消息队列端面-阿里云

【后端面经】【消息队列】22 | 消息队列：消息队列可以用来解决什么问题？-03 扩展性+可用性+事件驱动思想

扩展性扩展性就是：如果一个新的下游要接入进来有多难？在使用消息队列的时候，新的下游要接入，只需要自己去订阅消息就可以，完全不需要通知任何人。但是如果是同步调用，事情就麻烦很多，你需要下游提供RPC服务地址（定位信息），根据下游的API设计构造请求、处理...

【后端面经】【消息队列】22 | 消息队列：消息队列可以用来解决什么问题？-02 超时场景+性能问题

订单超时取消在电商里面，如果用户下单后一直没有支付，这个订单就会被取消，从而释放库存。订单超时取消在行业里有很多种做法，在这里仅介绍使用消息队列的解决方案。需要使用延时消息，在发送者发送以后，一段时间后，消费者才能消费的消息。消息队列也可以用于订单超时取消这种场景，在这种场景下，可以准备一个...

带您快速了解阿里云消息队列RocketMQ 5.0版

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【后端面经】【消息队列】22 | 消息队列：消息队列可以用来解决什么问题？-01

前置知识消息队列最鲜明的特性是异步、削峰和解耦。这也是消息队列的适用场景和用途。也有人说，日志处理和消息通讯可以看作是消息队列的具体落地案例，比如日志处理同时利用了消息队列的三个特性。消息通讯指的是即时通讯之类的工具，比如使用的微信、QQ。通讯工具主要利用的是异步和解耦特性，如果觉得通讯工具有...

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