Packages

object SparkContext extends Logging

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

Source
SparkContext.scala
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  1. final def !=(arg0: Any): Boolean
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  2. final def ##(): Int
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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
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  6. final def eq(arg0: AnyRef): Boolean
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  8. def finalize(): Unit
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  9. final def getClass(): Class[_]
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  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)

  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)

  12. def hashCode(): Int
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  13. def initializeLogIfNecessary(isInterpreter: Boolean, silent: Boolean = false): Boolean
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    Logging
  14. def initializeLogIfNecessary(isInterpreter: Boolean): Unit
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  15. final def isInstanceOf[T0]: Boolean
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  16. def isTraceEnabled(): Boolean
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  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
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    Definition Classes
    Logging
  20. def logDebug(msg: ⇒ String, throwable: Throwable): Unit
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  21. def logDebug(msg: ⇒ String): Unit
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  22. def logError(msg: ⇒ String, throwable: Throwable): Unit
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  23. def logError(msg: ⇒ String): Unit
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    Logging
  24. def logInfo(msg: ⇒ String, throwable: Throwable): Unit
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    Logging
  25. def logInfo(msg: ⇒ String): Unit
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    Logging
  26. def logName: String
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    Logging
  27. def logTrace(msg: ⇒ String, throwable: Throwable): Unit
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    Logging
  28. def logTrace(msg: ⇒ String): Unit
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    protected
    Definition Classes
    Logging
  29. def logWarning(msg: ⇒ String, throwable: Throwable): Unit
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    protected
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  30. def logWarning(msg: ⇒ String): Unit
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  31. final def ne(arg0: AnyRef): Boolean
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  32. final def notify(): Unit
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  33. final def notifyAll(): Unit
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  34. final def synchronized[T0](arg0: ⇒ T0): T0
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  35. def toString(): String
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  36. final def wait(): Unit
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  37. final def wait(arg0: Long, arg1: Int): Unit
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  38. final def wait(arg0: Long): Unit
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