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https://issues.apache.org/jira/browse/YARN-2242?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Li Lu updated YARN-2242:
------------------------

    Attachment: YARN-2242-070114-1.patch

Second version, minimize change set. Test is not included since this patch only 
changes an output on the webpage UI, and could be verified on any AM launch 
crashes. 

> Improve exception information on AM launch crashes
> --------------------------------------------------
>
>                 Key: YARN-2242
>                 URL: https://issues.apache.org/jira/browse/YARN-2242
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>            Reporter: Li Lu
>            Assignee: Li Lu
>         Attachments: YARN-2242-070114-1.patch, YARN-2242-070114.patch
>
>
> Now on each time AM Container crashes during launch, both the console and the 
> webpage UI only report a ShellExitCodeExecption. This is not only unhelpful, 
> but sometimes confusing. With the help of log aggregator, container logs are 
> actually aggregated, and can be very helpful for debugging. One possible way 
> to improve the whole process is to send a "pointer" to the aggregated logs to 
> the programmer when reporting exception information. 



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