Error while running recommendation system in mahout
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I am running recommendation system on a single node hadoop using mahout. It is run on movie data obtained from grouplens (100k data).
hadoop version - 1.1.1
I am executing the following command -
hadoop jar /home/avatar/Desktop/Dissertation/Mahout/mahout-distribution-0.9/mahout-core-0.9-job.jar org.apache.mahout.cf.taste.hadoop.item.RecommenderJob -s SIMILARITY_COOCCURRENCE --input /user/hduser/mahout/u.data --output /user/hduser/mahout/output
After a few successful mapreduce tasks, the following error is thrown by each job-
14/02/26 15:10:48 INFO mapred.JobClient: Task Id : attempt_201402261501_0007_m_000000_0, Status : FAILED
What does this error mean, and how to get over with it?
Thanks in advance!