| <?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> |
