diff --git a/src/client/src/tscAsync.c b/src/client/src/tscAsync.c
index b7b3441bd18606d3b6444e508587f6552efc08ff..c693df1f3b31878f251a3a28a350f9d8a2ff9c5e 100644
--- a/src/client/src/tscAsync.c
+++ b/src/client/src/tscAsync.c
@@ -95,7 +95,7 @@ void taos_query_a(TAOS *taos, const char *sqlstr, __async_cb_func_t fp, void *pa
     return;
   }
   
-  nPrintTsc(sqlstr);
+  nPrintTsc("%s", sqlstr);
   
   SSqlObj *pSql = (SSqlObj *)calloc(1, sizeof(SSqlObj));
   if (pSql == NULL) {
@@ -365,7 +365,7 @@ static void tscProcessAsyncError(SSchedMsg *pMsg) {
   void (*fp)() = pMsg->ahandle;
   terrno = *(int32_t*) pMsg->msg;
   tfree(pMsg->msg);
-  (*fp)(pMsg->thandle, NULL, *(int32_t*)pMsg->msg);
+  (*fp)(pMsg->thandle, NULL, terrno);
 }
 
 void tscQueueAsyncError(void(*fp), void *param, int32_t code) {
diff --git a/src/client/src/tscSql.c b/src/client/src/tscSql.c
index 377cb24b1d5b1c92c702cd113c4feea185617911..92a2198a8089d2ab3e288ca52657df89fbcd5e43 100644
--- a/src/client/src/tscSql.c
+++ b/src/client/src/tscSql.c
@@ -327,7 +327,7 @@ TAOS_RES* taos_query_c(TAOS *taos, const char *sqlstr, uint32_t sqlLen, int64_t*
     return NULL;
   }
 
-  nPrintTsc(sqlstr);
+  nPrintTsc("%s", sqlstr);
 
   SSqlObj* pSql = calloc(1, sizeof(SSqlObj));
   if (pSql == NULL) {
diff --git a/src/plugins/http/src/httpSql.c b/src/plugins/http/src/httpSql.c
index 3e517c6fa682ce28ee2416aee3672a8628f953cf..cc8e9e86e37dea8de50d624435662c1e21ff4a94 100644
--- a/src/plugins/http/src/httpSql.c
+++ b/src/plugins/http/src/httpSql.c
@@ -181,7 +181,7 @@ void httpProcessMultiSql(HttpContext *pContext) {
   char *sql = httpGetCmdsString(pContext, cmd->sql);
   httpTraceL("context:%p, fd:%d, user:%s, process pos:%d, start query, sql:%s", pContext, pContext->fd, pContext->user,
              multiCmds->pos, sql);
-  nPrintHttp(sql);
+  nPrintHttp("%s", sql);
   taos_query_a(pContext->session->taos, sql, httpProcessMultiSqlCallBack, (void *)pContext);
 }
 
@@ -329,7 +329,7 @@ void httpProcessSingleSqlCmd(HttpContext *pContext) {
   }
 
   httpTraceL("context:%p, fd:%d, user:%s, start query, sql:%s", pContext, pContext->fd, pContext->user, sql);
-  nPrintHttp(sql);
+  nPrintHttp("%s", sql);
   taos_query_a(pSession->taos, sql, httpProcessSingleSqlCallBack, (void *)pContext);
 }
 
diff --git a/src/vnode/src/vnodeMain.c b/src/vnode/src/vnodeMain.c
index fe0fa6326339167649d05e142d2cb685b025cdba..57482482be062ee8934d3e9808a096397f35934c 100644
--- a/src/vnode/src/vnodeMain.c
+++ b/src/vnode/src/vnodeMain.c
@@ -409,9 +409,6 @@ void vnodeCleanUp(SVnodeObj *pVnode) {
 
   vnodeSetClosingStatus(pVnode);
 
-  // release local resources only after cutting off outside connections
-  qQueryMgmtNotifyClosed(pVnode->qMgmt);
-
   // stop replication module
   if (pVnode->sync > 0) {
     int64_t sync = pVnode->sync;
diff --git a/src/vnode/src/vnodeStatus.c b/src/vnode/src/vnodeStatus.c
index ce7ddd11b529c7da22519af3c657e4e898aea2ea..c016b78396772f917e5eded4e73d375c345a1d55 100644
--- a/src/vnode/src/vnodeStatus.c
+++ b/src/vnode/src/vnodeStatus.c
@@ -75,6 +75,9 @@ bool vnodeSetClosingStatus(SVnodeObj* pVnode) {
     }
   }
 
+  // release local resources only after cutting off outside connections
+  qQueryMgmtNotifyClosed(pVnode->qMgmt);
+
   return true;
 }
 
@@ -116,6 +119,9 @@ bool vnodeSetResetStatus(SVnodeObj* pVnode) {
     }
   }
 
+  // release local resources only after cutting off outside connections
+  qQueryMgmtNotifyClosed(pVnode->qMgmt);
+
   return true;
 }
 
diff --git a/tests/pytest/functions/function_percentile.py b/tests/pytest/functions/function_percentile.py
index e793008ce681a04111fdee29e91520fed944d05a..688e91eefa79348a88f37f3b7cb0cc1ac63152d8 100644
--- a/tests/pytest/functions/function_percentile.py
+++ b/tests/pytest/functions/function_percentile.py
@@ -144,8 +144,10 @@ class TDTestCase:
         print("apercentile result: %s" % tdSql.getData(0, 0))
 
         # Test case for: https://jira.taosdata.com:18080/browse/TD-2609
+
+        # modified for : https://jira.taosdata.com:18080/browse/TD-2627
         tdSql.execute("create table st(ts timestamp, k int)")
-        tdSql.execute("insert into st values(now, -100)")
+        tdSql.execute("insert into st values(now, -100)(now+1a,-99)")
         tdSql.query("select apercentile(k, 20) from st")
         tdSql.checkData(0, 0, -100.00)