Chapter 20. Complete working example
Following are a set of example configuration files for a complete working example.
Proxy Server
A proxy server listening on localhost:
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 Listen 127.0.0.1:6666 <VirtualHost 127.0.0.1:6666> <Directory /> Order deny,allow Deny from all Allow from 127.0.0.1 </Directory> KeepAliveTimeout 60 MaxKeepAliveRequests 0 ManagerBalancerName mycluster ServerAdvertise On AdvertiseFrequency 5 </VirtualHost> <Location /mod_cluster-manager> SetHandler mod_cluster-manager Order deny,allow Deny from all Allow from 127.0.0.1 </Location>
JBoss Web Client Listener
Following are the listener definitions for JBOSS_EAP_DIST/server/PROFILE/deploy/jbossweb.sar/server.xml
.
<!-- Non-clustered mode --> <Listener className="org.jboss.web.tomcat.service.deployers.MicrocontainerIntegrationLifecycleListener" delegateBeanName="ModClusterService"/> <!-- Clustered mode Listener className="org.jboss.web.tomcat.service.deployers.MicrocontainerIntegrationLifecycleListener" delegateBeanName="HAModClusterService"/-->
JBoss Web Client Service Dependencies
Following are the required dependencies for the WebServer bean in JBOSS_EAP_DIST/server/PROFILE/deploy/jbossweb.sar/META-INF/jboss-beans.xml
. Add them to the existing dependencies.
<bean name="WebServer" class="org.jboss.web.tomcat.service.deployers.TomcatService"> <!-- ... --> <depends>ModClusterService</depends><!-- Non-clustered mode --> <!--depends>HAModClusterService</depends--><!-- Clustered mode --> <!-- ... --> </bean>
Example iptables Firewall Rules
Following are a set of example firewall rules using iptables
, for a cluster node on the 192.168.1.0/24 subnet.
/sbin/iptables -I INPUT 5 -p udp -d 224.0.1.0/24 -j ACCEPT -m comment --comment "mod_cluster traffic" /sbin/iptables -I INPUT 6 -p udp -d 224.0.0.0/4 -j ACCEPT -m comment --comment "JBoss Cluster traffic" /sbin/iptables -I INPUT 9 -p udp -s 192.168.1.0/24 -j ACCEPT -m comment --comment "cluster subnet for inter-node communication" /sbin/iptables -I INPUT 10 -p tcp -s 192.168.1.0/24 -j ACCEPT -m comment --comment "cluster subnet for inter-node communication" /etc/init.d/iptables save