Re: Understand this error

On Thu, Apr 30, 2009 at 3:00 PM, paulo matadr <saddoness(at)yahoo(dot)com(dot)br> wrote:
> Hi all,
> my database entry in mode recovery,
> analyzing my pg_log I seem this:
> system logger process (PID 6517) was terminated by signal 9
> background writer process (PID 6519) was terminated by signal 9
> terminating any other active server processes

You are bitten by the OOM-killer. It can lead to severy data loss if it decides
to kill the postmaster. To avoid this, you should always set overcommit_memory
to 2 (which means off). See Section 17.4.3. here:

http://www.postgresql.org/docs/8.3/interactive/kernel-resources.html

You should *never* run a production database server in overcommit_memory mode!