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Posted to dev@yunikorn.apache.org by "Wilfred Spiegelenburg (Jira)" <ji...@apache.org> on 2021/08/11 00:33:00 UTC

[jira] [Created] (YUNIKORN-790) Implement MaxApplications enforcement

Wilfred Spiegelenburg created YUNIKORN-790:
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             Summary: 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


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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