I want to limit the incoming HTTP2 connection in ingress gateway. but I don’t find the method to limit the incoming http2 connection number in both istio and envoy proxy doc, did I miss anything.
I can use DestinationRule->tcp->maxConnections to limit incoming TCP connection for TCP protocol (not for HTTP) because it is 1:1 from incoming to outgoing to upstream host for tcp connection.
But for HTTP2, the tcp maxConnections in DestinationRule is useless for the HTTP2 connection is limited by envoyproxy worker thread number. and this is not 1:1 between incoming and outgoing connection.
Thanks for any hint.