Dawn, Looking at this from outside, I would suggest that session persistence creates the overheads, so if you are running a traditional application that needs to maintain a single session per user (e.g a green screen or UniOjects application) you are probably limited to several thousand users on current hardware. There are a number of sites over here that run those sort of numbers.
If you adopt a 'pure database' model (i.e. not an embedded database running the application) a la SQL Server or Oracle, where you are just farming data in response to requests or calling atomic stored procedures, and using some form of responder architecture, I cannot see why there should be any real scaling limits. After all, we run hundreds of users through RedBack on hardware that is not particularly massy or fast. Brian -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Dawn M. Wolthuis Sent: 23 April 2004 14:50 To: [EMAIL PROTECTED] Subject: How far can U2 scale? At what point in the life of application software would it be so large that you could not (or would not want to) support it with your existing UniData or UniVerse database? Is there a point where you would be better served by DB2 or Oracle, for example due to the scale you are working with? I hear people talk about moving way from U2 in order to do ODBC and use standard industry tools (and most find that the grass is not greener for those purposes), but I don't hear about switching because of running into scaling issues. However, we sometimes think of PICK as addressing small-to-mid size businesses and RDBMS folks sometimes think of their products as scaling the best. So, what's the cut-off for U2? Thanks. --dawn Dawn M. Wolthuis Tincat Group, Inc. www.tincat-group.com Take and give some delight today. -- u2-users mailing list [EMAIL PROTECTED] http://www.oliver.com/mailman/listinfo/u2-users ________________________________________________________________________ This email was checked by MessageLabs SkyScan before entering Microgen. ________________________________________________________________________ This email was checked on leaving Microgen for viruses, similar malicious code and inappropriate content by MessageLabs SkyScan. DISCLAIMER This email and any attachments are confidential and may also be privileged. If you are not the named recipient, please notify the sender immediately and do not disclose the contents to any other person, use it for any purpose, or store or copy the information. In the event of any technical difficulty with this email, please contact the sender or [EMAIL PROTECTED] Microgen Information Management Solutions http://www.microgen.co.uk -- u2-users mailing list [EMAIL PROTECTED] http://www.oliver.com/mailman/listinfo/u2-users