Hello. I am running PowerDNS 2.9.21 with only the BIND backend, as a slave for a number of zones. We have discovered that only some of the zone files on a server refresh, while others do not.
There is no problem transferring any of the zones, and no errors. It is simply that it only knows it needs to check some of them, while ignoring the others. That is, it logs that some zones need checking, and correctly checks each zone on the master and either transfers it or logs that it is fresh. The rest, it simply never does, ever, unless the PowerDNS daemon is restarted or it is forced with 'pdns_control retrieve', and then it does it without problem. We noticed this by checking the timestamps on the bind zone files on the PowerDNS slaves, and then verified the behavior by viewing the logs. I analyzed what was different about the zones that refresh, and found that all of them had a refresh setting of 2400 or less. All the other zones had refresh values higher than that. To test this hypothesis, I went to the master server (which is still running BIND btw) and changed the refresh value for one particular zone, which had not been refreshing, from 7200 to 100, and ran "pdns_control retrieve" on it. Sure enough, less than two minutes after it transferred the zone, it logged that it needed checking, and that it was fresh. I then changed it to 2400, and it has been working fine since. Notice that it had been 7200, which should be two hours, but we found that it had never refreshed after days of uptime. It seems my next step is to set up another test environment and trace this in more detail, but I thought it was worth mentioning here to see if this makes sense to any of you? Is it possible there is a setting I have missed in pdns.conf? Thanks. Brendan _______________________________________________ Pdns-users mailing list [email protected] http://mailman.powerdns.com/mailman/listinfo/pdns-users
