打开httpd.conf文件，取消下面五行的注释，用以打开代理所需的.so支持模块。
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1 #LoadModule proxy_http_module modules/mod_proxy_http.so
2 #LoadModule proxy_connect_module modules/mod_proxy_connect.so
3 #LoadModule proxy_module modules/mod_proxy.so
4 #LoadModule proxy_ajp_module modules/mod_proxy_ajp.so
5 #LoadModule proxy_module modules/mod_proxy_blancer.so
取消虚拟主机的注释
#Include conf/extra/httpd-vhosts.conf

配置多站点集群的方法

ServerName html580.com
ServerAlias *.html580.com
ProxyIOBufferSize 8192
ProxyRequests Off
ProxyVia Full
#ProxyPass / http://localhost:8080/ smax=5 max=20 ttl=120 retry=300
#ProxyPass / balancer://proxy/ stickysession=jsessionid nofailover=On
ProxyPass / balancer://proxy/ lbmethod=bytraffic

BalancerMember http://localhost:8080/ loadfactor=15
BalancerMember http://localhost:8081/ loadfactor=10




ServerName html580.com
ServerAlias *.html580.com
ProxyIOBufferSize 8192
ProxyRequests Off
ProxyVia Full
ProxyPass / balancer://proxy1/ lbmethod=bytraffic

BalancerMember http://localhost:8082/ loadfactor=15
BalancerMember http://localhost:8083/ loadfactor=10

##ProxyPassReverse /bay balancer://proxy1/


ProxyPass / balancer此处的意思参照我前面写过的一篇博客。里面有详细的说明。