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https://issues.apache.org/jira/browse/YARN-8505?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16539495#comment-16539495
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Tao Yang commented on YARN-8505:
--------------------------------

{quote}
Above properties are for total application in queue, not running application 
IIUC
{quote}
There is a validation which is to make sure 
(numPendingApps+numActiveApps<=min(maxApplications, maxApplicationsPerUser) ) 
in LeafQueue#validateSubmitApplication, the submission of unmanaged App will be 
rejected if reached the limit. That is the limitation which I mean for 
unmanaged AM. 

> AMLimit and userAMLimit check should be skipped for unmanaged AM
> ----------------------------------------------------------------
>
>                 Key: YARN-8505
>                 URL: https://issues.apache.org/jira/browse/YARN-8505
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: capacityscheduler
>    Affects Versions: 3.2.0, 2.9.2
>            Reporter: Tao Yang
>            Assignee: Tao Yang
>            Priority: Major
>         Attachments: YARN-8505.001.patch
>
>
> AMLimit and userAMLimit check in LeafQueue#activateApplications should be 
> skipped for unmanaged AM whose resource is not taken from YARN cluster.



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