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From "Eli Reisman (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-3688) Need better Error message if AM is killed/throws exception
Date Tue, 19 Mar 2013 19:19:17 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-3688?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13606684#comment-13606684
] 

Eli Reisman commented on MAPREDUCE-3688:
----------------------------------------

Love it! Go Koji!!! 

Sandy was right to identify all the potential pain points to check into. In the end, we need
to figure out sensible, clear exit codes and error msgs to propagate. The empty diagnostic
messages just make everything slower and more difficult. Often this will be people's first
impression of working with YARN (getting their job set up and running to see what happens!)
so we don't want that.
                
> 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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