org.apache.spark.executor

TaskMetrics

Related Doc: package executor

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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Instance Constructors

  1. new TaskMetrics()

Value Members

  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. def decDiskBytesSpilled(value: Long): Unit

  7. def diskBytesSpilled: Long

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

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  9. def equals(arg0: Any): Boolean

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  10. def executorDeserializeTime: Long

  11. def executorRunTime: Long

  12. def finalize(): Unit

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

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  14. def hashCode(): Int

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  15. def hostname: String

  16. def incDiskBytesSpilled(value: Long): Unit

  17. def inputMetrics: Option[InputMetrics]

  18. final def isInstanceOf[T0]: Boolean

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  19. def jvmGCTime: Long

  20. def memoryBytesSpilled: Long

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

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  22. final def notify(): Unit

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  23. final def notifyAll(): Unit

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  24. var outputMetrics: Option[OutputMetrics]

    If this task writes data externally (e.g.

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

  25. def resultSerializationTime: Long

  26. def resultSize: Long

  27. def shuffleReadMetrics: Option[ShuffleReadMetrics]

  28. var shuffleWriteMetrics: Option[ShuffleWriteMetrics]

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

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

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  30. def toString(): String

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

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

  32. final def wait(): Unit

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

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

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