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https://issues.apache.org/jira/browse/YARN-5436?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Zhiyuan Yang updated YARN-5436:
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Attachment: (was: YARN-5436.3.patch)
> Race in AsyncDispatcher can cause random test failures in Tez(probably YARN
> also )
> ----------------------------------------------------------------------------------
>
> Key: YARN-5436
> URL: https://issues.apache.org/jira/browse/YARN-5436
> Project: Hadoop YARN
> Issue Type: Bug
> Reporter: Zhiyuan Yang
> Assignee: Zhiyuan Yang
> Attachments: YARN-5436.1.patch, YARN-5436.2.patch
>
>
> In YARN-2264, a race in DrainDispatcher was fixed. Unfortunately, it also
> exists in AsyncDispatcher (this was found and ignored in YARN-3878 but never
> documented...). In YARN-2991, another DrainDispatcher bug was fixed by
> letting DrainDispatcher reuse some AsyncDispatcher method because
> AsyncDispatcher doesn't have such issue. However, this shadows YARN-2264, and
> now similar race reappears in Tez unit tests (probably also YARN unit tests
> also).
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