Chapter 6: Creating Scalable And Highly Available Web Sites - MACROMEDIA COLDFUSION 4.5-ADMINISTRING COLDFUSION SERVER Manual

C 6
H A P T E R
Creating Scalable and Highly
Chapter 6
This chapter describes the concepts involved in achieving scalable and highly
available ColdFusion Web applications. The latter half describes ColdFusion's built-
in clustering technology, ClusterCATS, which provides intelligent load balancing and
failover capabilities. It includes procedures that explain how to create, optimize, and
administer your ClusterCATS server clusters.
Contents
Available Web Sites
What is Scalability?......................................................................................... 130
Issues Affecting Successful Scalability Implementations ........................... 132
What is Web Site Availability? ........................................................................ 144
Techniques for Creating Scalable & Highly Available Sites......................... 149
Introducing ClusterCATS for ColdFusion..................................................... 155
ClusterCATS for ColdFusion Components................................................... 158
Before You Install............................................................................................ 161
Installing ClusterCATS ................................................................................... 185
Creating Clusters ............................................................................................ 192
Configuring Load Balancing & High Availability Features.......................... 203
Performing Common Cluster Administration Tasks ................................... 223
Administering UNIX-based Clusters ............................................................ 231
Troubleshooting ............................................................................................. 267
Other Informational Resources..................................................................... 267