nanog mailing list archives
Re: DNS caches that support partitioning ?
From: Aaron Hopkins <lists () die net>
Date: Mon, 20 Aug 2012 08:00:00 -0700 (PDT)
On Sat, 18 Aug 2012, Patrick W. Gilmore wrote:
IMHO, if Google losses a datacenter and all users are stuck waiting for a long TTL to run out, that is Very Bad. In fact, I would call even 2.5 minutes (average of 5 min TTL) Very Bad. I'm impressed they are comfortable with a 300 second TTL.
Google is very aggressive about reducing user-visible latency, of which they cite DNS as a significant contributing factor. They may be choosing to strike a different balance of faster when everything is working correctly vs faster to recover when something breaks. -- Aaron
Current thread:
- Re: Return two locations or low TTL [was: DNS caches that support partitioning ?], (continued)
- Re: Return two locations or low TTL [was: DNS caches that support partitioning ?] Patrick W. Gilmore (Aug 20)
- Re: Return two locations or low TTL [was: DNS caches that support partitioning ?] Chris Adams (Aug 20)
- Re: Return two locations or low TTL [was: DNS caches that support partitioning ?] Patrick W. Gilmore (Aug 20)
- Re: Return two locations or low TTL [was: DNS caches that support partitioning ?] Tony Finch (Aug 20)
- Re: Return two locations or low TTL [was: DNS caches that support partitioning ?] Shumon Huque (Aug 20)
- Re: Return two locations or low TTL [was: DNS caches that support partitioning ?] Tony Finch (Aug 20)
- Message not available
- Re: Return two locations or low TTL [was: DNS caches that support partitioning ?] Tim Chown (Aug 20)
- Re: Return two locations or low TTL [was: DNS caches that support partitioning ?] Nick Hilliard (Aug 20)
- Re: Return two locations or low TTL [was: DNS caches that support partitioning ?] Mark Andrews (Aug 20)
- Re: Return two locations or low TTL [was: DNS caches that support partitioning ?] Mark Andrews (Aug 20)
- Re: DNS caches that support partitioning ? Aaron Hopkins (Aug 20)
- Re: DNS caches that support partitioning ? Andrew Sullivan (Aug 17)
- Re: DNS caches that support partitioning ? John Levine (Aug 17)
- Re: DNS caches that support partitioning ? Raymond Dijkxhoorn (Aug 18)
- Re: DNS caches that support partitioning ? Patrick W. Gilmore (Aug 18)
- Re: DNS caches that support partitioning ? Tony Finch (Aug 20)