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https://issues.apache.org/jira/browse/YARN-6334?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15927002#comment-15927002
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Yufei Gu commented on YARN-6334:
--------------------------------
No, we don't hit the bug a lot. Flakiness is possible because of sleeping too
short. Tested more than 50 times, no related failures. But I agree with you
that 2000 * 1 = 2000 ms waiting time may be too short. I will increase it to
20s in next patch.
> TestRMFailover#testAutomaticFailover always passes even RM didn't transition
> to Standby.
> ----------------------------------------------------------------------------------------
>
> Key: YARN-6334
> URL: https://issues.apache.org/jira/browse/YARN-6334
> Project: Hadoop YARN
> Issue Type: Bug
> Reporter: Yufei Gu
> Assignee: Yufei Gu
> Attachments: YARN-6334.001.patch, YARN-6334.002.patch,
> YARN-6334.003.patch
>
>
> Due to a bug in {{while}} loop.
> {code}
> int maxWaitingAttempts = 2000;
> while (maxWaitingAttempts-- > 0 ) {
> if (rm.getRMContext().getHAServiceState() == HAServiceState.STANDBY) {
> break;
> }
> Thread.sleep(1);
> }
> Assert.assertFalse("RM didn't transition to Standby ",
> maxWaitingAttempts == 0);
> {code}
> maxWaitingAttempts is -1 if RM didn't transition to Standby.
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