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https://issues.apache.org/jira/browse/YARN-9277?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16766880#comment-16766880
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Zhaohui Xin commented on YARN-9277:
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Hi, [~wilfreds], you can see issue
[YARN-8061|https://issues.apache.org/jira/browse/YARN-8061]: An application may
preempt itself in case of minshare preemption. In my opinion, even if this will
not happen, we should also add this sanity check.
> Add more restrictions In FairScheduler Preemption
> --------------------------------------------------
>
> Key: YARN-9277
> URL: https://issues.apache.org/jira/browse/YARN-9277
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: fairscheduler
> Reporter: Zhaohui Xin
> Assignee: Zhaohui Xin
> Priority: Major
> Attachments: YARN-9277.001.patch, YARN-9277.002.patch
>
>
>
> I think we should add more restrictions in fair scheduler preemption.
> * We should not preempt self
> * We should not preempt high priority job
> * We should not preempt container which has been running for a long time.
> * ...
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