Subject: Re: [HACKERS] PostgreSQL, NetBSD and NFS
To: Tom Lane <>
From: Greg Copeland <greg@CopelandConsulting.Net>
List: current-users
Date: 02/05/2003 11:39:31
On Wed, 2003-02-05 at 11:18, Tom Lane wrote:
> "D'Arcy J.M. Cain" <> writes:
> > On Wednesday 05 February 2003 11:49, Tom Lane wrote:
> >> I wonder if it is possible that, every so often,
> >> you are losing just the last few bytes of an NFS transfer?
> > Yah, that's kind of what it looked like when I tried this before
> > Christmas too although the actual errors differd.
> The observed behavior could vary wildly depending on what data happened to
> get "read".
> Wild thought here: can you reduce the MTU on the LAN linking the NFS
> server to the NetBSD box?  If so, does it help?


I'm curious as to why you think adjusting the MTU may have an effect on
this.  Lowering the MTU may actually increase fragmentation, lower
efficiency, and even exacerbate the situation.

Is this purely a diagnostic suggestion?


Greg Copeland <>
Copeland Computer Consulting