Packages

c

org.apache.spark

ShuffleDependency

class ShuffleDependency[K, V, C] extends Dependency[Product2[K, V]] with Logging

:: DeveloperApi :: Represents a dependency on the output of a shuffle stage. Note that in the case of shuffle, the RDD is transient since we don't need it on the executor side.

Annotations
@DeveloperApi()
Source
Dependency.scala
Linear Supertypes
Logging, Dependency[Product2[K, V]], Serializable, Serializable, AnyRef, Any
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Inherited
  1. ShuffleDependency
  2. Logging
  3. Dependency
  4. Serializable
  5. Serializable
  6. AnyRef
  7. Any
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Visibility
  1. Public
  2. All

Instance Constructors

  1. new ShuffleDependency(_rdd: RDD[_ <: Product2[K, V]], partitioner: Partitioner, serializer: Serializer = SparkEnv.get.serializer, keyOrdering: Option[Ordering[K]] = None, aggregator: Option[Aggregator[K, V, C]] = None, mapSideCombine: Boolean = false, shuffleWriterProcessor: ShuffleWriteProcessor = new ShuffleWriteProcessor)(implicit arg0: ClassTag[K], arg1: ClassTag[V], arg2: ClassTag[C])

    _rdd

    the parent RDD

    partitioner

    partitioner used to partition the shuffle output

    serializer

    Serializer to use. If not set explicitly then the default serializer, as specified by spark.serializer config option, will be used.

    keyOrdering

    key ordering for RDD's shuffles

    aggregator

    map/reduce-side aggregator for RDD's shuffle

    mapSideCombine

    whether to perform partial aggregation (also known as map-side combine)

    shuffleWriterProcessor

    the processor to control the write behavior in ShuffleMapTask

Value Members

  1. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##(): Int
    Definition Classes
    AnyRef → Any
  3. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  4. val aggregator: Option[Aggregator[K, V, C]]
  5. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  6. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... ) @native()
  7. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  8. def equals(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  9. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  10. final def getClass(): Class[_]
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  11. def getMergerLocs: Seq[BlockManagerId]
  12. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  13. def initializeLogIfNecessary(isInterpreter: Boolean, silent: Boolean): Boolean
    Attributes
    protected
    Definition Classes
    Logging
  14. def initializeLogIfNecessary(isInterpreter: Boolean): Unit
    Attributes
    protected
    Definition Classes
    Logging
  15. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  16. def isTraceEnabled(): Boolean
    Attributes
    protected
    Definition Classes
    Logging
  17. val keyOrdering: Option[Ordering[K]]
  18. def log: Logger
    Attributes
    protected
    Definition Classes
    Logging
  19. def logDebug(msg: ⇒ String, throwable: Throwable): Unit
    Attributes
    protected
    Definition Classes
    Logging
  20. def logDebug(msg: ⇒ String): Unit
    Attributes
    protected
    Definition Classes
    Logging
  21. def logError(msg: ⇒ String, throwable: Throwable): Unit
    Attributes
    protected
    Definition Classes
    Logging
  22. def logError(msg: ⇒ String): Unit
    Attributes
    protected
    Definition Classes
    Logging
  23. def logInfo(msg: ⇒ String, throwable: Throwable): Unit
    Attributes
    protected
    Definition Classes
    Logging
  24. def logInfo(msg: ⇒ String): Unit
    Attributes
    protected
    Definition Classes
    Logging
  25. def logName: String
    Attributes
    protected
    Definition Classes
    Logging
  26. def logTrace(msg: ⇒ String, throwable: Throwable): Unit
    Attributes
    protected
    Definition Classes
    Logging
  27. def logTrace(msg: ⇒ String): Unit
    Attributes
    protected
    Definition Classes
    Logging
  28. def logWarning(msg: ⇒ String, throwable: Throwable): Unit
    Attributes
    protected
    Definition Classes
    Logging
  29. def logWarning(msg: ⇒ String): Unit
    Attributes
    protected
    Definition Classes
    Logging
  30. val mapSideCombine: Boolean
  31. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  32. def newShuffleMergeState(): Unit
  33. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  34. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  35. val partitioner: Partitioner
  36. def rdd: RDD[Product2[K, V]]
    Definition Classes
    ShuffleDependency → Dependency
  37. val serializer: Serializer
  38. def setMergerLocs(mergerLocs: Seq[BlockManagerId]): Unit
  39. val shuffleHandle: ShuffleHandle
  40. val shuffleId: Int
  41. def shuffleMergeEnabled: Boolean
  42. def shuffleMergeFinalized: Boolean

    Returns true if push-based shuffle is disabled for this stage or empty RDD, or if the shuffle merge for this stage is finalized, i.e.

    Returns true if push-based shuffle is disabled for this stage or empty RDD, or if the shuffle merge for this stage is finalized, i.e. the shuffle merge results for all partitions are available.

  43. def shuffleMergeId: Int
  44. val shuffleWriterProcessor: ShuffleWriteProcessor
  45. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
    AnyRef
  46. def toString(): String
    Definition Classes
    AnyRef → Any
  47. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  48. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  49. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... ) @native()

Inherited from Logging

Inherited from Dependency[Product2[K, V]]

Inherited from Serializable

Inherited from Serializable

Inherited from AnyRef

Inherited from Any

Ungrouped