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From "Andrew Purtell (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-8158) Backport HBASE-8140 "TableMapReduceUtils#addDependencyJar fails when nested inside another MR job"
Date Tue, 02 Apr 2013 16:57:16 GMT

    [ https://issues.apache.org/jira/browse/HBASE-8158?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13619993#comment-13619993
] 

Andrew Purtell commented on HBASE-8158:
---------------------------------------

The trunk/0.95 patch is not factored for hadoop-compat and this seems like the sort of compatibility
issue that was designed for. For 0.94 reflection makes sense. For 0.95+, the same code in
hadoop-compat-1 makes sense, for hadoop-compat-2 we can assume JarFinder is there since Hadoop
2 code is >= 0.23. 

I would commit this to 0.94 (ping [~lhofhansl]) and maybe take it on the chin if there's test
issues :-) because the patch looks good, the work on this issue looks good, and there has
been good review. However I would like to hold off until a change goes in through trunk first.
Please let me know your thoughts on the above comment.
                
> Backport HBASE-8140 "TableMapReduceUtils#addDependencyJar fails when nested inside another
MR job"
> --------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-8158
>                 URL: https://issues.apache.org/jira/browse/HBASE-8158
>             Project: HBase
>          Issue Type: Bug
>          Components: mapreduce
>    Affects Versions: 0.94.7
>            Reporter: Nick Dimiduk
>            Assignee: Nick Dimiduk
>         Attachments: 8158-port-jarfinder-0.94.patch, 8158-port-jarfinder-0.94.patch,
8158-port-jarfinder-0.94.patch, 8158-port-jarfinder-0.94.patch, 8158-port-jarfinder-0.94.patch,
8158-trunk-parity.patch
>
>
> Assess the stability of the JarFinder util class from Hadoop-2, as a candidate for backporting
to 0.94.

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