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Jobs-spark技术分享

Jobs

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ActiveJob A job (aka action job or active job) is a top-level work item (computation) submitted to DAGScheduler to ...

SerializerManager-spark技术分享

SerializerManager

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SerializerManager Caution FIXME When SparkEnv is created (either for the driver or executors), it instan ...

AccumulatorContext-spark技术分享

AccumulatorContext

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AccumulatorContext AccumulatorContext is a private[spark] internal object used to track accumulators by Spark itse ...

Accumulators-spark技术分享

Accumulators

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Accumulators Accumulators are variables that are "added" to through an associative and commutative "add" operation ...

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