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From "Todd Lipcon (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MAPREDUCE-2373) When tasks exit with a nonzero exit status, task runner should log the stderr as well as stdout
Date Wed, 06 Jul 2011 01:14:16 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-2373?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Todd Lipcon updated MAPREDUCE-2373:
-----------------------------------

    Attachment: mr-2373-amendment.txt

here's an amendment to this patch -- the issue is that setPermission can actually throw ExitCodeException,
which then caused an NPE in the catch clause.

When this patch is put on trunk/mrv2, we should include this amendment.

> When tasks exit with a nonzero exit status, task runner should log the stderr as well
as stdout
> -----------------------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-2373
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2373
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>    Affects Versions: 0.22.0
>            Reporter: Todd Lipcon
>            Assignee: Todd Lipcon
>             Fix For: 0.22.0
>
>         Attachments: mapreduce-2373-on-20sec.txt, mr-2373-amendment.txt
>
>
> Currently, if the taskjvm.sh script fails to exec java for some reason, it prints its
error message to stderr. This doesn't make it to the logs anywhere. Logging the stderr is
very useful to understand why taskjvm.sh failed to start the Child jvm.

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