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  1. Apache Avro
  2. AVRO-513

java mapreduce api should pass iterator of matching objects to reduce

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Details

    • Improvement
    • Status: Closed
    • Major
    • Resolution: Duplicate
    • None
    • 1.4.0
    • java
    • None

    Description

      The Java mapreduce API added in AVRO-493 requires reducers implementations to explicitly detect sequences of matching data.

      Rather the reduce method might better look something like:

      void reduce(Iterator<IN>, Collector<OUT>);

      Where all equal values are passed in a single call.

      Attachments

        1. AVRO-513.patch
          8 kB
          Doug Cutting
        2. AVRO-513.patch
          7 kB
          Doug Cutting
        3. AVRO-513.patch
          7 kB
          Doug Cutting
        4. AVRO-513.patch
          7 kB
          Doug Cutting

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              Dates

                Created:
                Updated:
                Resolved: