works fine with kernel 4.6 for me. from doc: http://docs.ceph.com/docs/master/rados/operations/crush-map/#crush-tunables it should works with kernel 4.5 too. I don't known if they are any plan to backport last krbd module version to kernel 4.4 ? ----- Mail original ----- De: "한승진" <yongiman@xxxxxxxxx> À: "ceph-users" <ceph-users@xxxxxxxxxxxxxx> Envoyé: Jeudi 20 Octobre 2016 05:31:49 Objet: When the kernel support JEWEL tunables? Hi all, When I try to mount rbd through KRBD, it failed because of mismatch features. The Client's OS is Ubuntu 16.04 and kernel is 4.4.0-38 My original CRUSH tunables is below. root@Fx2x1ctrlserv01:~# 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": 1, "chooseleaf_stable": 1, "straw_calc_version": 1, "allowed_bucket_algs": 54, "profile": "jewel", "optimal_tunables": 1, "legacy_tunables": 0, "minimum_required_version": "jewel", "require_feature_tunables": 1, "require_feature_tunables2": 1, "has_v2_rules": 0, "require_feature_tunables3": 1, "has_v3_rules": 0, "has_v4_buckets": 1, "require_feature_tunables5": 1, "has_v5_rules": 0 } I disabled tunables5 feature in CRUSH MAP. # begin crush map tunable choose_local_tries 0 tunable choose_local_fallback_tries 0 tunable choose_total_tries 50 tunable chooseleaf_descend_once 1 tunable chooseleaf_vary_r 1 tunable chooseleaf_stable 0 tunable straw_calc_version 1 tunable allowed_bucket_algs 54 Finally, the crush tunables became like hammer root@Fx2x1ctrlserv01:~/crushmap# 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": 1, "chooseleaf_stable": 0, "straw_calc_version": 1, "allowed_bucket_algs": 54, "profile": "hammer", "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": 1, "has_v3_rules": 0, "has_v4_buckets": 1, "require_feature_tunables5": 0, "has_v5_rules": 0 } After that, I could mount a rbd using KRBD When can I expect the KRBD support feature_tunables5 ? Thanks for your help. John Haan _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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