org.apache.hadoop.hbase.master.balancer

Class MetricsStochasticBalancer

java.lang.Object

org.apache.hadoop.hbase.master.balancer.MetricsBalancer

org.apache.hadoop.hbase.master.balancer.MetricsStochasticBalancer

@InterfaceAudience.Private
public class MetricsStochasticBalancer
extends MetricsBalancer

This metrics balancer uses extended source for stochastic load balancer to report its related metrics to JMX. For details, refer to HBASE-13965

Field Summary

Fields

Modifier and Type	Field and Description
private MetricsStochasticBalancerSource	stochasticSource Use the stochastic source instead of the default source.

Constructor Summary

Constructors

Constructor and Description
MetricsStochasticBalancer()

Method Summary

Modifier and Type	Method and Description
void	balanceCluster(long time)
void	balancerStatus(boolean status) Updates the balancer status tag reported to JMX
void	incrMiscInvocations()
protected void	initSource() This function overrides the initSource in the MetricsBalancer, use MetricsStochasticBalancerSource instead of the MetricsBalancerSource.
void	updateMetricsSize(int size) Updates the number of metrics reported to JMX
void	updateStochasticCost(String tableName, String costFunctionName, String costFunctionDesc, Double value) Reports stochastic load balancer costs to JMX

Methods inherited from class java.lang.Object

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

Field Detail

stochasticSource

private MetricsStochasticBalancerSource stochasticSource

Use the stochastic source instead of the default source.

Constructor Detail

MetricsStochasticBalancer

public MetricsStochasticBalancer()

Method Detail

initSource

protected void initSource()

This function overrides the initSource in the MetricsBalancer, use MetricsStochasticBalancerSource instead of the MetricsBalancerSource.

Overrides:

initSource in class MetricsBalancer

balanceCluster

public void balanceCluster(long time)

Overrides:

balanceCluster in class MetricsBalancer

incrMiscInvocations

public void incrMiscInvocations()

Overrides:

incrMiscInvocations in class MetricsBalancer

balancerStatus

public void balancerStatus(boolean status)

Updates the balancer status tag reported to JMX

Overrides:

balancerStatus in class MetricsBalancer

updateMetricsSize

public void updateMetricsSize(int size)

Updates the number of metrics reported to JMX

updateStochasticCost

public void updateStochasticCost(String tableName,
                                 String costFunctionName,
                                 String costFunctionDesc,
                                 Double value)

Reports stochastic load balancer costs to JMX