On Fri, Oct 25, 2013 at 4:39 PM, Robert Hajime Lanning <lanning at lanning.cc> wrote: > Also, the time used would have to be sent from the client (using the > client's time.) Otherwise, every query will cause a time negotiation between > all servers to figure out the "proper" time. > > Then it will be on the users to keep all clients sync'd, or you will have > competing time updates. These are one possibility. A good example of why distributed systems are hard (and maybe expensive too!)