Book Image

JBoss AS 5 Performance Tuning

Book Image

JBoss AS 5 Performance Tuning

Overview of this book

Today's organizations need to deliver faster services to a large set of people and businesses. In order to survive this challenge, enterprises need to optimize the performance of their application server along with its components and hardware. Writing faster applications is no longer just an option for your products; it's an imperative requirement, which you cannot ignore. JBoss AS 5 Performance Tuning will teach you how to deliver fast applications on the JBoss Application Server and Apache Tomcat, giving you a decisive competitive advantage over your competitors. You will learn how to optimize the hardware resources, meeting your application requirements with less expenditure.The performance of Java Enterprise applications is the sum of a set of components including the Java Virtual Machine configuration, the application server configuration (in our case, JBoss AS), the application code itself and ultimately the operating system. This book will show you how to apply the correct tuning methodology and use the tuning tools that will help you to monitor and address any performance issues. By looking more closely at the Java Virtual Machine, you will get a deeper understanding of what the available options are for your applications and how their performance will be affected. You will learn about thread pool tuning, EJB tuning, JMS tuning, Enterprise Java Beans, and the Java Messaging Service. The persistence layer and JBoss Clustering service each have a chapter dedicated to them as they are two of the most crucial elements to configure correctly in order to run a fast application. You will also learn how to tune your web server, enabling you to configure and develop web applications that get the most out of the embedded Tomcat web server.
Table of Contents (17 chapters)
JBoss AS 5 Performance Tuning
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
A Tuned Mind
Index

Chapter 8. Tomcat Web Server Tuning

7th Circle of Hell: Suicide. In this ring are the architects who were unable to see beyond their nose, guilty of increasing the Web thread count, instead of fixing a bottleneck in the EJB classes.

Earlier in client-server computing, each application had its own client program and it worked as a user interface and needed to be installed on each user's personal computer.

An upgrade to the server part of the application would typically require an upgrade to the clients installed on each user workstation, adding to the support cost and decreasing productivity.

As the World Wide Web and the Internet gained popularity, so did the desire to set up applications virtually accessible from everywhere. This gave rise to a new paradigm where the browser became a popular medium for accessing enterprise applications, thus eliminating the need to install any library on the client machine.

However, one of the consequences of this shift of paradigm was that this new computing...