[bind10-dev] new in-memory zone data design

[JINMEI Tatuya / 神明達哉]

At Wed, 18 Jul 2012 09:23:16 +0200,
Peter Koch <pk at DENIC.DE> wrote:

> > Hmm, interesting.  Do you know how often these wildcard records are
> > used in DE?
> 
> i'll set something up.

Thanks.

> > In the case of large-#-of-small zones, I guess it also
> > depends on the expected total response performance.  I guess the
> > vast majority of the small zones are very minor in such cases, and if
> > the requested overall performance is moderate the additional overhead
> > due to wildcards can be less substantial.
> 
> Depends on the actual figures.  Currently registrars/large dns operators
> around here tend to prefer powerdns for both performance and ease of use
> (DB backend).  So, to provide an attractive alternative, overhead needs
> to be minimized.

Regarding performance, is it response performance (often measured by
the max QPS)?  If so, do you know which level of performance is
expected, e.g., thousands of queries per sec, or tens of thousands?
Do you know which type of servers are they, whether delegation centric
or for leaf domains, or hybrid, if there's a clear trend?  I suspect
possible approaches for higher response performance with DB backend
will highly depend on this type of expected usage.

---
JINMEI, Tatuya
Internet Systems Consortium, Inc.