diff --git a/src/client/src/tscAsync.c b/src/client/src/tscAsync.c
index 36cd42332b0d84b09798138080da33a856f26a21..62888234019cf2fe9e77fe476b731e6918499d7a 100644
--- a/src/client/src/tscAsync.c
+++ b/src/client/src/tscAsync.c
@@ -342,8 +342,8 @@ void tscProcessAsyncRes(SSchedMsg *pMsg) {
   (*pSql->fp)(pSql->param, taosres, code);
 
   if (shouldFree) {
-    tscFreeSqlObj(pSql);
     tscTrace("%p Async sql is automatically freed in async res", pSql);
+    tscFreeSqlObj(pSql);
   }
 }
 
diff --git a/src/client/src/tscProfile.c b/src/client/src/tscProfile.c
index 00c8d776190fc2cff077fd9be87e8ac966f4d5cd..739ae7848e6222ee650031649192593991299544 100644
--- a/src/client/src/tscProfile.c
+++ b/src/client/src/tscProfile.c
@@ -292,7 +292,6 @@ void tscKillConnection(STscObj *pObj) {
 
   pthread_mutex_unlock(&pObj->mutex);
 
-  taos_close(pObj);
-
   tscTrace("connection:%p is killed", pObj);
+  taos_close(pObj);
 }
diff --git a/src/client/src/tscServer.c b/src/client/src/tscServer.c
index 66d5e17747122dd5bd49574d81c14416047c3c49..5ea6941fffcc3403d89b21ed2bb97a6747edc8d9 100644
--- a/src/client/src/tscServer.c
+++ b/src/client/src/tscServer.c
@@ -343,8 +343,8 @@ void tscProcessMsgFromServer(SRpcMsg *rpcMsg) {
     (*pSql->fp)(pSql->param, taosres, rpcMsg->code);
 
     if (shouldFree) {
-      tscFreeSqlObj(pSql);
       tscTrace("%p Async sql is automatically freed", pSql);
+      tscFreeSqlObj(pSql);
     }
   }
 
diff --git a/src/client/src/tscSql.c b/src/client/src/tscSql.c
index f6c1fee633308260da4c8c9ce8c5e327c67338fb..199b4150e81eb52ebe4914b36d4ba9a64a51e44e 100644
--- a/src/client/src/tscSql.c
+++ b/src/client/src/tscSql.c
@@ -757,8 +757,8 @@ void taos_free_result_imp(TAOS_RES *res, int keepCmd) {
     tscTrace("%p qhandle is null, abort free, fp:%p", pSql, pSql->fp);
     
     if (tscShouldFreeAsyncSqlObj(pSql)) {
-      tscFreeSqlObj(pSql);
       tscTrace("%p Async SqlObj is freed by app", pSql);
+      tscFreeSqlObj(pSql);
     } else {
       if (keepCmd) {
         tscFreeSqlResult(pSql);
diff --git a/src/client/src/tscStream.c b/src/client/src/tscStream.c
index 4fadad5021b5841f482f365f9a6d07ea6777ad9b..f586db3d08d5decfa3458b789d6dd4eb856e84ef 100644
--- a/src/client/src/tscStream.c
+++ b/src/client/src/tscStream.c
@@ -582,10 +582,12 @@ void taos_close_stream(TAOS_STREAM *handle) {
     tscRemoveFromStreamList(pStream, pSql);
 
     taosTmrStopA(&(pStream->pTimer));
+
+    tscTrace("%p stream:%p is closed", pSql, pStream);
+
     tscFreeSqlObj(pSql);
     pStream->pSql = NULL;
 
-    tscTrace("%p stream:%p is closed", pSql, pStream);
     tfree(pStream);
   }
 }