Alvaro Herrera wrote:
> Martijn van Oosterhout wrote:
> > On Mon, Dec 17, 2007 at 01:48:31PM +0000, Alvaro Herrera wrote:
> > > Log Message:
> > > -----------
> > > Improve wording.
>
> > I'd suggest removing everything between the parentheses, or perhaps
> > something like: By tracking allocated memory rather than used memory
> > it removes the possibilty of failing in a page fault. This option also
> > require you allocate enoghh swap to cover all possible eventualities,
> > though in production it will not be used.
>
> I agree that the parenthised phrase should be removed.
>
> http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/runtime.sgml?r1=1.387&r2=1.391
>
> I think your proposed wording is removed enough from what the
> complainant was saying that it is not worth to stick it in. The point
> here is, to what extent do we want to spoon-feed careless sysadmins?
OK, I have removed the paratheses paragraph about fork() and added link
to an article about the OOM:
http://lwn.net/Articles/104179/
On Linux 2.6 and later, an additional measure is to modify the kernel's behavior so that it will not
<quote>overcommit</>memory. Although this setting will not prevent the <ulink
url="http://lwn.net/Articles/104179/">OOMkiller</> from being invoked altogether, it will lower the chances
significantlyand will therefore lead to more robust system behavior. This is done by selecting strict overcommit
modevia <command>sysctl</command>:
-- Bruce Momjian <bruce@momjian.us> http://momjian.us EnterpriseDB
http://postgres.enterprisedb.com
+ If your life is a hard drive, Christ can be your backup. +
