[3.7.1 Zookeeper（分布式协调系统）](3.30.Zookeeper%EF%BC%88%E5%88%86%E5%B8%83%E5%BC%8F%E5%8D%8F%E8%B0%83%E7%B3%BB%E7%BB%9F%EF%BC%89.md) [3.2 RabbitMQ（消息队列）](3.15RabbitMQ%EF%BC%88%E6%B6%88%E6%81%AF%E9%98%9F%E5%88%97%EF%BC%89.md)