Hi! I have upgraded from nsd 4.3.5 to 4.6. After the restart of the server, it serves an old zone. For example:
NSD 4.3.5: 07:31:13 nsd-pl[811535]: notify for kepno.pl. from X.X.X.20 serial 1660716049 07:31:13 nsd-pl[811535]: notify for kepno.pl. from XXXX:XXXX:9::5 serial 1660716049 07:31:13 nsd-pl[3084]: xfrd: zone kepno.pl committed "received update to serial 1660716049 at 2022-08-17T07:31:13 from X.X.X.20 TSIG verified with key foobar" 07:31:13 nsd-pl[3089]: zone kepno.pl. received update to serial 1660716049 at 2022-08-17T07:31:13 from X.X.X.20 TSIG verified with key foobar of 2403 bytes in 9.8e-05 seconds 07:31:13 nsd-pl[811535]: notify for kepno.pl. from X.X.X.4 serial 1660716049 07:31:13 nsd-pl[811535]: notify for kepno.pl. from XXXX:XXXX:8::5 serial 1660716049 07:31:14 nsd-pl[3084]: zone kepno.pl serial 1660716048 is updated to 1660716049 07:46:24 nsd-pl[3089]: writing zone kepno.pl to file kepno.pl.zone 09:46:22 nsd-pl[1008051]: notify for kepno.pl. from XXXX:XXXX:9::5 serial 1660716050 09:46:22 nsd-pl[1008051]: notify for kepno.pl. from X.X.X.20 serial 1660716050 09:46:22 nsd-pl[3084]: xfrd: zone kepno.pl committed "received update to serial 1660716050 at 2022-08-17T09:46:22 from XXXX:XXXX:9::5 TSIG verified with key foobar" 09:46:22 nsd-pl[1008051]: notify for kepno.pl. from XXXX:XXXX:8::5 serial 1660716050 09:46:22 nsd-pl[1008051]: notify for kepno.pl. from X.X.X.4 serial 1660716050 09:46:27 nsd-pl[3089]: zone kepno.pl. received update to serial 1660716050 at 2022-08-17T09:46:22 from XXXX:XXXX:9::5 TSIG verified with key foobar of 840 bytes in 0.000108 seconds 09:46:28 nsd-pl[3084]: zone kepno.pl serial 1660716049 is updated to 1660716050 -> NSD 4.3.5 serves serial 1660716050 Now, upgrade to 4.6 and restart NSD: 10:32:04 nsd-pl[1072241]: zone kepno.pl read with success 10:32:04 nsd-pl[1072241]: rehash of zone kepno.pl. with parameters 1 0 12 e831662b2ffa02c1 10:32:10 nsd-pl[1072240]: zone kepno.pl serial 1660716050 is updated to 1660716049 --> Why is the serial going backwards? # nsd-control -c /etc/nsd/nsd-pl.conf zonestatus kepno.pl zone: kepno.pl state: ok served-serial: "1660716049 since 2022-08-17T10:32:10" commit-serial: "1660716050 since 2022-08-17T10:55:43" wait: "1159 sec between attempts" I can fix it with force_transfer: 11:14:25 nsd-pl[1072240]: xfrd: zone kepno.pl committed "received update to serial 1660716050 at 2022-08-17T11:14:25 from X.X.X.4 TSIG verified with key foobar" 11:14:26 nsd-pl[1072241]: rehash of zone kepno.pl. with parameters 1 0 12 e831662b2ffa02c1 11:14:26 nsd-pl[1072241]: zone kepno.pl. received update to serial 1660716050 at 2022-08-17T11:14:25 from X.X.X.4 TSIG verified with key foobar of 31937 bytes in 0.005712 seconds 11:14:26 nsd-pl[1072240]: zone kepno.pl serial 1660716049 is updated to 1660716050 # nsd-control -c /etc/nsd/nsd-pl.conf zonestatus kepno.pl zone: kepno.pl state: ok served-serial: "1660716050 since 2022-08-17T11:14:25" commit-serial: "1660716050 since 2022-08-17T11:14:25" wait: "279 sec between attempts" Is this a bug or a feature? Thanks Klaus
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