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https://issues.apache.org/jira/browse/MAHOUT-1200?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13645969#comment-13645969
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Robin Anil commented on MAHOUT-1200:
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Can't you create a new subdirectory for each qualified class name
/tmp/mahout-temp/org.apache.mahout.clustering.ClusteringTest/ ?
> Mahout tests depend on writing to /tmp/hadoop-$user
> ---------------------------------------------------
>
> Key: MAHOUT-1200
> URL: https://issues.apache.org/jira/browse/MAHOUT-1200
> Project: Mahout
> Issue Type: Bug
> Components: build
> Affects Versions: 0.7
> Reporter: Isabel Drost
> Attachments: MAHOUT-1200.patch
>
>
> Running the Mahout test suite creates the temp directory /tmp/hadoop-$user
> which is used by all Hadoop related tests that pull up a local cluster. The
> directory is not removed after running the tests. In particular when running
> multiple tests in parallel on the same machine as the same user this can lead
> to problems.
> To re-produce issue the following commands prior to running the full test
> suite:
> mkdir /tmp/hadoop-$USER
> chmod 000 /tmp/hadoop-$USER
> mvn test
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