Create a new file jk.conf in the folder //conf. The loading of “jk.conf” must be added in Apache configuration file httpd.conf.

By this file, the order is given to Apache to load the module (mod_jk). It gives the location of the log file and its format, and selects the data in the URL that will be redirected to JBOSS (line JkMount

/configuratorUI/*).

Example of jk.conf:

# Load mod_jk module

LoadModule jk_module modules/mod_jk.so

# Where to find workers.properties

JkWorkersFile /etc/httpd/conf.d/workers.properties

# Where to put jk logs

JkLogFile /var/log/httpd/mod_jk.log

# Set the jk log level [debug/error/info]

JkLogLevel info

# Select the log format

JkLogStampFormat "[%a %b %d %H:%M:%S %Y] "

# JkOptions indicate to send SSL KEY SIZE,

JkOptions +ForwardKeySize +ForwardURICompat -ForwardDirectories

# JkRequestLogFormat set the request format

JkRequestLogFormat "%w %V %T"

# Send servlet for context

JkMount /cameleonResources/* loadbalancer

JkMount /cameleonUI/* loadbalancer

JkMount /catalogWS/* loadbalancer

JkMount /commonUI/* loadbalancer

JkMount /configuratorWS/* loadbalancer

JkMount /modelingUI/* loadbalancer

JkMount /eximpWS/* loadbalancer

JkMount /cart/* loadbalancer

JkMount /cartDesigner/* loadbalancer

JkMount /CWE/* loadbalancer

JkMount /CCS/* loadbalancer

JkMount /scheduler/* loadbalancer

Add the file mod_jk.so in the folder //modules.

The mod_jk.so is a library that is in charge of redirecting Apache to JBOSS/Tomcat.

Create the new file workers.properties (that is referenced in your jk.conf file) in the folder /<apache directory>/conf.

This file defines:

• the « worker » in sense of JK = JBOSS,
• the communication protocol between Apache and JBOSS/Tomcat (ajp13),
• the host of JBOSS/Tomcat.

  Example of workers.properties:

# Define the first node...

worker.node1.port=JBossAJPPort1

worker.node1.host=JBossIPAddress1

worker.node1.type=ajp13

worker.node1.lbfactor=1

worker.node1.cachesize=10

# Define the second node…

worker.node2.port=JBossAJPPort2

worker.node2.host=JBossIPAddress2

worker.node2.type=ajp13

worker.node2.lbfactor=1

worker.node2.cachesize=10

# Now define the load-balancing behavior

worker.loadbalancer.type=lb

worker.loadbalancer.balanced_workers=node1,node2

worker.loadbalancer.sticky_session=1

# Define the status worker

worker.jkstatus.type=status

worker.list=loadbalancer,jkstatus

The CPQ configuration files like cameleon.properties that are in folder /<cpq directory>/conf must be modified. In order to:

• Modify/replace the cameleon.url.public parameter to make it point to the Apache URL.
• The sharing context parameter has to be modified as follows:
• cart.sharedContext.externalMode=DB

The JBoss nodes parameterization is done via the file:

.. \jboss\standalone\configuration standalone-cameleon.xml

• Add a property in the system-properties section to identify the Apache worker node defined in the chapter 7.1.3.

  <system-properties>

  …

  <property name="jvmRoute" value="node1"/>

  …

  </system-properties>

• In the web subsystem, add the AJP connector

  <subsystem xmlns="urn:jboss:domain:web:1.4" default-virtual-server="default-host" native="false">

  ...

  <connector name="ajp" protocol="AJP/1.3" scheme="http" socket-binding="ajp"/>

  ...

  </subsystem>

Start all the nodes, access with several browsers to the application by using the application URL that is now http://IP_Of_APACHE/configuratorUI/…

All the nodes must be used to “load balance” the different users.