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  1. HBase
  2. HBASE-12058 [Umbrella] Reduce unnecessary object allocations
  3. HBASE-12748

RegionCoprocessorHost.execOperation creates too many iterator objects

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    Details

    • Type: Sub-task
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 0.94.25, 0.98.9
    • Fix Version/s: 1.2.0, 1.3.0, 0.98.15, 1.1.8, 2.0.0
    • Component/s: None
    • Labels:
      None
    • Hadoop Flags:
      Reviewed

      Description

      This is typical pattern of enhanced for ... loop usage in a hot code path. For every HBase operation it instantiates iterator for coprocessor list twice.

        Attachments

        1. HBASE-12748.patch
          20 kB
          Andrew Kyle Purtell
        2. HBASE-12748.patch
          23 kB
          Andrew Kyle Purtell
        3. HBase-12748.patch
          6 kB
          Vladimir Rodionov

          Activity

            People

            • Assignee:
              apurtell Andrew Kyle Purtell
              Reporter:
              vrodionov Vladimir Rodionov
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              Dates

              • Created:
                Updated:
                Resolved: