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https://issues.apache.org/jira/browse/MAHOUT-1016?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jeff Eastman reassigned MAHOUT-1016:
------------------------------------
Assignee: Jeff Eastman
> running clusterControlDataWithMeanShift against Hadoop 2.0.0 RC resulted in
> ClassCastException
> ----------------------------------------------------------------------------------------------
>
> Key: MAHOUT-1016
> URL: https://issues.apache.org/jira/browse/MAHOUT-1016
> Project: Mahout
> Issue Type: Bug
> Components: Examples
> Affects Versions: 0.7
> Reporter: Roman Shaposhnik
> Assignee: Jeff Eastman
>
> {noformat}
> $ mahout org.apache.mahout.clustering.syntheticcontrol.meanshift.Job
> .....
> 12/05/17 13:07:06 INFO mapreduce.Job: Task Id :
> attempt_1337269859451_0048_m_000000_0, Status : FAILED
> Error: java.lang.ClassCastException:
> org.apache.mahout.clustering.meanshift.MeanShiftCanopy cannot be cast to
> org.apache.mahout.clustering.iterator.ClusterWritable
> at
> org.apache.mahout.clustering.meanshift.MeanShiftCanopyMapper.map(MeanShiftCanopyMapper.java:31)
> at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:144)
> at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:725)
> at org.apache.hadoop.mapred.MapTask.run(MapTask.java:332)
> at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:152)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:396)
> at
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1232)
> at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:147)
> {noformat}
> Here's a failed Bigtop test report for more details (make sure to scroll to
> where the shell trace is given):
>
> http://bigtop01.cloudera.org:8080/view/Test/job/SmokeCluster/lastCompletedBuild/testReport/org.apache.bigtop.itest.mahout.smoke/TestMahoutExamples/clusterControlDataWithMeanShift/
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