HaProxy配置

インストール
http://www.cnblogs.com/wang1988ming/archive/2012/10/24/2737507.html
 
設定

global
        log 127.0.0.1   local0 info    #    
        log 127.0.0.1   local1 notice
        maxconn 4096
        chroot /usr/local/haproxy
        uid root
        gid root
        daemon
        #debug
        #quiet
        pidfile /usr/local/haproxy/haproxy.pid

defaults
        log     global
        mode    http
        #option httplog
        option  dontlognull
        retries 3
        option redispatch
        maxconn         2000
        contimeout      5000
        clitimeout      50000
        srvtimeout      50000

listen  mysql
        bind 0.0.0.0:23306    #    
        mode tcp              #   TCP
        option mysql-check user haproxy   #mysql      root mysql     
        balance roundrobin            #    
        server mysql1 192.168.18.1:3306 weight 1 check  inter 1s rise 2 fall 2 #      check
        server mysql2 192.168.18.1:3307 weight 1 check  inter 1s rise 2 fall 2
listen stats     #  
           mode http
           bind 0.0.0.0:8888
           stats enable
           stats uri /dbs
           stats realm Global\ statistics
           stats auth admin:admin