Re: How should the correct value of shmmax be calculated for DWH (OLAP) server

Am 15.10.2018 um 09:43 schrieb Laurenz Albe:
> Shukla, Sumeet wrote:
>> Can someone please help me determine the appropriate value of kernel shmmax
>> parameter for PostgreSQL configured for Data Warehouse use?
>
> Simple. Set it to anything bigger than your "shared_buffers" setting.
> If PostgreSQL manages to start, your setting is big enough.
>

As a matter of fact, you shouldn't need to set SHMMAX anyway, unless you
tampered with "dynamic_shared_memory_type" or you are on a very exotic
OS ;-)

Best regards,
--
Gunnar "Nick" Bluth
RHCE/SCLA

Mobil +49 172 8853339
Email: gunnar(dot)bluth(at)pro-open(dot)de
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