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From "Thomas Graves (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-4498) Downgrade hsqldb dependency to 1.8
Date Tue, 31 Jul 2012 16:39:34 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-4498?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13425908#comment-13425908
] 

Thomas Graves commented on MAPREDUCE-4498:
------------------------------------------

Actually I believe it was specifically upgraded to 2.X to fix a bug in the tests - see MAPREDUCE-3621.
 So if you do this I want to make sure thoses tests don't start failing.
                
> Downgrade hsqldb dependency to 1.8
> ----------------------------------
>
>                 Key: MAPREDUCE-4498
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4498
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: build, examples
>    Affects Versions: 2.2.0-alpha
>            Reporter: Robert Kanter
>            Assignee: Robert Kanter
>            Priority: Critical
>             Fix For: 2.2.0-alpha
>
>         Attachments: MAPREDUCE-4498.patch
>
>
> The hsqldb jar is included in hadoop for the DBCountPageView example only.  Currently
the example is using hsqldb version 2.x; however, 2.x is incompatible with 1.8.x -- having
this jar in the hadoop class path conflicts with dependent projects like Oozie, Hive, and
Pig which still use 1.8.x.  As there are no features hsqldb 2.x that are used by the example,
we should downgrade to 1.8.x to avoid conflicts for the other projects.

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