[Pdns-users] MySQL backend serial update but no notify

bert hubert bert.hubert at netherlabs.nl
Thu Mar 27 23:13:16 UTC 2008

On Thu, Mar 27, 2008 at 10:43:02PM +0000, Craig Ward wrote:

> The problem I'm seeing is that updates to resource records (via a web
> interface on top of mysql) update the serial ok, but these changes aren't
> automatically propogated to the slave. Running a pdns monitor I'm not
> seeing any notify requests unless I trigger one manually.

Do you have 'master' enabled in the configuration?

> Whilst writing this email I've actually noticed that the serial number is
> updating on the zone file very often, as in 2 or 3 times every minute!

This usually means PowerDNS is calculating the serial number on the fly
because none was defined in the database.

Can you show: "select * from records where name='example.com' and


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