Contents

Title and Copyright Information

List of Figures

List of Tables

Send Us Your Comments

Preface

1 Introduction to Oracle Web Cache

What is the Big Picture for Caching?

Oracle's Solution to Web Site Performance Issues

How Web Caching Works

Benefits of Web Caching

Features of Oracle Web Cache

Static and Dynamically Generated Content Caching

Cache Invalidation

Performance Assurance

Surge Protection of Application Web Servers

Load Balancing of Application Web Servers

Backend Failover

Application Web Server Binding

Security Features

Administration

Compression

2 Oracle Web Cache Concepts

Populating Oracle Web Cache

Cache Freshness and Performance Assurance

Caching Dynamically Generated Content

Multiple Versions of the Same URL

Personalized Attributes

Session Information

Session Tracking

Session-Encoded URLs

3 Deploying Oracle Web Cache

Caching Content for One Application Web Server

Forwarding HTTPS Requests

Load Balancing Requests Among Application Web Servers

Accelerating Portions of a Web Site

Using Oracle Web Cache Servers in a Failover Pair

Working with Firewalls

Deploying Oracle Web Cache Servers in a Distributed Network

4 Configuration and Administration Tools Overview

Oracle Web Cache Manager

Starting Oracle Web Cache Manager

Navigating Oracle Web Cache

Apply Changes and Cancel Changes Buttons

Status Messages

Navigator Pane

Right Pane

webcachectl Utility

Configuration and Administration Tasks at a Glance

5 Initial Setup and Configuration

Task 1: Start Oracle Web Cache

Task 2: Modify Security Settings

Task 3: Set Resource Limits

Task 4: Specify Web Site Settings

Task 5: Specify Caching Rules

Task 6: Restart Oracle Web Cache

6 Creating Rules for Cached Content

Cacheability Rules Overview

Cacheability Rule Syntax

Default Cacheability Rules

Configuring Cacheability Rules

Cacheability Rule Example

Configuring Expiration Rules

Configuring Rules for Multiple-Version URLs Containing Cookies

Configuring Rules for Multiple-Version URLs Containing HTTP Request Headers

Configuring Rules for Personalized Pages

Example: Personalized Page Configuration

Configuring Rules for Pages with Session Tracking

7 Configuration Considerations for Web Sites with Multiple Application Web Servers

Configuring Load Balancing

Binding a Session to an Application Web Server

8 Administering Oracle Web Cache

Starting and Stopping Oracle Web Cache

Invalidating Documents in the Cache

Setting the Invalidation Port Number

Sending Invalidation Messages

Manual Invalidation Using Telnet

Manual Invalidation Using Oracle Web Cache Manager

Automatic Invalidation Using Database Triggers

Automatic Invalidation Using Scripts

Automatic Invalidation Using Applications

Invalidation Examples

Example: Invalidating One Document

Example: Invalidating a Subtree of Documents

Example: Invalidating All Documents for a Web Site

Evaluating Event Logs

Format of the Event Log File

Event Log Examples

Example: Event Log with Startup Entries

Example: Event Log with Unsuccessful Startup Entries

Example: Event Log with an Invalidation Entry

Example: Event Log with an Invalidation Message Error

Example: Event Log with Shutdown Entries

Finding Errors in the Event Log

Configuring Event Logs

Evaluating Access Logs

Format of the Access Log File

Access Log Examples

Example: Access Log with Reload Entries

Example: Access Log with Wrong Path Entry

Example: Access Log with Status Code 404 Entry

Example: Access Log with Status Code 304 Entry

Configuring Access Logs

9 Monitoring Performance

Setting the Statistics Monitoring Port Number

Monitoring Overall Cache Health

Gathering Oracle Web Cache Performance Statistics

Gathering Application Web Server Performance Statistics

A Oracle Web Cache Directory Structure

B Oracle Web Cache Default Settings

C Invalidation Document Type Declaration

Invalidation Request DTD

Invalidation Response DTD

D Event Log Messages

Information Events

Warning Events

Error Events

E Troubleshooting Oracle Web Cache Configuration

Startup Failures

Port Conflicts

Cache Memory

Privileged Ports

Application Web Server Capacity

Wrong or Older Cached Content

Configuration Changes Made in Oracle Web Cache Manager

Glossary

Index