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https://issues.apache.org/jira/browse/YARN-11185?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Szilard Nemeth resolved YARN-11185.
-----------------------------------
Resolution: Fixed
> Pending app metrics are increased doubly when a queue reaches its
> max-parallel-apps limit
> -----------------------------------------------------------------------------------------
>
> Key: YARN-11185
> URL: https://issues.apache.org/jira/browse/YARN-11185
> Project: Hadoop YARN
> Issue Type: Bug
> Components: capacity scheduler
> Reporter: András Győri
> Assignee: András Győri
> Priority: Major
> Labels: pull-request-available
> Fix For: 3.4.0
>
> Time Spent: 50m
> Remaining Estimate: 0h
>
> When an application is submitted to a queue, its pending app metric is
> increased, even, if the application reached the queue's max-parallel-apps
> limit. If this application is allowed to run in the future because some other
> application is finished, the application is submitted to the queue again,
> increasing the pending app queue and user metrics again. Even if the
> application finishes, it can only decrease the pending metric by one, which
> makes the pending app metric monotonically increasing, whereas the ideal
> state should eventually be 0.
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