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From "Sunil G (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-7520) Queue Ordering policy changes for ordering auto created leaf queues within Managed parent Queues
Date Fri, 01 Dec 2017 11:42:00 GMT

    [ https://issues.apache.org/jira/browse/YARN-7520?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16274291#comment-16274291
] 

Sunil G commented on YARN-7520:
-------------------------------

In {{PriorityUtilizationQueueOrderingPolicy#compare}}, we have an else condition as follows.
{code}
else {
       return 0;
}
{code}
This will happen when q1AbsCapacity  = 0 && q2AbsCapacity = 0. I think when capacity
is 0, but max capacity is configured, some of this queue might  using some capacity. so we
have to compare with used capacity here

> Queue Ordering policy changes for ordering auto created leaf queues within Managed parent
Queues
> ------------------------------------------------------------------------------------------------
>
>                 Key: YARN-7520
>                 URL: https://issues.apache.org/jira/browse/YARN-7520
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: capacity scheduler
>            Reporter: Suma Shivaprasad
>            Assignee: Suma Shivaprasad
>         Attachments: YARN-7520.1.patch, YARN-7520.2.patch
>
>
> Queue Ordering policy currently uses priority, utilization and absolute capacity for
pre-configured parent queues to order leaf queues while assigning containers. It needs modifications
for auto created leaf queues since they can have zero capacity



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