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From "Sunil G (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-1963) Support priorities across applications within the same queue
Date Wed, 11 Mar 2015 17:26:40 GMT

    [ https://issues.apache.org/jira/browse/YARN-1963?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14357241#comment-14357241
] 

Sunil G commented on YARN-1963:
-------------------------------

Thank you [~vinodkv] and [~nroberts] for the comments.

Considering usability ways, labels will be handy. And scheduler must be agnostic of labels
and should handle only integers like in linux. This will have a complexity on priority manager
inside RM which will translate label -> integer an vice versa. But a call can be taken
by seeing all possibilities and can be standardized the same so that a minimal working version
can be pushed in by improvising on the patches submitted (working prototype was attached).
Hoping [~leftnoteasy] and [~eepayne] to join the discussion.

> Support priorities across applications within the same queue 
> -------------------------------------------------------------
>
>                 Key: YARN-1963
>                 URL: https://issues.apache.org/jira/browse/YARN-1963
>             Project: Hadoop YARN
>          Issue Type: New Feature
>          Components: api, resourcemanager
>            Reporter: Arun C Murthy
>            Assignee: Sunil G
>         Attachments: 0001-YARN-1963-prototype.patch, YARN Application Priorities Design.pdf,
YARN Application Priorities Design_01.pdf
>
>
> It will be very useful to support priorities among applications within the same queue,
particularly in production scenarios. It allows for finer-grained controls without having
to force admins to create a multitude of queues, plus allows existing applications to continue
using existing queues which are usually part of institutional memory.



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