DNS caches that support partitioning ?

Aaron Hopkins lists at die.net
Mon Aug 20 10:00:00 CDT 2012


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



More information about the NANOG mailing list