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https://issues.apache.org/jira/browse/TEZ-3128?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15154982#comment-15154982
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Siddharth Seth commented on TEZ-3128:
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Yep. That works. The timeouts while an app are running are also way too high.
> Avoid stopping containers on the AM shutdown thread
> ---------------------------------------------------
>
> Key: TEZ-3128
> URL: https://issues.apache.org/jira/browse/TEZ-3128
> Project: Apache Tez
> Issue Type: Bug
> Affects Versions: 0.8.0-alpha
> Reporter: Siddharth Seth
>
> During an AM shutdown, the TaskCommunicator is also shutdown and it tries to
> stop containers in the shutdown thread itself. This can cause the AM shutdown
> to block if NMs are not available.
> This likely affects 0.7 as well.
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