/sync/inc/syncMessage.h
index 2876577410..9bb5b6195e 100644
--- a/source/libs/sync/inc/syncMessage.h
+++ b/source/libs/sync/inc/syncMessage.h
@@ -39,6 +39,7 @@ typedef enum ESyncMessageType {
   SYNC_REQUEST_VOTE_REPLY = 111,
   SYNC_APPEND_ENTRIES = 113,
   SYNC_APPEND_ENTRIES_REPLY = 115,
+  SYNC_RESPONSE = 119,
 
 } ESyncMessageType;
 
diff --git a/source/libs/sync/src/syncEnv.c b/source/libs/sync/src/syncEnv.c
index 2830d2d4aa..dd7161800d 100644
--- a/source/libs/sync/src/syncEnv.c
+++ b/source/libs/sync/src/syncEnv.c
@@ -55,13 +55,19 @@ static void syncEnvTick(void *param, void *tmrId) {
   if (atomic_load_64(&pSyncEnv->envTickTimerLogicClockUser) <= atomic_load_64(&pSyncEnv->envTickTimerLogicClock)) {
     ++(pSyncEnv->envTickTimerCounter);
     sTrace(
-        "syncEnvTick ... envTickTimerLogicClockUser:%lu, envTickTimerLogicClock:%lu, envTickTimerCounter:%lu, "
-        "envTickTimerMS:%d",
+        "syncEnvTick do ... envTickTimerLogicClockUser:%lu, envTickTimerLogicClock:%lu, envTickTimerCounter:%lu, "
+        "envTickTimerMS:%d, tmrId:%p",
         pSyncEnv->envTickTimerLogicClockUser, pSyncEnv->envTickTimerLogicClock, pSyncEnv->envTickTimerCounter,
-        pSyncEnv->envTickTimerMS);
+        pSyncEnv->envTickTimerMS, tmrId);
 
     // do something, tick ...
     taosTmrReset(syncEnvTick, pSyncEnv->envTickTimerMS, pSyncEnv, pSyncEnv->pTimerManager, &pSyncEnv->pEnvTickTimer);
+  } else {
+    sTrace(
+        "syncEnvTick pass ... envTickTimerLogicClockUser:%lu, envTickTimerLogicClock:%lu, envTickTimerCounter:%lu, "
+        "envTickTimerMS:%d, tmrId:%p",
+        pSyncEnv->envTickTimerLogicClockUser, pSyncEnv->envTickTimerLogicClock, pSyncEnv->envTickTimerCounter,
+        pSyncEnv->envTickTimerMS, tmrId);
   }
 }
 
@@ -88,15 +94,16 @@ static int32_t doSyncEnvStop(SSyncEnv *pSyncEnv) {
 
 static int32_t doSyncEnvStartTimer(SSyncEnv *pSyncEnv) {
   int32_t ret = 0;
-  pSyncEnv->pEnvTickTimer =
-      taosTmrStart(pSyncEnv->FpEnvTickTimer, pSyncEnv->envTickTimerMS, pSyncEnv, pSyncEnv->pTimerManager);
+  taosTmrReset(pSyncEnv->FpEnvTickTimer, pSyncEnv->envTickTimerMS, pSyncEnv, pSyncEnv->pTimerManager,
+               &pSyncEnv->pEnvTickTimer);
   atomic_store_64(&pSyncEnv->envTickTimerLogicClock, pSyncEnv->envTickTimerLogicClockUser);
   return ret;
 }
 
 static int32_t doSyncEnvStopTimer(SSyncEnv *pSyncEnv) {
+  int32_t ret = 0;
   atomic_add_fetch_64(&pSyncEnv->envTickTimerLogicClockUser, 1);
   taosTmrStop(pSyncEnv->pEnvTickTimer);
   pSyncEnv->pEnvTickTimer = NULL;
-  return 0;
+  return ret;
 }
diff --git a/source/libs/sync/src/syncIO.c b/source/libs/sync/src/syncIO.c
index af97c4663c..c8745ca138 100644
--- a/source/libs/sync/src/syncIO.c
+++ b/source/libs/sync/src/syncIO.c
@@ -16,6 +16,7 @@
 #include "syncIO.h"
 #include <tdatablock.h>
 #include "syncMessage.h"
+#include "syncUtil.h"
 #include "tglobal.h"
 #include "ttimer.h"
 #include "tutil.h"
@@ -23,33 +24,36 @@
 SSyncIO *gSyncIO = NULL;
 
