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https://issues.apache.org/jira/browse/YARN-9431?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16807337#comment-16807337
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Wilfred Spiegelenburg commented on YARN-9431:
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Thank you [~giovanni.fumarola] for the commit and [~pbacsko] for confirming the
fix
> Fix flaky junit test fair.TestAppRunnability after YARN-8967
> ------------------------------------------------------------
>
> Key: YARN-9431
> URL: https://issues.apache.org/jira/browse/YARN-9431
> Project: Hadoop YARN
> Issue Type: Bug
> Components: fairscheduler, test
> Affects Versions: 3.3.0
> Reporter: Wilfred Spiegelenburg
> Assignee: Wilfred Spiegelenburg
> Priority: Minor
> Fix For: 3.3.0
>
> Attachments: YARN-9431.001.patch
>
>
> In YARN-4901 one of the scheduler tests failed. This seems to be linked to
> the changes around the placement rules introduced in YARN-8967.
> Applications submitted in the tests are accepted and rejected at the same
> time:
> {code}
> 2019-04-01 12:00:57,269 INFO [main] fair.FairScheduler
> (FairScheduler.java:addApplication(540)) - Accepted application
> application_0_0001 from user: user1, in queue: root.user1, currently num of
> applications: 1
> 2019-04-01 12:00:57,269 INFO [AsyncDispatcher event handler]
> fair.FairScheduler (FairScheduler.java:rejectApplicationWithMessage(1344)) -
> Reject application application_0_0001 submitted by user user1 application
> rejected by placement rules.
> {code}
> This should never happen and is most likely due to the way the tests
> generates the application and events.
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