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YARN-11839. [RM HA] - In corner case, RM stay in ACTIVE with RMStateStore in FENCED state #7999

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YARN-11839. [RM HA] - In corner case, RM stay in ACTIVE with RMStateStore in FENCED state #7999

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6 changes: 5 additions & 1 deletion ...emanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/ResourceManager.java
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Original file line number Diff line number Diff line change
Expand Up @@ -1218,7 +1218,11 @@ protected void serviceStop() throws Exception {
* Transition to standby state in a new thread. The transition operation is
* asynchronous to avoid deadlock caused by cyclic dependency.
*/
private void handleTransitionToStandByInNewThread() {
private synchronized void handleTransitionToStandByInNewThread() {
if (rmContext.getHAServiceState() == HAServiceProtocol.HAServiceState.STANDBY) {
LOG.info("RM already in standby state");
return;
}
Thread standByTransitionThread =
new Thread(activeServices.standByTransitionRunnable);
standByTransitionThread.setName("StandByTransitionThread");
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