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Definition Classes: root

Definition Classes: root

Definition Classes: org

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.

Definition Classes: apache

package metrics

Definition Classes: spark

package source

Sources used in Spark's metrics system.

Definition Classes: metrics

CodegenMetrics

DoubleAccumulatorSource

HiveCatalogMetrics

LongAccumulatorSource

org.apache.spark.metrics

source

package source

Sources used in Spark's metrics system.

Source: package.scala

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class DoubleAccumulatorSource extends AccumulatorSource
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@Experimental()
class LongAccumulatorSource extends AccumulatorSource
Annotations
@Experimental()

Value Members

object CodegenMetrics extends Source
Metrics for code generation.
object DoubleAccumulatorSource
:: Experimental :: Metrics source specifically for DoubleAccumulators.
:: Experimental :: Metrics source specifically for DoubleAccumulators. Accumulators are only valid on the driver side, so these metrics are reported only by the driver. Register DoubleAccumulators using: DoubleAccumulatorSource.register(sc, {"name" -> doubleAccumulator})
Annotations
@Experimental()
object HiveCatalogMetrics extends Source
Metrics for access to the hive external catalog.
object LongAccumulatorSource
:: Experimental :: Metrics source specifically for LongAccumulators.
:: Experimental :: 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})
Annotations
@Experimental()

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