StochasticLoadBalancer.RegionCountSkewCostFunction (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.RegionCountSkewCostFunction

Enclosing class:

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

- Field Summary
  
  Fields
  Modifier and Type Field and Description
  
  private static float DEFAULT_REGION_COUNT_SKEW_COST
  
  private static String 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.RegionCountSkewCostFunction(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
  - REGION_COUNT_SKEW_COST_KEY
```
private static final String REGION_COUNT_SKEW_COST_KEY
```
    See Also:
    Constant Field Values
  - DEFAULT_REGION_COUNT_SKEW_COST
```
private static final float DEFAULT_REGION_COUNT_SKEW_COST
```
    See Also:
    Constant Field Values
  - stats
```
private double[] stats
```
- Constructor Detail
  - StochasticLoadBalancer.RegionCountSkewCostFunction
```
StochasticLoadBalancer.RegionCountSkewCostFunction(org.apache.hadoop.conf.Configuration conf)
```
- Method Detail
  - cost
```
double cost()
```
    Specified by:
    
    cost in class StochasticLoadBalancer.CostFunction

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