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  1. Hive
  2. HIVE-1749

ExecMapper and ExecReducer: reduce function calls to l4j.isInfoEnabled()

    Details

    • Type: Improvement
    • Status: Closed
    • Priority: Minor
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 0.7.0
    • Component/s: Query Processor
    • Labels:
      None
    • Hadoop Flags:
      Reviewed

      Description

      Calling l4j.isInfoEnabled() is more expensive than we thought. By eliminating this function call, we can save 1% - 3% CPU time, according to the profiliing.

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            • Assignee:
              sdong Siying Dong
              Reporter:
              sdong Siying Dong
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                Updated:
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