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https://issues.apache.org/jira/browse/MAPREDUCE-4299?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tom White updated MAPREDUCE-4299:
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Assignee: Tom White
Status: Patch Available (was: Open)
> Terasort hangs with MR2 FifoScheduler
> -------------------------------------
>
> Key: MAPREDUCE-4299
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4299
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: mrv2
> Affects Versions: 2.0.0-alpha
> Reporter: Tom White
> Assignee: Tom White
> Attachments: MAPREDUCE-4299.patch
>
>
> What happens is that the number of reducers ramp up until they occupy all of
> the job's containers, at which point the maps no longer make any progress and
> the job hangs.
> When the same job is run with the CapacityScheduler it succeeds, so this
> looks like a FifoScheduler bug.
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