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https://issues.apache.org/jira/browse/YARN-3216?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14954269#comment-14954269
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Sunil G commented on YARN-3216:
-------------------------------

Hi [~leftnoteasy]
Thank you for sharing the comments.

bq.why computing max of queue's max resource and configured resource?
I have one scenario here. When a queue capacity is 0.1 and max capacity is 1.0, 
it can use complete resources in cluster. So if all nodes are with NO_LABEL, we 
can take all nodes of applications running in this queue (best case scenario).

So max-capacity will be helpful here, and as I see it {{getAMResourceLimit()}} 
is having this also considered.
{code}
    synchronized (queueResourceLimitsInfo) {
      queueCurrentLimit = queueResourceLimitsInfo.getQueueCurrentLimit();
    }
    Resource queueCap = Resources.max(resourceCalculator, lastClusterResource,
        absoluteCapacityResource, queueCurrentLimit);
{code}
Am I missing something, please correct me if I am wrong.

bq.getUserAMResourceLimit should consider partition as well
As suggested in an earlier comment, I created a JIRA to track 
user-am-resource-limit per-partition separately. YARN-4229. I will link the 
issue here.

I will address all the other comments in next patch.

> Max-AM-Resource-Percentage should respect node labels
> -----------------------------------------------------
>
>                 Key: YARN-3216
>                 URL: https://issues.apache.org/jira/browse/YARN-3216
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: resourcemanager
>            Reporter: Wangda Tan
>            Assignee: Sunil G
>            Priority: Critical
>         Attachments: 0001-YARN-3216.patch, 0002-YARN-3216.patch, 
> 0003-YARN-3216.patch, 0004-YARN-3216.patch, 0005-YARN-3216.patch, 
> 0006-YARN-3216.patch
>
>
> Currently, max-am-resource-percentage considers default_partition only. When 
> a queue can access multiple partitions, we should be able to compute 
> max-am-resource-percentage based on that.



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