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https://issues.apache.org/jira/browse/YARN-617?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13650378#comment-13650378
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Vinod Kumar Vavilapalli commented on YARN-617:
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bq. Been reviewing YARN-582, so this will conflict with that patch, mainly the
ones in AMLauncher. Linking tickets..
Actually, looking back, none of the AMLauncher changes should even be there -
let's focus only on the containerToken stuff in this ticket.
> In unsercure mode, AM can fake resource requirements
> -----------------------------------------------------
>
> Key: YARN-617
> URL: https://issues.apache.org/jira/browse/YARN-617
> Project: Hadoop YARN
> Issue Type: Sub-task
> Reporter: Vinod Kumar Vavilapalli
> Assignee: Omkar Vinit Joshi
> Priority: Minor
> Attachments: YARN-617.20130501.1.patch, YARN-617.20130501.patch,
> YARN-617.20130502.patch
>
>
> Without security, it is impossible to completely avoid AMs faking resources.
> We can at the least make it as difficult as possible by using the same
> container tokens and the RM-NM shared key mechanism over unauthenticated
> RM-NM channel.
> In the minimum, this will avoid accidental bugs in AMs in unsecure mode.
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