Re: [DNSOP] New Version Notification for draft-pusateri-dnsop-update-timeout-00.txt

Tom Pusateri <pusateri@bangj.com> Mon, 27 August 2018 18:28 UTC

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From: Tom Pusateri <pusateri@bangj.com>
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Date: Mon, 27 Aug 2018 14:28:41 -0400
In-Reply-To: <CAPt1N1mLVo917KWhU9msKsPaJWRquF=S0B796xa36+xwuGQGPw@mail.gmail.com>
Cc: Mark Andrews <marka@isc.org>, dnsop WG <dnsop@ietf.org>
To: Ted Lemon <mellon@fugue.com>
References: <153507165910.12116.7113196606839876181.idtracker@ietfa.amsl.com> <AFB90F6F-5D99-4403-AAB6-1123727973E6@bangj.com> <5B7F5E07.5080100@redbarn.org> <7F91FFF7-71C3-4F8E-82CD-266B170983E0@bangj.com> <C0EE2719-B662-4231-AF51-D3B98B00AD0D@fugue.com> <6D607922-393D-4549-AAFA-49279C260CA4@bangj.com> <3C6100BD-62D6-41ED-B7BF-679F0D4E4113@fugue.com> <5063A32B-4877-4860-BA73-CCB068AB7FCB@bangj.com> <CAPt1N1=tXZNgT6ygAaLFfOMze7hbGZ6q_eN1C3iEo9ryBNcyLg@mail.gmail.com> <98EF2CAC-7C13-4E68-8D2B-EC0659EA9646@bangj.com> <CAPt1N1kFNY4=CUMsTvXmeRREeLAkY8xpBdw4vPDxujgke6QT8A@mail.gmail.com> <963460AA-14BB-44AA-87CA-7F09A707DB5D@bangj.com> <47AE41F8-9F5F-4CC8-B4F0-7E8191011E99@bangj.com> <F4335D3A-0241-437F-A428-8EA95F0A1C18@fugue.com> <56E8B2A6-7B65-4D25-B102-9EFA7E2CBE7B@bangj.com> <86D465A4-F390-4370-83EC-0E72FBE115BE@isc.org> <CAPt1N1=xy+JAtgvvF_+9LiTiefbpTy_Vd0b8gswozA1K1C57Nw@mail.gmail.com> <99FA0B76-D225-45FC-A33C-B65E2673A45E@isc.org> <CAPt1N1kp8Tg5tWEiDCMuMNTmehRsBSkkC1=u+RcvkG6ZCegE-g@mail.gmail.com> <977DF12E-178B-4500-B045-F27BF1CDF51C@isc.org> <CAPt1N1=cafnVmnNM2eSF67QbgRk8hUEAd2Gwuqx4OUehPZSmyQ@mail.gmail.com> <AC3FE6CF-CC11-44D3-8C50-BC19C295F001@bangj.com> <CAPt1N1ksyp1t_e9Qd4FTtTVsZr9+VDm11MR-jS9Oz8Kpz7J7AQ@mail.gmail.com> <9B4A76C4-3BA6-46EC-90EB-E78065FD8BD3@bangj.com> <CAPt1N1=o3KRa_X2KTuW1=KagOv1R0KM=QvT0QBf5YrOSWTr9mw@mail.gmail.com> <461B2749-E2A4-42B8-9FB3-824D96039423@bangj.com> <DEE0C8C8-5557-4D97-B3C8-6535F3EB3693@bangj.com> <CAPt1N1knPwGFy38c0=xNT_mHwo=vQZmzqNJHc_=Oshcr1OH8sQ@mail.gmail.com> <C273A347-C918-428F-9CB9-FBF9426F913A@bangj.com> <CAPt1N1mTSYcmaw3TpO1UnHA1r4CF2+BQR9UG-kSQaiTxGtk24g@mail.gmail.com> <A3BB12A2-1159-40D6-8F24-96226F98E1F5@bangj.com> <AD5AAC94-077C-47A6-A28C-9FA7D2A78E2D@isc.org> <CAPt1N1mLVo917KWhU9msKsPaJWRquF=S0B796xa36+xwuGQGPw@mail.gmail.com>
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Subject: Re: [DNSOP] New Version Notification for draft-pusateri-dnsop-update-timeout-00.txt
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Because even if you add TYPE, you have multiple PTR records (instance names) with the same owner name, class, and type that can timeout differently.

Tom

> On Aug 26, 2018, at 11:20 PM, Ted Lemon <mellon@fugue.com>; wrote:
> 
> If we do that, why do we need a hash at all?
> 
> On Sun, Aug 26, 2018 at 10:51 PM Mark Andrews <marka@isc.org <mailto:marka@isc.org>> wrote:
> I would add a covered type field to TIMEOUT (c.f. RRSIG).  I also wouldn’t have more than
> a single timeout per record.  I’m tempted to say a single hash as well.  If there is multiple
> timeouts per record then the blocks need to be sorted in timeout order.
> 
> Covered is there to reduce the number of RR’s that need to be hashed to remove a record.
> It will also reduce the size of IXFR’s as you don’t need to re-construct a new TIMEOUT
> record that covers every timeout at a name on each change.
> 
> For all records at a name is often more expensive that for all records of type covered.
> Name servers are optimised for looking up <name,type,class> tuples rather than <name,class>
> tuples.
> 
> Sorting of timeout blocks is so that you can look at the first timeout when working out
> which TIMEOUT needs to be processed first in a zone.
> 
> -- 
> Mark Andrews, ISC
> 1 Seymour St., Dundas Valley, NSW 2117, Australia <https://maps.google.com/?q=1+Seymour+St.,+Dundas+Valley,+NSW+2117,+Australia&entry=gmail&source=g>
> PHONE: +61 2 9871 4742              INTERNET: marka@isc.org <mailto:marka@isc.org>
>