org.apache.hadoop.hbase.master.balancer

Class StochasticLoadBalancer.RackLocalityCostFunction

java.lang.Object

org.apache.hadoop.hbase.master.balancer.StochasticLoadBalancer.CostFunction

org.apache.hadoop.hbase.master.balancer.StochasticLoadBalancer.LocalityBasedCostFunction

org.apache.hadoop.hbase.master.balancer.StochasticLoadBalancer.RackLocalityCostFunction

Enclosing class:

StochasticLoadBalancer

static class StochasticLoadBalancer.RackLocalityCostFunction
extends StochasticLoadBalancer.LocalityBasedCostFunction

Field Summary

Fields

Modifier and Type	Field and Description
private static float	DEFAULT_RACK_LOCALITY_COST
private static String	RACK_LOCALITY_COST_KEY

Fields inherited from class org.apache.hadoop.hbase.master.balancer.StochasticLoadBalancer.CostFunction

cluster

Constructor Summary

Constructors

Constructor and Description
RackLocalityCostFunction(org.apache.hadoop.conf.Configuration conf, MasterServices services)

Method Summary

Modifier and Type	Method and Description
(package private) int	regionIndexToEntityIndex(int region) Maps region to the current entity (server or rack) on which it is stored

Methods inherited from class org.apache.hadoop.hbase.master.balancer.StochasticLoadBalancer.LocalityBasedCostFunction

cost, init, regionMoved, setServices

Methods inherited from class org.apache.hadoop.hbase.master.balancer.StochasticLoadBalancer.CostFunction

costFromArray, getMultiplier, isNeeded, postAction, scale, setMultiplier

Methods inherited from class java.lang.Object

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

Field Detail

RACK_LOCALITY_COST_KEY

private static final String RACK_LOCALITY_COST_KEY

See Also:

Constant Field Values

DEFAULT_RACK_LOCALITY_COST

private static final float DEFAULT_RACK_LOCALITY_COST

See Also:

Constant Field Values

Constructor Detail

RackLocalityCostFunction

public RackLocalityCostFunction(org.apache.hadoop.conf.Configuration conf,
                                MasterServices services)

Method Detail

regionIndexToEntityIndex

int regionIndexToEntityIndex(int region)

Description copied from class: StochasticLoadBalancer.LocalityBasedCostFunction

Maps region to the current entity (server or rack) on which it is stored

Specified by:

regionIndexToEntityIndex in class StochasticLoadBalancer.LocalityBasedCostFunction