Because the LDAP backend lacks the getDomainInfo backend, a manual notify via pdns_control does not work. However this is the only way atm to notify slave DNS servers of domains in LDAP changed.
See also: http://mailman.powerdns.com/pipermail/pdns-users/2005-August/002568.html
Attachment 'Patch adding the missing getDomainInfo implementation' (ldapbackend-getdomaininfo.patch) https://gist.github.com/5466704
Sent to the LDAP guy and the list
I have attached the patch that I received by email (I think) and tested it. It works fine
and solves the problem.