--On Monday, August 2, 2021 12:25 PM +0200 Ulrich Windl Ulrich.Windl@rz.uni-regensburg.de wrote:
Of course Berkely DB cannot upgrade the MDB database; I was talking about the layout versions of Berkeley DB.
I did not misunderstand you. I meant that Berkeley-DB could not do automagic upgrades of its files in case the application-specific format changes.
IIRC in former times with back-bdb and back-hdb there was also sometimes the need to reload BDB files because the slapd-specific layout changed.
Admittedly I never had or needed those. I only noticed changes of hash functions, and those did not need manual intervention.
Don't confuse the underlying database software (LMDB) with the databse backend (slapd-mdb).
The slapd-mdb database backend had a format change that requires a reload. This is, as Michael already noted, no different than when the slapd-bdb or slapd-hdb backends (which made use of BerkeleyDB) had format changes. Those type of format changes always require a reload regardless of the underlying database software being used.
--Quanah
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Quanah Gibson-Mount Product Architect Symas Corporation Packaged, certified, and supported LDAP solutions powered by OpenLDAP: http://www.symas.com