global maxconn 100000 log /dev/log local0 notice defaults mode tcp log global option redispatch retries 3 timeout connect 5s timeout client 1210s timeout server 1210s listen stats :8642 mode http stats enable stats uri / stats auth admin:admin frontend bbs bind :28000 default_backend bbs backend bbs balance leastconn server bbs-app_9801 bbs-server-1:9801 weight 1 maxconn 4096 check inter 1000 server bbs-app_9801 bbs-server-2:9801 weight 1 maxconn 4096 check inter 1000 server bbs-mysql-master_3306 bbs-mysql-server:3306 check inter 1000 backup
原文：http://rickyhui.blog.51cto.com/10570875/1680686