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From "Wangda Tan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-5392) Replace use of Priority in the Scheduling infrastructure with an opaque ShedulerKey
Date Wed, 20 Jul 2016 22:31:20 GMT

    [ https://issues.apache.org/jira/browse/YARN-5392?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15386738#comment-15386738
] 

Wangda Tan commented on YARN-5392:
----------------------------------

[~asuresh], as we discussed offline with [~subru], sorting application may not use the same
data structure of SchedulerKey, for example, it won't have AllocationRequestId and we need
to look at usedResource, etc. So I think it's better to keep these changes for resource request
sorting.

> Replace use of Priority in the Scheduling infrastructure with an opaque ShedulerKey
> -----------------------------------------------------------------------------------
>
>                 Key: YARN-5392
>                 URL: https://issues.apache.org/jira/browse/YARN-5392
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>            Reporter: Arun Suresh
>            Assignee: Arun Suresh
>         Attachments: YARN-5392.001.patch, YARN-5392.002.patch, YARN-5392.003.patch, YARN-5392.004.patch
>
>
> Based on discussions in YARN-4888, this jira proposes to replace the use of {{Priority}}
in the Scheduler infrastructure (Scheduler, Queues, SchedulerApp / Node etc.) with a more
opaque and extensible {{SchedulerKey}}.
> Note: Even though {{SchedulerKey}} will be used by the internal scheduling infrastructure,
It will not be exposed to the Client or the AM. The SchdulerKey is meant to be an internal
construct that is derived from attributes of the ResourceRequest / ApplicationSubmissionContext
/ Scheduler Configuration etc.



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