Hi There, On Wed, Aug 3, 2011 at 4:11 PM, Support Desk <[email protected]> wrote: > I am looking into deploying two powerdns Servers on my Network. I would like > both to use a mysql cluster that I have setup as their backend. My question > is, if both servers are letting the MySql cluster do the replication, should > they both be configured as Masters?
If the backend - in this case mysql - is doing the replication itself we are calling it 'Native' mode. You would only need to set master=yes in pdns.conf in order to enable your name servers sending out DNS NOTIFY messages to all servers mentioned as NS records for a zone that has changed recently. In Mysql PowerDNS will then update the last notified_serial column of the domains table in your database. slave=yes will enable PowerDNS to listen to such NOTIFIES and if the domain is of type 'SLAVE' it will then try to AXFR the zone and subsequently update all entries in the records table. Thus enabling either master or slave bears a slight risk that both of your PowerDNS servers will try to update the same column at once. I am not entirely sure how a MySQL cluster would handle this kind of deadlock. Gracefully i'd hope. Stefan _______________________________________________ Pdns-users mailing list [email protected] http://mailman.powerdns.com/mailman/listinfo/pdns-users
