One thing is for sure YOU can't login FACEBOOK with two different IDs from the SAME PC at the same TIME.
Or even (correct if I'm wrong) SAME ID on to different PCs There should be a UNIQUE field such MAC ADDRESS + IP + ID managed by the DATABASE in a TABLE !!! So there is a TABLE *Kind Regards* *Alain Bastien* *34 Dr Ross AvenueRose Hill 72102MauritiusMobile Tel: +230 5 719 30 30* *Skype:alainbastien* *Viber: 7320143* On Thu, Oct 27, 2016 at 6:11 PM, Elmar Haneke [email protected] [firebird-support] <[email protected]> wrote: > > > > > I was looking on FaceBook 'sDATA storage and MySQL !!! > > > > For sure millions simultaneous Users connected !!! > > I would guess nobody is running an database server with millions of > connections simultaneously open. > > On huge Systems as Facebook there are some application servers between > users and database which do serialize database access to an lower number > of connections - it does not make sense to let DB server process > millions of queries simultaneously since the hardware has not that much > parallelity. > > Elmar > > >
