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关于ws-api找ws-gateway的问题
楼主好，你在两篇长连接网关里的描述有一段ws-api找ws-gateway的描述
用户连接
当ws-gateway向ws-api发布连接事件（带上gatewayIP、socketId以及uid），ws-api系统会保存以下几种关联。
关系一：socketId: gateway关联。将socketId与gatewayIP信息保存在redis中，数据结构为String，通过心跳维持key的TTL，一个连接会占用一个redis key。
关系二：uid: socketId关联。存储在redis，一个用户可能会维持多个websocket连接，比如pc的多窗口。数据结构为Set，存储socketId集合。一个用户会占用一个redis key。
根据业务可以衍生出更多的关系，比如群ID、直播间ID等。
但又有下面这个图
第七步写的是广播，我理解根据上面的描述 ws-api已经可以找到要推送的连接在哪一台 ws-gateway上面，直接grpc通知它去推送消息就可以了。
我理解的广播是 比方ws-api给所有的ws-gateway说我要给某个socketId连接推消息，然后所有的ws-gateway自己检查下这个socketId归不归自己管理再去处理
这块感觉有点前后没对上
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