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https://issues.apache.org/jira/browse/YARN-2242?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14060513#comment-14060513
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Junping Du commented on YARN-2242:
----------------------------------
{code}
+ boolean shouldCheckURL = (applicationAttempt.getTrackingUrl() == null);
{code}
Should be:
{code}
+ boolean shouldCheckURL = (applicationAttempt.getTrackingUrl() != null);
{code}
Other looks good to me. [~vinodkv], may be you want to look at it again?
> 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
> Fix For: 2.6.0
>
> Attachments: YARN-2242-070115-2.patch, YARN-2242-070814-1.patch,
> YARN-2242-070814.patch, YARN-2242-071114.patch, YARN-2242-071214.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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