About This Guide

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Overview

Sun ONE Application Server 7 is a J2EE 1.3 specification-compatible application server which supports Java Web Services standards as well as standard HTTP server programming facilities. Three editions of the application server are offered to suit a variety of needs for both production and development environments:

Platform Edition
Standard Edition
Enterprise Edition

Platform Edition

Platform Edition forms the core of the Sun ONE Application Server 7 product line. This, free for production use, product offers a high-performance, small-footprint J2EE 1.3 specification-compatible runtime environment that is ideally suited for basic operational deployments, as well as for embedding in third-party applications. Web-services ready, the Platform Edition includes technologies derived from the Sun ONE Web Server, Sun ONE Message Queue, and the J2EE Reference Implementation.

Platform Edition deployments are limited to single application server instances (i.e. single virtual machines for the Java platform (“Java virtual machine” or “JVM™”)). Multi-tier deployment topologies are supported by the Platform edition, but the web server tier proxy does not perform load balancing. In Platform Edition, administrative utilities are limited to local clients only.

Platform Edition is integrated into Solaris 9.

Standard Edition

The Standard Edition layers enhanced, remote-management capabilities on top of the Platform Edition. Enhanced management capabilities, remote command-line, and web-based administration are all included as part of the Standard Edition. This edition also includes the ability to partition web application traffic through a web server tier proxy. Standard Edition supports configuration of multiple application server instances (JVMs) per machine.

Enterprise Edition

Enterprise Edition enhances the core application server platform with greater high availability, load balancing, and clustering capabilities suited for the most demanding J2EE-based application deployments. The management capabilities of the Standard Edition are extended in Enterprise Edition to account for multi-instance and multi-machine deployments.

Clustering support includes easy-to-configure groups of cloned application server instances to which client requests can be load balanced. Both external load balancers and load balancing web tier-based proxies are supported by this edition. HTTP session, stateful session bean instance, and Java Message Service (JMS) resource failover are included in the Enterprise Edition. The patented “Always On” highly available database technology forms the basis for the HA persistence store in the Enterprise Edition.

For more product information, see the Sun ONE Application Server page at http://www.sun.com/software/products/appsrvr/home_appsrvr.html.

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Using the Documentation

The Sun ONE Application Server documentation is available as online files in Portable Document Format (PDF) and Hypertext Markup Language (HTML) formats at:

http://docs.sun.com/

The following table lists tasks and concepts described in the Sun ONE Application Server documentation. The left column lists the tasks and concepts, and the right column lists the corresponding document.

Table 1  Sun ONE Application Server Documentation Roadmap 

For information about	See the following
Late-breaking information about the software and the documentation	Release Notes
Supported platforms and environments	Platform Summary
Introduction to the application server, including new features, evaluation installation information, and architectural overview.	Getting Started Guide
Installing Sun ONE Application Server and its various components (sample applications, Administration interface, Sun ONE Message Queue).	Installation Guide
Creating and implementing J2EE applications that follow the open Java standards model on the Sun ONE Application Server 7. Includes general information about application design, developer tools, security, assembly, deployment, debugging, and creating lifecycle modules.	Developer’s Guide
Creating and implementing J2EE applications that follow the open Java standards model for web applications on the Sun ONE Application Server 7. Discusses web application programming concepts and tasks, and provides sample code, implementation tips, and reference material.	Developer’s Guide to Web Applications
Creating and implementing J2EE applications that follow the open Java standards model for enterprise beans on the Sun ONE Application Server 7. Discusses EJB programming concepts and tasks, and provides sample code, implementation tips, and reference material.	Developer’s Guide to Enterprise JavaBeans Technology
Creating clients that access J2EE applications on the Sun ONE Application Server 7	Developer’s Guide to Clients
Creating web services	Developer’s Guide to Web Services
J2EE features such as JDBC, JNDI, JTS, JMS, JavaMail, resources, and connectors	Developer’s Guide to J2EE Features and Services
Creating custom NSAPI plugins	Developer’s Guide to NSAPI
Performing the following administration tasks: Using the Administration interface and the command line interface Configuring server preferences Using administrative domains Using server instances Monitoring and logging server activity Configuring the web server plugin Configuring the Java Messaging Service Using J2EE features Configuring support for CORBA-based clients Configuring database connectivity Configuring transaction management Configuring the web container Deploying applications Managing virtual servers	Administrator’s Guide
Editing server configuration files	Administrator’s Configuration File Reference
Configuring and administering security for the Sun ONE Application Server 7 operational environment. Includes information on general security, certificates, and SSL/TLS encryption. HTTP server-based security is also addressed.	Administrator’s Guide to Security
Configuring and administering service provider implementation for J2EE CA connectors for the Sun ONE Application Server 7. Includes information about the Administration Tool, DTDs and provides sample XML files.	J2EE CA Service Provider Implementation Administrator’s Guide
Migrating your applications to the new Sun ONE Application Server 7 programming model from the Netscape Application Server version 2.1, including a sample migration of an Online Bank application provided with Sun ONE Application Server	Migrating and Redploying Server Applications Guide
Using Sun ONE Message Queue.	The Sun ONE Message Queue documentation at: http://docs.sun.com/?p=/coll/S1_MessageQueue_30

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Documentation Conventions

This section describes the typographical conventions used throughout this guide:

General Conventions
Conventions Referring to Directories

General Conventions

The following general conventions are used in this guide:

File and directory paths are given in UNIX^� format (with forward slashes separating directory names). For Windows versions, the directory paths are the same, except that backslashes are used to separate directories.
URLs are given in the format:

http://server.domain/path/file.html

In these URLs, server is the server name where applications are run; domain is your Internet domain name; path is the server’s directory structure; and file is an individual filename. Italic items in URLs are placeholders.

