Gentoo shared_buffers setting (was: BUG #3888: postmaster...)

From: Marti <marti(at)juffo(dot)org>
To: "Tom Lane" <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: "Heikki Linnakangas" <heikki(at)enterprisedb(dot)com>, pgsql-bugs(at)postgresql(dot)org
Subject: Gentoo shared_buffers setting (was: BUG #3888: postmaster...)
Date: 2008-01-20 20:07:09
Message-ID: 54b33ccd0801201207o78e554bbtac9985df9e54af51@mail.gmail.com
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On 1/20/08, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>> Marti Raudsepp wrote:
>>> However, as of PostgreSQL 8.3, postmaster requires that the number of
>>> buffers is at least (max_connections*2 + 6)

> It's sort of irrelevant IMHO, as any useful setting is orders of
> magnitude larger than that anyway.

Gentoo defaults to launching PostgreSQL 8.2 with "-N 40 -B 80" which
is how I hit this problem; this was set in a distro-specific
configuration file which I previously hadn't even looked at. Does this
mean that these defaults are insane and I should complain loudly?

Regards,
Marti Raudsepp

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