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https://issues.apache.org/jira/browse/YARN-2242?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14049605#comment-14049605
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Li Lu commented on YARN-2242:
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Hi [~zjshen], you're right that the two jiras have much shared focus. If I
understand correctly, the available patch for YARN-2013 focused on launch time,
and the patch here focuses on help users making use of the logs generated by
log aggregator. In a whole package I think these two patches can alleviate the
problem on launch time 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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