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From "Robert Joseph Evans (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MAPREDUCE-3982) TestEmptyJob fails with FileNotFound
Date Fri, 09 Mar 2012 14:56:57 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-3982?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Robert Joseph Evans updated MAPREDUCE-3982:

    Attachment: MR-3982.txt

This patch adds in a unit test that verifies that it still works even without any output.

I started to port TestEmptyJob to the MiniMrYarnCluster, but it uses a lot of methods that
are specific to the JT implementation to do some sort of synchronization test.  I really don't
understand all of the reasons for that test and why it is trying to force the scheduler to
schedule something.  I will file a separate JIRA to port it over because it is probably going
to take a while for me to fully understand the test.
> TestEmptyJob fails with FileNotFound
> ------------------------------------
>                 Key: MAPREDUCE-3982
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3982
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: mrv2
>    Affects Versions: 0.24.0, 0.23.2
>            Reporter: Robert Joseph Evans
>            Assignee: Robert Joseph Evans
>            Priority: Critical
>         Attachments: MR-3982.txt, MR-3982.txt
> TestEmptyJob fails because teh FileOutputCommitter expects a directory to be created
that is not created.  The FileOutputCommitter should either ignore the error or create the
directory itself.

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