[td-1641]

src/client/inc/tscUtil.h

@@ -207,8 +207,6 @@ void tscTagCondRelease(STagCond* pCond);
 
 void tscGetSrcColumnInfo(SSrcColumnInfo* pColInfo, SQueryInfo* pQueryInfo);
 
-void tscSetFreeHeatBeat(STscObj* pObj);
-bool tscShouldFreeHeartBeat(SSqlObj* pHb);
 bool tscShouldBeFreed(SSqlObj* pSql);
 
 STableMetaInfo* tscGetTableMetaInfoFromCmd(SSqlCmd *pCmd, int32_t subClauseIndex, int32_t tableIndex);

src/client/src/tscServer.c

@@ -198,16 +198,20 @@ void tscProcessActivityTimer(void *handle, void *tmrId) {
     return;
   }
 
-  if (tscShouldFreeHeartBeat(pHB)) {
-    tscDebug("%p free HB object and release connection", pHB);
-    pObj->pHb = 0;
-    taos_free_result(pHB);
-  } else {
+  void** p = taosCacheAcquireByKey(tscObjCache, &pHB->self, sizeof(TSDB_CACHE_PTR_TYPE));
+  if (p == NULL) {
+    tscWarn("%p HB object has been released already", pHB);
+    return;
+  }
+
+  assert(*pHB->self == pHB);
+
   int32_t code = tscProcessSql(pHB);
+  taosCacheRelease(tscObjCache, (void**) &p, false);
+
   if (code != TSDB_CODE_SUCCESS) {
     tscError("%p failed to sent HB to server, reason:%s", pHB, tstrerror(code));
   }
-  }
 }
 
 int tscSendMsgToServer(SSqlObj *pSql) {

src/client/src/tscUtil.c

@@ -1516,13 +1516,6 @@ void tscSetFreeHeatBeat(STscObj* pObj) {
   pQueryInfo->type = TSDB_QUERY_TYPE_FREE_RESOURCE;
 }
 
-bool tscShouldFreeHeartBeat(SSqlObj* pHb) {
-  assert(pHb == pHb->signature);
-
-  SQueryInfo* pQueryInfo = tscGetQueryInfoDetail(&pHb->cmd, 0);
-  return pQueryInfo->type == TSDB_QUERY_TYPE_FREE_RESOURCE;
-}
-
 /*
  * the following four kinds of SqlObj should not be freed
  * 1. SqlObj for stream computing