mod_proxy settings with master server request for replicate

<VirtualHost *:80>
        ProxyRequests off

        ServerName domain.com

        <Proxy balancer://writecluster>
                # WebHead1 or master server
                BalancerMember http://10.176.42.144:80
                # WebHead2
                BalancerMember http://10.176.42.148:80

                # Security "technically we aren't blocking
                # anyone but this the place to make those
                # chages
                Order Deny,Allow
                Deny from none
                Allow from all

                # Load Balancer Settings
                # We will be configuring a simple Round
                # Robin style load balancer.  This means
                # that all webheads take an equal share of
                # of the load.
                ProxySet lbmethod=byrequests

        </Proxy>

        # balancer-manager
        # This tool is built into the mod_proxy_balancer
        # module and will allow you to do some simple
        # modifications to the balanced group via a gui
        # web interface.
        <Location /balancer-manager>
                SetHandler balancer-manager

                # I recommend locking this one down to your
                # your office
                Order deny,allow
                Allow from all
        </Location>

        # Point of Balance
        # This setting will allow to explicitly name the
        # the location in the site that we want to be
        # balanced, in this example we will balance "/"
        # or everything in the site.
        ProxyPass /balancer-manager !
        ProxyPass / balancer://writecluster/

    # Enable mod_rewrite
    RewriteEngine On
    # Send POST, PUT, and DELETEs to "write" balancer

    RewriteCond %{REQUEST_METHOD} ^(POST|PUT|DELETE)$
    RewriteRule ^/(.*)$http://10.176.42.144:80/$1 [P,QSA,L]


    # Modify HTTP response headers (e.g. Location)
    ProxyPassReverse / balancer://writecluster


</VirtualHost>