All new Registrations are manually reviewed and approved, so a short delay after registration may occur before your account becomes active.
TCP Handshake Takes Too Long / Too Many TCP Retransmission
We have a webserver for API and a game client. We process API requests from the game client but sometimes it takes way too long for a request to come back. Sometimes we have problems with latency, sometimes timeout or sometimes weird Unknown Errors. Here are some wireshark captures;
This one didn't return a response;
This one's response time was 3 seconds.
1185 ms;
When keep-alive is open we don't have a problem but it's not a solution. I mean there's still a TCP handshake problem.
And this is a typical "good" request.
Our back-end stack is like this; Haproxy with Let's Encrypt SSL Termination + Gunicorn3 + Flask
By the way here the Haproxy statistics for an unusual request that we're trying to solve;
Dec 10 13:58:01 localhost.localdomain haproxy[4469]: client_address = "****", path = "***", status = 200, Tr=31, Tw=0, Tc=0, Ta=31, sslVersion="TLSv1.3", Tt=4112, Td=0, Th=4081, Ti=0, Tq=4081, TR=0 Tr => response time Tw => total time spent in the queues waiting for a connection slot. Tc => time to establish TCP connection to server Ta => active time of requests (from %TR to end) Tt => total session duration time Td => Tt – (Tq + Tw + Tc + Tr) Th => connection handshake time (SSL, PROXY protocol) Ti => idle time before the HTTP request Tq => time to get the client request Tr => time to receive the full request from first byte
Update; When I try to connect my server via https://nameserverblabla.com the problem occurs; but when I try to connect my server via just IP adress, I don't have such problems.
I exported 2 pcapng files;
