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https://issues.apache.org/jira/browse/YARN-9537?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16836625#comment-16836625
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Yufei Gu commented on YARN-9537:
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FairScheduler doesn't prevent you from preempting the AM container. It just
tries to preempt as less AM containers as possible.
> Add configuration to support AM preemption
> ------------------------------------------
>
> Key: YARN-9537
> URL: https://issues.apache.org/jira/browse/YARN-9537
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: fairscheduler
> Reporter: zhoukang
> Priority: Major
>
> In our production cluster, we can tolerate am preemption. So we can add a
> configuration to support am preemption.
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