Using UDP, How to setup mod_cluster for standalone nodes which provide different service?
Environment
- Red Hat JBoss Enterprise Application Platform (EAP)
- 6.x
- Red Hat JBoss Enterprise Web Server (EWS)
- Apache httpd
- mod_cluster 1.2.x
Issue
- Using UDP, How to setup mod_cluster for standalone nodes which provide different service?
Resolution
UDP - Multicast
1.Architecture

2.Cluster Multicast IP

3.Apache Server Configuration
- 3.1. conf.d/mod_cluster.conf:
<IfModule manager_module>
Listen 6666
<VirtualHost *:6666>
ServerAdvertise on
EnableMCPMReceive
<Location /mod_cluster_manager>
SetHandler mod_cluster-manager
Order deny,allow
Deny from all
Allow from all
</Location>
</VirtualHost>
</IfModule>
- 3.2.conf/httpd.conf:
Listen 81
Listen 82
<VirtualHost *:81>
ProxyPass / balancer://webserver1/
</VirtualHost>
<VirtualHost *:82>
ProxyPass / balancer://webserver2/
</VirtualHost>
4.JBoss EAP 6.2
- 4.1.ts2,ts3 in cluster1 standalone-ha.xml:
<subsystem xmlns="urn:jboss:domain:modcluster:1.1">
<mod-cluster-config balancer="webserver1" advertise-socket="modcluster" connector="ajp" >
<dynamic-load-provider>
<load-metric type="busyness"/>
</dynamic-load-provider>
</mod-cluster-config>
</subsystem>
- 4.2.ts4 in cluster2 standalone-ha.xml:
<subsystem xmlns="urn:jboss:domain:modcluster:1.1">
<mod-cluster-config balancer="webserver2" advertise-socket="modcluster" connector="ajp" >
<dynamic-load-provider>
<load-metric type="busyness"/>
</dynamic-load-provider>
</mod-cluster-config>
</subsystem>
5.Start Script:
- 5.1.ts2 in cluster1 ... node1 (x.x.x.134)
./bin/standalone.sh -c=standalone-ha.xml -Djboss.bind.address.management=x.x.x.134 -Djboss.bind.address=x.x.x.134 -Djboss.node.name=ts2
- 5.2.ts3 in cluster1... node2 (x.x.x.228)
./bin/standalone.sh -c=standalone-ha.xml -Djboss.bind.address.management=x.x.x.228 -Djboss.bind.address=x.x.x.228 -Djboss.node.name=ts3
- 5.3.ts4 in cluster2 ... node3 (x.x.x.134)
./bin/standalone.sh -c=standalone-ha.xml -Djboss.bind.address.management=x.x.x.134 -Djboss.bind.address=x.x.x.134 -Djboss.node.name=ts4 -Djboss.socket.binding.port-offset=100 -Djboss.default.multicast.address=230.1.0.20 -Djboss.messaging.group.address=231.7.0.10
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