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https://issues.apache.org/jira/browse/YARN-9887?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16949690#comment-16949690
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Eric Payne commented on YARN-9887:
----------------------------------

The Capacity Scheduler does have a concept of {color:#222222}Max Applications 
Per User{color} (per queue). While it is not directly configurable, it is based 
on the following:

(int)(maxApplications * (userLimit / 100.0f) * userLimitFactor)

Each of the above are configurable per queue.

> Capacity scheduler: add support for limiting maxRunningApps per user
> --------------------------------------------------------------------
>
>                 Key: YARN-9887
>                 URL: https://issues.apache.org/jira/browse/YARN-9887
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: capacity scheduler
>            Reporter: Peter Bacsko
>            Priority: Major
>
> Fair Scheduler supports limiting the number of applications that a particular 
> user can submit:
> {noformat}
> <user name="someuser">
>   <maxRunningApps>10</maxRunningApps>
> </user>
> {noformat}
> Capacity Scheduler does not have an exact equivalent.



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