 // local function ------------
-static int32_t  syncIOStartInternal(SSyncIO *io);
-static int32_t  syncIOStopInternal(SSyncIO *io);
 static SSyncIO *syncIOCreate(char *host, uint16_t port);
 static int32_t  syncIODestroy(SSyncIO *io);
+static int32_t  syncIOStartInternal(SSyncIO *io);
+static int32_t  syncIOStopInternal(SSyncIO *io);
 
-static void *syncIOConsumerFunc(void *param);
-static int   syncIOAuth(void *parent, char *meterId, char *spi, char *encrypt, char *secret, char *ckey);
-static void  syncIOProcessRequest(void *pParent, SRpcMsg *pMsg, SEpSet *pEpSet);
-static void  syncIOProcessReply(void *pParent, SRpcMsg *pMsg, SEpSet *pEpSet);
+static void   *syncIOConsumerFunc(void *param);
+static void    syncIOProcessRequest(void *pParent, SRpcMsg *pMsg, SEpSet *pEpSet);
+static void    syncIOProcessReply(void *pParent, SRpcMsg *pMsg, SEpSet *pEpSet);
+static int32_t syncIOAuth(void *parent, char *meterId, char *spi, char *encrypt, char *secret, char *ckey);
 
-static int32_t syncIOTickQInternal(SSyncIO *io);
-static void    syncIOTickQFunc(void *param, void *tmrId);
-static int32_t syncIOTickPingInternal(SSyncIO *io);
-static void    syncIOTickPingFunc(void *param, void *tmrId);
+static int32_t syncIOStartQ(SSyncIO *io);
+static int32_t syncIOStopQ(SSyncIO *io);
+static int32_t syncIOStartPing(SSyncIO *io);
+static int32_t syncIOStopPing(SSyncIO *io);
+static void    syncIOTickQ(void *param, void *tmrId);
+static void    syncIOTickPing(void *param, void *tmrId);
 // ----------------------------
 
 // public function ------------
 int32_t syncIOStart(char *host, uint16_t port) {
+  int32_t ret = 0;
   gSyncIO = syncIOCreate(host, port);
   assert(gSyncIO != NULL);
 
   taosSeedRand(taosGetTimestampSec());
-  int32_t ret = syncIOStartInternal(gSyncIO);
+  ret = syncIOStartInternal(gSyncIO);
   assert(ret == 0);
 
-  sTrace("syncIOStart ok, gSyncIO:%p gSyncIO->clientRpc:%p", gSyncIO, gSyncIO->clientRpc);
-  return 0;
+  sTrace("syncIOStart ok, gSyncIO:%p", gSyncIO);
+  return ret;
 }
 
 int32_t syncIOStop() {
@@ -61,37 +65,25 @@ int32_t syncIOStop() {
   return ret;
 }
 
-int32_t syncIOTickQ() {
-  int32_t ret = syncIOTickQInternal(gSyncIO);
-  assert(ret == 0);
-  return ret;
-}
-
-int32_t syncIOTickPing() {
-  int32_t ret = syncIOTickPingInternal(gSyncIO);
-  assert(ret == 0);
-  return ret;
-}
-
 int32_t syncIOSendMsg(void *clientRpc, const SEpSet *pEpSet, SRpcMsg *pMsg) {
-  sTrace(
-      "<--- syncIOSendMsg ---> clientRpc:%p, numOfEps:%d, inUse:%d, destAddr:%s-%u, pMsg->ahandle:%p, pMsg->handle:%p, "
-      "pMsg->msgType:%d, pMsg->contLen:%d",
-      clientRpc, pEpSet->numOfEps, pEpSet->inUse, pEpSet->eps[0].fqdn, pEpSet->eps[0].port, pMsg->ahandle, pMsg->handle,
-      pMsg->msgType, pMsg->contLen);
-  {
-    cJSON *pJson = syncRpcMsg2Json(pMsg);
-    char * serialized = cJSON_Print(pJson);
-    sTrace("process syncMessage send: pMsg:%s ", serialized);
-    free(serialized);
-    cJSON_Delete(pJson);
-  }
+  assert(pEpSet->inUse == 0);
+  assert(pEpSet->numOfEps == 1);
+
+  int32_t ret = 0;
+  char    logBuf[256];
+  snprintf(logBuf, sizeof(logBuf), "==syncIOSendMsg== %s:%d", pEpSet->eps[0].fqdn, pEpSet->eps[0].port);
+  syncRpcMsgPrint2(logBuf, pMsg);
+
   pMsg->handle = NULL;
   rpcSendRequest(clientRpc, pEpSet, pMsg, NULL);
-  return 0;
+  return ret;
 }
 
