Web Caching
Web Caching By Duane Wessels
June 2001
Pages: 318

| Table of Contents | Index | Sample Chapter | Colophon

Table of Contents

  1. Chapter 1 Introduction

    1. Web Architecture

    2. Web Transport Protocols

    3. Why Cache the Web?

    4. Why Not Cache the Web?

    5. Types of Web Caches

    6. Caching Proxy Features

    7. Meshes, Clusters, and Hierarchies

    8. Products

  2. Chapter 2 How Web Caching Works

    1. HTTP Requests

    2. Is It Cachable?

    3. Hits, Misses, and Freshness

    4. Hit Ratios

    5. Validation

    6. Forcing a Cache to Refresh

    7. Cache Replacement

  3. Chapter 3 Politics of Web Caching

    1. Privacy

    2. Request Blocking

    3. Copyright

    4. Offensive Content

    5. Dynamic Web Pages

    6. Content Integrity

    7. Cache Busting and Server Busting

    8. Advertising

    9. Trust

    10. Effects of Proxies

  4. Chapter 4 Configuring Cache Clients

    1. Proxy Addresses

    2. Manual Proxy Configuration

    3. Proxy Auto-Configuration Script

    4. Web Proxy Auto-Discovery

    5. Other Configuration Options

    6. The Bottom Line

  5. Chapter 5 Interception Proxying and Caching

    1. Overview

    2. The IP Layer: Routing

    3. The TCP Layer: Ports and Delivery

    4. The Application Layer: HTTP

    5. Debugging Interception

    6. Issues

    7. To Intercept or Not To Intercept

  6. Chapter 6 Configuring Servers to Work with Caches

    1. Important HTTP Headers

    2. Being Cache-Friendly

    3. Being Cache-Unfriendly

    4. Other Issues for Content Providers

  7. Chapter 7 Cache Hierarchies

    1. How Hierarchies Work

    2. Why Join a Hierarchy?

    3. Why Not Join a Hierarchy?

    4. Optimizing Hierarchies

  8. Chapter 8 Intercache Protocols

    1. ICP

    2. CARP

    3. HTCP

    4. Cache Digests

    5. Which Protocol to Use

  9. Chapter 9 Cache Clusters

    1. The Hot Spare

    2. Throughput and Load Sharing

    3. Bandwidth

  10. Chapter 10 Design Considerations for Caching Services

    1. Appliance or Software Solution

    2. Disk Space

    3. Memory

    4. Network Interfaces

    5. Operating Systems

    6. High Availability

    7. Intercepting Traffic

    8. Load Sharing

    9. Location

    10. Using a Hierarchy

  11. Chapter 11 Monitoring the Health of Your Caches

    1. What to Monitor?

    2. Monitoring Tools

  12. Chapter 12 Benchmarking Proxy Caches

    1. Metrics

    2. Performance Bottlenecks

    3. Benchmarking Tools

    4. Benchmarking Gotchas

    5. How to Benchmark a Proxy Cache

    6. Sample Benchmark Results

  1. Appendix A Analysis of Production Cache Trace Data

    1. Reply and Object Sizes

    2. Content Types

    3. HTTP Headers

    4. Protocols

    5. Port Numbers

    6. Popularity

    7. Cachability

    8. Service Times

    9. Hit Ratios

    10. Object Life Cycle

    11. Request Methods

    12. Reply Status Code

  2. Appendix B Internet Cache Protocol

    1. ICPv2 Message Format

    2. Opcodes

    3. Option Flags

    4. Experimental Features

  3. Appendix C Cache Array Routing Protocol

    1. Membership Table

    2. Routing Function

    3. Examples

  4. Appendix D Hypertext Caching Protocol

    1. Message Format and Magic Constants

    2. HTCP Data Types

    3. HTCP Opcodes

  5. Appendix E Cache Digests

    1. The Cache Digest Implementation

    2. Message Format

    3. An Example

  6. Appendix F HTTP Status Codes

    1. 1xx Intermediate Status

    2. 2xx Successful Response

    3. 3xx Redirects

    4. 4xx Request Errors

    5. 5xx Server Errors

  7. Appendix G U.S.C. 17 Sec. 512. Limitations on Liability Relating to Material Online

  8. List of Acronyms

  9. Appendix Bibliography

    1. Books and Articles

    2. Request For Comments

  10. Colophon

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