<VirtualHost *:*>
<Proxy balancer://mycluster>
    BalancerMember http://localhost:8080/sample
    BalancerMember http://localhost:8090/sample
    BalancerMember http://localhost:9080
</Proxy>
    ProxyPreserveHost On
    ProxyPass /test http://localhost:80
    ProxyPassReverse /test http://localhost:80
    ProxyPass / balancer://mycluster/
    ProxyPassReverse / balancer://mycluster/
</VirtualHost>

ProxyRequests On
 <Proxy *>
    Order deny,allow
    Allow from all
  </Proxy>
  <Proxy balancer://mycluster>
                BalancerMember http://localhost:8080/sample
                BalancerMember http://localhost:8090/sample
                BalancerMember http://localhost:9080
   </Proxy>

    ProxyPreserveHost On
    ProxyPass /test http://localhost:80
    ProxyPassReverse /test http://localhost:80
    ProxyPass / balancer://mycluster/
    ProxyPassReverse / balancer://mycluster/