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https://issues.apache.org/jira/browse/YARN-808?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Xuan Gong reassigned YARN-808:
------------------------------

    Assignee: Xuan Gong
    
> ApplicationReport does not clearly tell that the attempt is running or not
> --------------------------------------------------------------------------
>
>                 Key: YARN-808
>                 URL: https://issues.apache.org/jira/browse/YARN-808
>             Project: Hadoop YARN
>          Issue Type: Bug
>    Affects Versions: 2.1.0-beta
>            Reporter: Bikas Saha
>            Assignee: Xuan Gong
>
> When an app attempt fails and is being retried, ApplicationReport immediately 
> gives the new attemptId and non-null values of host etc. There is no way for 
> clients to know that the attempt is running other than connecting to it and 
> timing out on invalid host. Solution would be to expose the attempt state or 
> return a null value for host instead of "N/A"

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