From 8db6a395aa7fcbd7b350a10a09848fffeed1b408 Mon Sep 17 00:00:00 2001
From: wangmm0220 <wangmm0220@gmail.com>
Date: Wed, 3 Jul 2024 19:04:16 +0800
Subject: [PATCH] fix:[TD-30879]check if hash is freed before inc counter

---
 source/client/src/clientMonitor.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/source/client/src/clientMonitor.c b/source/client/src/clientMonitor.c
index a102995c0d..479ea76fe3 100644
--- a/source/client/src/clientMonitor.c
+++ b/source/client/src/clientMonitor.c
@@ -307,6 +307,11 @@ end:
 
 void monitorCounterInc(int64_t clusterId, const char* counterName, const char** label_values) {
   taosWLockLatch(&monitorLock);
+  if (atomic_load_32(&monitorFlag) == 1) {
+    taosRUnLockLatch(&monitorLock);
+    return;
+  }
+
   MonitorClient** ppMonitor = (MonitorClient**)taosHashGet(monitorCounterHash, &clusterId, LONG_BYTES);
   if (ppMonitor == NULL || *ppMonitor == NULL) {
     tscError("monitorCounterInc not found pMonitor %"PRId64, clusterId);