As mentioned earlier, the sending side must agree to continually resend a message until it receives an ACK for that message.
正如前面提及的那样，发送端必须同意持续重新发送消息直到它收到该消息的ACK。
If you do not receive a response from the server after a certain amount of time, then resend the message.
如果在一定的时间以后您并没有收到服务器的响应，再重新发送消息。
If the request was a simple query request with no important side effects, then the requester could resend the message on a new connection (assuming one can be established).
如果请求只是一个没有重要副作用的简单查询请求，则请求方可以在新连接上重发消息(假设能够建立一个连接)。
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