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https://issues.apache.org/jira/browse/TEZ-2687?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14654746#comment-14654746
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Gopal V commented on TEZ-2687:
------------------------------
These two seem to be the only ones which block, the re-ordering seems to be
enough to release all containers cleanly when history service blocks.
> ATS History shutdown happens before the min-held containers are released
> ------------------------------------------------------------------------
>
> Key: TEZ-2687
> URL: https://issues.apache.org/jira/browse/TEZ-2687
> Project: Apache Tez
> Issue Type: Bug
> Affects Versions: 0.6.2, 0.8.0, 0.7.1
> Reporter: Gopal V
> Assignee: Gopal V
> Attachments: TEZ-2687.1.patch
>
>
> When ATS goes into a GC pause under heavy loads and while it recovers, each
> Tez AM holds onto a few containers even though it is shutting down and will
> never accept any more DAGs.
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