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From "Yufei Gu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-4859) [Bug] Unable to submit a job to a reservation when using FairScheduler
Date Tue, 17 Oct 2017 00:25:00 GMT

    [ https://issues.apache.org/jira/browse/YARN-4859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16206825#comment-16206825
] 

Yufei Gu commented on YARN-4859:
--------------------------------

[~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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