Clustercats For Coldfusion Components; Clustercats Server - MACROMEDIA COLDFUSION 4.5-ADMINISTRING COLDFUSION SERVER Manual

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If a server within a cluster fails or becomes unavailable and is no longer
transmitting an IP signal, another available server in the cluster will
automatically assume the IP address of the failed server. Subsequent HTTP
requests that are bound for the downed server will be redirected to the server
that has taken over for its failed counterpart. When the failed server is fixed and
comes back online, the server that has assumed the failed server's IP address
relinquishes it to the fixed server. This process is known as IP aliasing.
Automatic Administrator Notification
ClusterCATS lets you configure automatic e-mail-based alarms for a wide range
of failure types. This feature ensures that you can attend to failed servers
quickly and minimize server downtime. During regular business hours, you can
scan and read your e-mail as usual. For off-hour periods, you can configure
your pager to receive e-mail notifications for 24x7 notification capability.

ClusterCATS for ColdFusion Components

ClusterCATS consists of three components:

ClusterCATS Server

ClusterCATS Explorer
ClusterCATS Server Administrator
All of the components are installed on a machine when you run the ColdFusion Server
installation program and select the Load Balancing and High Availability install option.
You need to run the installation program on each server that will be part of your cluster
as well as on the Windows machine (NT, 98, or 95) from which you will use the
ClusterCATS Explorer to administer the cluster. Even if your clusters run on Solaris or
Linux platforms, obtain a Windows machine for running the ClusterCATS Explorer. If
you can't, you can use the Web-based Explorer in conjunction with included server
utilities to administer your clusters.
ClusterCATS Server
ClusterCATS Server runs on Windows NT, Sun Solaris, and Linux platforms. This
component must be installed on each server in your cluster. Each ClusterCATS Server
component monitors the status of all other Web servers in a cluster and tracks
application and transaction resource availability.
Each ClusterCATS Server component:
Intelligently manages HTTP load across Web servers
Proactively manages ColdFusion Server load
Provides automatic and transparent failover support to every server in your
cluster
Administering ColdFusion Server