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https://issues.apache.org/jira/browse/YARN-4859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16206825#comment-16206825
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Yufei Gu commented on YARN-4859:
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[~asuresh], thanks for the explanation. I tested either drf and fair policy.
Both works. The trick is to set reservation-request vcores to zero for fair
policy queues. This is due to the reservation calculation is based on steady
fair share, whose vcores always be zero for fair policy queues. We could do
some improvement, like ignoring the vcores if the request is for fair policy
queues. Probably create another JIRA for this.
[~subru], I tested creating reservation and submitting a job with the
reservation id, it works without YARN-7311. We still need to fix the
"root.root" queue issue though. I'll post the patch later. Besides that,
YARN-7311 should be considered as a blocker as well. Could you spare time to
review it? Thanks.
> [Bug] Unable to submit a job to a reservation when using FairScheduler
> ----------------------------------------------------------------------
>
> Key: YARN-4859
> URL: https://issues.apache.org/jira/browse/YARN-4859
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: fairscheduler
> Reporter: Subru Krishnan
> Assignee: Yufei Gu
> Priority: Blocker
>
> Jobs submitted to a reservation get stuck at scheduled stage when using
> FairScheduler. I came across this when working on YARN-4827 (documentation
> for configuring ReservationSystem for FairScheduler)
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