Neil Client variables can't store complex data types like arrays and structures. However, you CAN convert these to WDDX variables and store the WDDX data as client variables.
Session variables are handy to time someone out of an application. You can do this with Client variables but you have to roll your own timeout mechanism. Either refine the CFID/CFTOKEN as cookies that expire when the browser closes or set a date/time client variable and check to see if the desired amount of time since the last access has been exceeded. Tom Nunamaker [EMAIL PROTECTED] General Partner RVC Enterprises / Aeromir.com Macromedia Certified Advanced ColdFusion 5.0 Developer http://www.morervs.com/ -----Original Message----- From: Neil H. [mailto:[EMAIL PROTECTED]] Sent: Saturday, January 05, 2002 9:11 PM To: CF-Talk Subject: Re: Clustering and CF variables. That is great but how do you know where to use each of these types. From what it sounds like why not just use client variables all the time? Thanks, Neil ----- Original Message ----- From: "Ken Wilson" <[EMAIL PROTECTED]> To: "CF-Talk" <[EMAIL PROTECTED]> Sent: Saturday, January 05, 2002 2:47 AM Subject: RE: Clustering and CF variables. > Sure, it's painless. > > The big difference is that Session Variables are stored in Ram on the server > where they are created. That's why it's so critical to lock session variable > reads/writes. That's also why you'll lose state when you end up on another > server in the cluster...servers can't share their Ram. > > Client variables can be stored in your choice of Cookie, Registry (Nooo!) or > Database. Since you're in a clustered environment the DB storage would seem > perfect for you since they'll be available to you regardless of which server > you hit. > > Ken > > > > -----Original Message----- > From: Neil H. [mailto:[EMAIL PROTECTED]] > Sent: Saturday, January 05, 2002 2:21 AM > To: CF-Talk > Subject: Re: Clustering and CF variables. > > > So you are saying I should change my variable from session to client. See > maybe I am just dumb but I never really understood the difference. Sure I > have seen different definitions but I never set down and thought about it. > Maybe someone has the "for dummies" version? > > Neil :) > > ----- Original Message ----- > From: "Ken Wilson" <[EMAIL PROTECTED]> > To: "CF-Talk" <[EMAIL PROTECTED]> > Sent: Saturday, January 05, 2002 2:19 AM > Subject: RE: Clustering and CF variables. > > > > Are you talking about Session Variables or Client Variables? Session > > variables are Memory resident on the server where they are created whereas > > Client Variables will be stored in the central DB that you have setup. > > > > Ken > > > > > > > > -----Original Message----- > > From: Neil H. [mailto:[EMAIL PROTECTED]] > > Sent: Saturday, January 05, 2002 12:31 AM > > To: CF-Talk > > Subject: Clustering and CF variables. > > > > > > I am using session variables. I have setup a DSN and a Client Variable > > Storage to the same database on each server. The code is identical. I am > > using Microsoft NLB. It works well except that my session variables > aren't > > carrying over. Any ideas? I know its broad but there has to be something > > obvious.... > > > > Neil > > > > > > ______________________________________________________________________ Why Share? Dedicated Win 2000 Server � PIII 800 / 256 MB RAM / 40 GB HD / 20 GB MO/XFER Instant Activation � $99/Month � Free Setup http://www.pennyhost.com/redirect.cfm?adcode=coldfusionc FAQ: http://www.thenetprofits.co.uk/coldfusion/faq Archives: http://www.mail-archive.com/[email protected]/ Unsubscribe: http://www.houseoffusion.com/index.cfm?sidebar=lists
