死信队列
死信,简单理解就是因为种种原因,无法被消费的消息。
有死信,自然就有死信队列。当一个消息在一个队列中变成死信消息之后,就会被重新发送到另一个交换器中,这个交换器就是DLX(Dead Letter Excha…
补一下之前的题目 Exercise 1.1 Below is a sequence of expressions. What is the result printed by the interpreter in response to each expression? Assume that the sequence is to be evaluated in the order in which it is presented. Exercise 1.2 Translate the …