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https://issues.apache.org/jira/browse/YARN-9930?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17124932#comment-17124932
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Peter Bacsko commented on YARN-9930:
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Attached POC v4 with a new unit tests which verifies the new functionality.
Still a POC because there are failing UTs.
TODO
* fix failing UTs (most likely mocking should be fine tuned)
* fix checkstyle
* more tests for the new feature (eg. user limit exceeded)
* check visibility of new methods
* add tests for CSMaxRunningAppsEnforcer (likely a copy-paste + edits from
TestMaxRunningAppsEnforcer)
> Support max running app logic for CapacityScheduler
> ---------------------------------------------------
>
> Key: YARN-9930
> URL: https://issues.apache.org/jira/browse/YARN-9930
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: capacity scheduler, capacityscheduler
> Affects Versions: 3.1.0, 3.1.1
> Reporter: zhoukang
> Assignee: zhoukang
> Priority: Major
> Attachments: YARN-9930-POC01.patch, YARN-9930-POC02.patch,
> YARN-9930-POC03.patch, YARN-9930-POC04.patch
>
>
> In FairScheduler, there has limitation for max running which will let
> application pending.
> But in CapacityScheduler there has no feature like max running app.Only got
> max app,and jobs will be rejected directly on client.
> This jira i want to implement this semantic for CapacityScheduler.
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