Itís not a replication setup. The consumer is a relatively ancient proprietary implementation of the syncrepl protocol, over which I have very influence.
I believe the problem is syncprov.c lines 3335 and 3341, which appear to be setting `do_present = SS_PRESENT;` while simultaneously ignoring the value of si->si_nopres. Replacing the lines above with `if ( !si->si_nopres ) do_present = SS_PRESENT;` appears to fix the problem for my use case, and is closer to how the logic worked in previous versions of slapd.
--On Tuesday, March 8, 2022 10:46 AM +0000 firstname.lastname@example.org wrote:
> I have an OpenLDAP server I'm upgrading from 2.4.58 to 2.6.0. The server
> is configured with the syncprov plugin, with "olcSpNoPresent: TRUE".
You'd have to better describe your replication setup. The *only* time
no-present should be set to TRUE is when it's on top of an accesslog
database that's being used by delta-syncrepl, as explicitly stated in the
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