rbd: error: image still has watchers ceph删除文件报错

admin

rbd: error: image still has watchers

( o, H1 X  H  E3 j0 @) s2021-06-09 11:07:10.268 7f106f7fe700 -1 librbd::image::PreRemoveRequest: 0x55a195e2a990 handle_exclusive_lock: cannot obtain exclusive lock - not removing
/ j. j4 @# w* @# y8 M, }Removing image: 0% complete...failed.
rbd: error: image still has watchers
This means the image is still open or the client using it crashed. Try again after closing/unmapping it or waiting 30s for the crashed client to timeout.

解决办法：
: n% k$ h- }$ ~0 S: m5 t经过排查应该是有虚机在使用。
6 c' c- A9 C* ~3 k+ F
$ S2 [0 Z2 y4 l/ F

admin

rbd snap list 0fa46015-aa49-438d-9f63-42b0ade623b5 -p images
& G# h' _( O+ v2 D, T4 `rbd snap unprotect images/06612a88-8e05-41b3-8e75-e29351dff412@snap
. W9 S+ d* h% |: Frbd snap purge 06612a88-8e05-41b3-8e75-e29351dff412 -p images
( n) E; j8 @+ v' u, O: Jrbd remove 06612a88-8e05-41b3-8e75-e29351dff412  -p images

admin

[root@host09 ~]# rbd info -p images 5f9362c5-62c7-481d-bd90-b82fcfcb973a
5 N3 b8 d! t7 _1 v! y, N+ v7 ?rbd image '5f9362c5-62c7-481d-bd90-b82fcfcb973a':
. M0 s: G% i" P$ |        size 4 GiB in 512 objects
        order 23 (8 MiB objects)
4 Y. }( ?1 C, q* U3 f        snapshot_count: 1
        id: 6f72385bf8fd
        block_name_prefix: rbd_data.6f72385bf8fd
        format: 2
        features: layering, exclusive-lock, object-map, fast-diff, deep-flatten
        op_features:
; c: F4 X; ]# x        flags:
7 i/ L9 q, f( e, ~( V1 \: u" L        create_timestamp: Wed Jun  2 13:37:44 2021
; m9 B0 w# x$ ~        access_timestamp: Wed Jun  2 13:37:44 2021
; ^3 Z( A. D. q, U9 l* U        modify_timestamp: Wed Jun  2 13:37:44 2021
[root@host09 ~]# rbd snap list 5f9362c5-62c7-481d-bd90-b82fcfcb973a -p images
1 G4 I$ f% @: p( ]8 k. I' Q3 W1 fSNAPID NAME SIZE  PROTECTED TIMESTAMP               
6 K5 g6 E+ N7 u     4 snap 4 GiB yes       Wed Jun  2 13:39:09 2021
[root@host09 ~]# rbd snap unprotect images/5f9362c5-62c7-481d-bd90-b82fcfcb973a@snap
[root@host09 ~]# rbd snap purge 5f9362c5-62c7-481d-bd90-b82fcfcb973a -p images
2 D" q) G3 X3 e' |1 {- i+ IRemoving all snapshots: 100% complete...done.
[root@host09 ~]# rbd rm 5f9362c5-62c7-481d-bd90-b82fcfcb973a -p images
* |8 e, S$ T& `3 l0 |1 W: T7 MRemoving image: 100% complete...done.