This error was likely caused by incorrect -c parameter. The error
message was misleading. I committed a better message earlier this week.
Synthetic control works reliably with k-Means when the arguments are
given correctly. I think this can be closed.
On 9/24/10 8:34 AM, Sean Owen (JIRA) wrote:
[
https://issues.apache.org/jira/browse/MAHOUT-504?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Sean Owen updated MAHOUT-504:
-----------------------------
Assignee: Robin Anil
Fix Version/s: 0.5
Kmeans clustering error
-----------------------
Key: MAHOUT-504
URL: https://issues.apache.org/jira/browse/MAHOUT-504
Project: Mahout
Issue Type: Bug
Reporter: Zhen Guo
Assignee: Robin Anil
Fix For: 0.5
I tried the Kmeans algorithm on the Synthetic Control data. The following error
appears. I tried the Canopy algorithm, it is fine. This error is from Mapper. I
am using Trunk.
10/09/20 19:40:06 INFO mapred.JobClient: Task Id :
attempt_201008261432_1324_m_000000_0, Status : FAILED
java.lang.IllegalStateException: Cluster is empty!
at
org.apache.mahout.clustering.kmeans.KMeansClusterMapper.setup(KMeansClusterMapper.java:57)
at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:142)
at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:583)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:305)
at org.apache.hadoop.mapred.Child.main(Child.java:170)
