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https://issues.apache.org/jira/browse/YUNIKORN-790?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17504811#comment-17504811
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Wilfred Spiegelenburg commented on YUNIKORN-790:
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The answer is yes in both cases:
* maxRunningApps of a child must be equal or smaller than the parent
* the current running apps is enforced at all levels, 3 + 7 = 10 and thus
root.users can not start a new app
> Implement MaxApplications enforcement
> -------------------------------------
>
> Key: YUNIKORN-790
> URL: https://issues.apache.org/jira/browse/YUNIKORN-790
> Project: Apache YuniKorn
> Issue Type: New Feature
> Components: core - scheduler
> Reporter: Wilfred Spiegelenburg
> Assignee: Chung En Lee
> Priority: Major
> Labels: pull-request-available
>
> Queues have an option to set the MaxApplications that can run in a queue.
> There is currently no code in the scheduler that checks this setting.
> As a new feature we should add the enforcement for this setting:
> * enforce the setting on a leaf queue
> * enforce the setting on a parent, the apps running in a parent queue is
> defined as the sum of all the apps running in all leaf queues of the parent.
> As a side note from a config check: we need to make sure that the parent
> setting cannot be lower than any of the child queues it has. We _must not_
> enforce that the parent setting must be larger than sum of all leafs.
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