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https://issues.apache.org/jira/browse/YARN-2496?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14136878#comment-14136878
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Wangda Tan commented on YARN-2496:
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Hi [~cwelch],
I'm not sure quite understand about this, did you mean we need calculate
consumed resource for each label (or label-expression) under each queue? Could
you give me an example about how to avoid job starvation with it?
It confuse me that, if we have resource per label/l-expression, should we have
resource per host/rack (we can ask for resource only on a host/rack by
specifying relax-locality).
Thanks,
Wangda
> [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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