From: Laurenz Albe <laurenz.albe@cybertec.at>
To: Gunnar \"Nick\" Bluth <gunnar.bluth@pro-open.de>
To: Shukla, Sumeet <ShuklaSu@advisory.com>
To: pgsql-admin@postgresql.org <pgsql-admin@postgresql.org>
Subject: Re: How should the correct value of shmmax be calculated for DWH (OLAP) server
Date: Mon, 15 Oct 2018 10:21:09 +0200
Message-ID: <54f17ea619c4a0d74f8ecc71d91d8862162aa5c2.camel@cybertec.at> (raw)
In-Reply-To: <5BC4466E.7070902@pro-open.de>
References: <BBF9115E-9E39-4710-B9EF-AE41EF576F38@advisory.com>
<4647b0c67c2c5d4dc08032f1b11240665711af95.camel@cybertec.at>
<5BC4466E.7070902@pro-open.de>
Gunnar "Nick" Bluth wrote:
> 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 ;-)
True, I was living in the past. Thanks for the correction.
Yours,
Laurenz Albe
--
Cybertec | https://www.cybertec-postgresql.com
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Reply to all the recipients using the --to and --cc options:
reply via email
To: pgsql-admin@postgresql.org
Cc: laurenz.albe@cybertec.at, gunnar.bluth@pro-open.de, ShuklaSu@advisory.com
Subject: Re: How should the correct value of shmmax be calculated for DWH (OLAP) server
In-Reply-To: <54f17ea619c4a0d74f8ecc71d91d8862162aa5c2.camel@cybertec.at>
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox