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Posted to mapreduce-dev@hadoop.apache.org by "Siddharth Seth (JIRA)" <ji...@apache.org> on 2013/12/03 01:08:35 UTC

[jira] [Created] (MAPREDUCE-5663) Add an interface to Input/Ouput Formats to obtain delegation tokens

Siddharth Seth created MAPREDUCE-5663:
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             Summary: 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: Siddharth Seth


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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