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From jung hoon sohn <>
Subject KmeansDriver Question
Date Sat, 15 Sep 2012 07:29:30 GMT
Hello, I am trying to cluster the input data using KmeansDriver.
The input vector is transformed from the lucene vector using the
"bin/mahout lucene.vector ..." commands and when I run the
KmeansDriver using the run method, I get

12/09/15 15:18:13 INFO mapred.JobClient: Task Id :
attempt_201209121951_0067_m_000000_1, Status : FAILED
java.lang.ClassCastException: cannot be
cast to
        at org.apache.hadoop.mapred.MapTask.runNewMapper(
        at org.apache.hadoop.mapred.Child$
        at Method)
        at org.apache.hadoop.mapred.Child.main(

for several attempts but the process goes on and generates the output data.
I can even run the clusterdump using the output cluster data however I am
concerned about the effect of above errors.

Please help me to get through the problem.


Jung Hoon

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