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https://issues.apache.org/jira/browse/YARN-1471?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13841541#comment-13841541
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Carlo Curino commented on YARN-1471:
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Wei, I posted a patch that implements the change we discussed with Alejandro.
Most of it is rather trivial, with one ugly exception. The subclassing of
CapacityScheduler is basically a 1:1 copy of your ResourceSchedulerWrapper
(changed to be a subclass instead of a wrapper). I don't have in mind a good
alternative and I need to move foward with this somewhat quickly, if you have a
better idea feel free to evolve our patch (or have a separate JIRA to prettify
this).
More importantly I tested it with both CapacityScheduler and FairScheduler and
seems to work as intended, but I have limited understanding of all the metrics
you collect and the functionalities of the simulator, as I just started using
it, if you have a chance it would be great for you to test this more carefully.
Thanks!
> The SLS simulator is not running the preemption policy for CapacityScheduler
> ----------------------------------------------------------------------------
>
> Key: YARN-1471
> URL: https://issues.apache.org/jira/browse/YARN-1471
> Project: Hadoop YARN
> Issue Type: Bug
> Reporter: Carlo Curino
> Assignee: Carlo Curino
> Priority: Minor
>
> The simulator does not run the ProportionalCapacityPreemptionPolicy monitor.
> This is because the policy needs to interact with a CapacityScheduler, and
> the wrapping done by the simulator breaks this.
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