Hi, so i have about 6 app servers running apache and 1 load balancer running haproxy 1.4.10
the issue i see lately is that even if one of the app server is having issues such as running out of memory or disk space etc..the load balancer keeps send the traffic to that app server should it not detect if the app server is unreachable or not responding then do not send traffic to the server? here is snippet of my configuration global log 127.0.0.1local0 log 127.0.0.1local1 notice maxconn 20000 ulimit-n 65536 user haproxy group haproxy daemon stats socket /var/run/haproxy/haproxy.sock mode 0600 level admin defaults logglobal optiontcplog optiondontlognull retries3 option redispatch option http-server-close timeout connect 5s timeout client 180s timeout server 180s listen webcluster xx.xx.xx.38:80 mode http stats enable stats hide-version stats auth admin:admin4prod2 stats uri /admin?stats balance source cookie BALANCEID insert indirect nocache option httclose option forwardfor except 127.0.0.1 option httpchk HEAD /check.txt HTTP/1.0 server app1 zz.zz.54.59:80 cookie A check server app2 zz.zz.47.148:80 cookie B check server app3 zz.zz.56.172:80 cookie C check server app4 zz.zz.60.110:80 cookie D check server app5 zz.zz.58.15:80 cookie E check server app6 zz.zz.37.134:80 cookie F check listen domain_cluster_https zz.zz.42.188:8000 mode http balance roundrobin cookie SERVERID insert indirect nocache option httclose option httpchk HEAD /check.txt HTTP/1.0 option forwardfor except zz.zz.42.188 server app1 zz.zz.54.59:80 cookie s1 weight 1 maxconn 5000 check server app2 zz.zz.47.148:80 cookie s2 weight 1 maxconn 5000 check server app3 zz.zz.56.172:80 cookie s3 weight 1 maxconn 5000 check server app4 zz.zz.60.110:80 cookie s4 weight 1 maxconn 5000 check server app5 zz.zz.58.15:80 cookie s5 weight 1 maxconn 5000 check server app6 zz.zz.37.134:80 cookie s6 weight 1 maxconn 5000 check acl trusted_source src 127.0.0.1 reqidel ^Server-Protocol: i was under the impression that haproxy would check for the check.txt (highlighted in red) file which i have placed on the webroot of the server /var/www/check.txt (its and empty file) so this morning when app4 was running out of memory, i heard from users that they were getting connection timeouts..?? any thing i need to change in the configuration?
