zookeeper 做配置中心问题咨询

Question

项目里用zk做配置中心，

我想问问有经验的人，每次读取配置都是从zk里读取，这样从zk里更改了配置，可以实时的读取到最新配置

另一个是从zk里读取的配置，存放到redis缓存里，给缓存设置一个过期时间，这样改了配置，不能立马读取到最近配置，

那种比较好？是要根据业务对实时性要求，我倾向选择第一个

或者还有更好的方案吗？

Answer 1

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Answer 2

某某电商的配置服务是这样做的：缓存在客户端，如果zk配置更改了则通知客户端修改配置（订阅者），这样做的好处就是就算你的配置中心挂掉了，也不会影响你的配置，不需要为zk配置中心的可用性担心。