diff --git a/source/util/src/tcache.c b/source/util/src/tcache.c
index c4e85a425e1c9af3beb8146ca58685756989d067..a69f11f285053922e1625f602c46560c6ef1a1ec 100644
--- a/source/util/src/tcache.c
+++ b/source/util/src/tcache.c
@@ -910,6 +910,8 @@ void taosCacheRefresh(SCacheObj *pCacheObj, __cache_trav_fn_t fp, void *param1)
 
 void taosStopCacheRefreshWorker(void) {
   stopRefreshWorker = true;
+  taosThreadJoin(cacheRefreshWorker, NULL);
+  taosArrayDestroy(pCacheArrayList);
 }
 
 size_t taosCacheGetNumOfObj(const SCacheObj* pCacheObj) {