客户机输出所有有关通知的信息。
The client outputs all the information about the notification.
因此，理想的选择是通知客户机服务器收到了消息，并在稍后使用一个不同的传输通道发送应答。
So the ideal option is to notify the client that the server received the message and send the reply later using a different transport channel.
这使它具有较高的效率，但也意味着客户机事件通知被延迟到直到发生另一个不相关的客户机调用。
This makes it highly efficient but means that client notification of events is delayed until the client makes an unrelated call.
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