Re: Shouldn't we document "don't use a mountpoint as $PGDATA"?

On Tue, Jul 28, 2015 at 02:19:00PM -0400, Andrew Dunstan wrote:
>
> On 07/28/2015 02:01 PM, Tom Lane wrote:
> >I had a discussion with some folks at Red Hat about this:
> >https://bugzilla.redhat.com/show_bug.cgi?id=1247477
> >
> >I had the idea that we had documented somewhere that the data directory
> >should not be a filesystem mount point, but I sure can't find it now.
> >Any objections to adding some text about this to section 17.2, near the
> >caveats about NFS?
>
>
>
> Please do. I came across a client who should have known better doing
> this just a week or two ago.

Uh, we added an initdb warning about mount points:

commit 17f15239325a88581bb4f9cf91d38005f1f52d69
Author: Bruce Momjian <bruce(at)momjian(dot)us>
Date: Sat Feb 16 18:52:50 2013 -0500

Warn about initdb using mount-points

Add code to detect and warn about trying to initdb or create pg_xlog on
mount points.

Was that not sufficient?

--
Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
EnterpriseDB http://enterprisedb.com

+ Everyone has their own god. +