com.twitter.scalding.reducer_estimation

InputScaledRuntimeReducerEstimator

trait InputScaledRuntimeReducerEstimator extends HistoryReducerEstimator

Linear Supertypes
HistoryReducerEstimator, ReducerEstimator, AnyRef, Any
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Inherited
  1. InputScaledRuntimeReducerEstimator
  2. HistoryReducerEstimator
  3. ReducerEstimator
  4. AnyRef
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Abstract Value Members

  1. abstract def historyService: HistoryService

    Definition Classes
    HistoryReducerEstimator

  2. abstract def runtimeEstimationScheme: RuntimeEstimationScheme

Concrete Value Members

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

    Definition Classes
    AnyRef

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

    Definition Classes
    Any

  3. final def ##(): Int

    Definition Classes
    AnyRef → Any

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

    Definition Classes
    AnyRef

  5. final def ==(arg0: Any): Boolean

    Definition Classes
    Any

  6. final def asInstanceOf[T0]: T0

    Definition Classes
    Any

  7. def clone(): AnyRef

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

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

    Definition Classes
    AnyRef

  9. def equals(arg0: Any): Boolean

    Definition Classes
    AnyRef → Any

  10. def estimateReducers(info: FlowStrategyInfo, history: Seq[FlowStepHistory]): Option[Int]

    Definition Classes
    InputScaledRuntimeReducerEstimator → HistoryReducerEstimator

  11. def estimateReducers(info: FlowStrategyInfo): Option[Int]

    Estimate how many reducers should be used.

    Estimate how many reducers should be used. Called for each FlowStep before it is scheduled. Custom reducer estimators should override this rather than apply() directly.

    info

    Holds information about the overall flow (.flow), previously-run steps (.predecessorSteps), and the current step (.step).

    returns

    Number of reducers recommended by the estimator, or None to keep the default.

    Definition Classes
    HistoryReducerEstimator → ReducerEstimator

  12. def finalize(): Unit

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )

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

    Definition Classes
    AnyRef → Any

  14. def hashCode(): Int

    Definition Classes
    AnyRef → Any

  15. final def isInstanceOf[T0]: Boolean

    Definition Classes
    Any

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

    Definition Classes
    AnyRef

  17. final def notify(): Unit

    Definition Classes
    AnyRef

  18. final def notifyAll(): Unit

    Definition Classes
    AnyRef

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

    Definition Classes
    AnyRef

  20. def toString(): String

    Definition Classes
    AnyRef → Any

  21. final def wait(): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

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

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

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

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

Inherited from HistoryReducerEstimator

Inherited from ReducerEstimator

Inherited from AnyRef

Inherited from Any

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