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From "Ahmed Radwan (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MAPREDUCE-3369) Migrate MR1 tests to run on MR2 using the new interfaces introduced in MAPREDUCE-3169
Date Mon, 14 Nov 2011 07:05:51 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-3369?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Ahmed Radwan updated MAPREDUCE-3369:
------------------------------------

    Attachment: mv-cp.sh
                MAPREDUCE-3369_rev2_part2.patch
                MAPREDUCE-3369_rev2_part1.patch

Thanks Tom! I have divided the patch into two parts (MAPREDUCE-3369_rev2_part1.patch and MAPREDUCE-3369_rev2_part2.patch).
part1 just moves and copies files, equivalent to the mv, mkdir and cp commands in mv-cp.sh
attachment. part2 contains any post mv diffs to make the tests successfully pass.

In part1, and in order to avoid breaking the ant build under hadoop-mapreduce-project/src,
only the tests were moved, other example or utility classes needed by the test were just copied
under the mvn tree.

I have tried with tens of tests that use the MiniMRCluster directly or indirectly (e.g. through
HadoopTestCase). In the uploaded patch I have only moved tests that passed successfully with
no changes or few minor changes (a total of 29 tests in this patch). 

Within the investigated tests, I didn't move tests that are depended on MR1 server-side (e.g.
jobtracker-specific). Also some tests didn't seem to be dependent on MR1 but had failures
when I moved them. I tried to investigate some of these failures, but it was taking time and
I wasn't sure if such failures are a result of bugs in MR2 or changes to be done in the tests.
I agree with you that we can handle such cases in separate following tickets and keep the
current ticket for only the tests that passes successfully. 
                
> Migrate MR1 tests to run on MR2 using the new interfaces introduced in MAPREDUCE-3169
> -------------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-3369
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3369
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>          Components: mrv1, mrv2, test
>    Affects Versions: 0.23.0
>            Reporter: Ahmed Radwan
>            Assignee: Ahmed Radwan
>         Attachments: MAPREDUCE-3369.patch, MAPREDUCE-3369_rev2_part1.patch, MAPREDUCE-3369_rev2_part2.patch,
mv-cp.sh
>
>
> This ticket tracks the migration of MR1 tests (currently residing in "hadoop-mapreduce-project/src/test/")
to run on MR2. The migration is using the new interfaces introduced in MAPREDUCE-3169.

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