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https://issues.apache.org/jira/browse/MAPREDUCE-4257?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tom White resolved MAPREDUCE-4257.
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Resolution: Invalid
Yes, I don't think we need this.
> Support fair-sharing option within a MR2 Capacity Scheduler queue
> -----------------------------------------------------------------
>
> Key: MAPREDUCE-4257
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4257
> Project: Hadoop Map/Reduce
> Issue Type: New Feature
> Components: capacity-sched, mrv2
> Reporter: Tom White
> Assignee: Karthik Kambatla
>
> The fair scheduler can run jobs in a single pool (queue) in FIFO or fair
> share mode. In FIFO mode one job runs at a time, in priority order, while in
> fair share mode multiple jobs can run at the same time, and they share the
> capacity of the pool. This JIRA is to add the latter feature to Capacity
> Scheduler as an option - the default would remain FIFO.
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