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000342_rik@daneel.rdt.monash.edu.au _Thu Nov 19 01:28:45 1992.msg
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Return-Path: <rik@daneel.rdt.monash.edu.au>
Received: from dxmint.cern.ch by nxoc01.cern.ch (NeXT-1.0 (From Sendmail 5.52)/NeXT-2.0)
id AA12004; Thu, 19 Nov 92 01:28:45 MET
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id AA08822; Thu, 19 Nov 92 01:41:09 +0100
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Message-Id: <9211190040.AA26900@daneel.rdt.monash.edu.au>
To: www-talk@nxoc01.cern.ch
Subject: Re: hangs/multiple servers
In-Reply-To: Your message of "18 Nov 92 18:17:33 PST."
<9211190217.AA08693@wintermute.ncsa.uiuc.edu>
Date: Thu, 19 Nov 92 11:40:42 -1000
From: Rik Harris <rik@daneel.rdt.monash.edu.au>
X-Mts: smtp
Marc Andreessen wrote:
> Also, is there any way to specify backup servers? Does anyone else
> think this would be useful?
After the problems with info.cern.ch, I'd say yes, it would be useful.
The main problems I see:
a) If the backup is done in the document, the HTML format would need
to change. I'll leave this issue to others.
b) Keeping the data up-to-date, and consistent could be difficult. For
example, all documents must be relatively addressed to be able to move
them between systems. This is not always possible, for example, if
different ``schemes'' are used, or if different ports are used on the
same machine, then I believe the whole machine name needs to be
respecified. This problem could be partially solved by doing a
``search-and-replace'' on all addresses as the document is moved.
One possible way to implement backups is to have the client do it (makes
the client too clever?). The client could have a list of hosts, and for
each one, have a list of backup servers, to try if the main server is
down. The problem with this is that the list is much more difficult
to maintain, if everyone needs a copy, and only the clients that have
implemented this would benefit.
Just some random thoughts,
rik.
--
Rik Harris - rik.harris@fcit.monash.edu.au || Systems Programmer
+61 3 571-2895 (AH & ans.mach) +61 3 573-2679 (BH) || and Administrator
Faculty of Computing and Information Technology, || Vic. Institute of
Caulfield Campus, Monash University, Australia || Forensic Pathology