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

PMI for external monitoring

If you decide to use third-party tools to monitor WebSphere, then the following list will serve as a quick guide to the PMI you should be monitoring to ensure the health of your system.

  • Average response time

    • Response time statistics indicate how much time is spent in various parts of WebSphere Application Server and might quickly indicate where the problem is

  • Number of requests (transactions)

    • Enables you to look at how much traffic is processed by WebSphere Application Server, helping you to determine the capacity that you have to manage

  • Number of HTTP sessions

    • The number of live HTTP sessions reflects the concurrent usage of your site

  • Web server and EJB thread pools

    • Thread pools might constrain performance due to their size

  • Database and connection pool size

    • The thread pools setting can be too small or too large, therefore causing performance problems

  • Java Virtual Memory (JVM)

    • Use the JVM metric to understand the JVM heap dynamics, including the frequency of garbage collection...