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https://issues.apache.org/jira/browse/MAPREDUCE-5663?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Siddharth Seth updated MAPREDUCE-5663:
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Status: Open (was: Patch Available)
> Add an interface to Input/Ouput Formats to obtain delegation tokens
> -------------------------------------------------------------------
>
> Key: MAPREDUCE-5663
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-5663
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Reporter: Siddharth Seth
> Assignee: Michael Weng
> Labels: BB2015-05-TBR
> Attachments: MAPREDUCE-5663.4.txt, MAPREDUCE-5663.5.txt,
> MAPREDUCE-5663.6.txt, MAPREDUCE-5663.patch.txt, MAPREDUCE-5663.patch.txt2,
> MAPREDUCE-5663.patch.txt3
>
>
> Currently, delegation tokens are obtained as part of the getSplits /
> checkOutputSpecs calls to the InputFormat / OutputFormat respectively.
> This works as long as the splits are generated on a node with kerberos
> credentials. For split generation elsewhere (AM for example), an explicit
> interface is required.
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