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https://issues.apache.org/jira/browse/YARN-2242?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14051066#comment-14051066
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Junping Du commented on YARN-2242:
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bq. Zhijie Shen, thank you for the notification. I agree with Li Lu - these 
patches can be helpful for users. And, I checked the patch and confirmed that 
these patches are bisect each other. Therefore, we can work separately. Junping 
Du, could you also review YARN-2013?
Sure. [~ozawa], will look at YARN-2013 later.

> 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, 
> YARN-2242-070115-1.patch, YARN-2242-070115.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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