diff --git a/source/client/src/clientHb.c b/source/client/src/clientHb.c
index a146712cab..b1f0ea55d8 100644
--- a/source/client/src/clientHb.c
+++ b/source/client/src/clientHb.c
@@ -496,6 +496,11 @@ static int32_t hbAsyncCallBack(void *param, SDataBuf *pMsg, int32_t code) {
   if (code != 0) {
     pInst->onlineDnodes = pInst->totalDnodes ? 0 : -1;
     tscDebug("hb rsp error %s, update server status %d/%d", tstrerror(code), pInst->onlineDnodes, pInst->totalDnodes);
+    taosThreadMutexUnlock(&clientHbMgr.lock);
+    taosMemoryFree(pMsg->pData);
+    taosMemoryFree(pMsg->pEpSet);
+    tFreeClientHbBatchRsp(&pRsp);
+    return -1;
   }
 
   if (rspNum) {