JBoss Cluster

Before You Start

You have to configure the following setting for Web and JBoss.

web.xml

• According to JBoss' tutorial, it is required to add the following settings in WEB-INF/web.xml if you are doing clustering in JBoss.

<?xml version="1.0"?>
<web-app  xmlns="http://java.sun.com/xml/ns/javaee"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
    version="2.5">
    
    <distributable/>

</web-app>

jboss-web.xml

• Create jboss-web.xml file under under XXX/WEB-INF folder(XXX is like ZKsandbox in the war file) if fileupload component is used in your app.

For example,

<jboss-web>
    <context-root>warFileName</context-root> <!-- context-root should be the same with war file name -->    
    <replication-config>
        <cache-name>standard-session-cache</cache-name>
        <replication-trigger>SET_AND_GET</replication-trigger>
        <replication-granularity>SESSION</replication-granularity>
        <replication-field-batch-mode>true</replication-field-batch-mode>
        <use-jk>true</use-jk>
        <max-unreplicated-interval>30</max-unreplicated-interval>
        <snapshot-mode>INSTANT</snapshot-mode>
        <snapshot-interval>1000</snapshot-interval>
    </replication-config>
    <max-active-sessions>5</max-active-sessions>
    <passivation-config>
        <use-session-passivation>true</use-session-passivation>
        <passivation-min-idle-time>60</passivation-min-idle-time>
        <passivation-max-idle-time>600</passivation-max-idle-time>
    </passivation-config>
</jboss-web>

Setting up JBoss 5.1.0 Clusters with Apache Load Balance

After you have done the settings above, please follow JBoss' official document to set up a JBoss Clustered Server here.