org.apache.hadoop.hbase.master.balancer

Class LocalityBasedCandidateGenerator

java.lang.Object

org.apache.hadoop.hbase.master.balancer.CandidateGenerator

org.apache.hadoop.hbase.master.balancer.LocalityBasedCandidateGenerator

@InterfaceAudience.Private
class LocalityBasedCandidateGenerator
extends CandidateGenerator

Constructor Summary

Constructors

Constructor and Description
LocalityBasedCandidateGenerator()

Method Summary

Modifier and Type	Method and Description
(package private) BalanceAction	generate(BalancerClusterState cluster)
private double	getWeightedLocality(BalancerClusterState cluster, int region, int server)
private Optional<BalanceAction>	tryMoveOrSwap(BalancerClusterState cluster, int fromServer, int fromRegion, int toServer)

Methods inherited from class org.apache.hadoop.hbase.master.balancer.CandidateGenerator

getAction, pickOtherRandomRack, pickOtherRandomServer, pickRandomRack, pickRandomRegion, pickRandomRegions, pickRandomServer

Methods inherited from class java.lang.Object

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

Constructor Detail

LocalityBasedCandidateGenerator

LocalityBasedCandidateGenerator()

Method Detail

generate

BalanceAction generate(BalancerClusterState cluster)

Specified by:

generate in class CandidateGenerator

tryMoveOrSwap

private Optional<BalanceAction> tryMoveOrSwap(BalancerClusterState cluster,
                                              int fromServer,
                                              int fromRegion,
                                              int toServer)

getWeightedLocality

private double getWeightedLocality(BalancerClusterState cluster,
                                   int region,
                                   int server)