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https://issues.apache.org/jira/browse/MAPREDUCE-3256?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Vinod Kumar Vavilapalli updated MAPREDUCE-3256:
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Status: Patch Available (was: Open)
> Authorization checks needed for AM->NM protocol
> -----------------------------------------------
>
> Key: MAPREDUCE-3256
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-3256
> Project: Hadoop Map/Reduce
> Issue Type: Sub-task
> Components: applicationmaster, mrv2, nodemanager, security
> Affects Versions: 0.23.0
> Reporter: Vinod Kumar Vavilapalli
> Assignee: Vinod Kumar Vavilapalli
> Priority: Blocker
> Fix For: 0.23.0
>
> Attachments: MAPREDUCE-3256-20111028.1.txt
>
>
> We already authenticate requests to NM from any AM. We also need to authorize
> the requests, otherwise a rogue AM, *but with proper tokens and thus
> authenticated to talk to NM*, could either launch or kill a container with
> different ContainerID. We have two options:
> - Remove the explicit passing of the ContainerId as part of the API and
> instead get it from the RPC layer. In this case, we will need a
> ContainerToken for each container.
> - Do explicit authorization checks without relying on getting ContainerID
> from the RPC.
> One ContainerToken per container is a serious restriction. We anyways want to
> be able to use application-ACLS to, say, stop containers owned by others. So
> I am going to take the later route of explicit checks.
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