[Pdns-users] question about PDNS - performance

bert hubert ahu at ds9a.nl
Tue Feb 22 21:34:46 UTC 2005

On Wed, Feb 23, 2005 at 10:32:00AM +1300, Dan Clark wrote:
> ok excellent, thats just what I wanted to hear ;)
> just one query, is your SQL on the same box/s as the DNS daemon? or do 
> you have it across the network on the core MYSQL server?

We've seen great results from a separate machine for the database. There is
some cost in latency, but if you use gigabit that is very limited. You may
want to increase the number of distributor-threads for a remote machine.

> I'm trying to find where the bottlekneck is slowing it all down and 
> can't get logging to file to work (just wont populate the .log file)

Try query-logging in PowerDNS. There are also tools to diagnose 'slow
queries' on MySQL. 

Good luck!

http://www.PowerDNS.com      Open source, database driven DNS Software 
http://netherlabs.nl              Open and Closed source services

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