# Pazpar2 load-balancing example using mod_proxy_load_balancer
# ==============================================================================
# This example uses pazpar2's serverIDs as the load-balancing routes 
# to keep pazpar2 sessions sticky.
# Pazpar2 serverID can be set in the pazpar2's server config file (server.xml)
# by placing an ID attribute on the 'server' element:
# <server id="myserver">..</server>
<VirtualHost *:80>
  ServerName satay.index
  ServerAlias satay 

  LogLevel debug
  CustomLog /var/log/apache2/pz2-lb-access.log combined
  ErrorLog /var/log/apache2/pz2-lb-error.log 

  <Proxy *>
    AddDefaultCharset off
    Order deny,allow
    Allow from all
  </Proxy>
  ProxyVia Off

  # 'route' has to match the configured pazpar2 server ID
  <Proxy balancer://pz2cluster>
    BalancerMember http://localhost:8004 route=metasearch1
    BalancerMember http://localhost:8005 route=metasearch2
    BalancerMember http://localhost:8006 route=metasearch3
    BalancerMember http://localhost:8007 route=metasearch4
  </Proxy>

  # route is resent in the 'session' param which has the form: 
  # 'sessid.serverid', understandable by the mod_proxy_load_balancer
  # this is not going to work if the client tampers with the 'session' param
  ProxyPass /pazpar2/search.pz2 balancer://pz2cluster lbmethod=byrequests stickysession=session nofailover=On

  # load balancer manager & statistic - for developing and testing only
  <Location /balancer-manager>
    SetHandler balancer-manager
    Order Deny,Allow
    Deny from all
  </Location> 

</VirtualHost>