Package org.apache.pulsar.broker.loadbalance.impl

Class LeastLongTermMessageRate

java.lang.Object

org.apache.pulsar.broker.loadbalance.impl.LeastLongTermMessageRate

All Implemented Interfaces:

ModularLoadManagerStrategy

public class LeastLongTermMessageRate
extends Object
implements ModularLoadManagerStrategy

Placement strategy which selects a broker based on which one has the least long term message rate.

Constructor Summary

Constructors

Constructor	Description
LeastLongTermMessageRate()

Method Summary

Modifier and Type	Method	Description
Optional<String>	selectBroker(Set<String> candidates, org.apache.pulsar.policies.data.loadbalancer.BundleData bundleToAssign, LoadData loadData, org.apache.pulsar.broker.ServiceConfiguration conf)	Find a suitable broker to assign the given bundle to.

Methods inherited from class java.lang.Object

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

Constructor Details

LeastLongTermMessageRate

public LeastLongTermMessageRate()

Method Details

selectBroker

public Optional<String> selectBroker(Set<String> candidates,
 org.apache.pulsar.policies.data.loadbalancer.BundleData bundleToAssign,
 LoadData loadData,
 org.apache.pulsar.broker.ServiceConfiguration conf)

Find a suitable broker to assign the given bundle to.

Specified by:

selectBroker in interface ModularLoadManagerStrategy

Parameters:

candidates - The candidates for which the bundle may be assigned.

bundleToAssign - The data for the bundle to assign.

loadData - The load data from the leader broker.

conf - The service configuration.

Returns:

The name of the selected broker as it appears on ZooKeeper.