Uniqueness of [cart] (was Re: Number of cars in cart...)

This WebDNA talk-list message is from

2004

It keeps the original formatting. numero = 58269
interpreted = N
texte = At 11:43 AM -0400 6/8/04, John Peacock wrote:>...No. If you have a busy site, the system will automatically append a uniquifier to the end of the mostly-timestamp-based cart. I know, I know... uniqueness of cart has been hashed to death a million times over. But this thought got into my head during a long drive the other day when I had nothing to think about besides WebDNA.What happens to the uniqueness of the cart when the server's date changes, say during the switch from daylight savings to standard time (or vice versa)? Maybe there's some internal database of cart values so that even if a cart value was handed out after the server's time was set back an hour WebDNA would still know to add the sequential portion of the cart that would still make it unique. But what if during the one hour of overlap during the time change the server was also intentionally or unintentionally restarted? Wouldn't the internal mechanism of keeping track of uniqueness be lost?~joe-------------------------------------------------------------This message is sent to you because you are subscribed to the mailing list .To unsubscribe, E-mail to: To switch to the DIGEST mode, E-mail to Web Archive of this list is at: http://webdna.smithmicro.com/ Associated Messages, from the most recent to the oldest:

At 11:43 AM -0400 6/8/04, John Peacock wrote:>...No. If you have a busy site, the system will automatically append a uniquifier to the end of the mostly-timestamp-based cart. I know, I know... uniqueness of cart has been hashed to death a million times over. But this thought got into my head during a long drive the other day when I had nothing to think about besides WebDNA.What happens to the uniqueness of the cart when the server's date changes, say during the switch from daylight savings to standard time (or vice versa)? Maybe there's some internal database of cart values so that even if a cart value was handed out after the server's time was set back an hour WebDNA would still know to add the sequential portion of the cart that would still make it unique. But what if during the one hour of overlap during the time change the server was also intentionally or unintentionally restarted? Wouldn't the internal mechanism of keeping track of uniqueness be lost?~joe-------------------------------------------------------------This message is sent to you because you are subscribed to the mailing list .To unsubscribe, E-mail to: To switch to the DIGEST mode, E-mail to Web Archive of this list is at: http://webdna.smithmicro.com/ Joe D'Andrea

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Uniqueness of [cart] (was Re: Number of cars in cart...)

2004

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