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From "Devaraj Das (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MAPREDUCE-181) Secure job submission
Date Mon, 07 Sep 2009 12:25:57 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-181?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12752117#action_12752117
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Devaraj Das commented on MAPREDUCE-181:
---------------------------------------

For now, let's keep it simple - don't implement the points to do with maintaining/cleaning-up
jobID->userName mappings. This should be looked at, in a bigger picture, once we have the
authentication implemented. Also, rather than time-based expiry I think it would be better
to have limits on number of queued jobs per user and the max queued jobs overall.

> Secure job submission 
> ----------------------
>
>                 Key: MAPREDUCE-181
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-181
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>            Reporter: Amar Kamat
>            Assignee: Amar Kamat
>         Attachments: hadoop-3578-branch-20-example-2.patch, hadoop-3578-branch-20-example.patch,
HADOOP-3578-v2.6.patch, HADOOP-3578-v2.7.patch, MAPRED-181-v3.8.patch
>
>
> Currently the jobclient accesses the {{mapred.system.dir}} to add job details. Hence
the {{mapred.system.dir}} has the permissions of {{rwx-wx-wx}}. This could be a security loophole
where the job files might get overwritten/tampered after the job submission. 

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