org.apache.spark.storage

Class BlockReplicationUtils

Object

org.apache.spark.storage.BlockReplicationUtils

public class BlockReplicationUtils
extends Object

Constructor Summary

Constructors

Constructor and Description
BlockReplicationUtils()

Method Summary

Modifier and Type	Method and 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 Object

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

Constructor Detail

BlockReplicationUtils

public BlockReplicationUtils()

Method Detail

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