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  1. Avro
  2. AVRO-513

java mapreduce api should pass iterator of matching objects to reduce

    Details

    • Type: Improvement
    • Status: Closed
    • Priority: Major
    • Resolution: Duplicate
    • Affects Version/s: None
    • Fix Version/s: 1.4.0
    • Component/s: java
    • Labels:
      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
          7 kB
          Doug Cutting
        2. AVRO-513.patch
          7 kB
          Doug Cutting
        3. AVRO-513.patch
          7 kB
          Doug Cutting
        4. AVRO-513.patch
          8 kB
          Doug Cutting

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              • Assignee:
                cutting Doug Cutting
                Reporter:
                cutting Doug Cutting
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                • Created:
                  Updated:
                  Resolved: