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  1. Flink
  2. FLINK-1285 Make execution mode configurable
  3. FLINK-1137

Add a way to switch between mutable object safe mode and efficient object reuse mode

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Details

    • Sub-task
    • Status: Resolved
    • Minor
    • Resolution: Fixed
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    Description

      Right now, Flink is conservative and takes precautions with respect to mutable objects. Neither the modifying of objects that are input to UDFs, nor modifying objects that are returned, will cause wrong results.

      This incurs a certain overhead for some operators. Most operators have a way to avoid that.

      I propose an optional switch to allow to set the system to a mode where it avoids those precautions, for the sake of efficiency.

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        Issue Links

          is duplicated by

          Improvement - An improvement or enhancement to an existing feature or task. FLINK-1005 Add different mutable-object modes to runtime

          • Major - Major loss of function.
          • Closed

          Improvement - An improvement or enhancement to an existing feature or task. FLINK-1238 Add a way to deactivate the "mutable object safe mode"

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Closed

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            People

              aljoscha Aljoscha Krettek
              sewen Stephan Ewen
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              Dates

                Created:
                Updated:
                Resolved: