diff --git a/source/client/inc/clientInt.h b/source/client/inc/clientInt.h
index 1df032c498a841b91abaa89dc4e819eda75673bd..211b47b49c082c89591b23632e3750190a27b2e2 100644
--- a/source/client/inc/clientInt.h
+++ b/source/client/inc/clientInt.h
@@ -63,7 +63,7 @@ typedef struct {
   // statistics
   int32_t reportCnt;
   int32_t connKeyCnt;
-  int32_t nPassVerCb;
+  int32_t passKeyCnt;   // with passVer call back
   int64_t reportBytes;  // not implemented
   int64_t startTime;
   // ctl
diff --git a/source/client/src/clientHb.c b/source/client/src/clientHb.c
index 473d7c2e7d356c8b5913ebcfc44546aaf3bd1f05..277f74c77d4d5ced6ff394fdb95f4fb91e54ad96 100644
--- a/source/client/src/clientHb.c
+++ b/source/client/src/clientHb.c
@@ -68,6 +68,7 @@ static int32_t hbProcessUserPassInfoRsp(void *value, int32_t valueLen, SClientHb
     }
     SPassInfo *passInfo = &pTscObj->passInfo;
     if (!passInfo->fp) {
+      releaseTscObj(pReq->connKey.tscRid);
       continue;
     }
 
@@ -770,11 +771,11 @@ SClientHbBatchReq *hbGatherAllInfo(SAppHbMgr *pAppHbMgr) {
     return NULL;
   }
 
-  int32_t nPassVerCb = atomic_load_32(&pAppHbMgr->nPassVerCb);
+  int32_t passKeyCnt = atomic_load_32(&pAppHbMgr->passKeyCnt);
   while (pIter != NULL) {
     pOneReq = taosArrayPush(pBatchReq->reqs, pOneReq);
     code = (*clientHbMgr.reqHandle[pOneReq->connKey.connType])(&pOneReq->connKey, &pOneReq->clusterId, pOneReq,
-                                                               nPassVerCb);
+                                                               passKeyCnt);
     break;
 
 #if 0
@@ -1142,6 +1143,6 @@ void hbDeregisterConn(SAppHbMgr *pAppHbMgr, SClientHbKey connKey, void *connFp)
 
   atomic_sub_fetch_32(&pAppHbMgr->connKeyCnt, 1);
   if (connFp) {
-    atomic_sub_fetch_32(&pAppHbMgr->nPassVerCb, 1);
+    atomic_sub_fetch_32(&pAppHbMgr->passKeyCnt, 1);
   }
 }
diff --git a/source/client/src/clientMain.c b/source/client/src/clientMain.c
index 3f29249e52354fd53d681d631b23644fd96eb5d1..aed11b4fb153983e02d05d2d2d59f5d4a0b7a94d 100644
--- a/source/client/src/clientMain.c
+++ b/source/client/src/clientMain.c
@@ -137,7 +137,7 @@ int taos_set_notify_cb(TAOS *taos, __taos_notify_fn_t fp, void *param, int type)
       pObj->passInfo.fp = fp;
       pObj->passInfo.param = param;
       if (fp) {
-        atomic_add_fetch_32(&pObj->pAppInfo->pAppHbMgr->nPassVerCb, 1);
+        atomic_add_fetch_32(&pObj->pAppInfo->pAppHbMgr->passKeyCnt, 1);
       }
       break;
     }