Stephen Frost wrote:
> I'd also suggest you look into Lamport timestamps... Trusting the
> system clock just isn't practical, even with NTP. I've developed
> (albeit relatively small) systems using Lamport timestamps and would be
> happy to talk about it offlist. I've probably got some code I could
> share as well.
>
that looks like what Oracle RAC uses:
http://www.lc.leidenuniv.nl/awcourse/oracle/rac.920/a96597/coord.htm
cheers
andrew
