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https://issues.apache.org/jira/browse/MAPREDUCE-4596?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Siddharth Seth updated MAPREDUCE-4596:
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Attachment: MR4596_4.txt
> 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_4.txt,
> MR4596-branch23_1.txt, MR4596-branch23_2.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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