--- On Wed, 14/4/10, Dan Nelson <dnel...@allantgroup.com> wrote: > Hammerman said: > > My organization has a dedicated MySQL server. The > system has 32Gb of > > memory, and is running CentOS 5.3. The default > engine will be InnoDB. > > Does anyone know how much space should be dedicated to > swap? > > I say zero swap, or if for some reason you NEED swap (for > crashdumps maybe, > but I didn't think Linux supported that), no more than > 2GB. With that much > RAM, you don't ever want to be in the state where the OS > decides to page out > 8GB of memory (for example) to swap. We have a few > Oracle servers with > between 32 and 48 GB of memory and they all live just fine > without swap. >
But surely better to have a server that is paging out and has slowed to a crawl than one where the oom killer starts killing off your processes, with no swap I'd be turning overcommit off. -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/mysql?unsub=arch...@jab.org
