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From "Jonathan Hung (Jira)" <j...@apache.org>
Subject [jira] [Commented] (YARN-9760) Support configuring application priorities on a workflow level
Date Thu, 22 Aug 2019 19:16:00 GMT

    [ https://issues.apache.org/jira/browse/YARN-9760?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16913621#comment-16913621
] 

Jonathan Hung commented on YARN-9760:
-------------------------------------

Hi [~eepayne], thanks for the comments. I understand the concern. The reason we implemented
it this way was b/c we wanted queue admins to be able to set workflow priorities themselves
(i.e. leveraging YARN queue ACLs) which would be difficult to do client-side.

IMO there's not too much complexity for this feature on the RM side. But to minimize overall
complexity, perhaps we can do this in a way that doesn't make protocol changes, and on the
RM side we can leverage the queue mapping interface. Would this address your concerns? [~varun_saxena]
how does this sound?

> Support configuring application priorities on a workflow level
> --------------------------------------------------------------
>
>                 Key: YARN-9760
>                 URL: https://issues.apache.org/jira/browse/YARN-9760
>             Project: Hadoop YARN
>          Issue Type: New Feature
>            Reporter: Jonathan Hung
>            Assignee: Varun Saxena
>            Priority: Major
>              Labels: release-blocker
>
> Currently priorities are submitted on an application level, but for end users it's common
to submit workloads to YARN at a workflow level. This jira proposes a feature to store workflow
id + priority mappings on RM (similar to queue mappings). If app is submitted with a certain
workflow id (as set in application submission context) RM will override this app's priority
with the one defined in the mapping.



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