refactor(sync): add resp ttl clean

source/libs/sync/src/syncRespMgr.c

@@ -146,6 +146,8 @@ void syncRespCleanByTTL(SSyncRespMgr *pObj, int64_t ttl) {
       cbMeta.currentTerm = pSyncNode->pRaftStore->currentTerm;
       cbMeta.flag = 0;
 
+      pStub->rpcMsg.pCont = NULL;
+      pStub->rpcMsg.contLen = 0;
       pSyncNode->pFsm->FpCommitCb(pSyncNode->pFsm, &(pStub->rpcMsg), cbMeta);
     }
 

source/libs/sync/src/syncTimeout.c

@@ -20,7 +20,10 @@
 
 int32_t syncNodeTimerRoutine(SSyncNode* ths) {
   syncNodeEventLog(ths, "timer routines ... ");
+
+  if (ths->vgId != 1) {
     syncRespClean(ths->pSyncRespMgr);
+  }
   return 0;
 }