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

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rbd: error: image still has watchers

  V6 t  [6 S3 i' e; ~) C/ M5 _2021-06-09 11:07:10.268 7f106f7fe700 -1 librbd::image::PreRemoveRequest: 0x55a195e2a990 handle_exclusive_lock: cannot obtain exclusive lock - not removing
. c6 w( h, D; Y0 F+ J9 RRemoving 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.

# ]- m6 |0 b2 E解决办法：
经过排查应该是有虚机在使用。
" b  w; ^6 V+ S: o

admin

rbd snap list 0fa46015-aa49-438d-9f63-42b0ade623b5 -p images
( X# _! s- {6 w, D, ^, jrbd snap unprotect images/06612a88-8e05-41b3-8e75-e29351dff412@snap
rbd snap purge 06612a88-8e05-41b3-8e75-e29351dff412 -p images
, T( J- h$ [$ A7 h  e* `: vrbd remove 06612a88-8e05-41b3-8e75-e29351dff412  -p images

admin

[root@host09 ~]# rbd info -p images 5f9362c5-62c7-481d-bd90-b82fcfcb973a
rbd image '5f9362c5-62c7-481d-bd90-b82fcfcb973a':
$ d1 ^6 Q2 N' j% V0 `' P1 s' D        size 4 GiB in 512 objects
" j9 ?: A  J) W3 w/ X- H5 \        order 23 (8 MiB objects)
5 L. K2 l1 h  h6 A9 x1 x* x        snapshot_count: 1
# V7 _6 T( Y/ q- }; `  w  m        id: 6f72385bf8fd
: Y0 [. w6 g. J        block_name_prefix: rbd_data.6f72385bf8fd
# ~) t3 Q" X7 V8 K3 n7 e3 n1 g8 _        format: 2
9 S$ L/ T- A* Y3 j* P2 T: u        features: layering, exclusive-lock, object-map, fast-diff, deep-flatten
        op_features:
6 ?5 j4 i3 l+ P        flags:
" Y$ ^9 M2 a* _; B- L+ w' ?8 I( V        create_timestamp: Wed Jun  2 13:37:44 2021
9 a6 ?7 a2 N) {4 U0 l$ c        access_timestamp: Wed Jun  2 13:37:44 2021
        modify_timestamp: Wed Jun  2 13:37:44 2021
: Z: t) O  X  N8 K" O" o[root@host09 ~]# rbd snap list 5f9362c5-62c7-481d-bd90-b82fcfcb973a -p images
SNAPID NAME SIZE  PROTECTED TIMESTAMP               
1 q$ U9 t2 E# B0 X     4 snap 4 GiB yes       Wed Jun  2 13:39:09 2021
/ y6 U# R, f- B8 A2 O* N4 _[root@host09 ~]# rbd snap unprotect images/5f9362c5-62c7-481d-bd90-b82fcfcb973a@snap
5 ~# i1 n9 f& ]  h[root@host09 ~]# rbd snap purge 5f9362c5-62c7-481d-bd90-b82fcfcb973a -p images
6 p- b& d2 w* J1 T# k$ URemoving all snapshots: 100% complete...done.
! `/ i1 U/ X; [5 x[root@host09 ~]# rbd rm 5f9362c5-62c7-481d-bd90-b82fcfcb973a -p images
Removing image: 100% complete...done.