 int32_t syncIOEqMsg(void *queue, SRpcMsg *pMsg) {
+  int32_t ret = 0;
+  char    logBuf[128];
+  syncRpcMsgPrint2((char *)"==syncIOEqMsg==", pMsg);
+
   SRpcMsg *pTemp;
   pTemp = taosAllocateQitem(sizeof(SRpcMsg));
   memcpy(pTemp, pMsg, sizeof(SRpcMsg));
@@ -99,11 +91,75 @@ int32_t syncIOEqMsg(void *queue, SRpcMsg *pMsg) {
   STaosQueue *pMsgQ = queue;
   taosWriteQitem(pMsgQ, pTemp);
 
-  return 0;
+  return ret;
+}
+
+int32_t syncIOQTimerStart() {
+  int32_t ret = syncIOStartQ(gSyncIO);
+  assert(ret == 0);
+  return ret;
+}
+
+int32_t syncIOQTimerStop() {
+  int32_t ret = syncIOStopQ(gSyncIO);
+  assert(ret == 0);
+  return ret;
+}
+
+int32_t syncIOPingTimerStart() {
+  int32_t ret = syncIOStartPing(gSyncIO);
+  assert(ret == 0);
+  return ret;
+}
+
+int32_t syncIOPingTimerStop() {
+  int32_t ret = syncIOStopPing(gSyncIO);
+  assert(ret == 0);
+  return ret;
 }
 
 // local function ------------
+static SSyncIO *syncIOCreate(char *host, uint16_t port) {
+  SSyncIO *io = (SSyncIO *)malloc(sizeof(SSyncIO));
+  memset(io, 0, sizeof(*io));
+
+  io->pMsgQ = taosOpenQueue();
+  io->pQset = taosOpenQset();
+  taosAddIntoQset(io->pQset, io->pMsgQ, NULL);
+
+  io->myAddr.inUse = 0;
+  io->myAddr.numOfEps = 0;
+  addEpIntoEpSet(&io->myAddr, host, port);
+
+  io->qTimerMS = TICK_Q_TIMER_MS;
+  io->pingTimerMS = TICK_Ping_TIMER_MS;
+
+  return io;
+}
+
+static int32_t syncIODestroy(SSyncIO *io) {
+  int32_t ret = 0;
+  int8_t  start = atomic_load_8(&io->isStart);
+  assert(start == 0);
+
+  if (io->serverRpc != NULL) {
+    rpcClose(io->serverRpc);
+    io->serverRpc = NULL;
+  }
+
+  if (io->clientRpc != NULL) {
+    rpcClose(io->clientRpc);
+    io->clientRpc = NULL;
+  }
+
+  taosCloseQueue(io->pMsgQ);
+  taosCloseQset(io->pQset);
+
+  return ret;
+}
+
 static int32_t syncIOStartInternal(SSyncIO *io) {
+  int32_t ret = 0;
   taosBlockSIGPIPE();
 
   rpcInit();
@@ -163,58 +219,24 @@ static int32_t syncIOStartInternal(SSyncIO *io) {
   }
 
   // start tmr thread
-  io->ioTimerManager = taosTmrInit(1000, 50, 10000, "SYNC");
+  io->timerMgr = taosTmrInit(1000, 50, 10000, "SYNC-IO");
 
