Package org.apache.spark.storage

Class BlockReplicationUtils

Object

org.apache.spark.storage.BlockReplicationUtils

public class BlockReplicationUtils
extends Object

Constructor Summary

Constructors

Constructor	Description
BlockReplicationUtils()

Method Summary

Modifier and Type	Method	Description
static <T> scala.collection.immutable.List<T>	getRandomSample(scala.collection.Seq<T> elems, int m, scala.util.Random r)	Get a random sample of size m from the elems

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

BlockReplicationUtils

public BlockReplicationUtils()

Method Details

getRandomSample

public static <T>
scala.collection.immutable.List<T> getRandomSample(scala.collection.Seq<T> elems,
 int m,
 scala.util.Random r)

Get a random sample of size m from the elems

Parameters:

elems -

m - number of samples needed

r - random number generator

Returns:

a random list of size m. If there are fewer than m elements in elems, we just randomly shuffle elems