[Pdns-users] Performance?

Mike Benoit mikeb at netnation.com
Tue Apr 8 22:07:25 UTC 2003


We use a perl script and xinetd on each server, then simply echo some
commands to a specified port on each server.

On Tue, 2003-04-08 at 13:50, Dan Durrer wrote:
> Sorry for the delayed response.. In regards to pdns_control purge,  this
> is cool for the master server.  But it seems to me that we would need to
> run this command on each server right?  How do you solve this issue?
> 
> Dan
> 
> -----Original Message-----
> From: Mike Benoit [mailto:mikeb at netnation.com] 
> Sent: Friday, April 04, 2003 12:17 PM
> To: Dan Durrer
> Cc: pdns-users at mailman.powerdns.com
> Subject: Re: [Pdns-users] Performance?
> 
> 
> With that many updates, make sure you use InnoDB table types. This will
> give you row level locking, and probably the only way MySQL will work
> for you. Alternatively use PostgreSQL, though it may be slightly slower.
> 
> Uptime: 28.1 days Queries/second, 1, 5, 10 minute averages: 106, 102,
> 102. Max queries/second: 950
> 
> Our nameservers are PIII-866's running PDNS, and PostgreSQL on the same
> box, it handles spikes without much problem at all. The key of course is
> in the caching values you set. We set our cache to timeout after 1day,
> but to still get instant updates, we simply push cache expiration
> commands to PDNS. (pdns_control purge www2.blah.com) This gives you the
> best of both worlds and you should be able to scale PDNS well past
> thousands of queries/sec. 
> 
> On Thu, 2003-04-03 at 15:26, Dan Durrer wrote:
> > Hello,
> > 
> > We are considering using PowerDNS for a service we offer.  Currently 
> > we are using BIND 9.  My question is just how well does this software 
> > perform under heavy load?  Are we going to run into MySQL limitations?
> 
> > We heavily use the dynamic update feature of bind.  Processing roughly
> 
> > 300/updates a minute.  Our primary dns server answers about 480 
> > queries/sec.  One big concern I have with BIND is that after it has 
> > been running for a few hours it can take up to 15 minutes to 
> > completely shut down, due to all the journal files that get synced.
> > 
> > Anyone out there care to share there experiences with powerDNS and it 
> > ability to handle high traffic?  Additionally does MySQL replication 
> > master/slave scenario use more or less bandwidth than a bind IXFR 
> > based system?
> > 
> > 
> > Thank you,
> > Dan
> > 
> > 
> > 
> > _______________________________________________
> > Pdns-users mailing list
> > Pdns-users at mailman.powerdns.com 
> > http://mailman.powerdns.com/mailman/listinfo/pdns-users
-- 
Best Regards,
 
Mike Benoit
NetNation Communications Inc.
Systems Engineer
Tel: 604-684-6892 or 888-983-6600
 ---------------------------------------
 
 Disclaimer: Opinions expressed here are my own and not 
 necessarily those of my employer



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