Class

org.apache.spark

RangePartitioner

Related Doc: package spark

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class RangePartitioner[K, V] extends Partitioner

A org.apache.spark.Partitioner that partitions sortable records by range into roughly equal ranges. The ranges are determined by sampling the content of the RDD passed in.

Source
Partitioner.scala
Note

The actual number of partitions created by the RangePartitioner might not be the same as the partitions parameter, in the case where the number of sampled records is less than the value of partitions.

Linear Supertypes
Partitioner, Serializable, Serializable, AnyRef, Any
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  1. RangePartitioner
  2. Partitioner
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Visibility
  1. Public
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Instance Constructors

  1. new RangePartitioner(partitions: Int, rdd: RDD[_ <: Product2[K, V]], ascending: Boolean)(implicit arg0: Ordering[K], arg1: ClassTag[K])

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  2. new RangePartitioner(partitions: Int, rdd: RDD[_ <: Product2[K, V]], ascending: Boolean = true, samplePointsPerPartitionHint: Int = 20)(implicit arg0: Ordering[K], arg1: ClassTag[K])

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Value Members

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

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    Definition Classes
    AnyRef → Any
  2. final def ##(): Int

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    Definition Classes
    AnyRef → Any
  3. final def ==(arg0: Any): Boolean

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    Definition Classes
    AnyRef → Any
  4. final def asInstanceOf[T0]: T0

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    Any
  5. def clone(): AnyRef

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    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  6. final def eq(arg0: AnyRef): Boolean

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    Definition Classes
    AnyRef
  7. def equals(other: Any): Boolean

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    Definition Classes
    RangePartitioner → AnyRef → Any
  8. def finalize(): Unit

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    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  9. final def getClass(): Class[_]

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    Definition Classes
    AnyRef → Any
  10. def getPartition(key: Any): Int

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    Definition Classes
    RangePartitionerPartitioner
  11. def hashCode(): Int

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    Definition Classes
    RangePartitioner → AnyRef → Any
  12. final def isInstanceOf[T0]: Boolean

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    Definition Classes
    Any
  13. final def ne(arg0: AnyRef): Boolean

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    Definition Classes
    AnyRef
  14. final def notify(): Unit

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    Definition Classes
    AnyRef
  15. final def notifyAll(): Unit

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    Definition Classes
    AnyRef
  16. def numPartitions: Int

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    Definition Classes
    RangePartitionerPartitioner
  17. val samplePointsPerPartitionHint: Int

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

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    Definition Classes
    AnyRef
  19. def toString(): String

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    AnyRef → Any
  20. final def wait(): Unit

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    AnyRef
    Annotations
    @throws( ... )
  21. final def wait(arg0: Long, arg1: Int): Unit

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    @throws( ... )
  22. final def wait(arg0: Long): Unit

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    @throws( ... )

Inherited from Partitioner

Inherited from Serializable

Inherited from Serializable

Inherited from AnyRef

Inherited from Any

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