| From: | Robert Haas <robertmhaas(at)gmail(dot)com> |
|---|---|
| To: | Yuri Levinsky <yuril(at)celltick(dot)com> |
| Cc: | Heikki Linnakangas <hlinnakangas(at)vmware(dot)com>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: requested shared memory size overflows size_t |
| Date: | 2014-03-04 14:30:52 |
| Message-ID: | CA+Tgmoa2W+zyhJGQzML=hgn8i5iQP+PLJWnD5DX7NnCMS3a08A@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Tue, Mar 4, 2014 at 6:05 AM, Yuri Levinsky <yuril(at)celltick(dot)com> wrote:
> I changed postgresql.conf to decrease those parameters but no change: GMT54000FATAL: requested shared memory size overflows size_t
I think this means you are running on a 32-bit operating system, or at
least on a 32-bit build. That means you can't use more than 4GB of
address space per process, which has to fit shared_buffers and
everything else. Typically it's best not to set shared_buffers above
2-2.5GB on such systems, but the real solution is to use a 64-bit
PostgreSQL.
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company
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