I am about to pull my hair out with this. For some time now we have been using a simple config with HAproxy. It was using the listen method in TCP mode and routes traffic to two different servers. It works fine except the check method was only able to check if the web server was up and serving request ok. In this case if our Windows IIS server/service was working. We have several web apps on the server and if one of them is not started or hung then HAproxy still routes traffic as it was only checking that IIS was serving ok. We needed to build a more logical config that could test individual URLs for health checks as well as do HTTP to HTTPS redirects. The old config worked fine with our sites minus the health check issue. The new config works perfectly for the health check issue but certain tasks in our website/webapp just hang and never finish or go to an error message. The old config did not cause this. If I access the site via localhost or its direct IP bypassing HAproxy it still works fine. Running HAproxy 1.5.2 Ubuntu 14.04 OLD CONFIG Code: global log 127.0.0.1 local0 log 127.0.0.1 local1 notice #log loghost local0 info maxconn 2048 #chroot /usr/share/haproxy user haproxy group haproxy daemon #debug #quiet defaults log global mode http option httplog option dontlognull retries 3 option redispatch maxconn 2048 timeout connect 5000 timeout client 5000 listen MP-DEV-WEBFARM 192.168.0.128:443 mode tcp option tcpka balance source option ssl-hello-chk option httpchk HEAD /check.txt HTTP/1.0 option tcplog server MP-DEV-WEBFARM-1 192.168.0.120:443 weight 1 check port 80 inter 2000 fall 2 rise 3 server MP-DEV-WEBFARM-2 192.168.0.121:443 weight 1 check port 80 inter 2000 fall 2 rise 3 option abortonclose timeout server 120000 listen stats 0.0.0.0:9600 mode http balance stats uri /haproxy_stats stats realm HAProxy\ Statistics stats auth admin:****** stats admin if TRUE NEW CONFIG Code: global log 127.0.0.1 local0 log 127.0.0.1 local1 notice #log loghost local0 info maxconn 2048 #chroot /usr/share/haproxy user haproxy group haproxy daemon #debug #quiet defaults log global mode http option httplog option dontlognull retries 3 option redispatch maxconn 2048 timeout connect 5000 timeout client 5000 listen MP-DEV-WEBFARM 192.168.0.128:443 mode tcp option tcpka balance source option ssl-hello-chk option httpchk HEAD /check.txt HTTP/1.0 option tcplog server MP-DEV-WEBFARM-1 192.168.0.120:443 weight 1 check port 80 inter 2000 fall 2 rise 3 server MP-DEV-WEBFARM-2 192.168.0.121:443 weight 1 check port 80 inter 2000 fall 2 rise 3 option abortonclose timeout server 120000 listen stats 0.0.0.0:9600 mode http balance stats uri /haproxy_stats stats realm HAProxy\ Statistics stats auth admin:****** stats admin if TRUE With the new config certain pages/actions in our webapp just hang and do nothing. I was looking at FireBug in my browser and HAproxy logs and it just looks like HAproxy just thinks the page is done loading and stops when it's not done. Any help would be great. Thanks
