Book Image

WebSphere Application Server 7.0 Administration Guide

By : Steve Robinson
Book Image

WebSphere Application Server 7.0 Administration Guide

By: Steve Robinson

Overview of this book

As an administrator you need a secure, scalable, resilient application infrastructure to support the developers building and managing J2EE applications and Service Oriented Architecture services. WebSphere application server, a product from IBM, is optimized to ease administration and improve runtime performance. It helps you run applications and services in a reliable, secure, and high-performance environment to ensure business opportunities are not lost due to application downtime. It's easy to get started and tame this powerful application server when you've got this book to hand. This administration guide will help you provide an innovative, performance-based foundation to build, run, and manage J2EE applications and SOA services, offering the highest level of reliability, security, and scalability. This book will take you through the different methods for installing WebSphere application server and demonstrate how to configure and prepare WebSphere resources for your application deployments. During configuration you will be shown how to administer your WebSphere server standalone or using the new administrative agent, which provides the ability to administer multiple installations of WebSphere application server using one single administration console. WebSphere security is covered in detail showing the various methods of implanting federated user and group repositories. The facets of data-aware and message-aware applications are explained and demonstrated giving the reader real-world examples of manual and automated deployments. Key administration features and tools are introduced, which will help a WebSphere administrator manage and tune their WebSphere implementation and application for success.
Table of Contents (16 chapters)
WebSphere Application Server 7.0 Administration Guide
About the Author
About the Reviewers

Dynamic caching

By enabling the dynamic cache service, you can improve performance. The dynamic cache service improves performance by caching the output of servlets, commands, web services, and JavaServer Pages (JSP) files. The dynamic cache service works within the application server JVM, intercepting calls to cacheable objects. For example, it intercepts calls to a servlet and serves the response (Java objects) either from the cache or it caches the object once it has been created allowing the cached version to be called on the next call.

To enable the dynamic cache service, open the Administrative console and click Servers | Application Servers | server | Container Services | Dynamic cache service as shown below.

There is a penalty associated with caching, as the first time an object is cached it can take some time to store the object in the cache. During first use, the application might suffer performance degradation, until all objects are cached. It is recommended that during performance...