it works Thanks > On 17 Sep 2020, at 15:17, Ilya Dryomov <idryomov@xxxxxxxxx> wrote: > > On Thu, Sep 17, 2020 at 1:56 PM Marc Boisis <marc.boisis@xxxxxxxxxx <mailto:marc.boisis@xxxxxxxxxx>> wrote: >> >> >> Hi, >> >> I had to map a rbd from an ubuntu Trusty luminous client on an octopus cluster. >> >> client dmesg : >> feature set mismatch, my 4a042a42 < server's 100004a042a42, missing 1000000000000 >> >> I downgrade my osd tunable to bobtail but it still doesn't work > > Hi Marc, > > Right, that's not enough in your case. > >> >> ceph osd crush show-tunables >> { >> "choose_local_tries": 0, >> "choose_local_fallback_tries": 0, >> "choose_total_tries": 50, >> "chooseleaf_descend_once": 1, >> "chooseleaf_vary_r": 0, >> "chooseleaf_stable": 0, >> "straw_calc_version": 1, >> "allowed_bucket_algs": 22, >> "profile": "bobtail", >> "optimal_tunables": 0, >> "legacy_tunables": 0, >> "minimum_required_version": "hammer", >> "require_feature_tunables": 1, >> "require_feature_tunables2": 1, >> "has_v2_rules": 0, >> "require_feature_tunables3": 0, >> "has_v3_rules": 0, >> "has_v4_buckets": 1, > > This is the problem. straw2 buckets require CRUSH_V4 feature bit. > If you don't want to upgrade the kernel on the client, you would need > to convert straw2 buckets to legacy straw buckets by manually editing > your CRUSH map. > > Thanks, > > Ilya _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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