Andrew Musselman created MAHOUT-1402: ----------------------------------------
Summary: Zero clusters using streaming k-means option in cluster-reuters.sh Key: MAHOUT-1402 URL: https://issues.apache.org/jira/browse/MAHOUT-1402 Project: Mahout Issue Type: Bug Components: Clustering Affects Versions: 0.8 Environment: AWS default Linux AMI Reporter: Andrew Musselman Fix For: 0.9 Running cluster-reuters.sh in examples/bin results in this: [snip] INFO: Number of Centroids: 0 Jan 22, 2014 1:52:22 AM org.apache.hadoop.mapred.LocalJobRunner$Job run WARNING: job_local23982482_0001 java.lang.IllegalArgumentException: Must have nonzero number of training and test vectors. Asked for %.1f %% of %d vectors for test [10.000000149011612, 0] at com.google.common.base.Preconditions.checkArgument(Preconditions.java:120) at org.apache.mahout.clustering.streaming.cluster.BallKMeans.splitTrainTest(BallKMeans.java:176) at org.apache.mahout.clustering.streaming.cluster.BallKMeans.cluster(BallKMeans.java:192) at org.apache.mahout.clustering.streaming.mapreduce.StreamingKMeansReducer.getBestCentroids(StreamingKMeansReducer.java:107) at org.apache.mahout.clustering.streaming.mapreduce.StreamingKMeansReducer.reduce(StreamingKMeansReducer.java:73) at org.apache.mahout.clustering.streaming.mapreduce.StreamingKMeansReducer.reduce(StreamingKMeansReducer.java:37) at org.apache.hadoop.mapreduce.Reducer.run(Reducer.java:177) at org.apache.hadoop.mapred.ReduceTask.runNewReducer(ReduceTask.java:649) at org.apache.hadoop.mapred.ReduceTask.run(ReduceTask.java:418) at org.apache.hadoop.mapred.LocalJobRunner$Job.run(LocalJobRunner.java:398) [snip] WARNING: No qualcluster.props found on classpath, will use command-line arguments only Num clusters: 0; maxDistance: 0.000000 [Dunn Index] First: Infinity [Davies-Bouldin Index] First: NaN Jan 22, 2014 1:52:24 AM org.slf4j.impl.JCLLoggerAdapter info INFO: Program took 535 ms (Minutes: 0.008916666666666666) cluster,distance.mean,distance.sd,distance.q0,distance.q1,distance.q2,distance.q3,distance.q4,count,is.train -- This message was sent by Atlassian JIRA (v6.1.5#6160)