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https://issues.apache.org/jira/browse/YARN-7457?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16291289#comment-16291289
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Sunil G commented on YARN-7457:
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Yes [~leftnoteasy]. In my YARN-7494 , I am already refactoring
AppPlacementAllocator to pick from a factory and use a StringStringMap on ASC
for scheduling env's alone.
> Delay scheduling should be an individual policy instead of part of scheduler
> implementation
> -------------------------------------------------------------------------------------------
>
> Key: YARN-7457
> URL: https://issues.apache.org/jira/browse/YARN-7457
> Project: Hadoop YARN
> Issue Type: Sub-task
> Reporter: Wangda Tan
> Assignee: Tao Yang
>
> Currently, different schedulers have slightly different delay scheduling
> implementations. Ideally we should make delay scheduling independent from
> scheduler implementation. Benefits of doing this:
> 1) Applications can choose which delay scheduling policy to use, it could be
> time-based / missed-opportunistic-based or whatever new delay scheduling
> policy supported by the cluster. Now it is global config of scheduler.
> 2) Make scheduler implementations simpler and reusable.
> h2. {color:red}Running design doc:
> https://docs.google.com/document/d/1rY-CJPLbGk3Xj_8sxre61y2YkHJFK8oqKOshro1ZY3A/edit#heading=h.xnzvh9nn283a{color}
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