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From "Aaron T. Myers (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MAPREDUCE-2109) Add support for reading multiple hadoop delegation token files
Date Thu, 07 Oct 2010 21:57:31 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-2109?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12919077#action_12919077
] 

Aaron T. Myers commented on MAPREDUCE-2109:
-------------------------------------------

Hi Arun,

Several possible use cases are described in HADOOP-6988, but to summarize:

It's presently possible to fetch delegation tokens to files, and to pass these to bin/hadoop
when submitting a job. I'd like to be able to specify both MR and HDFS delegation token files
upfront so that job submission (eg done by Hue or Hive) doesn't require using kinit. This
change could also be useful to pass delegation token files obtained from multiple distinct
NNs.

> Add support for reading multiple hadoop delegation token files
> --------------------------------------------------------------
>
>                 Key: MAPREDUCE-2109
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2109
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: security
>    Affects Versions: 0.22.0
>            Reporter: Aaron T. Myers
>            Assignee: Aaron T. Myers
>         Attachments: mapreduce-2109.0.txt, mapreduce-2109.1.txt, mapreduce-2109.2.txt,
mapreduce-2109.3.txt
>
>
> This is the MR part of HADOOP-6988.

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