StochasticLoadBalancer.PrimaryRegionCountSkewCostFunction (Apache HBase 1.2.12 API)

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java.lang.Object
- org.apache.hadoop.hbase.master.balancer.StochasticLoadBalancer.CostFunction
- - org.apache.hadoop.hbase.master.balancer.StochasticLoadBalancer.PrimaryRegionCountSkewCostFunction

Enclosing class:

StochasticLoadBalancer
```
static class StochasticLoadBalancer.PrimaryRegionCountSkewCostFunction
extends StochasticLoadBalancer.CostFunction
```
Compute the cost of a potential cluster state from skew in number of primary regions on a cluster.

Field Summary

Fields
Modifier and Type	Field and Description
`private static float`	`DEFAULT_PRIMARY_REGION_COUNT_SKEW_COST`
`private static String`	`PRIMARY_REGION_COUNT_SKEW_COST_KEY`
`private double[]`	`stats`

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

Constructor Summary

Constructors
Constructor and Description

StochasticLoadBalancer.PrimaryRegionCountSkewCostFunction(org.apache.hadoop.conf.Configuration conf)

Method Summary

Methods
Modifier and Type Method and Description

(package private) double cost()
- Methods inherited from class org.apache.hadoop.hbase.master.balancer.StochasticLoadBalancer.CostFunction
  costFromArray, getMultiplier, init, postAction, regionMoved, scale, setMultiplier
- Methods inherited from class java.lang.Object
  clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - PRIMARY_REGION_COUNT_SKEW_COST_KEY
```
private static final String PRIMARY_REGION_COUNT_SKEW_COST_KEY
```
    See Also:
    Constant Field Values
  - DEFAULT_PRIMARY_REGION_COUNT_SKEW_COST
```
private static final float DEFAULT_PRIMARY_REGION_COUNT_SKEW_COST
```
    See Also:
    Constant Field Values
  - stats
```
private double[] stats
```
- Constructor Detail
  - StochasticLoadBalancer.PrimaryRegionCountSkewCostFunction
```
StochasticLoadBalancer.PrimaryRegionCountSkewCostFunction(org.apache.hadoop.conf.Configuration conf)
```
- Method Detail
  - cost
```
double cost()
```
    Specified by:
    
    cost in class StochasticLoadBalancer.CostFunction

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