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  1. Hadoop Common
  2. HADOOP-647

Map outputs can't have a different type of compression from the reduce outputs

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    Details

    • Type: Improvement
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 0.7.2
    • Fix Version/s: 0.8.0
    • Component/s: None
    • Labels:
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      Description

      Right now there is only a single knob to control the compression type for sequence files. Sorting and merging is faster with record compression, but the files are smaller with block compression. I'd like to introduce a mapOutputCompressionType that lets the application control how the map outputs are compressed.

        Attachments

        1. map-out-compress-type.patch
          2 kB
          Owen O'Malley
        2. map-out-compress-type-2.patch
          2 kB
          Owen O'Malley

          Activity

            People

            • Assignee:
              omalley Owen O'Malley
              Reporter:
              omalley Owen O'Malley
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              Dates

              • Created:
                Updated:
                Resolved: