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  1. Mahout
  2. MAHOUT-1637

RecommenderJob of ALS fails in the mapper because it uses the instance of other class

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      In the map method of PredictionMapper when executes the next line: Pair<OpenIntObjectHashMap<Vector>, OpenIntObjectHashMap<Vector>> uAndM = getSharedInstance();
      the job fail because obtains the instance of other class. This occurs because I launch a local job, so the instance exists previously and for this doesn't make the new correct instance for ALS.

      The solution that it works me is to add the next line:.
      SharingMapper.reset();
      in method run of JobRecommender of org.apache.mahout.cf.taste.hadoop.als package

      I have to test it in my environment with distributed mapreduce, hadoop fs, zookeeper and others if it works correctly.

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            • Assignee:
              andrew.musselman Andrew Musselman
              Reporter:
              cgalan Cristian Galán
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