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https://issues.apache.org/jira/browse/YARN-2693?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sunil G updated YARN-2693:
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    Attachment: 0004-YARN-2693.patch

Updating by covering few more test scenarios.

> Priority Label Manager in RM to manage priority labels
> ------------------------------------------------------
>
>                 Key: YARN-2693
>                 URL: https://issues.apache.org/jira/browse/YARN-2693
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: resourcemanager
>            Reporter: Sunil G
>            Assignee: Sunil G
>         Attachments: 0001-YARN-2693.patch, 0002-YARN-2693.patch, 
> 0003-YARN-2693.patch, 0004-YARN-2693.patch
>
>
> Focus of this JIRA is to have a centralized service to handle priority labels.
> Support operations such as
> * Add/Delete priority label to a specified queue
> * Manage integer mapping associated with each priority label
> * Support managing default priority label of a given queue
> * ACL support in queue level for priority label
> * Expose interface to RM to validate priority label
> Storage for this labels will be done in FileSystem and in Memory similar to 
> NodeLabel
> * FileSystem Based : persistent across RM restart
> * Memory Based: non-persistent across RM restart



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