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https://issues.apache.org/jira/browse/YARN-10795?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andras Gyori resolved YARN-10795.
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Resolution: Fixed
> Improve Capacity Scheduler reinitialisation performance
> -------------------------------------------------------
>
> Key: YARN-10795
> URL: https://issues.apache.org/jira/browse/YARN-10795
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: capacity scheduler
> Reporter: Andras Gyori
> Priority: Major
>
> Mostly due to CapacitySchedulerConfiguration#getPropsWithPrefix or similar
> methods, the CapacityScheduler#reinit method has some quadratic complexity
> part with respect to queue numbers. Over 1000+ queues, it is a matter of
> minutes, which is too high to be a viable option when it is used in mutation
> api.
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