I have a HA Proxy server(1.4), thzt is load balacing FTP traffic to Six FTP servers.
I noticed that Load Balancer is dropping traffic after 50 sec, where as there was a valid ftp control port and Large file transfer was in progress over data port. I tried using tcpka in defaults section, but it didn't make any difference. In my particular case, using tcpka option on the backend side could have solved the issue of control channel timing out dut to inactivity. Am I missing something like setting tcp keeyalive time, interval and probe frequency setup on Ha Proxy Linux server.
