[
https://issues.apache.org/jira/browse/MAHOUT-428?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13098312#comment-13098312
]
Dan Brickley commented on MAHOUT-428:
-------------------------------------
Related: this seems to be a problem with spectral clustering too, informally
reported at
http://spectrallyclustered.wordpress.com/2010/07/14/sprint-3-quick-update/ (
I'm chatting with Shannon now). If I confirm it on a clean install I'll raise a
fresh jira, ...
> KMeansDriver: No job jar file set leads to ClassNotFoundException:
> org.apache.mahout.clustering.kmeans.KMeansMapper
> -------------------------------------------------------------------------------------------------------------------
>
> Key: MAHOUT-428
> URL: https://issues.apache.org/jira/browse/MAHOUT-428
> Project: Mahout
> Issue Type: Bug
> Components: Clustering
> Affects Versions: 0.3
> Environment: ubuntu 8.10, sun jdk 1.6.0_10-b33, hadoop cluster
> running 0.20.2+228, build from r957113 of
> http://svn.apache.org/repos/asf/lucene/mahout/trunk
> Reporter: Peter Goldstein
> Assignee: Ted Dunning
> Fix For: 0.4
>
> Attachments: MAHOUT-428.patch
>
>
> Running the $MAHOUT_HOME/examples/bin/build-reuters.sh script I encountered
> the following exception:
> 10/06/23 04:41:00 WARN mapred.JobClient: No job jar file set. User classes
> may not be found. See JobConf(Class) or JobConf#setJar(String).
> 10/06/23 04:41:01 INFO input.FileInputFormat: Total input paths to process : 1
> 10/06/23 04:41:01 INFO mapred.JobClient: Running job: job_201006222301_0019
> 10/06/23 04:41:02 INFO mapred.JobClient: map 0% reduce 0%
> 10/06/23 04:41:11 INFO mapred.JobClient: Task Id :
> attempt_201006222301_0019_m_000000_0, Status : FAILED
> java.lang.RuntimeException: java.lang.ClassNotFoundException:
> org.apache.mahout.clustering.kmeans.KMeansMapper
> at org.apache.hadoop.conf.Configuration.getClass(Configuration.java:960)
> at
> org.apache.hadoop.mapreduce.JobContext.getMapperClass(JobContext.java:158)
> This appears to be identical in cause to MAHOUT-197 , and has an almost
> identical fix. Adding a job.setJarByClass(KMeansDriver.class) line to the
> KMeansDriver.java file fixes the issue.
--
This message is automatically generated by JIRA.
For more information on JIRA, see: http://www.atlassian.com/software/jira
