On Nov 27, 2015 3:34 AM, "NEVEU Stephane" <stephane.ne...@thalesgroup.com> wrote: > > Ok, I think I got it. It seems to come from here : > > tracker.ceph.com/issues/6047 > > > > I’m trying to snapshot an image while I previously made a snapshot of my pool… whereas it just works fine when using a brand new pool. I’m using ceph v0.80.10 on Ubuntu 14.04. As I see, it has been patched since dumpling. Could it be a regression ?
Pool snapshots and the "self-managed" snapshots used by rbd are incompatible. You have to pick one or the other on each pool. > > > > > > > > De : ceph-users [mailto:ceph-users-boun...@lists.ceph.com] De la part de NEVEU Stephane > Envoyé : jeudi 26 novembre 2015 15:49 > À : ceph-users@lists.ceph.com > Objet : [ceph-users] rbd_inst.create > > > > Hi all, > > > > I’m using python scripts to create rbd images like described here http://docs.ceph.com/docs/giant/rbd/librbdpy/ > > rbd_inst.create(ioctx, 'myimage', size, old_format=False, features=1) seems to create a layering image > > rbd_inst.create(ioctx, 'myimage', size, old_format=False, features=2) seems to create a stripped image > > > > Setting up “rbd default format =2” in ceph.conf and just using the following (without feature=x) > > rbd_inst.create(ioctx, 'myimage', size) seems to create a layered + stripped image > > > > If someone could point me to the documentation about those bitmasks (features), that would be great J I cannot find it. > > > > Moreover, when my images are created this way (using rbd_inst.create with python), no way to snapshot an image ! > > #rbd snap create rbd/myimage@snap1 > > …. -1 librbd: failed to create snap id: (22) Invalid argument > > > > Same thing with img.create_snap(snap) in python, snapshots are not created. > > > > > > > > > > [@@ THALES GROUP INTERNAL @@] > > > > > _______________________________________________ > ceph-users mailing list > ceph-users@lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >
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