On Fri, 10 Oct 2003, [iso-8859-15] Hervé Piedvache wrote: > One other small question ... Does PostgreSQL is scalable ? > I mean ... is it possible to have two servers, one rack of disks connected to > the 2 servers to get access in same time to the same database ?
No. You need to replicate the DB to another machine to have this work - and even still, all writes need to go to the 'master' db. Reads can go to either. > To be clear I would like to make a system with PostgreSQL able to answer about > 70 000 000 requests by day (Internet services) ... I'm not sure about the > server configuration I have to make. > Well, 70M requests/day is only about 810 / second - assuming we're talking about simple selects that is very easy to achieve. Considering hardware you should look at: multiple cpus, gigs of memory, and very fast disks. (Raid5 w/battery backed write caches seem to be popular). You should also look at how much data this guy will hold, what is the read/write ratio and all the "normal" things you should do while planning a db. -- Jeff Trout <[EMAIL PROTECTED]> http://www.jefftrout.com/ http://www.stuarthamm.net/ ---------------------------(end of broadcast)--------------------------- TIP 3: if posting/reading through Usenet, please send an appropriate subscribe-nomail command to [EMAIL PROTECTED] so that your message can get through to the mailing list cleanly