-  return 0;
+  atomic_store_8(&io->isStart, 1);
+  return ret;
 }
 
 static int32_t syncIOStopInternal(SSyncIO *io) {
+  int32_t ret = 0;
   atomic_store_8(&io->isStart, 0);
   pthread_join(io->consumerTid, NULL);
-  return 0;
-}
-
-static SSyncIO *syncIOCreate(char *host, uint16_t port) {
-  SSyncIO *io = (SSyncIO *)malloc(sizeof(SSyncIO));
-  memset(io, 0, sizeof(*io));
-
-  io->pMsgQ = taosOpenQueue();
-  io->pQset = taosOpenQset();
-  taosAddIntoQset(io->pQset, io->pMsgQ, NULL);
-
-  io->myAddr.inUse = 0;
-  addEpIntoEpSet(&io->myAddr, host, port);
-
-  return io;
-}
-
-static int32_t syncIODestroy(SSyncIO *io) {
-  int8_t start = atomic_load_8(&io->isStart);
-  assert(start == 0);
-
-  if (io->serverRpc != NULL) {
-    free(io->serverRpc);
-    io->serverRpc = NULL;
-  }
-
-  if (io->clientRpc != NULL) {
-    free(io->clientRpc);
-    io->clientRpc = NULL;
-  }
-
-  taosCloseQueue(io->pMsgQ);
-  taosCloseQset(io->pQset);
-
-  return 0;
+  taosTmrCleanUp(io->timerMgr);
+  return ret;
 }
 
 static void *syncIOConsumerFunc(void *param) {
-  SSyncIO *io = param;
-
+  SSyncIO   *io = param;
   STaosQall *qall;
-  SRpcMsg *  pRpcMsg, rpcMsg;
-  int        type;
-
+  SRpcMsg   *pRpcMsg, rpcMsg;
   qall = taosAllocateQall();
 
   while (1) {
@@ -226,77 +248,67 @@ static void *syncIOConsumerFunc(void *param) {
 
     for (int i = 0; i < numOfMsgs; ++i) {
       taosGetQitem(qall, (void **)&pRpcMsg);
+      syncRpcMsgLog2((char *)"==syncIOConsumerFunc==", pRpcMsg);
 
-      char *s = syncRpcMsg2Str(pRpcMsg);
-      sTrace("syncIOConsumerFunc get item from queue: msgType:%d contLen:%d msg:%s", pRpcMsg->msgType, pRpcMsg->contLen,
-             s);
-      free(s);
-
+      // use switch case instead of if else
       if (pRpcMsg->msgType == SYNC_PING) {
         if (io->FpOnSyncPing != NULL) {
-          SyncPing *pSyncMsg;
+          SyncPing *pSyncMsg = syncPingFromRpcMsg2(pRpcMsg);
+          assert(pSyncMsg != NULL);
+          io->FpOnSyncPing(io->pSyncNode, pSyncMsg);
+          syncPingDestroy(pSyncMsg);
+          /*
           pSyncMsg = syncPingBuild(pRpcMsg->contLen);
           syncPingFromRpcMsg(pRpcMsg, pSyncMsg);
           // memcpy(pSyncMsg, tmpRpcMsg.pCont, tmpRpcMsg.contLen);
           io->FpOnSyncPing(io->pSyncNode, pSyncMsg);
           syncPingDestroy(pSyncMsg);
+          */
         }
 
       } else if (pRpcMsg->msgType == SYNC_PING_REPLY) {
         if (io->FpOnSyncPingReply != NULL) {
-          SyncPingReply *pSyncMsg;
-          pSyncMsg = syncPingReplyBuild(pRpcMsg->contLen);
-          syncPingReplyFromRpcMsg(pRpcMsg, pSyncMsg);
+          SyncPingReply *pSyncMsg = syncPingReplyFromRpcMsg2(pRpcMsg);
           io->FpOnSyncPingReply(io->pSyncNode, pSyncMsg);
           syncPingReplyDestroy(pSyncMsg);
         }
 
