MySQL
索引:https://blog.codinglabs.org/articles/theory-of-mysql-index.html
索引-ICP:https://blog.codinglabs.org/articles/index-condition-pushdown.html
Redis
锁:https://mp.weixin.qq.com/s/2P2-ujcdet9cUycokfyjHQ
Rabbitmq
概念:https://baijiahao.baidu.com/s?id=1732891548341088166&wfr=spider&for=pc