Re: DNS caches that support partitioning ?

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