ZooKeeper

zookeeper是一个开源的分布式协调服务，由雅虎创建，是 Google Chubby 的开源实现。

分布式应用程序可以基于 ZooKeeper 实现诸如数据发布/订阅、负载均衡、命名服务、分布式协调/通知、集群管理、Master 选举、分布式锁和分布式队列等功能。

zookeeper功能点：

• 统一命名空间(Name Service)
• 配置推送 (Watch)
• 集群管理(Group membership)

参考资料：http://blog.csdn.net/liuwei0376/article/details/60868786

Spring cloud 使用 zookeeper

Service discovery and configuration management with Apache Zookeeper.

Spring Cloud Zookeeper provides Apache Zookeeper integrations for Spring Boot apps through autoconfiguration and binding to the Spring Environment and other Spring programming model idioms. With a few simple annotations you can quickly enable and configure the common patterns inside your application and build large distributed systems with Zookeeper. The patterns provided include Service Discovery and Distributed Configuration.