org.apache.dubbo.rpc.cluster.support.registry

Class ZoneAwareClusterInvoker<T>

java.lang.Object

org.apache.dubbo.rpc.cluster.support.AbstractClusterInvoker<T>

org.apache.dubbo.rpc.cluster.support.registry.ZoneAwareClusterInvoker<T>

All Implemented Interfaces:

org.apache.dubbo.common.Node, ClusterInvoker<T>, Invoker<T>

public class ZoneAwareClusterInvoker<T>
extends AbstractClusterInvoker<T>

When there are more than one registry for subscription.

This extension provides a strategy to decide how to distribute traffics among them: 1. registry marked as 'preferred=true' has the highest priority. 2. check the zone the current request belongs, pick the registry that has the same zone first. 3. Evenly balance traffic between all registries based on each registry's weight.

Constructor Summary

Constructors

Constructor and Description
ZoneAwareClusterInvoker(Directory<T> directory)

Method Summary

Modifier and Type	Method and Description
Result	doInvoke(Invocation invocation, List<Invoker<T>> invokers, LoadBalance loadbalance)

Methods inherited from class org.apache.dubbo.rpc.cluster.support.AbstractClusterInvoker

destroy, getDirectory, getInterface, getRegistryUrl, getUrl, invoke, isAvailable, isDestroyed, toString

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.apache.dubbo.rpc.cluster.ClusterInvoker

hasProxyInvokers, isServiceDiscovery

Constructor Detail

ZoneAwareClusterInvoker

public ZoneAwareClusterInvoker(Directory<T> directory)

Method Detail

doInvoke

public Result doInvoke(Invocation invocation,
                       List<Invoker<T>> invokers,
                       LoadBalance loadbalance)
                throws RpcException

Throws:

RpcException