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https://issues.apache.org/jira/browse/MAPREDUCE-3688?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13606901#comment-13606901
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Ravi Prakash commented on MAPREDUCE-3688:
-----------------------------------------

Hi Sandy! Did you think about this? Otherwise I'll be happy to take this back 
and work on it in this week.

>From my testing on trunk, I notice that even for the case where the AM goes 
>over container limits (which I trigger with 
>-Dyarn.app.mapreduce.am.resource.mb=512 
>-Dyarn.app.mapreduce.am.command-opts="-Xmx3500m" on a sleep job), sometimes 
>the error is propagated back and sometimes its not. Can you please corroborate 
>this? When State == FinalState == FAILED, the error is propagated back. 
>However about half the times, State == FINISHED and FinalState == KILLED, in 
>which case there is no message anywhere to help me. Not in the diagnostics, 
>and there are no logs.

                
> Need better Error message if AM is killed/throws exception
> ----------------------------------------------------------
>
>                 Key: MAPREDUCE-3688
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3688
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: mr-am, mrv2
>    Affects Versions: 0.23.1
>            Reporter: David Capwell
>            Assignee: Sandy Ryza
>             Fix For: 0.23.2
>
>         Attachments: mapreduce-3688-h0.23-v01.patch, 
> mapreduce-3688-h0.23-v02.patch
>
>
> We need better error messages in the UI if the AM gets killed or throws an 
> Exception.
> If the following error gets thrown: 
> java.lang.NumberFormatException: For input string: "9223372036854775807l" // 
> last char is an L
> then the UI should say this exception.  Instead I get the following:
> Application application_1326504761991_0018 failed 1 times due to AM Container 
> for appattempt_1326504761991_0018_000001
> exited with exitCode: 1 due to: Exception from container-launch: 
> org.apache.hadoop.util.Shell$ExitCodeException

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