Hi Felix, This change won't trigger any rebalancing. It will prevent older clients from connecting, but since this isn't a crush tunable it won't directly affect data placement. Best, Dan On Wed, Nov 30, 2022, 12:33 Stolte, Felix <f.stolte@xxxxxxxxxxxxx> wrote: > Hey guys, > > our ceph cluster is on pacific, but started on jewel years ago. While i > was going through the logs of the mrg daemon i stumbled about the following > entry: > > ========= > [balancer ERROR root] execute error: r = -1, detail = min_compat_client > jewel < luminous, which is required for pg-upmap. Try 'ceph osd > set-require-min-compat-client luminous' before using the new interface > ========= > > I could confirm that with `ceph osd get-require-min-compat-client` my > value is still value. Reading the docs it looks to me, we really want to > set this to luminous to benefit from a better pg distribution. My question > for you is the following: > > Do I have to expect a major rebalancing after applying the 'ceph osd > set-require-min-compat-client luminous‘ command, affecting my cluster IO? > > All my daemons are on pacific and all clients at least on nautilus. > > Thanks in advance and best regards > Felix > > > --------------------------------------------------------------------------------------------- > > --------------------------------------------------------------------------------------------- > Forschungszentrum Juelich GmbH > 52425 Juelich > Sitz der Gesellschaft: Juelich > Eingetragen im Handelsregister des Amtsgerichts Dueren Nr. HR B 3498 > Vorsitzender des Aufsichtsrats: MinDir Volker Rieke > Geschaeftsfuehrung: Prof. Dr.-Ing. Wolfgang Marquardt (Vorsitzender), > Karsten Beneke (stellv. Vorsitzender), Prof. Dr.-Ing. Harald Bolt, > Dr. Astrid Lambrecht, Prof. Dr. Frauke Melchior > > --------------------------------------------------------------------------------------------- > > --------------------------------------------------------------------------------------------- > > _______________________________________________ > ceph-users mailing list -- ceph-users@xxxxxxx > To unsubscribe send an email to ceph-users-leave@xxxxxxx > _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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