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Including a comparaison: JBoss Tomcat Clustering versus Apache Tomcat Clustering

Web tier clustering is an important part of J2EE scalability and high availability. Traditionally, load balancing is done via front end load balancer (either software- or hardware-based) while the session replication (for fail-over) is done by the web container. Here we have done a benchmark study of http session replication using JBoss Application Server (AS). We also compare JBoss performance against the Tomcat standalone. Please note that JBoss web container also uses embedded Tomcat in non-clustered mode. They differ only in the clustering solution module. For details of both implementation, please refer to both the JBoss and Tomcat documentation. The HttpSession replication performance comparisons are based on JBoss AS 4.0.3SP1 (with JBossCache 1.2.4 and JGroups 2.2.9). Previously, we have published results based on JBoss AS 4.0.2 (August 2005). But the current version has been found to provide dramatic performance improvement.

JBoss Application Server is the #1 most widely used Java application server on the market. A J2EE certified platform for developing and deploying enterprise Java applications, Web applications, and Portals, JBoss Application Server provides the full range of J2EE 1.4 features as well as extended enterprise services including clustering, caching, and persistence.

Designed for use with the JBoss Enterprise Middleware System (JEMS), JBoss Eclipse IDE is a series of integrated Eclipse plug-ins for building quality software applications. JBoss Eclipse IDE extends Eclipse and enables programmers to develop, deploy, test, and debug their JEMS-based applications without leaving the IDE. By simplifying the development lifecycle, JBoss Eclipse IDE enables IT organizations to deliver greater value in less time. Faster development, combined with a zero-cost software license, greatly reduces overall costs of creating enterprise applications.

Get familiar with the Sun Ajax4jsf open source framework, which adds Asynchronous JavaScript + XML (Ajax) capabilities to JSF applications without having to write any JavaScript code. This tutorial will show you how to build an Apache Geronimo applications using JavaServer Faces and Ajax functionality with Ajax4jsf.

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