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
Credits
About the Author
Acknowledgement
About the Reviewers
Preface

Dumping namespaces


To diagnose a problem, you might need to collect WebSphere JNDI information. WebSphere Application Server provides a utility that dumps the JNDI namespace. The dumpNamespace.sh script dumps information about the WebSphere namespace and is very useful when debugging applications when JNDI errors are seen in the WebSphere logs. You can use the utility to dump the namespace so you can see the JNDI tree that the name server (JNDI lookup service provider) is providing to the application. This tool is very useful in JNDI problem determination; for example, debugging incorrect JNDI resource mappings in the case where an application resource is not mapped correctly to a WebSphere configured JNDI resource or the application is using direct JNDI lookups when really it should be using indirect JNDI lookups. For this tool to work, the naming service for the WebSphere server host must be up when this utility is run. In the case of the WebSphere Application Server base, the naming...