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https://issues.apache.org/jira/browse/YARN-8051?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16424158#comment-16424158
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Hudson commented on YARN-8051:
------------------------------
SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #13918 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/13918/])
YARN-8051. TestRMEmbeddedElector#testCallbackSynchronization is flaky.
(haibochen: rev 93d47a0ed504ee81d4b74d340c1815bdbb3c9b14)
* (edit)
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/TestRMEmbeddedElector.java
> TestRMEmbeddedElector#testCallbackSynchronization is flakey
> -----------------------------------------------------------
>
> Key: YARN-8051
> URL: https://issues.apache.org/jira/browse/YARN-8051
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: test
> Affects Versions: 3.2.0
> Reporter: Robert Kanter
> Assignee: Robert Kanter
> Priority: Major
> Fix For: 3.2.0
>
> Attachments: YARN-8051.001.patch, YARN-8051.002.patch
>
>
> We've seen some rare flakey failures in
> {{TestRMEmbeddedElector#testCallbackSynchronization}}:
> {noformat}
> org.mockito.exceptions.verification.WantedButNotInvoked:
> Wanted but not invoked:
> adminService.transitionToStandby(<any>);
> -> at
> org.apache.hadoop.yarn.server.resourcemanager.TestRMEmbeddedElector.testCallbackSynchronizationNeutral(TestRMEmbeddedElector.java:215)
> Actually, there were zero interactions with this mock.
> at
> org.apache.hadoop.yarn.server.resourcemanager.TestRMEmbeddedElector.testCallbackSynchronizationNeutral(TestRMEmbeddedElector.java:215)
> at
> org.apache.hadoop.yarn.server.resourcemanager.TestRMEmbeddedElector.testCallbackSynchronization(TestRMEmbeddedElector.java:146)
> at
> org.apache.hadoop.yarn.server.resourcemanager.TestRMEmbeddedElector.testCallbackSynchronization(TestRMEmbeddedElector.java:109)
> {noformat}
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