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https://issues.apache.org/jira/browse/YARN-3092?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wangda Tan updated YARN-3092:
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Summary: Create common ResourceUsage class to track labeled resource usages
in Capacity Scheduler (was: Create common resource usage class to track
labeled resource/capacity in Capacity Scheduler)
> Create common ResourceUsage class to track labeled resource usages in
> Capacity Scheduler
> ----------------------------------------------------------------------------------------
>
> Key: YARN-3092
> URL: https://issues.apache.org/jira/browse/YARN-3092
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: api, client, resourcemanager
> Reporter: Wangda Tan
> Assignee: Wangda Tan
> Attachments: YARN-3092.1.patch, YARN-3092.2.patch
>
>
> Since we have labels on nodes, so we need to track resource usage *by
> labels*, includes
> - AM resource (to enforce max-am-resource-by-label after YARN-2637)
> - Used resource (includes AM resource usage)
> - Reserved resource
> - Pending resource
> - Headroom
> Benefits to have such a common class are:
> - Reuse lots of code in different places (Queue/App/User), better
> maintainability and readability.
> - Can make fine-grained locking (e.g. accessing used resource in a queue
> doesn't need lock a queue)
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