dns_diff_apply / "del not exact" logging

[Mark Andrews]

Transfer from a single address.  
The IXFR transfer is detecting that a record is being asked to be deleted but it is not present in the zone.  Named will fallback to an AXFR. The logs have been extended recently to provide more details. 

-- 
Mark Andrews

> On 14 Feb 2024, at 18:41, Andreas S. Kerber via bind-users <bind-users at lists.isc.org> wrote:
> 
> Hi,
> 
> since upgrading our secondary to 9.18.24 yesterday, I'm seeing the logging messages below.
> 
> 14-Feb-2024 07:52:24.850 general: error: dns_diff_apply: wur1-ps003.ad01.geXXX/A/IN: del not exact
> 14-Feb-2024 07:53:28.732 general: error: dns_diff_apply: 1.0.e.4.1.1.0.0.2.ip6.arpa/SOA/IN: del not exact
> 14-Feb-2024 07:54:03.827 general: error: dns_diff_apply: ad01.idkXXX/RRSIG/IN: del not exact
> 14-Feb-2024 08:05:18.363 general: error: dns_diff_apply: HRO1-NB041.ad01.geXXX/A/IN: del not exact
> 14-Feb-2024 08:07:25.346 general: error: dns_diff_apply: lc7a5c2o2ur6umdqkvijckprpj74g6qr.ad01.idXXX/RRSIG/IN: del not exact
> 14-Feb-2024 08:17:58.873 general: error: dns_diff_apply: HRO1-NB002.ad01.geXXX/A/IN: del not exact
> 14-Feb-2024 08:18:34.160 general: error: dns_diff_apply: FUS1-MPC120.ad01.chXXX/A/IN: del not exact
> 
> The zone names mentioned are anonymized by me. primary of each zone is some kind of windows server.
> Is this something to worry about? This kind of logging popped up since upgrading the secondary to 9.18.24.
> 
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