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From "Ravi Gummadi (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MAPREDUCE-1455) Authorization for servlets
Date Wed, 10 Feb 2010 05:44:28 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-1455?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12831880#action_12831880
] 

Ravi Gummadi commented on MAPREDUCE-1455:
-----------------------------------------

We will get authenticated user using HttpServletRequest.getRemoteUser().
I am proposing to run the methods that access the job as the user(using UserGroupInformation.doAs())
from JSPs and servlets sothat methods of JobTracker can just do authorization(by checking
the UserGroupInformation.getCurrentUser()).
This avoids many changes in MAPREDUCE-1307 and also avoids adding new methods that take UGI
as parameter in jobtracker.

Thoughts ?

> Authorization for servlets
> --------------------------
>
>                 Key: MAPREDUCE-1455
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1455
>             Project: Hadoop Map/Reduce
>          Issue Type: Sub-task
>            Reporter: Devaraj Das
>            Assignee: Ravi Gummadi
>             Fix For: 0.22.0
>
>
> This jira is about building the authorization for servlets (on top of MAPREDUCE-1307).
That is, the JobTracker/TaskTracker runs authorization checks on web requests based on the
configured job permissions. For e.g., if the job permission is 600, then no one except the
authenticated user can look at the job details via the browser. The authenticated user in
the servlet can be obtained using the HttpServletRequest method.

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