Font conventions include:
The monospace font is used for sample code and code listings, API and language elements (such as function names and class names), file names, pathnames, directory names, and HTML tags.
Italic type is used for code variables.
Italic type is also used for book titles, emphasis, variables and placeholders, and words used in the literal sense.
Bold type is used as either a paragraph lead-in or to indicate words used in the literal sense.
Installation root directories for most platforms are indicated by install_dir in this document. Exceptions are noted in "Conventions Referring to Directories".

By default, the location of install_dir on various product distributions are:

Solaris 8 non-package-based Evaluation installations:

user-specified directory/sun/appserver7

Solaris unbundled, non-evaluation installations:

/opt/SUNWappserver7

Windows, all installations:

C:\Sun\AppServer7

For the platforms listed above, default_config_dir and install_config_dir are identical to install_dir. See "Conventions Referring to Directories" for exceptions and additional information.

Instance root directories are indicated by instance_dir in this document, which is an abbreviation for the following:

default_config_dir/domains/domain/instance

UNIX-specific descriptions throughout this manual apply to the Linux operating system as well, except where Linux is specifically mentioned.

Conventions Referring to Directories

By default, when using the Solaris 8 and 9 package-based installation and the Solaris 9 bundled installation, the application server files are spread across several root directories. These directories are described in this section.

For Solaris 9 bundled installations, this guide uses the following document conventions to correspond to the various default installation directories provided:
install_dir refers to /usr/appserver/, which contains the static portion of the installation image. All utilities, executables, and libraries that make up the application server reside in this location.
default_config_dir refers to /var/appserver/domains, which is the default location for any domains that are created.
install_config_dir refers to /etc/appserver/config, which contains installation-wide configuration information such as licenses and the master list of administrative domains configured for this installation.
For Solaris 8 and 9 package-based, non-evaluation, unbundled installations, this guide uses the following document conventions to correspond to the various default installation directories provided:
install_dir refers to /opt/SUNWappserver7, which contains the static portion of the installation image. All utilities, executables, and libraries that make up the application server reside in this location.
default_config_dir refers to /var/opt/SUNWappserver7/domainswhich is the default location for any domains that are created.
install_config_dir refers to /etc/opt/SUNWappserver7/config, which contains installation-wide configuration information such as licenses and the master list of administrative domains configured for this installation.

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Product Support

If you have problems with your system, contact customer support using one of the following mechanisms:

The online support web site at:

http://www.sun.com/supportraining/

The telephone dispatch number associated with your maintenance contract

Please have the following information available prior to contacting support. This helps to ensure that our support staff can best assist you in resolving problems:

Description of the problem, including the situation where the problem occurs and its impact on your operation
Machine type, operating system version, and product version, including any patches and other software that might be affecting the problem
Detailed steps on the methods you have used to reproduce the problem
Any error logs or core dumps

This guide is intended for advanced administrators of Sun ONE Application Server. This guide helps you tune Sun ONE Application Server for maximum performance and reliability. It is recommended that you backup your configuration files, before changing the configuration settings on Sun ONE Application Server.

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What’s in this Guide

This guide discusses the various subsystems, features, and tools inside the Sun ONE Application Server and how to tune them for maximum performance and reliability. This guide is intended for server administrators, J2EE developers, network administrators, and evaluators.

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What You Should Know

Before you begin, you should already be familiar with the following topics:

Internet and World Wide Web
Java programming
J2EE application model
Application Servers
Solaris™ or Windows NT/2000 operating systems

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How This Guide is Organized

This guide is organized as follows:

“About Sun ONE Application Server” gives an overview of Sun ONE Application Server features and components.

“About Sun ONE Application Server Performance” describes the techniques and processes involved in tuning Sun ONE Application Server.

“Tuning Your Application” describes practices and configuration settings you can use with your applications to ensure maximum performance.“Tuning Sun ONE Application Server” describes how you can configure the application server for your needs.“Tuning the Java Runtime System” describes how you can configure the Java Virtual Machine to work optimally with the Sun ONE Application Server.

“Tuning Operating System” describes how you can configure your operating system to work optimally with the Sun ONE Application Server.

“Common Performance Problems” describes common performance problems users face when the Sun ONE Application Server is used as a classic web server.An “Index” is provided for quick reference lookups to key performance terms.

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Copyright 2003 Sun Microsystems, Inc. All rights reserved.