Package org.apache.iotdb.confignode.manager.load.balancer

Class RouteBalancer

java.lang.Object

org.apache.iotdb.confignode.manager.load.balancer.RouteBalancer

All Implemented Interfaces:

IClusterStatusSubscriber

public class RouteBalancer
extends Object
implements IClusterStatusSubscriber

The RouteBalancer guides the cluster RegionGroups' leader distribution and routing priority.

Constructor Summary

Constructors

Constructor	Description
RouteBalancer(IManager configManager)

Method Summary

Modifier and Type	Method	Description
void	balanceRegionLeaderAndPriority()
void	clearRegionPriority()
Map<TConsensusGroupId,TRegionReplicaSet>	getRegionPriorityMap()
void	onConsensusGroupStatisticsChanged(ConsensusGroupStatisticsChangeEvent event)
void	onNodeStatisticsChanged(NodeStatisticsChangeEvent event)
void	onRegionGroupStatisticsChanged(RegionGroupStatisticsChangeEvent event)
void	removeRegionPriority(TConsensusGroupId regionGroupId)
void	waitForPriorityUpdate(List<TConsensusGroupId> regionGroupIds)	Wait for the specified RegionGroups to finish routing priority calculation.

Methods inherited from class java.lang.Object

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

Constructor Details

RouteBalancer

public RouteBalancer(IManager configManager)

Method Details

balanceRegionLeaderAndPriority

public void balanceRegionLeaderAndPriority()

getRegionPriorityMap

public Map<TConsensusGroupId,TRegionReplicaSet> getRegionPriorityMap()

Returns:

Map<RegionGroupId, RegionPriority>

removeRegionPriority

public void removeRegionPriority(TConsensusGroupId regionGroupId)

clearRegionPriority

public void clearRegionPriority()

waitForPriorityUpdate

public void waitForPriorityUpdate(List<TConsensusGroupId> regionGroupIds)

Wait for the specified RegionGroups to finish routing priority calculation.

Parameters:

regionGroupIds - Specified RegionGroupIds

onNodeStatisticsChanged

public void onNodeStatisticsChanged(NodeStatisticsChangeEvent event)

Specified by:

onNodeStatisticsChanged in interface IClusterStatusSubscriber

onRegionGroupStatisticsChanged

public void onRegionGroupStatisticsChanged(RegionGroupStatisticsChangeEvent event)

Specified by:

onRegionGroupStatisticsChanged in interface IClusterStatusSubscriber

onConsensusGroupStatisticsChanged

public void onConsensusGroupStatisticsChanged(ConsensusGroupStatisticsChangeEvent event)

Specified by:

onConsensusGroupStatisticsChanged in interface IClusterStatusSubscriber