I am running HAProxy version 1.5-dev16 to load balance traffic to a pair of web servers. That part of the service is running great. I attempted to add a proxy to serve the HTTP statistics page and am receiving "503 Service Unavailable" messages. (I also run a separate instance of HAProxy version 1.4.8 on which the statistics page is working fine.) I have tried several different configurations. Here is what gets logged when I attempt to access the statistics page.
Feb 20 11:23:14 localhost haproxy[9350]: 1.2.3.4:54080 [20/Feb/2014:11:23:14.616] adminstats adminstats/<NOSRV> 1/-1/-1/-1/+1 503 +212 SC-- 15/0/0/0/0 0/0 "GET /haproxy_stats HTTP/1.1" Feb 20 11:23:14 localhost haproxy[9350]: 1.2.3.4:54081 [20/Feb/2014:11:23:14.867] adminstats adminstats/<NOSRV> 0/-1/-1/-1/+0 503 +212 SC-- 22/0/0/0/0 0/0 "GET /favicon.ico HTTP/1.1" After adding the listen section for the HTTP statistics proxy I reloaded HAProxy using the "-sf" argument rather than doing a cold start. (I wanted to mention that in case it makes a difference somehow.) Below is my current configuration. I suspect it is something in my configuration which is causing the problem but I am stumped. Any help would be appreciated. global log 127.0.0.1 local0 log 127.0.0.1 local1 notice maxconn 8192 user haproxy group haproxy daemon spread-checks 5 stats socket /var/run/haproxy/haproxy.sock mode 0600 level admin defaults mode http log global option httplog option dontlognull option logasap retries 3 option redispatch maxconn 8192 timeout connect 30000 timeout client 30000 timeout server 30000 option contstats frontend https-in option httplog option httpclose option forwardfor reqadd X-Forwarded-Proto:\ https bind 1.2.3.4:443,5.6.7.8:443 ssl crt /.../cert.pem ca-file /.../bundle.pem default_backend servers frontend http-in option httplog option httpclose option forwardfor reqadd X-Forwarded-Proto:\ http bind 1.2.3.4:80,5.6.7.8:80 default_backend servers backend servers option httpchk option httplog option httpclose balance roundrobin # Load Balancing algorithm cookie COOKIE insert indirect nocache server one 9.10.11.12:80 cookie ONE weight 10 maxconn 1024 check server two 9.10.11.13:80 cookie TWO weight 10 maxconn 1024 check server three 9.10.11.14:80 cookie THREE weight 0 maxconn 1024 check disabled listen adminstats 0.0.0.0:8080 mode http balance timeout client 5000 timeout connect 4000 timeout server 30000 stats uri /haproxy_stats stats realm HAProxy\ Statistics stats auth user:password -- patrick Patrick Landry University of Louisiana at Lafayette Director, University Computer Support Services
