Spark 4.1.0-preview3 ScalaDoc < Back

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package root
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root
package org
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root
package apache
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org
package spark
Core Spark functionality.
Core Spark functionality. org.apache.spark.SparkContext serves as the main entry point to Spark, while org.apache.spark.rdd.RDD is the data type representing a distributed collection, and provides most parallel operations.
In addition, org.apache.spark.rdd.PairRDDFunctions contains operations available only on RDDs of key-value pairs, such as groupByKey and join; org.apache.spark.rdd.DoubleRDDFunctions contains operations available only on RDDs of Doubles; and org.apache.spark.rdd.SequenceFileRDDFunctions contains operations available on RDDs that can be saved as SequenceFiles. These operations are automatically available on any RDD of the right type (e.g. RDD[(Int, Int)] through implicit conversions.
Java programmers should reference the org.apache.spark.api.java package for Spark programming APIs in Java.
Classes and methods marked with Experimental are user-facing features which have not been officially adopted by the Spark project. These are subject to change or removal in minor releases.
Classes and methods marked with Developer API are intended for advanced users want to extend Spark through lower level interfaces. These are subject to changes or removal in minor releases.
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apache
package metrics
Definition Classes
spark
package source
Sources used in Spark's metrics system.
Sources used in Spark's metrics system.
Definition Classes
metrics
CodegenMetrics
DoubleAccumulatorSource
HiveCatalogMetrics
LongAccumulatorSource

org.apache.spark.metrics.source

LongAccumulatorSource

Companion class LongAccumulatorSource

object LongAccumulatorSource

Metrics source specifically for LongAccumulators. Accumulators are only valid on the driver side, so these metrics are reported only by the driver. Register LongAccumulators using: LongAccumulatorSource.register(sc, {"name" -> longAccumulator})

Source: AccumulatorSource.scala

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def register(sc: SparkContext, accumulators: Map[String, LongAccumulator]): Unit
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Deprecated
(Since version 9)

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LongAccumulatorSource

Companion class LongAccumulatorSource

object LongAccumulatorSource

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LongAccumulatorSource

Companion class LongAccumulatorSource

object LongAccumulatorSource

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LongAccumulatorSource