[jira] [Commented] (MAPREDUCE-4498) Remove hsqldb jar from Hadoop runtime classpath

["Robert Kanter (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/MAPREDUCE-4498?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13426245#comment-13426245 ] 

Robert Kanter commented on MAPREDUCE-4498:
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v3 only adds some instructions in the javadoc for the example; no code or pom changes.
                
> Remove hsqldb jar from Hadoop runtime classpath
> -----------------------------------------------
>
>                 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-v2.patch, MAPREDUCE-4498-v3.patch, 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 remove it from Hadoop's runtime classpath.

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