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https://issues.apache.org/jira/browse/YARN-6045?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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zhangshilong updated YARN-6045:
-------------------------------
Environment:
yarn: 2.7.1 release
jdk 1.7
kernel:2.6.32-431.20.3.el6
was:
jdk 1.7
kernel:2.6.32-431.20.3.el6
> apps/queues that have no pending containers will still affect the efficiency
> of scheduling
> ------------------------------------------------------------------------------------------
>
> Key: YARN-6045
> URL: https://issues.apache.org/jira/browse/YARN-6045
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: fairscheduler
> Affects Versions: 2.7.1
> Environment: yarn: 2.7.1 release
> jdk 1.7
> kernel:2.6.32-431.20.3.el6
> Reporter: zhangshilong
> Assignee: zhangshilong
>
> Sorting queues/apps consumes a significant amount of time during a single
> container allocation.
> Each time a container is assigned, all queues / apps are sorted by hierarchy.
> In practice, many queues / apps without pending container do not need to
> participate in the sort.
> Without the need for resources, apps / queues do not participate in sorting,
> scheduling performance will increase a lot.
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