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From "Ruth Wisniewski (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-12026) Improve how error messages are displayed from jobclient - changes to Common
Date Sat, 23 May 2015 18:21:17 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-12026?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14557456#comment-14557456

Ruth Wisniewski commented on HADOOP-12026:

Please review, thanks!

> Improve how error messages are displayed from jobclient - changes to Common
> ---------------------------------------------------------------------------
>                 Key: HADOOP-12026
>                 URL: https://issues.apache.org/jira/browse/HADOOP-12026
>             Project: Hadoop Common
>          Issue Type: Improvement
>            Reporter: Ruth Wisniewski
>            Assignee: Ruth Wisniewski
>            Priority: Minor
>         Attachments: HADOOP-12026.001.patch
> This patch has the changes to Common needed for MAPREDUCE-347, which prints a message
rather than the whole stack trace when the output directory already exists. The attached patch
adds the OutputDirectoryAlreadyExistsException, and the handling of this exception in RunJar.java.
Modified tests are included in the Mapreduce part of this patch, which depends on the changes
to Common. If you would like me to upload the entire patch with the Mapreduce changes here,
please let me know. (Otherwise I'll add the Mapreduce changes to the MAPREDUCE-347 issue after
this patch is accepted.)
> The Mapreduce changes are necessary for the patch to really work. They throw the exception
when the output directory is found to exist in FileOutputFormat.java. They also will modify
a test and ExampleDriver.java.

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