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https://issues.apache.org/jira/browse/YARN-326?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13644208#comment-13644208
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Andrew Ferguson commented on YARN-326:
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[~sandyr] bingo. that was exactly the concern I alluded to before. glad we
found it while thinking about the design. :-)
[~kkambatl] yup, that's the idea -- fractional min-share, which would be
interpreted as a fraction of the dominant resource (which wouldn't be
pre-specified, so the queue's dominant resource could adapt based on the jobs
submitted) ... I wrote my example a bit quickly, sorry! let me know if
something's still not clear.
the new plan sounds like a good approach. I like it.
> Add multi-resource scheduling to the fair scheduler
> ---------------------------------------------------
>
> Key: YARN-326
> URL: https://issues.apache.org/jira/browse/YARN-326
> Project: Hadoop YARN
> Issue Type: New Feature
> Components: scheduler
> Affects Versions: 2.0.2-alpha
> Reporter: Sandy Ryza
> Assignee: Sandy Ryza
> Attachments: FairSchedulerDRFDesignDoc.pdf, YARN-326.patch,
> YARN-326.patch
>
>
> With YARN-2 in, the capacity scheduler has the ability to schedule based on
> multiple resources, using dominant resource fairness. The fair scheduler
> should be able to do multiple resource scheduling as well, also using
> dominant resource fairness.
> More details to come on how the corner cases with fair scheduler configs such
> as min and max resources will be handled.
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