slave updates to different backend

[Habbie]

is it possible to have slave updates go to a differend backend server.

situation:
backend1, mysql master
backend2, mysql slave of backend1, running powerdns.

If the Slave zone is transfered, the local backend2 mysql gets updated.
Updates should be done only on the master mysql db to avoid duplicate keys etc.

Maybe a good feature request, or maybe already possible ?

[Habbie]

Author: malte@g-house.de
You shouldn't configure your 2nd Server as Slave.

you've mixed up 2 concepts.

1. Master 2 Slave replication using mysql replication (master->slave with myIsam)
   then in Fact you've got 2 primary ns with the exact same data.
   There is no need to make zone-transfers because you store your data in
   the same place... in the same db.
2. You use a master dns & slave dns server where both are running local mysql's as
   backend where each server has its own db (and then there's no need to use mysql
   on the 2nd Server - you can use any backend which is fully afxr-compatible)
   To use the Supermaster - Idea - you'd have to use a supermaster-capable backend
   such as gmysql.
   Now if a change in your Master's data occured a notify will be sent to all slave
   servers. And then depending on your Config the slave will automatically get the
   data and add the new zone or whatever (zone - adding only with super-master ...)

So you've to differentiate between mysql - master/slave and
Dns - Master + Slave Operations

if your data is the same on all hosts through replication, rsync or whatever external mechanism there's no need to let powerdns not update there local db if it is a slave
which in fact means, the server has its very own db.

[Habbie]

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