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https://issues.apache.org/jira/browse/YARN-7619?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16292877#comment-16292877
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Sunil G commented on YARN-7619:
-------------------------------
Thanks [~eepayne].
Few more minor comments
# In LQ,
{code}
userAMLimit = Resources.lessThanOrEqual(resourceCalculator, lastClusterResource,
userAMLimit, getAMResourceLimitPerPartition(nodePartition)) ?
userAMLimit : getAMResourceLimitPerPartition(nodePartition);
{code}
I think we can use Resources.min here also.
# I think its an existing bug. In above code,
{{getAMResourceLimitPerPartition(nodePartition)}} is returning stored Resource
object (not clone). And this *userAMLimit* is later set to
{{user.getResourceUsage()}} etc. Its better to use Resources.clone on this
object, correct?
> Max AM Resource value in CS UI is different 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
> 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-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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