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https://issues.apache.org/jira/browse/MAHOUT-197?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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David Hall updated MAHOUT-197:
------------------------------
Resolution: Fixed
Status: Resolved (was: Patch Available)
Fixed in 887843
Thanks for the patch!
> LDADriver: No job jar file set leads to ClassNotFoundException:
> org.apache.mahout.clustering.lda.LDAMapper
> ----------------------------------------------------------------------------------------------------------
>
> Key: MAHOUT-197
> URL: https://issues.apache.org/jira/browse/MAHOUT-197
> Project: Mahout
> Issue Type: Bug
> Components: Clustering
> Affects Versions: 0.2
> Environment: ubuntu 9.04, sun jdk 1.6.0_07, hadoop cluster running
> 0.20.1, build from r834311 of
> http://svn.apache.org/repos/asf/lucene/mahout/trunk
> Reporter: Drew Farris
> Assignee: David Hall
> Priority: Minor
> Attachments: LDADriver-setJar.patch
>
>
> hadoop jar
> core/target/mahout-core-0.2-SNAPSHOT.joborg.apache.mahout.clustering.lda.LDADriver
> -i mahout/foo/foo-vectors -o mahout/foo/lda-cluster -w -k 1000 -v 82342
> --maxIter 2
> [...]
> 09/11/09 22:02:00 WARN mapred.JobClient: No job jar file set. User
> classes may not be found. See JobConf(Class) or
> JobConf#setJar(String).
> [...]
> 09/11/09 22:02:00 INFO input.FileInputFormat: Total input paths to process : 1
> 09/11/09 22:02:01 INFO mapred.JobClient: Running job: job_200911091316_0005
> 09/11/09 22:02:02 INFO mapred.JobClient: map 0% reduce 0%
> 09/11/09 22:02:12 INFO mapred.JobClient: Task Id :
> attempt_200911091316_0005_m_000000_0, Status : FAILED
> java.lang.RuntimeException: java.lang.ClassNotFoundException:
> org.apache.mahout.clustering.lda.LDAMapper
> at
> org.apache.hadoop.conf.Configuration.getClass(Configuration.java:808)
> at
> org.apache.hadoop.mapreduce.JobContext.getMapperClass(JobContext.java:157)
> at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:532)
> at org.apache.hadoop.mapred.MapTask.run(MapTask.java:305)
> at org.apache.hadoop.mapred.Child.main(Child.java:170)
> Caused by: java.lang.ClassNotFoundException:
> org.apache.mahout.clustering.lda.LDAMapper
> at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
> Can be fixed by adding the following line to LDADriver after line 299 in
> r831743:
> job.setJarByClass(LDADriver.class);
> (will attach trivial patch)
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