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https://issues.apache.org/jira/browse/YARN-10396?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Benjamin Teke reopened YARN-10396:
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> Max applications calculation per queue disregards queue level settings in
> absolute mode
> ---------------------------------------------------------------------------------------
>
> Key: YARN-10396
> URL: https://issues.apache.org/jira/browse/YARN-10396
> Project: Hadoop YARN
> Issue Type: Bug
> Components: capacity scheduler
> Reporter: Benjamin Teke
> Assignee: Benjamin Teke
> Priority: Major
> Fix For: 3.4.0, 3.3.1
>
> Attachments: YARN-10396.001.patch, YARN-10396.002.patch,
> YARN-10396.003.patch, YARN-10396.branch-3.1.001.patch,
> YARN-10396.branch-3.2.001.patch
>
>
> Looking at the following code in
> {{org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.ParentQueue.java#L1126}}
> {code:java}
> int maxApplications = (int) (conf.getMaximumSystemApplications()
> * childQueue.getQueueCapacities().getAbsoluteCapacity(label));
> leafQueue.setMaxApplications(maxApplications);{code}
> In Absolute Resources mode setting the number of maximum applications on
> queue level gets overridden with the system level setting scaled down to the
> available resources. This means that the only way to set the maximum number
> of applications is to change the queue's resource pool. This line should
> consider the queue's
> {{yarn.scheduler.capacity.\{queuepath}.maximum-applications }}setting.
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