On Mon, Jul 31, 2017 at 11:48 AM, Tom Lane <t...@sss.pgh.pa.us> wrote: > Peter Eisentraut <peter.eisentr...@2ndquadrant.com> writes: >> On 7/21/17 06:18, gorka....@openbravo.com wrote: >>> In "Linux" section, show an example of setting shmmax to 16GB, >>> when this >>> change is not needed from pg 9.3. >>> >>> Maybe just remove to avoid confusion? >>> Maybe also shmall also not needed ? > >> It's still needed in some cases, so I don't see why we can't have an >> example. > > I wonder whether it'd make sense to recast those examples as increasing > semaphore-related settings, as that's much more likely to be needed these > days. I had to boost the SEMMNI setting on my workstation just last week. > (Admittedly, I had something like a dozen postmasters going, but still, > that was an actual change I had to make.) It'd be particularly valuable > to document this for Linux, with its opaque "kernel.sem" API for the > semaphore limits.
Agreed. I ran into this many years ago with multiple clusters on a box and it is definitely non-obvious. -- Sent via pgsql-docs mailing list (pgsql-docs@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-docs
