Leting Wu created MAHOUT-1034:
---------------------------------
Summary: 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}
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