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

Class GreedyPriorityBalancer

java.lang.Object

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

All Implemented Interfaces:

IPriorityBalancer

Direct Known Subclasses:

LeaderPriorityBalancer

public class GreedyPriorityBalancer
extends Object
implements IPriorityBalancer

The GreedyPriorityBalancer always pick the Replica with the lowest loadScore

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
GreedyPriorityBalancer()

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

GreedyPriorityBalancer

public GreedyPriorityBalancer()

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

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.