       } else if (pRpcMsg->msgType == SYNC_REQUEST_VOTE) {
         if (io->FpOnSyncRequestVote != NULL) {
-          SyncRequestVote *pSyncMsg;
-          pSyncMsg = syncRequestVoteBuild(pRpcMsg->contLen);
-          syncRequestVoteFromRpcMsg(pRpcMsg, pSyncMsg);
+          SyncRequestVote *pSyncMsg = syncRequestVoteFromRpcMsg2(pRpcMsg);
           io->FpOnSyncRequestVote(io->pSyncNode, pSyncMsg);
           syncRequestVoteDestroy(pSyncMsg);
         }
 
       } else if (pRpcMsg->msgType == SYNC_REQUEST_VOTE_REPLY) {
         if (io->FpOnSyncRequestVoteReply != NULL) {
-          SyncRequestVoteReply *pSyncMsg;
-          pSyncMsg = syncRequestVoteReplyBuild();
-          syncRequestVoteReplyFromRpcMsg(pRpcMsg, pSyncMsg);
+          SyncRequestVoteReply *pSyncMsg = syncRequestVoteReplyFromRpcMsg2(pRpcMsg);
           io->FpOnSyncRequestVoteReply(io->pSyncNode, pSyncMsg);
           syncRequestVoteReplyDestroy(pSyncMsg);
         }
 
       } else if (pRpcMsg->msgType == SYNC_APPEND_ENTRIES) {
         if (io->FpOnSyncAppendEntries != NULL) {
-          SyncAppendEntries *pSyncMsg;
-          pSyncMsg = syncAppendEntriesBuild(pRpcMsg->contLen);
-          syncAppendEntriesFromRpcMsg(pRpcMsg, pSyncMsg);
+          SyncAppendEntries *pSyncMsg = syncAppendEntriesFromRpcMsg2(pRpcMsg);
           io->FpOnSyncAppendEntries(io->pSyncNode, pSyncMsg);
           syncAppendEntriesDestroy(pSyncMsg);
         }
 
       } else if (pRpcMsg->msgType == SYNC_APPEND_ENTRIES_REPLY) {
         if (io->FpOnSyncAppendEntriesReply != NULL) {
-          SyncAppendEntriesReply *pSyncMsg;
-          pSyncMsg = syncAppendEntriesReplyBuild();
-          syncAppendEntriesReplyFromRpcMsg(pRpcMsg, pSyncMsg);
+          SyncAppendEntriesReply *pSyncMsg = syncAppendEntriesReplyFromRpcMsg2(pRpcMsg);
           io->FpOnSyncAppendEntriesReply(io->pSyncNode, pSyncMsg);
           syncAppendEntriesReplyDestroy(pSyncMsg);
         }
 
       } else if (pRpcMsg->msgType == SYNC_TIMEOUT) {
         if (io->FpOnSyncTimeout != NULL) {
-          SyncTimeout *pSyncMsg;
-          pSyncMsg = syncTimeoutBuild();
-          syncTimeoutFromRpcMsg(pRpcMsg, pSyncMsg);
+          SyncTimeout *pSyncMsg = syncTimeoutFromRpcMsg2(pRpcMsg);
           io->FpOnSyncTimeout(io->pSyncNode, pSyncMsg);
           syncTimeoutDestroy(pSyncMsg);
         }
       } else {
-        ;
+        sTrace("unknown msgType:%d, no operator", pRpcMsg->msgType);
       }
     }
 
@@ -306,15 +318,16 @@ static void *syncIOConsumerFunc(void *param) {
       rpcFreeCont(pRpcMsg->pCont);
 
       if (pRpcMsg->handle != NULL) {
-        int msgSize = 128;
+        int msgSize = 32;
         memset(&rpcMsg, 0, sizeof(rpcMsg));
+        rpcMsg.msgType = SYNC_RESPONSE;
         rpcMsg.pCont = rpcMallocCont(msgSize);
         rpcMsg.contLen = msgSize;
         snprintf(rpcMsg.pCont, rpcMsg.contLen, "%s", "give a reply");
         rpcMsg.handle = pRpcMsg->handle;
         rpcMsg.code = 0;
 
