Packages

c

org.apache.spark.sql.execution.adaptive

CoalesceShufflePartitions

case class CoalesceShufflePartitions(session: SparkSession) extends Rule[SparkPlan] with AQEShuffleReadRule with Product with Serializable

A rule to coalesce the shuffle partitions based on the map output statistics, which can avoid many small reduce tasks that hurt performance.

Linear Supertypes
Serializable, Product, Equals, AQEShuffleReadRule, Rule[SparkPlan], Logging, SQLConfHelper, AnyRef, Any
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Inherited
  1. CoalesceShufflePartitions
  2. Serializable
  3. Product
  4. Equals
  5. AQEShuffleReadRule
  6. Rule
  7. Logging
  8. SQLConfHelper
  9. AnyRef
  10. Any
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Visibility
  1. Public
  2. Protected

Instance Constructors

  1. new CoalesceShufflePartitions(session: SparkSession)

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. def apply(plan: SparkPlan): SparkPlan
    Definition Classes
    CoalesceShufflePartitions → Rule
  5. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  6. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.CloneNotSupportedException]) @native()
  7. def conf: SQLConf
    Definition Classes
    SQLConfHelper
  8. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  9. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.Throwable])
  10. final def getClass(): Class[_ <: AnyRef]
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  11. def initializeLogIfNecessary(isInterpreter: Boolean, silent: Boolean): Boolean
    Attributes
    protected
    Definition Classes
    Logging
  12. def initializeLogIfNecessary(isInterpreter: Boolean): Unit
    Attributes
    protected
    Definition Classes
    Logging
  13. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  14. def isSupported(shuffle: ShuffleExchangeLike): Boolean
    Definition Classes
    CoalesceShufflePartitions → AQEShuffleReadRule
  15. def isTraceEnabled(): Boolean
    Attributes
    protected
    Definition Classes
    Logging
  16. def log: Logger
    Attributes
    protected
    Definition Classes
    Logging
  17. def logDebug(msg: => String, throwable: Throwable): Unit
    Attributes
    protected
    Definition Classes
    Logging
  18. def logDebug(msg: => String): Unit
    Attributes
    protected
    Definition Classes
    Logging
  19. def logError(msg: => String, throwable: Throwable): Unit
    Attributes
    protected
    Definition Classes
    Logging
  20. def logError(msg: => String): Unit
    Attributes
    protected
    Definition Classes
    Logging
  21. def logInfo(msg: => String, throwable: Throwable): Unit
    Attributes
    protected
    Definition Classes
    Logging
  22. def logInfo(msg: => String): Unit
    Attributes
    protected
    Definition Classes
    Logging
  23. def logName: String
    Attributes
    protected
    Definition Classes
    Logging
  24. def logTrace(msg: => String, throwable: Throwable): Unit
    Attributes
    protected
    Definition Classes
    Logging
  25. def logTrace(msg: => String): Unit
    Attributes
    protected
    Definition Classes
    Logging
  26. def logWarning(msg: => String, throwable: Throwable): Unit
    Attributes
    protected
    Definition Classes
    Logging
  27. def logWarning(msg: => String): Unit
    Attributes
    protected
    Definition Classes
    Logging
  28. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  29. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  30. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  31. def productElementNames: Iterator[String]
    Definition Classes
    Product
  32. lazy val ruleId: RuleId
    Attributes
    protected
    Definition Classes
    Rule
  33. val ruleName: String
    Definition Classes
    Rule
  34. val session: SparkSession
  35. val supportedShuffleOrigins: Seq[ShuffleOrigin]

    Returns the list of ShuffleOrigins supported by this rule.

    Returns the list of ShuffleOrigins supported by this rule.

    Definition Classes
    CoalesceShufflePartitions → AQEShuffleReadRule
  36. final def synchronized[T0](arg0: => T0): T0
    Definition Classes
    AnyRef
  37. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  38. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  39. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException]) @native()

Inherited from Serializable

Inherited from Product

Inherited from Equals

Inherited from AQEShuffleReadRule

Inherited from Rule[SparkPlan]

Inherited from Logging

Inherited from SQLConfHelper

Inherited from AnyRef

Inherited from Any

Ungrouped