## Load the proxy module, if is not loaded already
<IfModule !proxy_module>
  LoadModule proxy_module modules/mod_proxy.so
</IfModule>

## Load the http proxy protocol module, if it is not loaded already
## This module enables load balancing between nodes 
<IfModule !proxy_http_module>
  LoadModule proxy_http_module modules/mod_proxy_http.so
</IfModule>

## Load the proxy balancer module, if it is not loaded already
## This module enables load balancing between nodes
<IfModule !proxy_balancer_module>
  LoadModule proxy_balancer_module modules/mod_proxy_balancer.so
</IfModule>

## Load the ajp proxy protocol module, if it is not loaded already
## This module enables the communication between Apache and Tomcat via AJP
<IfModule !proxy_ajp_module>
  LoadModule proxy_ajp_module modules/mod_proxy_ajp.so
</IfModule>

## Add an additional location to access the current load balancing configuration
## and statistics. Access is only allowed from localhost
## Only set the location if status module (mod_status) is loaded
<IfModule status_module>  
  <Location /balancer-manager>
    SetHandler balancer-manager

    Order Deny,Allow
    Deny from all
    Allow from 127.0.0.1
  </Location>
</IfModule>

## Configure the ‘proxy’ for the 
Data Integration Hub Operation Console instances
## Note that this is a static list, all the machines should be explicitly listed here
## The value for the attribute ‘route’ must exactly match that which is 
## used when configuring Tomcat 
<Proxy balancer://dx-gui-cluster>
  BalancerMember ajp://tomcat-a:18009 route=dxTomcat-A
  BalancerMember ajp://tomcat-b:18009 route=dxTomcat-B
</Proxy>
    
# Disable ProxyRequest as only the ProxyPass and ProxyPassReverse are used. 
# This prevents the server from processing requests from spammers (sending e-mails)
ProxyRequests Off
    
## Configure the forwarding of the request.
## Client browser must connect to <apache http server>:<port>/
dih-console/
## Note that it must be a single line
ProxyPass /
dih-console/ balancer://dx-gui-cluster/
dih-console/ stickysession=JSESSIONID|jsessionid
          
## Configure the return route from back-end to front
ProxyPassReverse /
dih-console/ balancer://dx-gui-cluster/
dih-console/

Delete the two lines beginning with
BalancerMember
. You can find them between the lines
<Proxy balancer://dx-gui-cluster>
and
</Proxy>
.
Insert lines, one for each Operation Console (Tomcat) server that is part of your cluster. Each line must have fields for a specific node (Tomcat instance), the machine name, and the
jvmRoute
value set for that specific Tomcat instance, for example,
Balancer-Member ajp://<operation console machine name>:18009 route=<jvmRoute value as defined in web.xml>