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https://issues.apache.org/jira/browse/YARN-5392?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15386594#comment-15386594
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Arun Suresh commented on YARN-5392:
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Thanks for the taking a look [~leftnoteasy],
Agree that currently it is a wrapper for Priority, but the intention is for
this to be extensible.
For eg. in the case of YARN-4888, where we add the allocationRequestId, all we
need to do is to modify the SchedulerKey to include the allocationRequestId and
incorporate it in the compareTo/equals/hashcode method.
make sense ?
> 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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