I am seeing very varying delay between my master notifying and the slaves updating:
08-Mar-2022 00:12:54.641 zone halasz.eu/IN: sending notifies (serial 2022030427)
08-Mar-2022 01:24:45.256 client @0x7ff25662fd70 <masterIP>#48501 (<mydomain>.eu): transfer of '<mydomain>.eu/IN': AXFR started (serial 2022030427)
08-Mar-2022 01:24:45.256 client @0x7ff25662fd70 <masterIP>#48501 (<mydomain>.eu): transfer of '<mydomain>.eu/IN': AXFR ended: 1 messages, 53 records, 3813 bytes, 0.001 secs (3813000 bytes/sec) (serial 2022030427)
...
10-Mar-2022 21:15:39.044 zone halasz.eu/IN: sending notifies (serial 2022030431)
10-Mar-2022 23:31:32.781 client @0x7f5ddd013f70 <masterIP>#56396 (<mydomain>.eu): transfer of '<mydomain>.eu/IN': AXFR started (serial 2022030431)
10-Mar-2022 23:31:32.781 client @0x7f5ddd013f70 <masterIP>#56396 (<mydomain>.eu): transfer of '<mydomain>.eu/IN': AXFR ended: 1 messages, 53 records, 3813 bytes, 0.001 secs (3813000 bytes/sec) (serial 2022030431)
Is it common to see 1-2h between notify and transfer? Some times I am even seeing no transfer at all after a notify...
I wanted to implement a hidden master config with my firewall updating a record once every week or so in the master, then expecting a transfer, but this delay is way too much for my usecase.