我在heroku上有一个应用程序,它使用socket.io进行服务器 - 客户端通信。一切都很好。但是,一旦我将我的应用程序扩展到超过1个dyno,我就会收到几个http请求错误:
can't establish a connection to the server at wss://***/socket.io/?EIO=2&transport=websocket&sid=Hky6IHdckNADdU_tAACm. socket.io.js:4520
The connection to wss://***/socket.io/?EIO=2&transport=websocket&sid=Hky6IHdckNADdU_tAACm was interrupted while the page was loading. socket.io.js:4520
can't establish a connection to the server at wss://***/socket.io/?EIO=2&transport=websocket&sid=kWymv6ItJHBcUybZAAAA. socket.io.js:4520
The connection to wss://***/socket.io/?EIO=2&transport=websocket&sid=kWymv6ItJHBcUybZAAAA was interrupted while the page was loading. socket.io.js:4520
以及负载
HTTP status 400
{ code: 1, message: "Session ID unknown" }
我的socket.io正在使用redis适配器,因此应该正确共享状态。我通过连接到redis并发出以下命令来验证这一点:
PSUBSCRIBE socket.io#*
由于我可以看到数据在这个频道上回传并强制执行,我假设我的socket.io redis适配器工作正常。
任何人都知道如何使用超过1个dyno使socketoku工作在heroku上?
答案 0 :(得分:0)
您需要粘性负载平衡。 Socket.io有一篇很棒的文章,所以我会留给他们来解释这个话题: