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https://issues.apache.org/jira/browse/MAPREDUCE-2506?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Owen O'Malley updated MAPREDUCE-2506:
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Attachment: mr-2506.patch
> Create a compatible interface for frameworks that need to clone MapReduce
> context objects.
> ------------------------------------------------------------------------------------------
>
> Key: MAPREDUCE-2506
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-2506
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Reporter: Owen O'Malley
> Attachments: mr-2506.patch
>
>
> In 0.21 we moved the org.apache.hadoop.mapreduce context objects to
> interfaces.
> That made the APIs much better, but broke backwards compatibility for
> frameworks that need to clone them.
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