-        sTrace("syncIOConsumerFunc rpcSendResponse ... msgType:%d contLen:%d", pRpcMsg->msgType, rpcMsg.contLen);
+        syncRpcMsgPrint2((char *)"syncIOConsumerFunc rpcSendResponse --> ", &rpcMsg);
         rpcSendResponse(&rpcMsg);
       }
 
@@ -326,60 +339,102 @@ static void *syncIOConsumerFunc(void *param) {
   return NULL;
 }
 
-static int syncIOAuth(void *parent, char *meterId, char *spi, char *encrypt, char *secret, char *ckey) {
-  // app shall retrieve the auth info based on meterID from DB or a data file
-  // demo code here only for simple demo
-  int ret = 0;
-  return ret;
-}
-
 static void syncIOProcessRequest(void *pParent, SRpcMsg *pMsg, SEpSet *pEpSet) {
-  sTrace("<-- syncIOProcessRequest --> type:%d, contLen:%d, cont:%s", pMsg->msgType, pMsg->contLen,
-         (char *)pMsg->pCont);
-
+  syncRpcMsgPrint2((char *)"==syncIOProcessRequest==", pMsg);
   SSyncIO *io = pParent;
   SRpcMsg *pTemp;
-
   pTemp = taosAllocateQitem(sizeof(SRpcMsg));
   memcpy(pTemp, pMsg, sizeof(SRpcMsg));
-
   taosWriteQitem(io->pMsgQ, pTemp);
 }
 
 static void syncIOProcessReply(void *pParent, SRpcMsg *pMsg, SEpSet *pEpSet) {
-  sTrace("syncIOProcessReply: type:%d, contLen:%d msg:%s", pMsg->msgType, pMsg->contLen, (char *)pMsg->pCont);
+  if (pMsg->msgType == SYNC_RESPONSE) {
+    sTrace("==syncIOProcessReply==");
+  } else {
+    syncRpcMsgPrint2((char *)"==syncIOProcessReply==", pMsg);
+  }
   rpcFreeCont(pMsg->pCont);
 }
 
-static int32_t syncIOTickQInternal(SSyncIO *io) {
-  io->ioTimerTickQ = taosTmrStart(syncIOTickQFunc, 1000, io, io->ioTimerManager);
-  return 0;
+static int32_t syncIOAuth(void *parent, char *meterId, char *spi, char *encrypt, char *secret, char *ckey) {
+  // app shall retrieve the auth info based on meterID from DB or a data file
+  // demo code here only for simple demo
+  int32_t ret = 0;
+  return ret;
 }
 
-static void syncIOTickQFunc(void *param, void *tmrId) {
+static int32_t syncIOStartQ(SSyncIO *io) {
+  int32_t ret = 0;
+  taosTmrReset(syncIOTickQ, io->qTimerMS, io, io->timerMgr, &io->qTimer);
+  return ret;
+}
+
+static int32_t syncIOStopQ(SSyncIO *io) {
+  int32_t ret = 0;
+  taosTmrStop(io->qTimer);
+  io->qTimer = NULL;
+  return ret;
+}
+
+static int32_t syncIOStartPing(SSyncIO *io) {
+  int32_t ret = 0;
+  taosTmrReset(syncIOTickPing, io->pingTimerMS, io, io->timerMgr, &io->pingTimer);
+  return ret;
+}
+
+static int32_t syncIOStopPing(SSyncIO *io) {
+  int32_t ret = 0;
+  taosTmrStop(io->pingTimer);
+  io->pingTimer = NULL;
+  return ret;
+}
+
+static void syncIOTickQ(void *param, void *tmrId) {
   SSyncIO *io = (SSyncIO *)param;
-  sTrace("<-- syncIOTickQFunc -->");
+
+  SRaftId srcId, destId;
+  srcId.addr = syncUtilAddr2U64(io->myAddr.eps[0].fqdn, io->myAddr.eps[0].port);
+  srcId.vgId = -1;
+  destId.addr = syncUtilAddr2U64(io->myAddr.eps[0].fqdn, io->myAddr.eps[0].port);
+  destId.vgId = -1;
+  SyncPingReply *pMsg = syncPingReplyBuild2(&srcId, &destId, "syncIOTickQ");
 
