com.twitter.scalding.reducer_estimation

MedianEstimationScheme

object MedianEstimationScheme extends RuntimeEstimationScheme

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RuntimeEstimationScheme, AnyRef, Any
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  1. final def !=(arg0: AnyRef): Boolean

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  2. final def !=(arg0: Any): Boolean

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  3. final def ##(): Int

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  4. final def ==(arg0: AnyRef): Boolean

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  6. final def asInstanceOf[T0]: T0

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  7. def clone(): AnyRef

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  8. final def eq(arg0: AnyRef): Boolean

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  9. def equals(arg0: Any): Boolean

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  10. def estimateJobTime(times: Seq[Double]): Option[Double]

    Given a list of "typical" times observed in a series of jobs of the same FlowStep, aggregates these times into a single estimate of the time that a "typical" reducer took in a "typical" job.

    Given a list of "typical" times observed in a series of jobs of the same FlowStep, aggregates these times into a single estimate of the time that a "typical" reducer took in a "typical" job. Suggested implementation: mean or median.

    Definition Classes
    MedianEstimationScheme → RuntimeEstimationScheme

  11. def estimateTaskTime(times: Seq[Double]): Option[Double]

    Given a list of times that each reducer took in a certain FlowStep, aggregates these times into a single estimate of the time that a "typical" reducer took.

    Given a list of times that each reducer took in a certain FlowStep, aggregates these times into a single estimate of the time that a "typical" reducer took. Suggested implementation: mean or median.

    Definition Classes
    MedianEstimationScheme → RuntimeEstimationScheme

  12. def finalize(): Unit

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  13. final def getClass(): Class[_]

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  14. def hashCode(): Int

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  15. final def isInstanceOf[T0]: Boolean

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  16. final def ne(arg0: AnyRef): Boolean

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  17. final def notify(): Unit

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  18. final def notifyAll(): Unit

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  19. final def synchronized[T0](arg0: ⇒ T0): T0

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  20. def toString(): String

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  21. final def wait(): Unit

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  22. final def wait(arg0: Long, arg1: Int): Unit

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  23. final def wait(arg0: Long): Unit

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Inherited from RuntimeEstimationScheme

Inherited from AnyRef

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