Book Image

IBM WebSphere Application Server 8.0 Administration Guide

By : Steve Robinson
Book Image

IBM WebSphere Application Server 8.0 Administration Guide

By: Steve Robinson

Overview of this book

Administrators require a secure, scalable, and resilient application infrastructure to support the development of JEE applications and SOA services. IBM’s WebSphere Application Server is optimized for this task, and this book will ensure that you can utilize all that this tool has to offer with the exciting new features of IBM WebSphere Application Server 8.0.IBM WebSphere Application Server 8.0 Administration Guide is fully revised with details of the new functionality of WebSphere Application Server 8.0, including the new installation GUI, managed deployment, and HPEL. With this book in hand, you will be equipped to provide an innovative, performance-based foundation to build, run, and manage JEE applications and SOA services.IBM WebSphere Application Server 8.0 has been tuned for higher performance out of the box, and numerous enhancements have been made to give you as an administrator more options for increasing runtime performance. This book will allow you to utilize all of these features, including HPEL logging and disabling WebSphere MQ Messaging. You will be taken through how to configure and prepare WebSphere resources for your application deployments, and by the end of IBM WebSphere Application Server 8.0 Administration Guide, you will be able to successfully manage and tune your WebSphere 8.0 implementation.

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IBM WebSphere Application Server 8.0 Administration Guide
Steve Robinson
Oct, 2011 | 496 pages
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Table of Contents (19 chapters)
IBM WebSphere Application Server 8.0 Administration Guide
IBM WebSphere Application Server 8.0 Administration Guide
Credits
Credits
About the Author
About the Author
Acknowledgement
Acknowledgement
About the Reviewers
About the Reviewers
www.PacktPub.com
www.PacktPub.com
Preface
Preface
Free Chapter
1
WebSphere Application Server 8.0: Product Overview
WebSphere Application Server 8.0: Product Overview
What is WebSphere Application Server?
Why choose IBM WebSphere Application Server?
Enhancements and capabilities
Architecture and internals
Inside WebSphere Application Server
WebSphere Application Server terminology
WebSphere Application Server products
Supported OS
Summary
2
Installing WebSphere Application Server
Installing WebSphere Application Server
Installation planning
Preparation and prerequisites
Graphical installation
Administrative console
Uninstalling WAS
Silent installation
Silent profile creation
Summary
3
Deploying your Applications
Deploying your Applications
Deploying an application
Starting and stopping your applications
Data access applications
Deploying a data access application
Using the application
Business-level applications
Monitored deployments
Summary
4
Security
Security
JEE security
Global security
Federated repositories
Security domains
LTPA overview
Summary
5
Administrative Scripting
Administrative Scripting
Automation
The ws_ant tool
The wsadmin tool
Configuring applications using properties files
Configuring monitored deployment with properties
Managing system configuration using properties files
Command assistance
Summary
6
Server Configuration
Server Configuration
WAS file structure
XML configuration files
Important properties files
Logs and trace
High Performance Extensible Logging (HPEL)
JVM settings
Class loaders
Summary
7
WebSphere Messaging
WebSphere Messaging
Java messaging
JMS API
WebSphere messaging
SiBus message reliability
WebSphere MQ Messaging
Disabling WebSphere MQ
WebSphere MQ link
Configuring MQ link
Summary
8
Monitoring and Tuning
Monitoring and Tuning
Using Tivoli Performance Viewer
PMI for external monitoring
Request metrics
Dynamic caching
JVM tuning
Summary
9
Administrative Features
Administrative Features
The administrative agent
Removing the administrative agent
IBM HTTP Server
The WebSphere plugin
Configuring SSL for IHS and the WebSphere plugin
Configuring virtual hosts
Summary
10
Administration Tools
Administration Tools
Dumping namespaces
EAR expander
IBM Support Assistant
Summary
11
Product Maintenance
Product Maintenance
Understanding updates
Product update types
Update process overview
Preparing for updates
Creating a backup
Locating updates
Update Installers
Silent updates
Logs
Troubleshooting tips
Summary
Index
Index

JVM settings

An important part of configuring your application server JVM is through the use of JVM parameters. Since an application server is based on the Java Virtual Machine (JVM), we can pass certain parameters to the JVM to set specific runtime settings. To view and change the JVM configuration for an application server's process, use the Java Virtual Machine page of the Administrative console.

Note

It is also possible to use the wsadmin tool with Jython to change JVM configuration through scripting. However, this is beyond the scope of this book.

Changing JVM settings using the Administrative console

  1. In the Administrative console, go to Servers | Server Types | WebSphere application servers | <server_name>.

  2. Then, under Server Infrastructure, go to Java and process management | Process definition, select Java Virtual Machine (application server), and then set the field values for the JVM settings as required and click OK:

  3. Click Save to retain the changes. You must restart the application...

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