Does the image "tyr-p0/a56eae5f-fd35-4299-bcdc-65839a00f14c" have snapshots? If the deep-flatten feature isn't enabled, the flatten operation is not able to dissociate child images from parents when those child images have one or more snapshots.
On Fri, Aug 4, 2017 at 2:30 PM, Shawn Edwards <lesser.e...@gmail.com> wrote: > I have a child rbd that doesn't acknowledge its parent. this is with Kraken > (11.2.0) > > The misbehaving child was 'flatten'ed from its parent, but now I can't > remove the snapshot because it thinks it has a child still. > > root@tyr-ceph-mon0:~# rbd snap ls > tyr-p0/51774a43-8d67-4d6d-9711-d0b1e4e6b5e9_delete > SNAPID NAME SIZE > 2530 c20a31c5-fd88-4104-8579-a6b3cd723f2b 1000 GB > root@tyr-ceph-mon0:~# rbd children > tyr-p0/51774a43-8d67-4d6d-9711-d0b1e4e6b5e9_delete@c20a31c5-fd88-4104-8579-a6b3cd723f2b > tyr-p0/a56eae5f-fd35-4299-bcdc-65839a00f14c > root@tyr-ceph-mon0:~# rbd flatten > tyr-p0/a56eae5f-fd35-4299-bcdc-65839a00f14c > Image flatten: 0% complete...failed. > rbd: flatten error: (22) Invalid argument > 2017-08-04 08:33:09.719796 7f5bfb7d53c0 -1 librbd::Operations: image has no > parent > root@tyr-ceph-mon0:~# rbd snap unprotect > tyr-p0/51774a43-8d67-4d6d-9711-d0b1e4e6b5e9_delete@c20a31c5-fd88-4104-8579-a6b3cd723f2b > 2017-08-04 08:34:20.649532 7f91f5ffb700 -1 librbd::SnapshotUnprotectRequest: > cannot unprotect: at least 1 child(ren) [1d0bce6194cfc3] in pool 'tyr-p0' > 2017-08-04 08:34:20.649545 7f91f5ffb700 -1 librbd::SnapshotUnprotectRequest: > encountered error: (16) Device or resource busy > 2017-08-04 08:34:20.649550 7f91f5ffb700 -1 librbd::SnapshotUnprotectRequest: > 0x55d69346da40 should_complete_error: ret_val=-16 > 2017-08-04 08:34:20.651800 7f91f5ffb700 -1 librbd::SnapshotUnprotectRequest: > 0x55d69346da40 should_complete_error: ret_val=-16 > rbd: unprotecting snap failed: (16) Device or resource busy > root@tyr-ceph-mon0:~# rbd info tyr-p0/a56eae5f-fd35-4299-bcdc-65839a00f14c > rbd image 'a56eae5f-fd35-4299-bcdc-65839a00f14c': > size 1000 GB in 256000 objects > order 22 (4096 kB objects) > block_name_prefix: rbd_data.1d0bce6194cfc3 > format: 2 > features: layering > flags: > > > _______________________________________________ > ceph-users mailing list > ceph-users@lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > -- Jason _______________________________________________ ceph-users mailing list ceph-users@lists.ceph.com http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
