From 09e727544dadf5b1425c2857e58821d6588a08e9 Mon Sep 17 00:00:00 2001
From: Haojun Liao <hjliao@taosdata.com>
Date: Fri, 4 Dec 2020 17:22:19 +0800
Subject: [PATCH] [TD-225] fix bugs in heartBeatactivitytimer

---
 src/client/src/tscServer.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/client/src/tscServer.c b/src/client/src/tscServer.c
index 5e3acaa0b7..a011ac2f3a 100644
--- a/src/client/src/tscServer.c
+++ b/src/client/src/tscServer.c
@@ -191,9 +191,16 @@ void tscProcessHeartBeatRsp(void *param, TAOS_RES *tres, int code) {
 void tscProcessActivityTimer(void *handle, void *tmrId) {
   int64_t rid = (int64_t) handle;
   STscObj *pObj = taosAcquireRef(tscRefId, rid);
-  if (pObj == NULL) return; 
+  if (pObj == NULL) {
+    return;
+  }
 
   SSqlObj* pHB = taosAcquireRef(tscObjRef, pObj->hbrid);
+  if (pHB == NULL) {
+    taosReleaseRef(tscRefId, rid);
+    return;
+  }
+
   assert(pHB->self == pObj->hbrid);
 
   pHB->retry = 0;
-- 
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