Hadoop conf serialization issue? Does 1.0 have a new type? On Jul 9, 2012 8:16 AM, "Sean Owen (JIRA)" <j...@apache.org> wrote:
> > [ > https://issues.apache.org/jira/browse/MAHOUT-1034?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13409438#comment-13409438] > > Sean Owen commented on MAHOUT-1034: > ----------------------------------- > > This error shows that > org.apache.mahout.classifier.naivebayes.training.WeightsMapper.numLabels > was not set. I don't know why. > > > ERROR in Navie Bayes Training(trainnb) > > -------------------------------------- > > > > Key: MAHOUT-1034 > > URL: https://issues.apache.org/jira/browse/MAHOUT-1034 > > Project: Mahout > > Issue Type: Bug > > Components: Classification > > Affects Versions: 0.7 > > Environment: Ubuntu 11.04 > > Reporter: Leting Wu > > Priority: Critical > > > > When run either examples/classify-20newsgrouops.sh or > ash-email-examples.sh, trainnb always fails: > > {noformat} > > INFO mapred.JobClient: Task Id : attempt_201206281546_0003_m_000000_0, > Status : FAILED > > java.lang.IllegalArgumentException > > at > com.google.common.base.Preconditions.checkArgument(Preconditions.java:72) > > at > org.apache.mahout.classifier.naivebayes.training.WeightsMapper.setup(WeightsMapper.java:42) > > at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:142) > > at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:647) > > at org.apache.hadoop.mapred.MapTask.run(MapTask.java:323) > > at org.apache.hadoop.mapred.Child$4.run(Child.java:270) > > 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:1177) > > at org.apache.hadoop.mapred.Child.main(Child.java:264) > > {noformat} > > -- > This message is automatically generated by JIRA. > If you think it was sent incorrectly, please contact your JIRA > administrators: > https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa > For more information on JIRA, see: http://www.atlassian.com/software/jira > > >
