Which version/distribution of Hadoop are you using?
On 17.01.2013 16:08, Pat Ferrel wrote:
> +1 this, found the same problems, same fixes. Haven't seem your last problem
>
> On Jan 11, 2013, at 1:41 PM, Ying Liao <yliao...@gmail.com> wrote:
>
> I am tring factorize-movielens-1M.sh. I first find a bug in the sh file.
> Then I find a bug in org.apache.mahout.cf.taste.hadoop.als.DatasetSplitter,
> the argMap is not mapped. No I hit a third bug:
> [cloudera@localhost trunk]$ hadoop jar
> /home/cloudera/workspace/Mahout/trunk/examples/target/mahout-examples-0.8-SNAPSHOT-job.jar
> org.apache.mahout.cf.taste.hadoop.als.DatasetSplitter --input
> /user/cloudera/ratings.csv --output /user/cloudera/dataset
> --trainingPercentage 0.9 --probePercentage 0.1 --tempDir
> /user/cloudera/dataset/tmp
> 13/01/11 16:37:30 INFO common.AbstractJob: Command line arguments:
> {--endPhase=[2147483647], --input=[/user/cloudera/ratings.csv],
> --output=[/user/cloudera/dataset], --probePercentage=[0.1],
> --startPhase=[0], --tempDir=[/user/cloudera/dataset/tmp],
> --trainingPercentage=[0.9]}
> 13/01/11 16:37:30 WARN conf.Configuration: mapred.input.dir is deprecated.
> Instead, use mapreduce.input.fileinputformat.inputdir
> 13/01/11 16:37:30 WARN conf.Configuration: mapred.compress.map.output is
> deprecated. Instead, use mapreduce.map.output.compress
> 13/01/11 16:37:30 WARN conf.Configuration: mapred.output.dir is deprecated.
> Instead, use mapreduce.output.fileoutputformat.outputdir
> Exception in thread "main" java.lang.IncompatibleClassChangeError: Found
> interface org.apache.hadoop.mapreduce.JobContext, but class was expected
> at org.apache.mahout.common.HadoopUtil.getCustomJobName(HadoopUtil.java:166)
> at org.apache.mahout.common.AbstractJob.prepareJob(AbstractJob.java:553)
> at
> org.apache.mahout.cf.taste.hadoop.als.DatasetSplitter.run(DatasetSplitter.java:85)
> at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
> at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:84)
> at
> org.apache.mahout.cf.taste.hadoop.als.DatasetSplitter.main(DatasetSplitter.java:62)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at org.apache.hadoop.util.RunJar.main(RunJar.java:208)
>
> Any help is appreciated.
>
> Thanks,
> Ying
>
