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https://issues.apache.org/jira/browse/YARN-4212?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yufei Gu updated YARN-4212:
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Summary: FairScheduler: Parent queues is not allowed 'Fair' policy its
children have the "drf" policy (was: FairScheduler: Parent queues with 'Fair'
policy should compute shares of all resources for its children during a
recompute)
> FairScheduler: Parent queues is not allowed 'Fair' policy its children have
> the "drf" policy
> --------------------------------------------------------------------------------------------
>
> Key: YARN-4212
> URL: https://issues.apache.org/jira/browse/YARN-4212
> Project: Hadoop YARN
> Issue Type: Bug
> Reporter: Arun Suresh
> Assignee: Yufei Gu
> Labels: fairscheduler
> Attachments: YARN-4212.1.patch
>
>
> The Fair Scheduler, while performing a {{recomputeShares()}} during an
> {{update()}} call, uses the parent queues policy to distribute shares to its
> children.
> If the parent queues policy is 'fair', it only computes weight for memory and
> sets the vcores fair share of its children to 0.
> Assuming a situation where we have 1 parent queue with policy 'fair' and
> multiple leaf queues with policy 'drf', Any app submitted to the child queues
> with vcore requirement > 1 will always be above fairshare, since during the
> recomputeShare process, the child queues were all assigned 0 for fairshare
> vcores.
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