[Pdns-users] MongoDB Backend merged Re: Mongo DB and PowerDNS part 3: Now with DNSSEC
fredan-pdns at fredan.org
Wed May 25 20:25:03 UTC 2011
PowerDNS ask each backend for domains which has a different 'notified_serial'
than 'serial' for the domain.
This function is called getUpdatedMasters(vector<DomainInfo>* domains) and
exists in the source file 'master.cc' for MongoDB backend.
What PowerDNS except after a call to this function is a list of all domains
that has a different serialnumber than notified serialnumber.
Every backend can implement this functionallity differently since PowerDNS
does not know how the information about a domain is stored.
The good part that you asked about this is that I (you!) found a bug which
would not fill out the domains that has a different serial number against the
real serial number. I've sent Bert a patch to be included in the source code
to fix this.
> On 14/4/2011 9:30 ÃÅÃÅ, bert hubert wrote:
> > Hi Fredrik,
> > I have just merged it with the build system based on your latest version.
> > It is part of build 2163, and will be shipped as 'experimental' with
> > version 3.0.
> Hi Fredrik and all,
> I see here: http://doc.powerdns.com/mongo.html that pdns/mongodb
> supports Master functionality. I assume this means that it detects zone
> serial changes and sends Notify messages as needed (and then sends AXFR
> as requested by slaves).
> My question is: how to you implement this functionality (conceptually),
> since Mongo DB (as far as I know) doesn't support triggers?
> Can you provide some feedback on this please?
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