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NumberFormatException in mahout RecommenderJob

Question asked by yuji on Aug 23, 2011
Latest reply on Aug 23, 2011 by yuji
I got NumberFormatException when I run mahout-job(org.apache.mahout.cf.taste.hadoop.item.RecommenderJob) on MapR. I used mahout-core-0.5-job.jar.
When "mapred.reduce.tasks" is default, it runs well, but setting more than 1, I got the exception.
On apache hadoop, I can get result file.

Are there any solutions?

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