Hi all I am trying to determine the cause of an issue where the number of frontend connections is much higher than the number of backend connections.
I have one frontend, listening on port 443, and two backends, which send traffic to either port 5050 or 5051. The haproxy stats screen is showing many more frontend connections than backend (in one case, 113k on the frontend, 97k on one backend, and 3k on the other backend). netstat confirms that there are more connections to the frontend than to the sum of the backends (but it shows a higher number than haproxy reports): ubuntu@ip-10-10-7-135:~$ netstat -an |grep 5050|wc -l 2718 ubuntu@ip-10-10-7-135:~$ netstat -an |grep 5051|wc -l 88413 ubuntu@ip-10-10-7-135:~$ netstat -an |grep 10.10.7.135:443|wc -l 170442 My first thought was that the connection to the clients was being kept open to be reused for more HTTP/1.1 requests, but we have 'option forceclose' in the defaults section of the haproxy config. Any ideas? -- Patrick Kaeding pkaed...@launchdarkly.com
