org.apache.hadoop.hbase.master.balancer

Class CostFromRegionLoadAsRateFunction

java.lang.Object

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

org.apache.hadoop.hbase.master.balancer.CostFromRegionLoadFunction

org.apache.hadoop.hbase.master.balancer.CostFromRegionLoadAsRateFunction

Direct Known Subclasses:

MemStoreSizeCostFunction, ReadRequestCostFunction, WriteRequestCostFunction

@InterfaceAudience.Private
abstract class CostFromRegionLoadAsRateFunction
extends CostFromRegionLoadFunction

Class to be used for the subset of RegionLoad costs that should be treated as rates. We do not compare about the actual rate in requests per second but rather the rate relative to the rest of the regions.

Field Summary

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

cluster, COST_EPSILON

Constructor Summary

Constructors

Constructor and Description
CostFromRegionLoadAsRateFunction()

Method Summary

Modifier and Type	Method and Description
protected double	getRegionLoadCost(Collection<BalancerRegionLoad> regionLoadList)

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

cost, getCostFromRl, prepare, regionMoved

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

getMultiplier, isNeeded, postAction, scale, setMultiplier, updateWeight

Methods inherited from class java.lang.Object

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

Constructor Detail

CostFromRegionLoadAsRateFunction

CostFromRegionLoadAsRateFunction()

Method Detail

getRegionLoadCost

protected double getRegionLoadCost(Collection<BalancerRegionLoad> regionLoadList)

Overrides:

getRegionLoadCost in class CostFromRegionLoadFunction