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https://issues.apache.org/jira/browse/MAPREDUCE-3451?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13276203#comment-13276203
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Tom White commented on MAPREDUCE-3451:
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Matei - I'm not against this going in (although we should put it in a separate
module), but I thought it would be a good time to have a discussion about
supporting a single main scheduler in YARN. If we could combine features from
the various schedulers in MR1 to YARN then we would have less code to support
and test, and it would be less confusing for users. What do you think? Do you
agree that this would be a useful goal?
> Port Fair Scheduler to MR2
> --------------------------
>
> Key: MAPREDUCE-3451
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-3451
> Project: Hadoop Map/Reduce
> Issue Type: New Feature
> Components: mrv2, scheduler
> Reporter: Patrick Wendell
> Assignee: Patrick Wendell
> Attachments: MAPREDUCE-3451.v1.patch.txt,
> MAPREDUCE-3451.v2.patch.txt, MAPREDUCE-3451.v3.patch.txt,
> MAPREDUCE-3451.v4.patch.txt, MAPREDUCE-3451.v5.patch
>
>
> The Fair Scheduler is in widespread use today in MR1 clusters, but not yet
> ported to MR2. This is to track the porting of the Fair Scheduler to MR2 and
> will be updated to include design considerations and progress.
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