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Posted to dev@mrunit.apache.org by "Tom White (Updated) (JIRA)" <ji...@apache.org> on 2011/11/02 05:16:32 UTC

[jira] [Updated] (MRUNIT-31) Support Hadoop 0.22 and 0.23

     [ https://issues.apache.org/jira/browse/MRUNIT-31?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tom White updated MRUNIT-31:
----------------------------

    Attachment: MRUNIT-31.patch

Here's a patch that passes tests against Hadoop 0.23. It shouldn't be committed though, since it doesn't work with 0.20.

The problem is that Mapper.Context has a different constructor in 0.20 to 0.23 - so it's not possible to write a subclass that works in both. The simplest reflective solution would be to use a mock object library. CGLIB would work too.

                
> Support Hadoop 0.22 and 0.23
> ----------------------------
>
>                 Key: MRUNIT-31
>                 URL: https://issues.apache.org/jira/browse/MRUNIT-31
>             Project: MRUnit
>          Issue Type: Improvement
>            Reporter: Tom White
>         Attachments: MRUNIT-31.patch, MRUNIT-31.patch
>
>
> The new MapReduce API changed in 0.21 (MAPREDUCE-954) in such a way as to break MRUnit.

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