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From "Zhijie Shen (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-5505) Clients should be notified job finished only after job successfully unregistered
Date Tue, 17 Sep 2013 20:41:54 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-5505?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13769920#comment-13769920
] 

Zhijie Shen commented on MAPREDUCE-5505:
----------------------------------------

IMHO, when getReport() from a job, we can check whether the AM has been unregistered or not
(probably by checking whether FinalApplicationStatus is undefined or not). If the AM is unregistered,
we return the final state. Otherwise, we return RUNNING instead. Thoughts?
                
> Clients should be notified job finished only after job successfully unregistered 
> ---------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-5505
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-5505
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>            Reporter: Jian He
>            Assignee: Zhijie Shen
>
> This is to make sure user is notified job finished after job is really done. This does
increase client latency but can reduce some races during unregister like YARN-540

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