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https://issues.apache.org/jira/browse/YARN-2395?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wei Yan reassigned YARN-2395:
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Assignee: Wei Yan
> Fair Scheduler : implement fair share preemption at parent queue based on
> fairSharePreemptionTimeout
> ----------------------------------------------------------------------------------------------------
>
> Key: YARN-2395
> URL: https://issues.apache.org/jira/browse/YARN-2395
> Project: Hadoop YARN
> Issue Type: New Feature
> Components: fairscheduler
> Reporter: Ashwin Shankar
> Assignee: Wei Yan
>
> Currently in fair scheduler, the preemption logic considers fair share
> starvation only at leaf queue level. This jira is created to implement it at
> the parent queue as well.
> It involves :
> 1. Making "check for fair share starvation" and "amount of resource to
> preempt" recursive such that they traverse the queue hierarchy from root to
> leaf.
> 2. Currently fairSharePreemptionTimeout is a global config. We could make it
> configurable on a per queue basis,so that we can specify different timeouts
> for parent queues.
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