On Thu, Jan 25, 2018 at 11:59:06PM +0100, Lionel Debroux wrote:
the vast majority of the ~170 reverse dependencies of libdb5.3 listed by `apt-cache rdepends libdb5.3` on sid will require (much) more work to get rid of that dependency, with impact on backwards compatibility... Among those packages are: [...] slapd
The BDB-based backends are already deprecated upstream in favour of LMDB, so when the time comes I'm happy to forcibly migrate the remaining users on upgrade. At that point we can simply stop building the module, possibly even in the same version where we force the migration.
There are still a few cases where LMDB may not be entirely satisfactory: databases containing a lot of aliases, or workloads that happen to cause a lot of fragmentation in LMDB. LMDB 1.0/OpenLDAP 2.5 will have some improvements in these areas. (No ETA from upstream at this time.)
Hope this helps, or at least marks slapd as "minor" on your list.