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https://issues.apache.org/jira/browse/MAHOUT-427?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12885577#action_12885577
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Peter Goldstein commented on MAHOUT-427:
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Thanks for clarifying.
The ./examples/bin/build-reuters.sh script didn't run after a 'mvn install'
from the root directory in a fresh install. This was on an EC2 machine,
following the EC2 deployment directions on the wiki (which I've since modified).
To get the script to run correctly I had to run an additional 'mvn install'
from the examples subdirectory. Not sure why that was necessary, but the
examples job file wasn't created until I ran the second command. So there may
be a build issue with the current scripts.
> $MAHOUT_HOME/examples/bin/build-reuters.sh doesn't run successfully because
> of classpath issues related to the -core argument
> -----------------------------------------------------------------------------------------------------------------------------
>
> Key: MAHOUT-427
> URL: https://issues.apache.org/jira/browse/MAHOUT-427
> Project: Mahout
> Issue Type: Bug
> Affects Versions: 0.4
> Environment: Hadoop installation on EC2 as described here -
> https://cwiki.apache.org/MAHOUT/mahoutec2.html
> Reporter: Peter Goldstein
>
> Once I resolved issue MAHOUT-426 , I was still not able to run the
> ./examples/bin/build-reuters.sh script without errors These were
> ClassNotFoundExceptions, indicating a problem with the classpath.
> The issue appears to be related to the "-core" argument, which controls the
> classpath. Placing '-core' as the first argument to the individual
> $MAHOUT_HOME/bin/mahout calls in the script solved the issue, but I'm not
> sure it was the correct solution. It's unclear to me what the '-core'
> argument is supposed to signify.
> Can someone shed some light on this, and tell me whether this is the correct
> solution to the problem? And if not, what is the correct solution to this
> classpath issue.
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