Date: Tue, 15 Dec 1998 09:53:50 -0800 (PST) From: John Polstra <jdp@polstra.com> To: eivind@yes.no Cc: hackers@FreeBSD.ORG Subject: Re: idea/help w. mirroring Message-ID: <199812151753.JAA16545@vashon.polstra.com> In-Reply-To: <19981214232905.R5444@follo.net> References: <Pine.BSF.4.05.9812141636350.27793-100000@bright.fx.genx.net>
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In article <19981214232905.R5444@follo.net>,
Eivind Eklund <eivind@yes.no> wrote:
> On Mon, Dec 14, 1998 at 04:39:42PM -0500, Alfred Perlstein wrote:
> >
> > Has anyone written something that could be used to intercept all calls to
> > write out file modification and give the modifications to a userland
> > application?
> >
> > I'm interested in the most efficient method of doing filesystem mirroring,
> > passing that info into a userland app using multicast would be ideal.
> >
> > The userland app may see which blocks of which file have been modified and
> > distribute deltas across the network.
Something like that would also be useful to reduce the load on
primary CVSup server hosts such as freefall.
> Stacking layer.
Ha ha ha, how about something that actually works, as opposed to
"sounds good in the McKusick book"? As far as I can tell, there's not
a single stackable filesystem in FreeBSD that works well enough to use
in practice.
John
--
John Polstra jdp@polstra.com
John D. Polstra & Co., Inc. Seattle, Washington USA
"Nobody ever went broke underestimating the taste of the American public."
-- H. L. Mencken
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