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mod_proxy_balancer requires the service of mod_proxy, and it provides load balancing for all the supported protocols.


mod_proxy_balancer has following scheduling algorithm

  • mod_lbmethod_byrequests
  • mod_lbmethod_bytraffic
  • mod_lbmethod_bybusyness
  • mod_lbmethod_heartbeat


Followings are the example of a balancer configuration:

<Proxy "balancer://mycluster">
    BalancerMember "http://192.168.1.50:80"
    BalancerMember "http://192.168.1.51:80"
</Proxy>
ProxyPass        "/test" "balancer://mycluster"
ProxyPassReverse "/test" "balancer://mycluster"

Followings are another example of balancer configuration:

<VirtualHost *:80>
        ServerName cdn.its-newid.net

        ProxyRequests   Off
        ProxyVia        Off
        ProxyPreserveHost       On

        <Proxy *>
                Require all granted
        </Proxy>

       <Proxy balancer://mycluster>
           BalancerMember http://192.168.10.7:80 route=1 connectiontimeout=1
           BalancerMember http://192.168.10.8:80 route=2 connectiontimeout=1

           ProxySet lbmethod=byrequests
           ProxySet stickysession=ROUTEID
       </Proxy>
       ProxyPass               "/"     "balancer://mycluster"
       ProxyPassReverse        "/"     "balancer://mycluster"

        DocumentRoot "/pub/cdn.qsok.com/"
        CustomLog /var/log/httpd/cdn.its-newid.net-access.log combined
        ErrorLog /var/log/httpd/cdn.its-newid.net-error.log
</VirtualHost>
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