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From: Florian Weimer <fweimer@bfk.de>
To: Scott Marlowe <scott.marlowe@gmail.com>
Cc: Trevor Talbot <quension@gmail.com>
Cc: pgsql-performance@postgresql.org
Subject: Re: Performance on 8CPU's and 32GB of RAM
Date: Fri, 07 Sep 2007 10:17:11 +0200
Message-ID: <82ir6mnb3s.fsf@mid.bfk.de> (raw)
In-Reply-To: <dcc563d10709051236o60f852cdne392937704830200@mail.gmail.com>
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* Scott Marlowe:

> And there's the issue that with windows / NTFS that when one process
> opens a file for read, it locks it for all other users.  This means
> that things like virus scanners can cause odd, unpredictable failures
> of your database.

I think most of them open the file in shared/backup mode.  The only
lock that is created by that guards deletion and renaming.  It can
still lead to obscure failures, but it's not a wholly-eclusive lock.

-- 
Florian Weimer                <fweimer@bfk.de>
BFK edv-consulting GmbH       http://www.bfk.de/
Kriegsstraße 100              tel: +49-721-96201-1
D-76133 Karlsruhe             fax: +49-721-96201-99

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