Pretty sure it also uses mac address, so chances are very slim. I'll check out time uuid too, thanks.
On 7 Feb 2011 17:11, "Victor Kabdebon" <victor.kabde...@gmail.com> wrote: Hello Kallin. If you use timeUUID the chance to generate two time the same uuid is the following : considering that both client generate the uuid at the *same millisecond*, the chance of generating the same uuid is : 1/1.84467441 × 1019Which is equal to the probability for winning a national lottery for 1e11 days in a row ( for 270 million years). Well if you do have a collision you should play the lottery :). Best regards, Victor Kabdebon http://www.voxnucleus.fr 2011/2/7 Kallin Nagelberg <kallin.nagelb...@gmail.com> > > Hey, > > I am developing a session management system using Cassandra and need > to generate uni...
