ClusterCats is used for load balancing and failover, it is a software based solution as opposed to using hardware. It plugs into the webserver to allow failover if a webserver fails. It is primarily HTTP based and always works in front of the webserver.
CFMX for J2EE is the very first version of ColdFusion to offer in-memory session replication. If you wanted session type failover in the past you were forced to use client variables and store them in an external database. CFMX Enterprise does not support session replication and neither did the very first release of CFMX for J2EE. It wasn't until the second release in December of 2002 that this feature was supported. Some engineering work had to be done to allow the data stored in the session to be serializable. So basically if you are running CFMX for J2EE on an application server that supports in-memory replication of session data (JRun, Weblogic and Websphere to name a few) then you have this option in CF. I go through a sample setup with JRun in the following article http://www.macromedia.com/devnet/mx/coldfusion/j2ee/articles/endtoend.html Brandon -----Original Message----- From: Howard Fore [mailto:[EMAIL PROTECTED] Sent: Saturday, March 29, 2003 6:00 PM To: [EMAIL PROTECTED] Subject: Re: [CFCDev] Page context bug workaround On Friday, March 28, 2003, at 12:57 PM, Sean A Corfield wrote: > See above - I don't think the multiple server instance / session > replication stuff is possible with CFMX Server, only CFMX for J2EE. > You can get a good sense of what the J2EE version gains you by reading > the FAQ: Well, the comparison chart says that multiple instance is limited to J2EE, whatever that will do for you. But isn't session replication one of the features of ClusterCats? That isn't limited to the J2EE version. -- Howard Fore, [EMAIL PROTECTED] "Whom the gods destroy, they first make mad" - Euripedes ---------------------------------------------------------- You are subscribed to cfcdev. To unsubscribe, send an email to [EMAIL PROTECTED] with the word 'unsubscribe cfcdev' in the message of the email. CFCDev is run by CFCZone (www.cfczone.org) and supported by Mindtool, Corporation (www.mindtool.com). ---------------------------------------------------------- You are subscribed to cfcdev. To unsubscribe, send an email to [EMAIL PROTECTED] with the word 'unsubscribe cfcdev' in the message of the email. CFCDev is run by CFCZone (www.cfczone.org) and supported by Mindtool, Corporation (www.mindtool.com).
