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From "Vinod Kumar Vavilapalli (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-4596) Split StateMachine state from states seen by MRClientProtocol (for Job, Task, TaskAttempt)
Date Tue, 16 Oct 2012 20:59:04 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-4596?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13477339#comment-13477339
] 

Vinod Kumar Vavilapalli commented on MAPREDUCE-4596:
----------------------------------------------------

Looks good overall.

One comment( that doesn't need a response). MRApps.TaskAttemptStateUI is almost same as external
state now, but we can leave it as is because we primarily need it for the mapping.

+1. Will commit it once Jenkins blesses the patch.
                
> Split StateMachine state from states seen by MRClientProtocol (for Job, Task, TaskAttempt)
> ------------------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-4596
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4596
>             Project: Hadoop Map/Reduce
>          Issue Type: Task
>          Components: applicationmaster, mrv2
>    Affects Versions: 0.23.0
>            Reporter: Siddharth Seth
>            Assignee: Siddharth Seth
>         Attachments: MR4596_2.txt, MR4596_3.txt, MR4596-branch23_1.txt, MR4596.txt
>
>
> State machine states are currently exposed via MRClienProtocol. This makes it tough to
modify the AM state machines, or have an alternate AM with different state machines (MR-3902)
without the changes being visible in MRClientProtocol (MRv2 equivalent of ClientProtocol).

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