On 08Mar23 17:48+0100, Meike Stone wrote: > Oh my god, almost a year has passed - now finally our department wants > to migrate to the latest version 2.5.14. I'm responsible for the > Master LDAP-Server, but there are a few ro-replicas in other > departments where I'm not responsible - and I have no access.
That's an unfortunate condition. > Is it possible to migrate the master server to the new version and > update the replicas (running 2.4.59) later, independent from the > master (migration)? Are there any problems to be expected? I can tell from my recent experiences: I upgraded our infrastructure from 2.4.48 to 2.6.3 and had syncrepl (no delta sync) running between different slapd versions; where sync-consumers where first upgraded to 2.6.3 and sync-providers remained on 2.4.48. Upgrade was done by synching a fresh copy of the DB. After that, the two providers (mirror pair) went to 2.6.3 in the same manner. I tested all this in advance before doing the stunt on production. Went all fine here with zero downtime and slapcat/add was not used. back-mdb was already in place, but maybe this procedure might give you an idea when thinking about upgrading your systems. And just to repeat that previous and important paragraph: I tested everthing in advance so I felt confident while doing it during production. I suggest you do testing as well. HIH, -- Bastian Tweddell Juelich Supercomputing Centre ------------------------------------------------------------------------------- ------------------------------------------------------------------------------- Forschungszentrum Juelich GmbH 52425 Juelich Sitz der Gesellschaft: Juelich Eingetragen im Handelsregister des Amtsgerichts Dueren Nr. HR B 3498 Vorsitzender des Aufsichtsrats: MinDir Stefan Müller Geschaeftsfuehrung: Prof. Dr.-Ing. Wolfgang Marquardt (Vorsitzender), Karsten Beneke (stellv. Vorsitzender), Dr. Ir. Pieter Jansens, Prof. Dr. Astrid Lambrecht, Prof. Dr. Frauke Melchior ------------------------------------------------------------------------------- -------------------------------------------------------------------------------
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