34 lines
2.2 KiB
Text
Executable file
34 lines
2.2 KiB
Text
Executable file
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=== Multicast Network Setup
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Out of the box clustering support has a need to for IP Multicast. Multicast is a network broadcast protocol. This protocol
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is used at boot time to discover and join the cluster. It is also used to broadcast messages for the replication and invalidation
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distributed caches used by {{book.project.name}}.
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The clustering subsystem for {{book.project.name}} runs on the JGroups stack. Out of the box, the bind addresses for clustering are bound to a private network interface with a default IP address of 127.0.0.1.
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You'll have to edit your the _standalone-ha.xml_ or _domain.xml_ sections discussed in the <<fake/../../network/bind-address.adoc#_bind-address,Bind Address>> chapter.
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.private network config
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[source,xml]
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----
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<interfaces>
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...
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<interface name="private">
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<inet-address value="${jboss.bind.address.private:127.0.0.1}"/>
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</interface>
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</interfaces>
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<socket-binding-group name="standard-sockets" default-interface="public" port-offset="${jboss.socket.binding.port-offset:0}">
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...
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<socket-binding name="jgroups-mping" interface="private" port="0" multicast-address="${jboss.default.multicast.address:230.0.0.4}" multicast-port="45700"/>
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<socket-binding name="jgroups-tcp" interface="private" port="7600"/>
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<socket-binding name="jgroups-tcp-fd" interface="private" port="57600"/>
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<socket-binding name="jgroups-udp" interface="private" port="55200" multicast-address="${jboss.default.multicast.address:230.0.0.4}" multicast-port="45688"/>
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<socket-binding name="jgroups-udp-fd" interface="private" port="54200"/>
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<socket-binding name="modcluster" port="0" multicast-address="224.0.1.105" multicast-port="23364"/>
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...
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</socket-binding-group>
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----
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Things you'll want to configure are the `jboss.bind.address.private` and `jboss.default.multicast.address` as well as the ports of the services on the clustering stack.
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NOTE: It is possible to cluster {{book.project.name}} without IP Multicast, but this topic is beyond the scope of this guide. For more information, see link:{{book.appserver.doc_base_url}}{{book.appserver.version}}{{book.appserver.jgroups_ref.link}}[{{book.appserver.jgroups_ref.name}}] in the _{{book.appserver.admindoc.name}}_.
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