How to detect idle connection? about ws HOT 6 CLOSED

If you're ok to work only with linux you can use epoll

see example number 4
https://github.com/eranyanay/1m-go-websockets

If you want it to be cross platform use libuv like libraries for go
This way the linux epoll will fire an event for on close, and you can handle all the connections and close events in a single go routin

with epoll + gobwas I successfully managed to achieve 1.5 million connections on 2 cores

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@hxt365 we implemented a watch dog mechanism with an in-memory cache to monitor idle connections and close them.
Briefly, On each request received we update timestamp for that descriptor and a garbage collector to close the idle connection.

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I can think a few ways:

https://golang.org/pkg/net/#TCPConn.SetKeepAlive
https://golang.org/pkg/net/#TCPConn.SetKeepAlivePeriod

https://golang.org/pkg/net/#TCPConn.SetDeadline
https://golang.org/pkg/net/#TCPConn.SetReadDeadline
https://golang.org/pkg/net/#TCPConn.SetWriteDeadline

https://godoc.org/github.com/gobwas/ws#NewPingFrame
https://godoc.org/github.com/gobwas/ws#NewPongFrame

https://godoc.org/github.com/gobwas/ws/wsutil#ControlHandler.HandlePing
https://godoc.org/github.com/gobwas/ws/wsutil#ControlHandler.HandlePong

Not sure which one will be more suited to you...

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@KromDaniel the problem is we don't receive close signal from the other side, we have many stalled connections which we dont receive any event for a long period, and for now we have a GC to detect those connections and close them, but i was wondering why just SetDeadline is not working on the connections with netpoll.Desc attached.

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Closing this for now, please reopen if question is still active.

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Hi, have you got a desire solution? if yes, can you share?

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