On Thu, May 12, 2016 at 4:37 PM, Andrey Shevel <shevel.andrey@xxxxxxxxx> wrote:
> Thanks a lot.
>
> I tried
>
> [ceph@ceph-client ~]$ ceph osd crush tunables hammer.
>
> Now I have
>
>
> [ceph@ceph-client ~]$ 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": "firefly",
> "require_feature_tunables": 1,
> "require_feature_tunables2": 1,
> "has_v2_rules": 0,
> "require_feature_tunables3": 1,
> "has_v3_rules": 0,
> "has_v4_buckets": 0,
> "require_feature_tunables5": 0,
> "has_v5_rules": 0
> }
>
>
>
> and the mount command for cephfs does work now fine
>
> sudo mount -t ceph 10.10.1.11:6789:/ /mnt/mycephfs -o
> name=admin,secretfile=/etc/ceph/admin.key
>
> [ceph@ceph-client ~]$ mount | grep ceph
> 10.10.1.11:6789:/ on /mnt/mycephfs type ceph
> (rw,relatime,name=admin,secret=<hidden>)
>
> It was NOT working before!
>
>
> However, still :-(
>
> [ceph@ceph-client ~]$ sudo rbd map rbd/mycephrbd --id admin --keyfile
> /etc/ceph/admin.key
> rbd: sysfs write failed
> rbd: map failed: (6) No such device or address
Do
$ rbd feature disable mycephrbd
deep-flatten,fast-diff,object-map,exclusive-lock
to disable features unsupported by the kernel client. If you are using the
kernel client, you should create your images with
$ rbd create --size <size> --image-feature layering <image-name>
or add
rbd default features = 3
to ceph.conf on the client side. (Setting rbd default features on the
OSDs will have no effect.)
Thanks,
Ilya
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