activemq-artemis

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readme.html

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<html>
  <head>
    <title>ActiveMQ Artemis Clustering with JGroups Example</title>
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     <h1>ActiveMQ Artemis Clustering with JGroups Example</h1>

     <pre>To run the example, simply type <b>mvn verify</b> from this directory, <br>or <b>mvn -PnoServer verify</b> if you want to start and create the server manually.</pre>

     <p>This example demonstrates the working of a two node cluster using JGroups as the underlying topology broadcasting/discovery
     technique.</p>
     <p>We deploy a queue on to the cluster, then create a consumer on the queue on each node, and we create a producer on only one of the nodes.</p>
     <p>We then send some messages via the producer, and we verify that <b>both</b> consumers receive the sent messages
     in a round-robin fashion.</p>
     <p>This example uses JNDI to lookup the JMS Queue and ConnectionFactory objects. If you prefer not to use
     JNDI, these could be instantiated directly.</p>
     <p>To enable ActiveMQ Artemis to use JGroups you need to configure JGroups configuration file and make sure it is on the classpath
         by placing in the configuration directory, the file test-jgroups-file_ping.xml is the configuration used in this
     exaample</p>
     <p>You then configure the jgroups file used by the broadcast and discovery groups in the configuration along with the
         channel name which you want this cluster to share.</p>
     <pre class="prettyprint">
     <code>
   &lt;broadcast-groups&gt;
      &lt;broadcast-group name="my-broadcast-group">
         &lt;broadcast-period>5000&lt;/broadcast-period>
         &lt;jgroups-file>test-jgroups-file_ping.xml&lt;/jgroups-file>
         &lt;jgroups-channel>activemq_broadcast_channel&lt;/jgroups-channel>
         &lt;connector-ref>netty-connector&lt;/connector-ref>
      &lt;/broadcast-group>
   &lt;/broadcast-groups&gt;

   &lt;discovery-groups&gt;
      &lt;discovery-group name="my-discovery-group">
         &lt;jgroups-file>test-jgroups-file_ping.xml&lt;/jgroups-file>
         &lt;jgroups-channel>activemq_broadcast_channel&lt;/jgroups-channel>
         &lt;refresh-timeout>10000&lt;/refresh-timeout>
      &lt;/discovery-group>
   &lt;/discovery-groups&gt;
     </code>
     </pre>
     <p>For more information on ActiveMQ Artemis clustering in general, please see the clustering
     section of the user manual.</p>
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