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From "Chris Nauroth (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-9593) stack trace printed at ERROR for all yarn clients without hadoop.home set
Date Thu, 23 May 2013 19:13:20 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-9593?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13665511#comment-13665511
] 

Chris Nauroth commented on HADOOP-9593:
---------------------------------------

+1 for the new patch.  Thanks for correcting that, Steve.

{quote}
-1 tests included. The patch doesn't appear to include any new or modified tests.
Please justify why no new tests are needed for this patch.
Also please list what manual steps were performed to verify this patch.
{quote}

I believe no new tests is justified since this is just tuning log levels.
                
> stack trace printed at ERROR for all yarn clients without hadoop.home set
> -------------------------------------------------------------------------
>
>                 Key: HADOOP-9593
>                 URL: https://issues.apache.org/jira/browse/HADOOP-9593
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: util
>    Affects Versions: 3.0.0
>            Reporter: Steve Loughran
>         Attachments: HADOOP-9593-001.patch, HADOOP-9593-002.patch
>
>
> This is the problem of HADOOP-9482 now showing up in a different application -one whose
log4j settings haven't turned off all Shell logging.
> Unless you do that, all yarn clients will have a stack trace at error in their logs,
which is generating false alarms and is utterly pointless. Why does this merit a stack trace?
Why log it at error? It's not an error for a client app to not have these values set as long
as they have the relevant JARs on their classpath. And if they don't, they'll get some classpath
error instead

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