[Pdns-users] Automatically delete zones that are deleted on Supermaster
s.posner at telekom.de
Fri Nov 9 15:44:26 UTC 2012
> > Many protocols for distribution of data have a certain ordering and an acknowledgement
> > mechanism. NOTIFY does have an acknowledgement mechanism (but PowerDNS masters don't
> > do a lot with it) but no ordering. It's easier to lose things with NOTIFY than with
> > other replication protocols.
> The problem with that approach is, using backend-specific replication "marries" one
> to that particular technology, as it is backend-specific.
> The question is not one of "how much does it cost to get the technology in", but
> "how much does it cost to get it out".
> It almost sounds like pdns should or could be doing more with the NOTIFY message. Or no?
If you are afraid of losing a notify, you are free to force your Supermaster
to periodically notify all Superslaves about *all* zones. If Superslave hasn't
yet heard of a zone due to a missed NOTIFY, it'll pull it from the master.
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