[Pdns-users] Is a valid NOTIFY received by PowerDNS suppose to initiate an AXFR?

[bert hubert]

On Wed, Jan 30, 2008 at 04:25:51PM +0000, Jaco Engelbrecht wrote:
> I've got a PowerDNS 2.9.20 instance, configured as supermaster for a
> Bind 9 instance which sends notifies to the PowerDNS instance.

Hi Jaco,

Would it be possible for you to try with 2.9.21? 

> However, for some reason when PowerDNS receives the notify it does not
> start a zone transfer.  I've read, and reread the documentation at
> doc.powerdns.com, but can't find or understand how this is suppose to
> work.  Is a notify received by PowerDNS suppose to initiate an AXFR?

Most definitely. What is probably happening is that your slave loop is
saturated.

> One way to work around this for now, I suppose is, to set my
> slave-cycle-interval to something much lower - but I've got over 150k
> domains on this platform, and checking up on them every 30 minutes is
> not really an option.  I also want zone transfers to happen immediately.
>  Is this possible?

Yes, it should most definitely be possible. Do you actually have 150k slave
zones? What is probably happening is that the slave loop is continuously
polling the state of 150k zones, or trying to transfer them, which causes
the loop to take a few hours to run - which is why your system is reacting
so slowly.

Please let me know if this description of your configuration is correct - I
know there is a powerdns user out there that used to run into a similar
problem, and they solved it.

	Bert

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