From: Dmitry Torokhov <dtor_core@ameritech.net>
To: Daniel Phillips <phillips@istop.com>
Subject: Re: GFS, what's remainingh
Date: Tue, 6 Sep 2005 00:05:58 -0500
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Cc: linux-kernel@vger.kernel.org, Lars Marowsky-Bree <lmb@suse.de>,
       Andi Kleen <ak@suse.de>, linux clustering <linux-cluster@redhat.com>,
       akpm@osdl.org, linux-fsdevel@vger.kernel.org
References: <20050901104620.GA22482@redhat.com> <200509052307.27417.dtor_core@ameritech.net> <200509060058.44934.phillips@istop.com>
In-Reply-To: <200509060058.44934.phillips@istop.com>
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On Monday 05 September 2005 23:58, Daniel Phillips wrote:
> On Tuesday 06 September 2005 00:07, Dmitry Torokhov wrote:
> > On Monday 05 September 2005 23:02, Daniel Phillips wrote:
> > > By the way, you said "alpha server" not "alpha servers", was that just a
> > > slip? Because if you don't have a cluster then why are you using a dlm?
> >
> > No, it is not a slip. The application is running on just one node, so we
> > do not really use "distributed" part. However we make heavy use of the
> > rest of lock manager features, especially lock value blocks.
> 
> Urk, so you imprinted on the clunkiest, most pathetically limited dlm feature 
> without even having the excuse you were forced to use it.  Why don't you just 
> have a daemon that sends your values over a socket?  That should be all of a 
> day's coding.
>

Umm, because when most of the code was written TCP and the rest was the
clunkiest code out there? Plus, having a daemon introduces problems with
cleanup (say process dies for one reason or another) whereas having it in
OS takes care of that.
 
> Anyway, thanks for sticking your head up, and sorry if it sounds aggressive. 
> But you nicely supported my claim that most who think they should be using a 
> dlm, really shouldn't.

Heh, do you think it is a bit premature to dismiss something even without
ever seeing the code?

-- 
Dmitry
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