Packages

object SparkContext extends Logging

The SparkContext object contains a number of implicit conversions and parameters for use with various Spark features.

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  1. final def !=(arg0: Any): Boolean
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    AnyRef → Any
  2. final def ##(): Int
    Definition Classes
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  3. final def ==(arg0: Any): Boolean
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  4. final def asInstanceOf[T0]: T0
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  5. def clone(): AnyRef
    Attributes
    protected[java.lang]
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    AnyRef
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    @native() @throws( ... )
  6. final def eq(arg0: AnyRef): Boolean
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  7. def equals(arg0: Any): Boolean
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  8. def finalize(): Unit
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    protected[java.lang]
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    @throws( classOf[java.lang.Throwable] )
  9. final def getClass(): Class[_]
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    @native()
  10. def getOrCreate(): SparkContext

    This function may be used to get or instantiate a SparkContext and register it as a singleton object.

    This function may be used to get or instantiate a SparkContext and register it as a singleton object. Because we can only have one active SparkContext per JVM, this is useful when applications may wish to share a SparkContext.

    This method allows not passing a SparkConf (useful if just retrieving).

    returns

    current SparkContext (or a new one if wasn't created before the function call)

    Note

    This function cannot be used to create multiple SparkContext instances even if multiple contexts are allowed.

  11. def getOrCreate(config: SparkConf): SparkContext

    This function may be used to get or instantiate a SparkContext and register it as a singleton object.

    This function may be used to get or instantiate a SparkContext and register it as a singleton object. Because we can only have one active SparkContext per JVM, this is useful when applications may wish to share a SparkContext.

    config

    SparkConfig that will be used for initialisation of the SparkContext

    returns

    current SparkContext (or a new one if it wasn't created before the function call)

    Note

    This function cannot be used to create multiple SparkContext instances even if multiple contexts are allowed.

  12. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  13. def initializeLogIfNecessary(isInterpreter: Boolean, silent: Boolean = false): 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. def jarOfClass(cls: Class[_]): Option[String]

    Find the JAR from which a given class was loaded, to make it easy for users to pass their JARs to SparkContext.

    Find the JAR from which a given class was loaded, to make it easy for users to pass their JARs to SparkContext.

    cls

    class that should be inside of the jar

    returns

    jar that contains the Class, None if not found

  18. def jarOfObject(obj: AnyRef): Option[String]

    Find the JAR that contains the class of a particular object, to make it easy for users to pass their JARs to SparkContext.

    Find the JAR that contains the class of a particular object, to make it easy for users to pass their JARs to SparkContext. In most cases you can call jarOfObject(this) in your driver program.

    obj

    reference to an instance which class should be inside of the jar

    returns

    jar that contains the class of the instance, None if not found

  19. def log: Logger
    Attributes
    protected
    Definition Classes
    Logging
  20. def logDebug(msg: ⇒ String, throwable: Throwable): Unit
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    protected
    Definition Classes
    Logging
  21. def logDebug(msg: ⇒ String): Unit
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    protected
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  22. def logError(msg: ⇒ String, throwable: Throwable): Unit
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    protected
    Definition Classes
    Logging
  23. def logError(msg: ⇒ String): Unit
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    protected
    Definition Classes
    Logging
  24. def logInfo(msg: ⇒ String, throwable: Throwable): Unit
    Attributes
    protected
    Definition Classes
    Logging
  25. def logInfo(msg: ⇒ String): Unit
    Attributes
    protected
    Definition Classes
    Logging
  26. def logName: String
    Attributes
    protected
    Definition Classes
    Logging
  27. def logTrace(msg: ⇒ String, throwable: Throwable): Unit
    Attributes
    protected
    Definition Classes
    Logging
  28. def logTrace(msg: ⇒ String): Unit
    Attributes
    protected
    Definition Classes
    Logging
  29. def logWarning(msg: ⇒ String, throwable: Throwable): Unit
    Attributes
    protected
    Definition Classes
    Logging
  30. def logWarning(msg: ⇒ String): Unit
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    protected
    Definition Classes
    Logging
  31. final def ne(arg0: AnyRef): Boolean
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    AnyRef
  32. final def notify(): Unit
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    AnyRef
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    @native()
  33. final def notifyAll(): Unit
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    @native()
  34. final def synchronized[T0](arg0: ⇒ T0): T0
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  35. def toString(): String
    Definition Classes
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  36. final def wait(): Unit
    Definition Classes
    AnyRef
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    @throws( ... )
  37. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
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    @throws( ... )
  38. final def wait(arg0: Long): Unit
    Definition Classes
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    @native() @throws( ... )

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