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  1. Giraph
  2. GIRAPH-124

Combiner should return Iterable<M> instead of M or null.

    Details

    • Type: Improvement
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 0.1.0
    • Fix Version/s: 0.1.0
    • Component/s: graph
    • Labels:
      None

      Description

      Currently VertexCombiner is expected to return a single message combining the input messages, or null in case no message should be sent. The new expected interface should return an Iterable<M>, possibly empty. The number of elements in the returned Iterable is supposed to be smaller than the number of input messages, by the initial definition of a Combiner (defined as a function to reduce I/O by combining multiple messages into 1).

        Attachments

        1. GIRAPH-124.diff
          11 kB
          Claudio Martella
        2. GIRAPH-124.diff
          12 kB
          Claudio Martella

          Activity

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            • Assignee:
              Unassigned
              Reporter:
              cmartella Claudio Martella
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              Dates

              • Created:
                Updated:
                Resolved: