With this simple example, you did not have to deal with any core group bridge configuration.
对于这个简单的示例，您不需要处理任何核心组桥接配置。
As you can see, a new bridge configuration is being created for the BridgeFactory that you defined in ConnectorConfigFactory.
可以看到，为ConnectorConfigFactory中定义的BridgeFactory创建一个新的桥接配置。
If the proxy server and the target clusters are located in different core groups, then core group bridge configuration will be necessary (see Resources).
如果代理服务器和目标集群位于不同的核心组，那么必须设置核心组桥接配置。(参见参考资料)。
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