Spark 4.0.0-preview1 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.
Definition Classes
apache
package shuffle
Definition Classes
spark
package api
Definition Classes
shuffle
package metadata
Definition Classes
api
ShuffleDataIO
ShuffleDriverComponents
ShuffleExecutorComponents
ShuffleMapOutputWriter
ShufflePartitionWriter
SingleSpillShuffleMapOutputWriter
WritableByteChannelWrapper

org.apache.spark.shuffle.api

SingleSpillShuffleMapOutputWriter

trait SingleSpillShuffleMapOutputWriter extends AnyRef

Optional extension for partition writing that is optimized for transferring a single file to the backing store.

Annotations: @Private()
Source: SingleSpillShuffleMapOutputWriter.java

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abstract def transferMapSpillFile(mapOutputFile: File, partitionLengths: Array[Long], checksums: Array[Long]): Unit
Transfer a file that contains the bytes of all the partitions written by this map task.

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Deprecated
(Since version 9)

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SingleSpillShuffleMapOutputWriter

trait SingleSpillShuffleMapOutputWriter extends AnyRef

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SingleSpillShuffleMapOutputWriter

trait SingleSpillShuffleMapOutputWriter extends AnyRef

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SingleSpillShuffleMapOutputWriter