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From "Eric Payne (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (YARN-6917) Queue path is recomputed from scratch on every allocation
Date Thu, 03 Aug 2017 16:26:00 GMT

     [ https://issues.apache.org/jira/browse/YARN-6917?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Eric Payne reassigned YARN-6917:

    Assignee: Eric Payne

> Queue path is recomputed from scratch on every allocation
> ---------------------------------------------------------
>                 Key: YARN-6917
>                 URL: https://issues.apache.org/jira/browse/YARN-6917
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: capacityscheduler
>    Affects Versions: 2.8.1
>            Reporter: Jason Lowe
>            Assignee: Eric Payne
>            Priority: Minor
> As part of the discussion in YARN-6901 I noticed that we are recomputing a queue's path
for every allocation.  Currently getting the queue's path involves calling getQueuePath on
the parent then building onto that string with the basename of the queue.  In turn the parent's
getQueuePath method does the same, so we end up spending time recomputing a string that will
never change until a reconfiguration.
> Ideally the queue path should be computed once during queue initialization rather than

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