   SRpcMsg rpcMsg;
-  rpcMsg.contLen = 64;
-  rpcMsg.pCont = rpcMallocCont(rpcMsg.contLen);
-  snprintf(rpcMsg.pCont, rpcMsg.contLen, "%s", "syncIOTickQ");
-  rpcMsg.handle = NULL;
-  rpcMsg.msgType = 55;
-
+  syncPingReply2RpcMsg(pMsg, &rpcMsg);
   SRpcMsg *pTemp;
   pTemp = taosAllocateQitem(sizeof(SRpcMsg));
   memcpy(pTemp, &rpcMsg, sizeof(SRpcMsg));
-
+  syncRpcMsgPrint2((char *)"==syncIOTickQ==", &rpcMsg);
   taosWriteQitem(io->pMsgQ, pTemp);
-  taosTmrReset(syncIOTickQFunc, 1000, io, io->ioTimerManager, &io->ioTimerTickQ);
+  syncPingReplyDestroy(pMsg);
+
+  taosTmrReset(syncIOTickQ, io->qTimerMS, io, io->timerMgr, &io->qTimer);
 }
 
-static int32_t syncIOTickPingInternal(SSyncIO *io) {
-  io->ioTimerTickPing = taosTmrStart(syncIOTickPingFunc, 1000, io, io->ioTimerManager);
-  return 0;
+static void syncIOTickPing(void *param, void *tmrId) {
+  SSyncIO *io = (SSyncIO *)param;
+
+  SRaftId srcId, destId;
+  srcId.addr = syncUtilAddr2U64(io->myAddr.eps[0].fqdn, io->myAddr.eps[0].port);
+  srcId.vgId = -1;
+  destId.addr = syncUtilAddr2U64(io->myAddr.eps[0].fqdn, io->myAddr.eps[0].port);
+  destId.vgId = -1;
+  SyncPing *pMsg = syncPingBuild2(&srcId, &destId, "syncIOTickPing");
+  // SyncPing *pMsg = syncPingBuild3(&srcId, &destId);
+
+  SRpcMsg rpcMsg;
+  syncPing2RpcMsg(pMsg, &rpcMsg);
+  syncRpcMsgPrint2((char *)"==syncIOTickPing==", &rpcMsg);
+  rpcSendRequest(io->clientRpc, &io->myAddr, &rpcMsg, NULL);
+  syncPingDestroy(pMsg);
+
+  taosTmrReset(syncIOTickPing, io->pingTimerMS, io, io->timerMgr, &io->pingTimer);
 }
 
+#if 0
+
+
 static void syncIOTickPingFunc(void *param, void *tmrId) {
   SSyncIO *io = (SSyncIO *)param;
   sTrace("<-- syncIOTickPingFunc -->");
@@ -393,4 +448,5 @@ static void syncIOTickPingFunc(void *param, void *tmrId) {
 
   rpcSendRequest(io->clientRpc, &io->myAddr, &rpcMsg, NULL);
   taosTmrReset(syncIOTickPingFunc, 1000, io, io->ioTimerManager, &io->ioTimerTickPing);
-}
\ No newline at end of file
+}
+#endif
\ No newline at end of file
diff --git a/source/libs/sync/src/syncMessage.c b/source/libs/sync/src/syncMessage.c
index 5a55bbc11f..8d2ff6a9a5 100644
--- a/source/libs/sync/src/syncMessage.c
+++ b/source/libs/sync/src/syncMessage.c
@@ -65,10 +65,32 @@ cJSON* syncRpcMsg2Json(SRpcMsg* pRpcMsg) {
     pRoot = syncAppendEntriesReply2Json(pSyncMsg);
     syncAppendEntriesReplyDestroy(pSyncMsg);
 
