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From "Owen O'Malley (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-2858) MRv2 WebApp Security
Date Fri, 14 Oct 2011 16:06:12 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-2858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13127651#comment-13127651
] 

Owen O'Malley commented on MAPREDUCE-2858:
------------------------------------------

I like the idea of using a proxy that handles all of the communication. The AM should mostly
use relative URLS, but also be given its "root url" by the RM, which will allow it to generate
absolute urls for the pages it generates. The AM should never generate any URLS that point
to its real address since they will be rejected.
                
> MRv2 WebApp Security
> --------------------
>
>                 Key: MAPREDUCE-2858
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2858
>             Project: Hadoop Map/Reduce
>          Issue Type: Sub-task
>          Components: applicationmaster, mrv2, security
>    Affects Versions: 0.23.0
>            Reporter: Luke Lu
>            Assignee: Luke Lu
>            Priority: Blocker
>             Fix For: 0.23.0
>
>
> In MRv2, while the system servers (ResourceManager (RM), NodeManager (NM) and NameNode
(NN)) run as "trusted"
> system users, the application masters (AM) run as users who submit the application. While
this offers great flexibility
> to run multiple version of mapreduce frameworks (including their UI) on the same Hadoop
cluster, it has significant
> implication for the security of webapps (Please do not discuss company specific vulnerabilities
here).
> Requirements:
> # Secure authentication for AM (for app/job level ACLs).
> # Webapp security should be optional via site configuration.
> # Support existing pluggable single sign on mechanisms.
> # Should not require per app/user configuration for deployment.
> # Should not require special site-wide DNS configuration for deployment.
> This the top jira for webapp security. A design doc/notes of threat-modeling and counter
measures will be posted on the wiki.

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