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https://issues.apache.org/jira/browse/YARN-2009?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15583579#comment-15583579
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Eric Payne commented on YARN-2009:
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Thanks for the updated patch [~sunilg].
Should this feature work with labelled queues? I notice that it does not. I
think it is because the following code is getting the used capacity only for
the default partition:
{code:title=IntraQueueCandidatesSelector#computeIntraQueuePreemptionDemand}
if (leafQueue.getUsedCapacity() < context
.getMinimumThresholdForIntraQueuePreemption()) {
continue;
}
{code}
The above code has access to the partition, so it should be easy to get the
used capacity per partition. Perhaps something like the following:
{code:title=IntraQueueCandidatesSelector#computeIntraQueuePreemptionDemand}
if (leafQueue.getQueueCapacities().getUsedCapacity(partition) < context
.getMinimumThresholdForIntraQueuePreemption()) {
continue;
}
{code}
> Priority support for preemption in ProportionalCapacityPreemptionPolicy
> -----------------------------------------------------------------------
>
> Key: YARN-2009
> URL: https://issues.apache.org/jira/browse/YARN-2009
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: capacityscheduler
> Reporter: Devaraj K
> Assignee: Sunil G
> Attachments: YARN-2009.0001.patch, YARN-2009.0002.patch,
> YARN-2009.0003.patch, YARN-2009.0004.patch, YARN-2009.0005.patch,
> YARN-2009.0006.patch, YARN-2009.0007.patch, YARN-2009.0008.patch
>
>
> While preempting containers based on the queue ideal assignment, we may need
> to consider preempting the low priority application containers first.
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