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  1. Mahout
  2. MAHOUT-704

Refactor PredictionJob to use MultipleInputs for reduce side joins

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      Description

      The code in org.apache.mahout.cf.taste.hadoop.als.PredictionJob should be refactored to use org.apache.hadoop.mapreduce.lib.input.MultipleInputs for the reduce-side joins. This should spare us some M/R cycles and greatly simplify the code.

      We'd need to add another prepareJob() method to AbstractJob in order to make this work.

      This is a rather cosmetic feature request that can wait till after the 0.5 release.

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            • Assignee:
              ssc Sebastian Schelter
              Reporter:
              ssc Sebastian Schelter
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