To Whomsoever It May Concern -

I have kmeans clusters from Mahout 0.8 version. Since then we have upgraded our 
Hadoop stack and also Mahout to 0.9 version.

But I wanted to clusterdump the clusters we created using 0.8 version. When I 
use clusterdump in 0.9 version, I get an error -

Exception in thread "main" java.lang.ClassCastException: 
org.apache.mahout.clustering.classify.WeightedVectorWritable cannot be cast to 
org.apache.mahout.clustering.classify.WeightedPropertyVectorWritable

In 0.9 Apache Mahout Release Notes below, I see that the ClusteredPoints should 
be weightpropertyvectorwritable and not weightedvectorwritable.

http://svn.apache.org/viewvc/mahout/trunk/CHANGELOG?view=markup&pathrev=1563661

What should I do in this case? I still want the clusterdump of my previous 
clusters developed from 0.8 version.

I look forward to your reply.


Thank you,
V

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