Hi Jim, I'm settled on sticking with PostgreSQL since MySQL is just to incompatible with my needs and desires. I just wanted to be open-minded to some of the MySQL advocacy I've heard. My project is essentially a CMS, but there are features that are commonly found in social networking sites like MySpace and CampusHook. I prefer to call it a web-based BBS inspired by my Citadel days that borrows features from social networking sites and multi-user blog sites (think Slashdot, not LiveJournal or Blogger). I don't anticipate the kind of usage that a site like MySpace gets; but should users really go for the social networking features, and start hammering away at profiles with comments and updates; I'd like to know that the database can survive. I read in a few places that vacuuming on a heavily hit site can be necessary several times a day; and so that has been my biggest concern with PostgreSQL. I haven't previously used autovacuum. Regards, Anthony On 5/4/06, Jim C. Nasby <jnasby@xxxxxxxxxxxxx> wrote:
On Sun, Apr 30, 2006 at 12:32:53PM -0700, Tony Lausin wrote: > >[ rotfl... ] MySQL will fall over under any heavy concurrent-write > >scenario. It's conceivable that PG won't do what you need either, > >but if not I'm afraid you're going to be forced into Oracle or one > >of the other serious-money DBs. > > > > regards, tom lane > > Hi Tom, > > That's a scary idea - being forced into Oracle or Sybase. Isn't > Slashdot.org still running strongly off of MySQL? /. is also essentially read-only, or fairly close to it. The only sites I'm aware of that have gotten MySQL to scale in a more write-heavy environment are only able to do so by hand-crafting a clustering solution of some kind, so that not everything is in the same server. Livejournal is an example of this. Why would a CMS have that high an update rate anyway? I'd think it would only be somewhere between 10% and 25% DML... -- Jim C. Nasby, Sr. Engineering Consultant jnasby@xxxxxxxxxxxxx Pervasive Software http://pervasive.com work: 512-231-6117 vcard: http://jim.nasby.net/pervasive.vcf cell: 512-569-9461
