From 1b885087e7ec58e362f4688212062223849ef759 Mon Sep 17 00:00:00 2001
From: yejiacai <yejiacai@huawei.com>
Date: Thu, 23 Feb 2023 16:52:08 +0800
Subject: [PATCH] fix dms event bug

---
 src/gausskernel/cbb/instruments/event/instr_waitevent.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/gausskernel/cbb/instruments/event/instr_waitevent.cpp b/src/gausskernel/cbb/instruments/event/instr_waitevent.cpp
index c0fdaab09..3fe9f39f3 100644
--- a/src/gausskernel/cbb/instruments/event/instr_waitevent.cpp
+++ b/src/gausskernel/cbb/instruments/event/instr_waitevent.cpp
@@ -403,7 +403,9 @@ static void set_dms_event_tuple_value(WaitInfo* gsInstrWaitInfo, Datum* values,
     values[++i] = CStringGetTextDatum(pgstat_get_wait_dms(WaitEventDMS(eventId + PG_WAIT_DMS)));
     unsigned long long cnt = 0;
     unsigned long long time = 0; 
-    dms_get_event(dms_wait_event_t(eventId), &cnt, &time);
+    if (g_instance.dms_cxt.dmsInited) {
+        dms_get_event(dms_wait_event_t(eventId), &cnt, &time);
+    }
     values[++i] = Int64GetDatum(cnt);
     values[++i] = Int64GetDatum(gsInstrWaitInfo->event_info.dms_info[eventId].failed_counter);
     values[++i] = Int64GetDatum(time);