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

Class LeaderPriorityBalancer

java.lang.Object

org.apache.iotdb.confignode.manager.load.balancer.router.priority.GreedyPriorityBalancer

org.apache.iotdb.confignode.manager.load.balancer.router.priority.LeaderPriorityBalancer

All Implemented Interfaces:

IPriorityBalancer

public class LeaderPriorityBalancer
extends GreedyPriorityBalancer
implements IPriorityBalancer

The LeaderPriorityBalancer always pick the leader Replica

Field Summary

Fields inherited from interface org.apache.iotdb.confignode.manager.load.balancer.router.priority.IPriorityBalancer

GREEDY_POLICY, LEADER_POLICY

Constructor Summary

Constructors

Constructor	Description
LeaderPriorityBalancer()

Method Summary

Modifier and Type	Method	Description
Map<TConsensusGroupId,TRegionReplicaSet>	generateOptimalRoutePriority(List<TRegionReplicaSet> replicaSets, Map<TConsensusGroupId,Integer> regionLeaderMap)	Generate an optimal route priority.

Methods inherited from class java.lang.Object

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

Constructor Details

LeaderPriorityBalancer

public LeaderPriorityBalancer()

Method Details

generateOptimalRoutePriority

public Map<TConsensusGroupId,TRegionReplicaSet> generateOptimalRoutePriority(List<TRegionReplicaSet> replicaSets,
 Map<TConsensusGroupId,Integer> regionLeaderMap)

Description copied from interface: IPriorityBalancer

Generate an optimal route priority.

Specified by:

generateOptimalRoutePriority in interface IPriorityBalancer

Overrides:

generateOptimalRoutePriority in class GreedyPriorityBalancer

Parameters:

replicaSets - All RegionGroups

regionLeaderMap - The current leader of each RegionGroup

Returns:

Map<TConsensusGroupId, TRegionReplicaSet>, The optimal route priority for each RegionGroup. The replica with higher sorting result have higher priority.