haproxy配置好了，可是沒有負載均衡。請問下哪裡出問題，謝謝。配置如下：
global
log 127.0.0.1 local0
log 127.0.0.1 local1 notice
maxconn 4096
uid 99
gid 99
daemon
defaults
log global
mode http
option httplog
option dontlognull
retries 3
option redispatch
maxconn 2000
contimeout 5000
clitimeout 50000
srvtimeout 50000
listen localhost 0.0.0.0:2008
stats uri /haproxy-stats
mode http
cookie SERVERID insert indirect
balance roundrobin
stats realm Haproxy\ statistics
option httpclose
#option httpchk GET /index.php
server app004 xx.xx.xx.xx:80 cookie app1inst1 check inter 2000 rise 2 fall 5
server app005 yy.yy.yy.yy:80 cookie app1inst1 check inter 2000 rise 2 fall 5
[火星人 ] haproxy配置好了，可是沒有負載均衡已經有362次圍觀
