DNS caches that support partitioning ?

Patrick W. Gilmore patrick at ianai.net
Sat Aug 18 17:43:24 CDT 2012


On Aug 18, 2012, at 8:44, Jimmy Hess <mysidia at gmail.com> wrote:

> And I say that, because some very popular RRs have insanely low TTLs.
> 
> Case in point:
> www.l.google.com.    300    IN    A    74.125.227.148
> www.l.google.com.    300    IN    A    74.125.227.144
> www.l.google.com.    300    IN    A    74.125.227.146
> www.l.google.com.    300    IN    A    74.125.227.145
> www.l.google.com.    300    IN    A    74.125.227.147
> www.l.google.com.    300    IN    A    74.125.227.148

Different people have different points of view.

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.

You obviously feel differently.  Feel free to set your TTL higher.

-- 
TTFN,
patrick




More information about the NANOG mailing list