[Pdns-users] question about PDNS - performance

Dan Clark dan at synaptic.net.nz
Tue Feb 22 20:00:08 UTC 2005

I recently tried powerdns and was pretty astounded that it couldn't keep 
up with my 30 odd zones.
It could be misconfiguration but I can't get debugging/logging to work, 
unless I start the daemon using /etc/init.d/pdns monitor
Once I did get it all going, queries took too long to return results and 
reverse lookup zones didn't seem to work. Then after a day in service 
the box would only answer queries from nslookup/dig on the box itself 
and no longer from the interweb as it would time out before it could 
answer the query.
I'm lost really, why would it do this on a fresh install with very 
little zones?

Dan Clark
Technical Director
Synaptic Ltd

Michiel van Es wrote:

> Hi,
> I am thinking to switch our Bind DNS to Powerdns.
> How fast is Powerdns?
> We are hosting zones with a large amount of answers/queries per minute 
> (at least  20.000 answers per.minute - 500 queries p/m)
> This is for 1 zone..we are having 3 or 4 of this kind of customers 
> which are having such a large DNS load.
> Can PDNS with Mysql (gmysql backend) handle this amount of load easily?
> What is the MAX?
> I know it is also a hardware  issue but we are currently running this 
> load on dual p 3 800 Mhz 512 MB Ram and 2 18,2 GB SCSI disks).
> Thanks for some answers/benchmarks results/experiences..

More information about the Pdns-users mailing list