Benjamin Teke created YARN-10396:
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Summary: 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
Reporter: Benjamin Teke
Assignee: Benjamin Teke
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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