Websoket connection drop after 5-15 minutes

[vitalii-b3]

Hello,

While testing the Envoy Gateway with WebSocket connections, I noticed that when I create 4,000 to 6,000 connections, they begin to drop after 5–15 minutes. It seems that the more connections I create, the sooner they start dropping. Incoming traffic is forwarded to Envoy Gateway from an AWS Load balancer.

I’ve tried adding connectionLimit to ClientTrafficPolicy as well as configuring circuitBreaker in BackendTrafficPolicy, but the issue still persists. I don’t see anything obvious in the logs. Perhaps there is another parameter that needs to be adjusted?

[arkodg]

maxConnections per pod are set to 50k, you can workaround that today by changing that limit with an EnvoyPatchPolicy or scaling pods
Relates to #3604

[vitalii-b3]

I never reached 50k connections. I start seeing connection drops at around 6k connections, so this must be something else. I also tried scaling Envoy Gateway pods but that didn't help