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https://issues.apache.org/jira/browse/YARN-6359?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15930358#comment-15930358
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Jason Lowe commented on YARN-6359:
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Thanks for the report and patch!
The timeout in the loop is 80 seconds, but there's a 60 second timeout for the
entire test which seems weird. Is that why the loop doesn't check if the
timeout occurred after it completes? It'd be nice to use
GenericTestUtils#waitFor to have it check for timeouts, do the stacktrace if it
does timeout, etc.
> TestRM#testApplicationKillAtAcceptedState fails rarely due to race condition
> ----------------------------------------------------------------------------
>
> Key: YARN-6359
> URL: https://issues.apache.org/jira/browse/YARN-6359
> Project: Hadoop YARN
> Issue Type: Bug
> Components: test
> Affects Versions: 2.9.0, 3.0.0-alpha3
> Reporter: Robert Kanter
> Assignee: Robert Kanter
> Attachments: YARN-6359.001.patch
>
>
> We've seen (very rarely) a test failure in
> {{TestRM#testApplicationKillAtAcceptedState}}
> {noformat}
> java.lang.AssertionError: expected:<1> but was:<0>
> at org.junit.Assert.fail(Assert.java:88)
> at org.junit.Assert.failNotEquals(Assert.java:743)
> at org.junit.Assert.assertEquals(Assert.java:118)
> at org.junit.Assert.assertEquals(Assert.java:555)
> at org.junit.Assert.assertEquals(Assert.java:542)
> at
> org.apache.hadoop.yarn.server.resourcemanager.TestRM.testApplicationKillAtAcceptedState(TestRM.java:645)
> {noformat}
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