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https://issues.apache.org/jira/browse/HADOOP-4490?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Amar Kamat updated HADOOP-4490:
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Attachment: 2701949.4490.9.patch
Attaching an example patch for branch 20 not to be committed.
> Map and Reduce tasks should run as the user who submitted the job
> -----------------------------------------------------------------
>
> Key: HADOOP-4490
> URL: https://issues.apache.org/jira/browse/HADOOP-4490
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: security
> Reporter: Arun C Murthy
> Assignee: Hemanth Yamijala
> Fix For: 0.21.0
>
> Attachments: 2701949.4490.9.patch, cluster_setup.pdf,
> cluster_setup.pdf, HADOOP-4490-1.patch, HADOOP-4490-1.patch,
> hadoop-4490-10.patch, hadoop-4490-11.patch, hadoop-4490-12.patch,
> hadoop-4490-13.patch, hadoop-4490-14.patch, HADOOP-4490-2.patch,
> HADOOP-4490-3.patch, hadoop-4490-4.patch, hadoop-4490-5.patch,
> hadoop-4490-6.patch, hadoop-4490-7.patch, hadoop-4490-8.patch,
> hadoop-4490-9.patch, hadoop-4490-br20-3.2.patch, hadoop-4490-br20-3.patch,
> hadoop-4490-design.pdf, HADOOP-4490.patch, HADOOP-4490.patch,
> HADOOP-4490.patch, HADOOP-4490.patch, HADOOP-4490.patch, HADOOP-4490.patch,
> HADOOP-4490.patch, HADOOP-4490_streaming.patch
>
>
> Currently the TaskTracker spawns the map/reduce tasks, resulting in them
> running as the user who started the TaskTracker.
> For security and accounting purposes the tasks should be run as the job-owner.
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