Using mod_cluster with JBoss AS 7.1 cluster
In this blog we will see how to use mod_cluster with jboss as 7.1.
The mod_cluster integration is done via the modcluster subsystem which is present in standalone configuration file.
For working with mod_cluster we need to configure it in both Apache Web Server and jboss as 7.
This will help in session replication in case of jboss as 7
Apache side configuration
- Download the required binaries of mod_cluster for your OS from below link,http://www.jboss.org/mod_cluster/downloads/1-1-0.html
- Copy following .so files to your “<Apache_Home>/modules” folder.
mod_proxy.so
mod_proxy_ajp.so
mod_slotmem.so
mod_manager.so
mod_proxy_cluster.so
mod_advertise.so
mod_proxy_ajp.so
mod_slotmem.so
mod_manager.so
mod_proxy_cluster.so
mod_advertise.so
3. Edit your httpd.conf (i.e. /conf/http.conf) and add following lines
to it.However these setting is a sample, you might have to make
changes as per your own environment.
###############
mod_cluster Setting###############
LoadModule slotmem_module modules/mod_slotmem.so
LoadModule manager_module modules/mod_manager.so
LoadModule proxy_cluster_module
modules/mod_proxy_cluster.so
LoadModule advertise_module modules/mod_advertise.so
<VirtualHost 10.10.10.10:80>
<Directory />
Order
deny,allow
Allow from
all
</Directory>
<Location /mod_cluster_manager>
SetHandler
mod_cluster-manager
Order
deny,allow
Allow from
all
</Location>
KeepAliveTimeout 60
MaxKeepAliveRequests 0
ManagerBalancerName testcluster
AdvertiseFrequency 5
</VirtualHost>
############### mod_cluster Setting###############
where 10.10.10.10:80 is IP:Port on which apache is running
NOTE:
We need to Comment Out the following module mod_proxy_balancer.so
in “httpd.conf” file, this is been done because we are now using mod_proxy_cluster.so instead
of mod_proxy_balancer.so
|
#LoadModule
proxy_balancer_module modules/mod_proxy_balancer.so |
- Restart Apache.
JBoss side configuration
Now we will see changes we need to make to jboss sideStandalone
- First we need to create a jboss cluster as explained in :http://jboss-as-7-abhishekmathur.blogspot.in/2013/05/jboss-as-71-clustering.html
- Give a unique name in the server element,(present in standalone.conf file) as shown below .
standalone-node1
<server name="standalone-node1" xmlns="urn:jboss:domain:1.2">
standalone-node2
<server name="standalone-node2" xmlns="urn:jboss:domain:1.2">
3. Now we need to add the instance-id
attribute in web subsystem as shown below in both the standalone
nodes.
<subsystem xmlns="urn:jboss:domain:web:1.1" default-virtual-server="default-host" instance-id="${jboss.node.name}" native="false">
<connector name="http" protocol="HTTP/1.1" scheme="http" socket-binding="http"/>
<connector name="ajp" protocol="AJP/1.3" scheme="http" socket-binding="ajp"/>
.
.
.
</subsystem>
4. Last you just have to add the proxy-list in the attribute in
mod-cluster-config of modcluster subsystem, which would be having
IP Address and Port on which your Apache server is running so that
JBoss server can communicate with it, as shown below in both the
standalone nodes.
<subsystem xmlns="urn:jboss:domain:modcluster:1.0">
<mod-cluster-config advertise-socket="modcluster" proxy-list="10.10.10.10:80">
.
.
.
</mod-cluster-config>
</subsystem>
where 10.10.10.10:80 is the Ip:Port of the Apache web server.
Now start the Apache web and jboss as server and deploy application in both,
to see the desired result
