From f78843fa09b1024fbc6212b775a347ae8a261b52 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E7=AB=A0=E9=94=A1=E5=B9=B3?=
 <40832063+zhangxiping1@users.noreply.github.com>
Date: Fri, 17 Mar 2023 17:48:13 +0800
Subject: [PATCH] YARN-11447 A bug occurs during the active/standby switchover
 of RM, causing RM to work abnormally

---
 .../hadoop/yarn/server/resourcemanager/ResourceManager.java     | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/ResourceManager.java b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/ResourceManager.java
index da500add4cbf6..d35ebba097929 100644
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/ResourceManager.java
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/ResourceManager.java
@@ -1225,6 +1225,8 @@ public void run() {
         } catch (Exception e) {
           LOG.error(FATAL, "Failed to transition RM to Standby mode.", e);
           ExitUtil.terminate(1, e);
+        } finally {
+          hasAlreadyRun.set(false);
         }
       }
     }