Re: ext3 filesystem / linux 7.3

From: Robert Treat <xzilla(at)users(dot)sourceforge(dot)net>
To: Shankar K <shan0075(at)yahoo(dot)com>
Cc: "scott(dot)marlowe" <scott(dot)marlowe(at)ihs(dot)com>, Chris Sutton <chris(at)smoothcorp(dot)com>, pgsql-performance(at)postgresql(dot)org
Subject: Re: ext3 filesystem / linux 7.3
Date: 2003-04-07 17:17:35
Message-ID: 1049735855.8344.8807.camel@camel
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We've had 2 crashes on red hat 7.3 in about 9 months of running. Both
instances required manual power off/on of the server, but everything
came up nice and ready to go. The problems seemed to stem from i/o load
with the kernel (not postgresql specific), but should be resolved with
the latest Red Hat kernel. If you search on buffer_jdirty in bugzilla
you'll see a couple of reports.

Robert Treat

On Thu, 2003-04-03 at 14:45, Shankar K wrote:
> Hi Scott,
>
> Could you please share with us the problems you had
> with linux 7.3
>
> would be really interested to know the kernel configs
> and ext3 filesystem modes
>
> Shankar
>
> --- "scott.marlowe" <scott(dot)marlowe(at)ihs(dot)com> wrote:
> > On Thu, 3 Apr 2003, Chris Sutton wrote:
> >
> > > On Wed, 2 Apr 2003, Josh Berkus wrote:
> > >
> > > > > I had previously understood that ext3 was a
> > bad thing with PostgreSQL and I
> > > > > went way above and beyond to create it on an
> > Ext2 filesystem (the only one
> > > > > on the server) and mount that.
> > >
> > > We recently started using Postgres on a new
> > database server running RH 7.3
> > > and ext3. Due to some kernel problems the machine
> > would crash at random
> > > times. Each time it crashed it came back up
> > extremly easily with no data
> > > loss. If we were on ext2 coming back up after a
> > crash probably wouldn't
> > > have been quite as easy.
> > >
> > > We have since given up on RH 7.3 and gone with RH
> > Enterprise ES. Just an
> > > FIY for any of you out there thinking about moving
> > to RH 7.3 or those that
> > > are having problems with 7.3 and ext3.
> >
> > We're still running RH 7.2 due to issues we had with
> > 7.3 as well.
> >

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