Hello fine people. Short time lurker, first time poster. Was on version 2.0.5 with CentOS 7.6 and everything was working fine with Exchange 2019. Upgraded to 2.2.3 and now when we put Exchange into maintenance mode HAProxy does not change status - it reports that all services are still up (L7OK/200).
Example backend: backend be_ex2019_oab mode http balance roundrobin option httpchk GET /oab/healthcheck.htm option log-health-checks http-check expect status 200 server <servername> <IP_Address>:443 check ssl inter 15s verify required ca-file <Path_to_crt_file> server <servername> <IP_Address>:443 check ssl inter 15s verify required ca-file <Path_to_crt_file> If I stop the app pool for a service in IIS, or stop all of IIS, HAProxy will properly show the service/services as down - as it gets a non 200 response (503 or 404). When putting the Exchange server into maintenance mode, there is no http response. When I check with a browser I get "ERR_HTTP2_PROTOCOL_ERROR" or "Secure Connection Failed". Basically no response. When I check with wget from the haproxy server I get "HTTP request sent, awaiting response... Read error (Connection reset by peer) in headers." Yet HAProxy is happy and continues to try to send mail to the down server - not good. Any Ideas? I just tried 2.2.4 and no joy. Thanks, -Luke
