Has anything changed in 21.03.0 regarding how websocket connections are handled?
With 21.03.0, subscriptions (over wss) have stopped working for us. It seems that the subscription request arrives successfully at dgraph but is closed almost immediately:
I0503 15:16:10.659605 15 poller.go:131] Subscription polling is started for the ID 5 I0503 15:16:10.677101 15 poller.go:272] Terminating subscription for the subscription ID 5
Our setup is the following:
<-- https/wss --> haproxy
<-- http/ws --> dgraph
The exact same setup is working fine with dgraph 20.11.3.
Help is very much appreciated. We are a bit clueless here.