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From "Devaraj Das (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HDFS-949) Move Delegation token into Common so that we can use it for MapReduce also
Date Tue, 09 Feb 2010 08:07:28 GMT

    [ https://issues.apache.org/jira/browse/HDFS-949?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12831345#action_12831345
] 

Devaraj Das commented on HDFS-949:
----------------------------------

+1 on the patch 

> Move Delegation token into Common so that we can use it for MapReduce also
> --------------------------------------------------------------------------
>
>                 Key: HDFS-949
>                 URL: https://issues.apache.org/jira/browse/HDFS-949
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: security
>            Reporter: Owen O'Malley
>            Assignee: Owen O'Malley
>         Attachments: h-949-common.patch, h-949-common.patch, h-949.patch, h-949.patch,
h-949.patch
>
>
> We need to support a MapReduce job that launches another MapReduce job inside its Mapper.
Since the task doesn't have any Kerberos tickets, we need a delegation token. Moving the HDFS
Delegation token to Common will allow both projects to use it.

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