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https://issues.apache.org/jira/browse/MAPREDUCE-3451?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13159845#comment-13159845
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Mahadev konar commented on MAPREDUCE-3451:
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Patrick,
I'd say it could do both. If you look at the Capacity Scheduler, it does
inter application scheduling (deciding on which application gets a resource)
and then also decides which priority request within the application should be
satisfied first (in CS its the highest first).
Take a look at
{code}
LeafQueue.assignContainers()
ParentQueue.assignContainers()
{code}
As for the user information, its is available in the SchedulerApp.getUser().
Also, a single AM amounts to a single job currently, I am not sure what you
mean by "jobs requested for a single AM".
Hope that helps.
> 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: scheduler
> Reporter: Patrick Wendell
> Assignee: Patrick Wendell
>
> 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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