Are you running trunk? It should not be possible to get that error any
more since the initial clusters are internally computed by Canopy and
the -c argument has been removed from the K-means and Fuzzy K-means
synthetic control jobs. Try running trunk with the following arguments:
-i testdata
-o output
-dm org.apache.mahout.common.distance.EuclideanDistanceMeasure
-t1 80
-t2 55
-x 10
-ow
-m 2
If you have a different set of arguments that can reproduce this problem
please post them and I will investigate further.
Jeff
On 9/27/10 6:29 AM, Lahiru Samarakoon wrote:
Dear All,
When I try to run the Synthetic Data example for Clustering using K-means
and Fuzzy K-means algorithms following error was prompted.
Please advice.
10/09/27 15:42:23 INFO mapred.JobClient: Task Id :
attempt_201009271237_0012_m_000000_1, Status : FAILED
java.lang.IllegalStateException: Cluster is empty!!!
at
org.apache.mahout.clustering.fuzzykmeans.FuzzyKMeansClusterMapper.setup(FuzzyKMeansClusterMapper.java:55)
at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:142)
at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:621)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:305)
at org.apache.hadoop.mapred.Child.main(Child.java:170)
Thanks,
Lahiru.
