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Date: Mon, 16 Nov 2009 20:06:39 +0000 (UTC)
From: "Devaraj Das (JIRA)" <jira@apache.org>
To: mapreduce-issues@hadoop.apache.org
Subject: [jira] Commented: (MAPREDUCE-915) For secure environments, the
 Map/Reduce debug script must be run as the user.
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    [ https://issues.apache.org/jira/browse/MAPREDUCE-915?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12778497#action_12778497 ] 

Devaraj Das commented on MAPREDUCE-915:
---------------------------------------

Oops sorry. I forgot to add the Test* files before i created the last patch. 
I can log the command lines that is written to taskjvm.sh. For the purpose of debugging, that seems to make more sense than relying on the taskjvm.sh's contents.. I will upload a patch soon.

> For secure environments, the Map/Reduce debug script must be run as the user.
> -----------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-915
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-915
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: security, tasktracker
>    Affects Versions: 0.21.0
>            Reporter: Hemanth Yamijala
>            Assignee: Devaraj Das
>            Priority: Blocker
>             Fix For: 0.21.0
>
>         Attachments: 915-4.patch, 915.1.patch, 915.2.patch, 915.patch
>
>
> The Taskcontroller model allows admins to set up a cluster configuration that runs tasks as users. The debug script feature of Map/Reduce provided by the configuration options: mapred.map.task.debug.script and mapred.reduce.task.debug.script need to be run as the user as well in such environments, rather than as the tasktracker user.

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