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https://issues.apache.org/jira/browse/MAHOUT-1271?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13695245#comment-13695245
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Suneel Marthi commented on MAHOUT-1271:
---------------------------------------
This issue is only seen when running with Complimentary Naive Bayes or Naive
Bayes options.
seqdirectory now executes as a MapReduce job (in light of the changes in
Mahout-833) unless the sequential option is explicitly specified.
classify-20newsgroups.sh creates 20new-seq/ directory on the first run, but
subsequent runs fail as the directory already exists from the previous runs.
The fix was to specify --overwrite flag when invoking seqdirectory.
> classify-20newsgroups.sh fails during the seqdirectory step
> -----------------------------------------------------------
>
> Key: MAHOUT-1271
> URL: https://issues.apache.org/jira/browse/MAHOUT-1271
> Project: Mahout
> Issue Type: Bug
> Components: Examples
> Affects Versions: 0.8
> Reporter: Suneel Marthi
> Assignee: Suneel Marthi
> Fix For: 0.8
>
>
> classify-20newsgroups.sh fails during the seqdirectory step as it fails to
> overwrite the output folder.
> {Code}
> Exception in thread "main"
> org.apache.hadoop.mapred.FileAlreadyExistsException: Output directory
> /tmp/mahout-work-jenkins/20news-seq already exists
> {Code}
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