Package org.apache.pulsar.broker.loadbalance

Interface ModularLoadManagerStrategy

All Known Implementing Classes:

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public interface ModularLoadManagerStrategy

Interface which serves as a component for ModularLoadManagerImpl, flexibly allowing the injection of potentially complex strategies.

Method Summary

Modifier and Type	Method	Description
static ModularLoadManagerStrategy	create(org.apache.pulsar.broker.ServiceConfiguration conf)	Create a placement strategy using the configuration.
java.util.Optional<java.lang.String>	selectBroker(java.util.Set<java.lang.String> candidates, BundleData bundleToAssign, LoadData loadData, org.apache.pulsar.broker.ServiceConfiguration conf)	Find a suitable broker to assign the given bundle to.

Method Detail

selectBroker

java.util.Optional<java.lang.String> selectBroker(java.util.Set<java.lang.String> candidates,
                                                  BundleData bundleToAssign,
                                                  LoadData loadData,
                                                  org.apache.pulsar.broker.ServiceConfiguration conf)

Find a suitable broker to assign the given bundle to.

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.

create

static ModularLoadManagerStrategy create(org.apache.pulsar.broker.ServiceConfiguration conf)

Create a placement strategy using the configuration.

Parameters:

conf - ServiceConfiguration to use.

Returns:

A placement strategy from the given configurations.