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https://issues.apache.org/jira/browse/YARN-1963?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14507501#comment-14507501
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Sunil G commented on YARN-1963:
-------------------------------

Thank you [~grey] for sharing the thoughts.
As per the design, integer will be used in schedulers all alone. Hence all 
comparisons and operations can be done on integer. However we can have a label 
mapping for the integer which can be used while application submission, and to 
view in UI etc. Labels can be added as only a mappings to integer.

 


> 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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