Lionel, Christian, we do have the exactly same trouble as Christian, namely
Christian Eichelmann [Fri, Jan 09, 2015 at 10:43:20AM +0100]: > We still don't know what caused this specific error... and > ...there is currently no way to make ceph forget about the data of this pg > and create it as an empty one. So the only way > to make this pool usable again is to loose all your data in there. I wonder what is the position of ceph developers regarding dropping (emptying) specific pgs? Is that a use case that was never thought of or tested? For us it is essential to be able to keep the pool/cluster running even in case we have lost pgs. Even though I do not like the fact that we lost a pg for an unknown reason, I would prefer ceph to handle that case to recover to the best possible situation. Namely I wonder if we can integrate a tool that shows which (parts of) rbd images would be affected by dropping a pg. That would give us the chance to selectively restore VMs in case this happens again. Cheers, Nico -- New PGP key: 659B 0D91 E86E 7E24 FD15 69D0 C729 21A1 293F 2D24 _______________________________________________ ceph-users mailing list ceph-users@lists.ceph.com http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
