blob: b4b9e411ef4c5bd744971a5315baac4d5901cb79 [file] [log] [blame]
<?xml version="1.0"?>
<!--
Licensed to the Apache Software Foundation (ASF) under one
or more contributor license agreements. See the NOTICE file
distributed with this work for additional information
regarding copyright ownership. The ASF licenses this file
to you under the Apache License, Version 2.0 (the
"License"); you may not use this file except in compliance
with the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing,
software distributed under the License is distributed on an
"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
KIND, either express or implied. See the License for the
specific language governing permissions and limitations
under the License.
-->
<section xmlns="http://docbook.org/ns/docbook" version="5.0" xml:id="Java-Broker-Concepts-Virtualhost-Nodes">
<title>Virtualhost Nodes</title>
<para>A <emphasis>virtualhost node</emphasis> is a container for the virtualhost. It has exactly
one virtualhost.</para>
<para>A <emphasis>virtualhost node</emphasis> is backed by storage. This storage is used to record
the durable entities that exist beneath the virtualhost node (the virtualhost, queues, exchanges
etc).</para>
<para>When HA is in use, it is the virtualhost nodes of many Brokers that come together to form
the group. The virtualhost nodes together elect a master. When the high availability feature is
in use, the virtualhost node has <link linkend="Java-Broker-Concepts-RemoteReplicationNodes">remote replications nodes</link>. There is a remote replication node corresponding to each
remote virtualhost node that form part of the group.</para>
</section>