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https://issues.apache.org/jira/browse/YARN-2496?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14141355#comment-14141355
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Craig Welch commented on YARN-2496:
-----------------------------------
I'm also concerned about this:
Resource maxCapacityConsiderLabel =
labelManager == null ? clusterResource : labelManager.getQueueResource(
queueName, labels, clusterResource);
The "labels" are the labels for the queue, but the resource requests coming
from the application can be a subset of that, no? So if application "a" is
running on a queue with lables a and b, but it has a label expression of only
a, which it is using for resource requests, it's going to get a headroom based
on nodes with both labels a and b, but in fact it only has a "real" headroom
for nodes with label "a"
> [YARN-796] Changes for capacity scheduler to support allocate resource
> respect labels
> -------------------------------------------------------------------------------------
>
> Key: YARN-2496
> URL: https://issues.apache.org/jira/browse/YARN-2496
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: resourcemanager
> Reporter: Wangda Tan
> Assignee: Wangda Tan
> Attachments: YARN-2496.patch, YARN-2496.patch, YARN-2496.patch,
> YARN-2496.patch
>
>
> This JIRA Includes:
> - Add/parse labels option to {{capacity-scheduler.xml}} similar to other
> options of queue like capacity/maximum-capacity, etc.
> - Include a "default-label-expression" option in queue config, if an app
> doesn't specify label-expression, "default-label-expression" of queue will be
> used.
> - Check if labels can be accessed by the queue when submit an app with
> labels-expression to queue or update ResourceRequest with label-expression
> - Check labels on NM when trying to allocate ResourceRequest on the NM with
> label-expression
> - Respect labels when calculate headroom/user-limit
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