Slight clarification: to disable these features on existing images, you should run the following:
rbd feature disable <image-spec> deep-flatten,fast-diff,object-map,exclusive-lock
(note the commas instead of the spaces when disabling multiple features at once).
--
Jason
On Thu, Apr 21, 2016 at 4:48 AM, Ilya Dryomov <idryomov@xxxxxxxxx> wrote:
On Thu, Apr 21, 2016 at 11:41 AM, Mika c <mika.leaf666@xxxxxxxxx> wrote:
> Hi xizhiyong,
> Thanks for your infomation. I am using Jewel right now(10.1.2), the
> setting "rbd_default_features = 3" not working for me.
> And this setting will enable "exclusive-lock, object-map, fast-diff,
> deep-flatten" features.
Setting "rbd default features = 3" will ensure that new images are
created with only layering and stripingv2 features enabled. To disable
exclusive-lock, object-map, etc on the already created image, you have
to use "rbd feature disable".
Where are you setting it? It has to be set in the client-side
ceph.conf, as it's the client who decides which feature bits to enable
on creation. Setting it on the OSDs will have no effect.
Thanks,
Ilya
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