+  } else if (pRpcMsg->msgType == SYNC_RESPONSE) {
+    pRoot = cJSON_CreateObject();
+    char* s;
+    s = syncUtilprintBin((char*)(pRpcMsg->pCont), pRpcMsg->contLen);
+    cJSON_AddStringToObject(pRoot, "pCont", s);
+    free(s);
+    s = syncUtilprintBin2((char*)(pRpcMsg->pCont), pRpcMsg->contLen);
+    cJSON_AddStringToObject(pRoot, "pCont2", s);
+    free(s);
+
   } else {
     pRoot = syncRpcUnknownMsg2Json();
+    char* s;
+    s = syncUtilprintBin((char*)(pRpcMsg->pCont), pRpcMsg->contLen);
+    cJSON_AddStringToObject(pRoot, "pCont", s);
+    free(s);
+    s = syncUtilprintBin2((char*)(pRpcMsg->pCont), pRpcMsg->contLen);
+    cJSON_AddStringToObject(pRoot, "pCont2", s);
+    free(s);
   }
 
+  cJSON_AddNumberToObject(pRoot, "msgType", pRpcMsg->msgType);
+  cJSON_AddNumberToObject(pRoot, "contLen", pRpcMsg->contLen);
+  cJSON_AddNumberToObject(pRoot, "code", pRpcMsg->code);
+  cJSON_AddNumberToObject(pRoot, "persist", pRpcMsg->persist);
+
   cJSON* pJson = cJSON_CreateObject();
   cJSON_AddItemToObject(pJson, "RpcMsg", pRoot);
   return pJson;
@@ -77,7 +99,7 @@ cJSON* syncRpcMsg2Json(SRpcMsg* pRpcMsg) {
 cJSON* syncRpcUnknownMsg2Json() {
   cJSON* pRoot = cJSON_CreateObject();
   cJSON_AddNumberToObject(pRoot, "msgType", SYNC_UNKNOWN);
-  cJSON_AddStringToObject(pRoot, "data", "known message");
+  cJSON_AddStringToObject(pRoot, "data", "unknown message");
 
   cJSON* pJson = cJSON_CreateObject();
   cJSON_AddItemToObject(pJson, "SyncUnknown", pRoot);
diff --git a/source/libs/sync/test/syncIOTickPingTest.cpp b/source/libs/sync/test/syncIOTickPingTest.cpp
index 8be93e6fc0..9c2342828e 100644
--- a/source/libs/sync/test/syncIOTickPingTest.cpp
+++ b/source/libs/sync/test/syncIOTickPingTest.cpp
@@ -25,8 +25,15 @@ int main() {
   ret = syncIOStart((char*)"127.0.0.1", 7010);
   assert(ret == 0);
 
-  ret = syncIOTickPing();
-  assert(ret == 0);
+  for (int i = 0; i < 3; ++i) {
+    ret = syncIOPingTimerStart();
+    assert(ret == 0);
+    taosMsleep(5000);
+
+    ret = syncIOPingTimerStop();
+    assert(ret == 0);
+    taosMsleep(5000);
+  }
 
   while (1) {
     taosSsleep(1);
diff --git a/source/libs/sync/test/syncIOTickQTest.cpp b/source/libs/sync/test/syncIOTickQTest.cpp
index 76f5e33e82..64b65f25c8 100644
--- a/source/libs/sync/test/syncIOTickQTest.cpp
+++ b/source/libs/sync/test/syncIOTickQTest.cpp
@@ -25,11 +25,18 @@ int main() {
   ret = syncIOStart((char*)"127.0.0.1", 7010);
   assert(ret == 0);
 
-  ret = syncIOTickQ();
+  for (int i = 0; i < 3; ++i) {
+    ret = syncIOQTimerStart();
+    assert(ret == 0);
+    taosMsleep(5000);
+
+    ret = syncIOQTimerStop();
+    assert(ret == 0);
+    taosMsleep(5000);
+  }
+
+  ret = syncIOStop();
   assert(ret == 0);
 
-  while (1) {
-    taosSsleep(1);
-  }
   return 0;
 }
diff --git a/source/libs/sync/test/syncUtilTest.cpp b/source/libs/sync/test/syncUtilTest.cpp
index 9a1c113620..663db3a7b3 100644
--- a/source/libs/sync/test/syncUtilTest.cpp
+++ b/source/libs/sync/test/syncUtilTest.cpp
@@ -26,6 +26,7 @@ int main() {
   tsAsyncLog = 0;
   sDebugFlag = 143 + 64;
   logTest();
+
   electRandomMSTest();
 
   return 0;