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https://issues.apache.org/jira/browse/MAHOUT-848?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13396672#comment-13396672
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Grant Ingersoll commented on MAHOUT-848:
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Yeah, please open another
> M/R job launching code should add Oozie's action.xml as a configuration
> resource of the Hadoop Configuration object
> -------------------------------------------------------------------------------------------------------------------
>
> Key: MAHOUT-848
> URL: https://issues.apache.org/jira/browse/MAHOUT-848
> Project: Mahout
> Issue Type: Improvement
> Components: Integration
> Affects Versions: 0.6
> Environment: oozie workflow
> Reporter: Timothy Potter
> Assignee: Grant Ingersoll
> Priority: Minor
> Labels: oozie
> Fix For: 0.7
>
> Attachments: MAHOUT-848.patch, MAHOUT-848.patch
>
>
> Here's an overview of what is happening:
> Oozie workflow has a sub-workflow (and in my case a sub-workflow to the
> sub-workflow, so 3 levels down) that launches a Mahout job, such as the
> vectorizer as a Java action. This job fails due to class loading issues, e.g.
> vectorizer code cannot load a Lucene class, which it's definitely in the job
> jar and definitely gets found just fine if launched from a simple Oozie
> (1-level) workflow.
> The solution is to include Oozie's action.xml as a configuration resource of
> the Hadoop Configuration object, i.e.
> String oozieActionConfXml =
> System.getProperty("oozie.action.conf.xml");
> if (oozieActionConfXml != null) {
> conf.addResource(new Path("file:///", oozieActionConfXml));
> }
> As you can see, there's no adverse affects if not running in an Oozie
> workflow. This code could be added to AbstractJob with minimal impact and
> much benefit to those of us using Mahout in our Oozie workflows.
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