[jira] Updated: (MAHOUT-197) LDADriver: No job jar file set leads to ClassNotFoundException: org.apache.mahout.clustering.lda.LDAMapper

["Drew Farris (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/MAHOUT-197?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Drew Farris updated MAHOUT-197:
-------------------------------

    Status: Patch Available  (was: Open)

> 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
>            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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