Hello all,
I am currently experiencing some strange behavior on my production environment.

• I run a Phoenix LiveView App
• Server is FreeBSD with haproxy upfront

The behavior

• If you navigate the liveView app via navigation items that trigger link navigate, this is most of the time fine. But every ~22 seconds the socket response is extremely slow and response, event with nearly zero change in the socket is about 4 to 6 seconds.
• you can give it a try here: https://portal.devpunx.com (of course you have to click on the navigation for at leas 22 seconds… no need to click different nav-items… just keep clicking “home” or sth.)
• I do not have this on local, so it’s probably an environment effect.

What I tried to debug:

• I checked and changed timeouts on Server and OS but that seems not to cause the issue
• Also I checked if sockets break and reconnect, but they stay stable
• So it basically is slowed down for some reason.
• What makes me stutzig is the fact, that it occurs roughly every 22 seconds independently of if you click a lot or not so much.

Has anyone any idea how to approach that and how to debug?

Kind regards!