In response to Greg Smith <gsmith@xxxxxxxxxxxxx>: > On Thu, 28 Aug 2008, Bill Moran wrote: > > > In linux, it's possible to tell the OOM killer never to consider > > certain processes for the axe, using /proc magic. See this page: > > http://linux-mm.org/OOM_Killer > > > > Perhaps this should be in the PostgreSQL docs somewhere? > > The fact that > http://www.postgresql.org/docs/current/static/kernel-resources.html#AEN22218 > tells you to flat-out turn off overcommit is the right conservative thing > to be in the documentation as I see it. Sure, it's possible to keep it on > but disable the worst side-effect in some kernels (looks like 2.6.11+, so > no RHEL4 for example). Trying to get into all in the manual is kind of > pushing what's appropriate for the PostgreSQL docs I think. I don't know, Greg. First off, the solution of making the postmaster immune to the OOM killer seems better than disabling overcommit to me anyway; and secondly, I don't understand why we should avoid making the PG documentation as comprehensive as possible, which seems to be what you are saying: "we shouldn't make the PG documentation too comprehensive, because then it will get very big" -- Bill Moran Collaborative Fusion Inc. http://people.collaborativefusion.com/~wmoran/ wmoran@xxxxxxxxxxxxxxxxxxxxxxx Phone: 412-422-3463x4023
