Message-Id: <6.1.2.0.2.20050327234016.03784a10@mail.jefsey.com>
Date: Sun, 27 Mar 2005 23:56:49 +0200
To: "Jon Hanna" <jon@hackcraft.net>, <ltru@ietf.org>
From: "JFC (Jefsey) Morfin" <jefsey@jefsey.com>
Subject: RE: [Ltru] Re: Registry in record-jar format
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At 20:36 27/03/2005, Jon Hanna wrote:
>What is the "dumbest" device we're likely to want to have a cache of the
>registry?
>
>This clearly isn't an elevator-control matter, but how much smarter than
>that would something have to be before having a access to the registry is
>useful, and hence before the size of the cache becomes a significant matter?

Could the authors (or anyone have a good command of their intent) document 
the exact _use_ of the IANA files as they see it.

- an application reads a langtag.
- what does it do?
- when is it going to need a IANA originated data?
- will it be usually in the application code? will be it be updated in a 
parameter file? will it call the IANA? Should it call a cache/mirror? Then 
who should manage them?
- which applications will do that?
- how many times a day/month/year will this happen for a single user? or 
ISP? or designer?

For example, I understand that the non documented CLDR application mostly 
needs the langtag as a reference and will maintain its own files to be 
themselves used by OS programmers. So the load should be very low, unless 
someone develops an updating tool direct from the IANA and people use it at 
each reboot. I am not sure about HTML and XML applications? I am not sure 
about the need of updates? Will it be on a regular basis, or when an error 
is met an update will be requested? Should there be a solution to prevent 
an application to loop (like there are tools for Whois from hat I know)? etc.

We do have to document in detail the IANA section, and I am really at loss 
understanding what we are talking about. I maintain a daily review of the 
IANA files for ccTLDs (http://afrac.org/intldate.txt). It actually 
decreases the load on IANA since people know if there is an update of not 
for them to look. But if many people made the same thing as me for their 
own us, or if my cron had a problem, it could create an overload.

Without that information the whole Draft does not make any sense, because 
it is to document a IANA service and there are different strategies to 
address the need, depending on the load it represents.

jfc


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