服务发现系统SkyDNS.zip

上传者: 39841882 | 上传时间: 2020-04-30 03:15:42 | 文件大小: 62KB | 文件类型: ZIP
SkyDNS 是一个相对新的项目它采用Go语言编写,使用了RAFT用于一致性,并提供了HTTP和DNS两种客户端API.它与Etcd和Spotify的DNS模型有点类似,事实上它采用了和Etcd,go-raft同样的RAFT实现。 SkyDNS服务器聚簇在一起,使用RAFT协议,并选择出一个主服务。SkyDNS服务器暴露不同的结点用于服务注册和发现。 为了注册服务,服务会使用基于HTTP的API创建带有TTL的入口。服务必须周期性地通过心跳报告它们的状态。SkyDNS也使用了SRV记录,但它对记录做了扩展用于支持服务版本、环境和地区。 为了发现,客户端使用DNS并检索它们需要连接的服务的SRV记录。客户端需要实现负载均衡或者失效备援,并且周期性的缓存和刷新服务位置数据。 与Spotify使用DNS不同的是,SkyDNS支持服务的动态注册,并且能够在不依赖像Zookeeper或者Etcd的情况下动态注册。 如果你使用了docker,skydock,你应当去检查一下你的容器与SkyDNS自动的集成。


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