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From "Hadoop QA (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-3256) Authorization checks needed for AM->NM protocol
Date Sat, 29 Oct 2011 08:07:32 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-3256?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13139149#comment-13139149

Hadoop QA commented on MAPREDUCE-3256:

+1 overall.  Here are the results of testing the latest attachment 
  against trunk revision .

    +1 @author.  The patch does not contain any @author tags.

    +1 tests included.  The patch appears to include 16 new or modified tests.

    +1 javadoc.  The javadoc tool did not generate any warning messages.

    +1 javac.  The applied patch does not increase the total number of javac compiler warnings.

    +1 findbugs.  The patch does not introduce any new Findbugs (version 1.3.9) warnings.

    +1 release audit.  The applied patch does not increase the total number of release audit

    +1 core tests.  The patch passed unit tests in .

    +1 contrib tests.  The patch passed contrib unit tests.

Test results: https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/1204//testReport/
Console output: https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/1204//console

This message is automatically generated.
> 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, MAPREDUCE-3256-20111028.2.txt, MAPREDUCE-3256-20111028.2_same,
MAPREDUCE-3256-20111029.1.txt, MAPREDUCE-3256-20111029.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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