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Update _index.md #2856

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Update _index.md
shaowYe Nov 6, 2023
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Update _index.md
shaowYe Nov 9, 2023
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6 changes: 3 additions & 3 deletions ...overview/mannual/java-sdk/reference-manual/registry/multiple-registry/_index.md
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Expand Up @@ -125,12 +125,12 @@ RpcContext.getContext().setAttachment("registry_zone", "qingdao");

### 2.2 多注册中心地址聚合
```xml
<dubbo:registry address="multiple://127.0.0.1:2181?separator=;&reference-registry=zookeeper://address11?backup=address12,address13;zookeeper://address21?backup=address22,address23" />
<dubbo:registry address="multiple://127.0.0.1:2181?separator=#&reference-registry=zookeeper://address11?backup=address12,address13#zookeeper://address21?backup=address22,address23" />
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```

这里增加了一个特殊的 multiple 协议开头的注册中心，其中：
* `multiple://127.0.0.1:2181` 并没有什么具体含义，只是一个特定格式的占位符，地址可以随意指定
* `reference-registry` 指定了要聚合的注册中心集群的列表，示例中有两个集群，分别是 `zookeeper://address11?backup=address12,address13` 和 `zookeeper://address21?backup=address22,address23`，其中还特别指定了集群分隔符 `separator=";"`
* `reference-registry` 指定了要聚合的注册中心集群的列表，示例中有两个集群，分别是 `zookeeper://address11?backup=address12,address13` 和 `zookeeper://address21?backup=address22,address23`，其中还特别指定了集群分隔符 `separator="#"`

如下图所示，不同注册中心集群的地址会被聚合到一个地址池后在消费端做负载均衡或路由选址。

Expand Down Expand Up @@ -192,4 +192,4 @@ CRM 需同时调用中文站和国际站的 PC2 服务，PC2 在中文站和国
<dubbo:registry address="10.20.141.150:9090|10.20.154.177:9010" />
<!-- 引用服务 -->
<dubbo:reference id="helloService" interface="com.alibaba.hello.api.HelloService" version="1.0.0" />
```
```
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