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https://issues.apache.org/jira/browse/YARN-8127?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16433317#comment-16433317
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Tao Yang commented on YARN-8127:
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Attached v2 patch to fix UT and the check-style error
> Resource leak when async scheduling is enabled
> ----------------------------------------------
>
> Key: YARN-8127
> URL: https://issues.apache.org/jira/browse/YARN-8127
> Project: Hadoop YARN
> Issue Type: Bug
> Reporter: Weiwei Yang
> Assignee: Tao Yang
> Priority: Critical
> Attachments: YARN-8127.001.patch, YARN-8127.002.patch
>
>
> Brief steps to reproduce
> # Enable async scheduling, 5 threads
> # Submit a lot of jobs trying to exhaust cluster resource
> # After a while, observed NM allocated resource is more than resource
> requested by allocated containers
> Looks like the commit phase is not sync handling reserved containers, causing
> some proposal incorrectly accepted, subsequently resource was deducted
> multiple times for a container.
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