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  1. Apache Nemo
  2. NEMO-154

Handle skewness information in SchedulingConstraint

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    • Type: Task
    • Status: Resolved
    • Priority: Minor
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: None
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      Description

      Currently, skewness is encoded as boolean isSkewed value of HashRange, which is set in DataSkewRuntimePass. This results in KeyRange implementation tied with an arbitrary feature('skewness').

       

      After IR-based dynamic optimization is done, we need to refactor this to let DataSkewRuntimePass toss the skewness information needed for scheduling to SchedulingConstraint, in IR-level.

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              • Assignee:
                jeongyoon Jeongyoon Eo
                Reporter:
                jeongyoon Jeongyoon Eo
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