Re: [DNSOP] New Version Notification for draft-pusateri-dnsop-update-timeout-01.txt

Paul Vixie <paul@redbarn.org> Thu, 21 February 2019 20:05 UTC

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To: Ted Lemon <mellon@fugue.com>
Cc: Mark Andrews <marka@isc.org>, Tony Finch <dot@dotat.at>, dnsop <dnsop@ietf.org>, Paul Wouters <paul@nohats.ca>, Joe Abley <jabley@hopcount.ca>, Dick Franks <rwfranks@acm.org>
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From: Paul Vixie <paul@redbarn.org>
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Subject: Re: [DNSOP] New Version Notification for draft-pusateri-dnsop-update-timeout-01.txt
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Ted Lemon wrote on 2019-02-21 11:11:
> On Feb 21, 2019, at 11:05 AM, Mark Andrews <marka@isc.org> wrote:
>> Hashes save space once the rdata is bigger than the hash.
> 
> Agreed, but why do we need to save space?  It would be possible to
> have the data structure that stores the delete RR point to the RR
> that’s to be deleted, so if on-disk or in-memory efficiency is really
> important, this would address that.   In practice, though, this
> option isn’t likely to be in use on servers, like large ISP caches,
> where space is at a premium.   So this seems like a false economy.

+1. again, this is how DEFUPD worked in 1996, and for this reason.

-- 
P Vixie