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 and Description
LeastLongTermMessageRate(ServiceConfiguration conf)

Method Summary

Modifier and Type	Method and Description
Optional<String>	selectBroker(Set<String> candidates, BundleData bundleToAssign, LoadData loadData, 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

Methods inherited from interface org.apache.pulsar.broker.loadbalance.ModularLoadManagerStrategy

create

Constructor Detail

LeastLongTermMessageRate

public LeastLongTermMessageRate(ServiceConfiguration conf)

Method Detail

selectBroker

public Optional<String> selectBroker(Set<String> candidates,
                                     BundleData bundleToAssign,
                                     LoadData loadData,
                                     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.