org.apache.spark.executor

TaskMetrics

class TaskMetrics extends Serializable

:: DeveloperApi :: Metrics tracked during the execution of a task.

This class is used to house metrics both for in-progress and completed tasks. In executors, both the task thread and the heartbeat thread write to the TaskMetrics. The heartbeat thread reads it to send in-progress metrics, and the task thread reads it to send metrics along with the completed task.

So, when adding new fields, take into consideration that the whole object can be serialized for shipping off at any time to consumers of the SparkListener interface.

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@DeveloperApi()
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Instance Constructors

  1. new TaskMetrics()

Value Members

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

    Definition Classes
    AnyRef

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

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  3. final def ##(): Int

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  4. final def ==(arg0: AnyRef): Boolean

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  5. final def ==(arg0: Any): Boolean

    Definition Classes
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  6. def accumulatorUpdates(): Map[Long, Any]

    Return the latest updates of accumulators in this task.

  7. final def asInstanceOf[T0]: T0

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  8. def clone(): AnyRef

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    protected[java.lang]
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    @throws( ... )

  9. def diskBytesSpilled: Long

  10. final def eq(arg0: AnyRef): Boolean

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  11. def equals(arg0: Any): Boolean

    Definition Classes
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  12. def executorDeserializeTime: Long

  13. def executorRunTime: Long

  14. def finalize(): Unit

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    @throws( classOf[java.lang.Throwable] )

  15. final def getClass(): Class[_]

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  16. def hashCode(): Int

    Definition Classes
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  17. def hostname: String

  18. def inputMetrics: Option[InputMetrics]

  19. final def isInstanceOf[T0]: Boolean

    Definition Classes
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  20. def jvmGCTime: Long

  21. def memoryBytesSpilled: Long

  22. final def ne(arg0: AnyRef): Boolean

    Definition Classes
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  23. final def notify(): Unit

    Definition Classes
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  24. final def notifyAll(): Unit

    Definition Classes
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  25. var outputMetrics: Option[OutputMetrics]

    If this task writes data externally (e.

    If this task writes data externally (e.g. to a distributed filesystem), metrics on how much data was written are stored here.

  26. def resultSerializationTime: Long

  27. def resultSize: Long

  28. def shuffleReadMetrics: Option[ShuffleReadMetrics]

  29. var shuffleWriteMetrics: Option[ShuffleWriteMetrics]

    If this task writes to shuffle output, metrics on the written shuffle data will be collected here

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

    Definition Classes
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  31. def toString(): String

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  32. var updatedBlocks: Option[Seq[(BlockId, BlockStatus)]]

    Storage statuses of any blocks that have been updated as a result of this task.

  33. final def wait(): Unit

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    @throws( ... )

  34. final def wait(arg0: Long, arg1: Int): Unit

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    @throws( ... )

  35. final def wait(arg0: Long): Unit

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