[jira] [Created] (MAHOUT-1218) Streamimg k-means fails when the number of clusters specified is <= estimated map clusters

["Suneel Marthi (JIRA)" <ji...@apache.org>]

Suneel Marthi created MAHOUT-1218:
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             Summary: Streamimg k-means fails when the number of clusters specified is <= estimated map clusters
                 Key: MAHOUT-1218
                 URL: https://issues.apache.org/jira/browse/MAHOUT-1218
             Project: Mahout
          Issue Type: Bug
          Components: Clustering
    Affects Versions: 0.8
            Reporter: Suneel Marthi
            Assignee: Suneel Marthi


Running Streaming k-means with CosineDistanceMeasure, Fast Projection Search, number of clusters k= 60, number of estimated map clsuters -km = 60.

Exception in thread "main" java.lang.IllegalArgumentException: Invalid number of estimated map clusters; There must be more than the final number of clusters (k log n vs k)
	at com.google.common.base.Preconditions.checkArgument(Preconditions.java:92)
	at org.apache.mahout.clustering.streaming.mapreduce.StreamingKMeansDriver.configureOptionsForWorkers(StreamingKMeansDriver.java:327)
	at org.apache.mahout.clustering.streaming.mapreduce.StreamingKMeansDriver.configureOptionsForWorkers(StreamingKMeansDriver.java:280)
	at org.apache.mahout.clustering.streaming.mapreduce.StreamingKMeansDriver.run(StreamingKMeansDriver.java:227)
	at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
	at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:79)
	at org.apache.mahout.clustering.streaming.mapreduce.StreamingKMeansDriver.main(StreamingKMeansDriver.java:472)

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