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https://issues.apache.org/jira/browse/YARN-7619?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16313197#comment-16313197
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Eric Payne commented on YARN-7619:
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Thanks very much [~sunilg].
> Max AM Resource value in Capacity Scheduler UI has to be refreshed for every
> user
> ---------------------------------------------------------------------------------
>
> Key: YARN-7619
> URL: https://issues.apache.org/jira/browse/YARN-7619
> Project: Hadoop YARN
> Issue Type: Bug
> Components: capacity scheduler, yarn
> Affects Versions: 2.9.0, 3.0.0-beta1, 2.8.2, 3.1.0
> Reporter: Eric Payne
> Assignee: Eric Payne
> Fix For: 3.1.0, 2.10.0, 2.9.1, 3.0.1, 2.8.4
>
> Attachments: Max AM Resources is Different for Each User.png,
> YARN-7619.001.patch, YARN-7619.002.patch, YARN-7619.003.patch,
> YARN-7619.004.branch-2.8.patch, YARN-7619.004.branch-3.0.patch,
> YARN-7619.004.patch, YARN-7619.005.branch-2.8.patch,
> YARN-7619.005.branch-3.0.patch, YARN-7619.005.patch
>
>
> YARN-7245 addressed the problem that the {{Max AM Resource}} in the capacity
> scheduler UI used to contain the queue-level AM limit instead of the
> user-level AM limit. It fixed this by using the user-specific AM limit that
> is calculated in {{LeafQueue#activateApplications}}, stored in each user's
> {{LeafQueue#User}} object, and retrieved via
> {{UserInfo#getResourceUsageInfo}}.
> The problem is that this user-specific AM limit depends on the activity of
> other users and other applications in a queue, and it is only calculated and
> updated when a user's application is activated. So, when
> {{CapacitySchedulerPage}} retrieves the user-specific AM limit, it is a stale
> value unless an application was recently activated for a particular user.
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