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Posted to yarn-issues@hadoop.apache.org by "Benjamin Teke (Jira)" <ji...@apache.org> on 2020/08/26 11:37:00 UTC
[jira] [Reopened] (YARN-10396) Max applications calculation per
queue disregards queue level settings in absolute mode
[ https://issues.apache.org/jira/browse/YARN-10396?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
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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