Preface
Thisguide discusses adjustments you can make that may improve the performance of Sun Java
SystemWeb Server (henceforth known as Web Server). The guide provides tuning, scaling, and
sizingtips and suggestions; possible solutions to common performance problems; and data
fromscalability studies. It also addresses miscellaneous conguration and platform-specic
issues.

Who Should UseThis Book

Thisguide is intended for advanced administrators only. Be sure to read this guide and other
relevantserver documentation before making any changes. Be very careful when tuning your
server,and always back up your conguration les before making any changes.

BeforeYou ReadThis Book

WebServer can be installed as a stand-alone product or as a component of Sun JavaTM
EnterpriseSystem (Java ES), a software infrastructure that supports enterprise applications
distributedacross a network or Internet environment. If you are installing Web Server as a
componentof Java ES, you should be familiar with the system documentation at
http://docs.sun.com/coll/1286.3.

WebSer verDocumentation Set

TheWeb Server documentation set describes how to install and administer the Web Server.
Youcan access the Web Server documentation at http://docs.sun.com/coll/1653.1. For an
introductionto Web Server , refer to the books in the order in which they are listed in the
followingtable.
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