计算节点重启后虚机无法正常运行 修复OpenStack集群重启，导致虚拟机启动失败

admin

根据提示查询打印的信息

[root@ceph1 ~]# dmesg | tail
[10440.462708] rbd: image mytest: image uses unsupported features: 0x3c
# M1 {- [" k6 S' S  v4 d3 R这个地方提示的很清楚了，不支持的属性0x3c，0x3c是16进制的数值，换算成10进制是3*16+12=60
60的意思是不支持：

32+16+8+4 = exclusive-lock, object-map, fast-diff, deep-flatten
; {" ^. @9 r  x) b; [* }% a也就是不支持这些属性，现在动态关闭这些属性
关闭这些属性

# q* W- h- L) Y, u! m, ^$ J! g2 krbd feature disable {poolname}/{imagename} {feature}
' f8 m4 i0 F" `' M. Z4 L* r/ F如果不想动态的关闭，那么在创建rbd之前，在配置文件中设置这个参数即可
4 O6 r6 d& n/ g( Q/ t
6 x# b, l" \/ P4 H, \rbd_default_features = 3
关于属性支持的，目前到内核4.6仍然只支持
layering,striping = 1 + 2
  o% \- A4 l" q# L: `这两个属性

admin

[root@compute01 ~]# rbd -p vms ls |grep fb1cbc25-dc18-4e8f-99f8-5db929569883
& L/ Z! |* n- J6 v. L9 Jvolume-fb1cbc25-dc18-4e8f-99f8-5db929569883
# ~! S; v4 F2 H1 d% D[root@compute01 ~]# rbd -p vms info volume-fb1cbc25-dc18-4e8f-99f8-5db929569883
rbd image 'volume-fb1cbc25-dc18-4e8f-99f8-5db929569883':
. Q% K1 }6 R5 R0 P& S        size 80 GiB in 20480 objects
/ L, u" _* K* ?; s# E# j6 p        order 22 (4 MiB objects)
        snapshot_count: 0
        id: 38dd3abc54d56
0 n" }' m$ x; C) d9 ^        block_name_prefix: rbd_data.38dd3abc54d56
        format: 2
        features: layering, exclusive-lock, object-map, fast-diff, deep-flatten
        op_features:
1 [% Q  H- h6 b6 ?. `6 X, z* |        flags:
        create_timestamp: Thu Jul  1 16:59:55 2021
6 c- V1 L8 D. U# D* t. ?- v  j        access_timestamp: Thu Jul  1 16:59:55 2021
/ q0 ?5 ?; {* c4 n        modify_timestamp: Thu Jul  1 16:59:55 2021
        parent: images/09de3444-8be6-41f3-b91f-6091afdb56b0@snap
8 _, {7 P2 ], O( P" r2 _3 F        overlap: 4 GiB
: G; h) V/ g1 V; h! H0 I8 M, C: T. G! G[root@compute01 ~]# rbd feature disable exclusive-lock object-map fast-diff deep-flatten --image volume-fb1cbc25-dc18-4e8f-99f8-5db929569883  -p vms
# d+ e% S" f0 p[root@compute01 ~]# rbd showmapped
[root@compute01 ~]# rbd -p vms info volume-fb1cbc25-dc18-4e8f-99f8-5db929569883
3 |% C1 C1 L/ f8 V9 M1 krbd image 'volume-fb1cbc25-dc18-4e8f-99f8-5db929569883':
        size 80 GiB in 20480 objects
  p: _4 \5 l- w( d        order 22 (4 MiB objects)
        snapshot_count: 0
. F* h/ k2 G, T& l- [        id: 38dd3abc54d56
& F  I/ g* T8 m+ i$ D) ^        block_name_prefix: rbd_data.38dd3abc54d56
        format: 2
        features: layering
: F% P9 G4 y: P5 \9 j% _# u0 E/ Q        op_features:
        flags:
! \. {8 j6 I% R7 X- ]        create_timestamp: Thu Jul  1 16:59:55 2021
+ L! K1 P+ Q, A; U3 O        access_timestamp: Thu Jul  1 16:59:55 2021
' V' J! a1 b& A2 T- c" b9 u6 p( ]        modify_timestamp: Thu Jul  1 16:59:55 2021
! l- l8 {  n$ C6 \        parent: images/09de3444-8be6-41f3-b91f-6091afdb56b0@snap
        overlap: 4 GiB
[root@compute01 ~]# ceph daemon mon.`hostname -s` config show  | grep rbd_default_features
, {+ _4 `5 E9 S    "rbd_default_features": "3",

admin

[root@compute01 ~]# rbd -p vms ls |grep 6b44b22d-cd07-429c-883a-1a38ebdf8415
volume-6b44b22d-cd07-429c-883a-1a38ebdf8415
. c1 [7 K5 L' M7 @[root@compute01 ~]# rbd -p vms info volume-6b44b22d-cd07-429c-883a-1a38ebdf8415
rbd image 'volume-6b44b22d-cd07-429c-883a-1a38ebdf8415':
2 f- N. ?5 c; Y! t( R3 y9 ^+ V' V        size 50 GiB in 12800 objects
5 R7 B9 R& L1 t- M( I$ E2 l$ |        order 22 (4 MiB objects)
* p) [2 v5 O# D        snapshot_count: 0
        id: 2aab40cfafa34
        block_name_prefix: rbd_data.2aab40cfafa34
        format: 2
        features: layering, exclusive-lock, object-map, fast-diff, deep-flatten
        op_features:
        flags:
2 g3 b2 @* m! f7 M1 h9 e        create_timestamp: Wed Jun 30 12:32:57 2021
        access_timestamp: Wed Jun 30 12:32:57 2021
        modify_timestamp: Wed Jun 30 12:32:57 2021
        parent: images/059f3ad6-9591-462c-93e0-caec5f159a8d@snap
        overlap: 4 GiB
* ~5 x+ y) J9 l* K% ~5 T! u[root@compute01 ~]# rbd feature
disable  enable   
7 W; P& x% \- T! [! z[root@compute01 ~]# rbd feature disable exclusive-lock object-map fast-diff deep-flatten --image vms/volume-6b44b22d-cd07-429c-883a-1a38ebdf8415
$ `9 o' a1 J; I- ~2 G* I0 L& h[root@compute01 ~]# rbd -p vms info volume-6b44b22d-cd07-429c-883a-1a38ebdf8415
rbd image 'volume-6b44b22d-cd07-429c-883a-1a38ebdf8415':
        size 50 GiB in 12800 objects
! e# t$ y( [; V: E, j        order 22 (4 MiB objects)
        snapshot_count: 0
        id: 2aab40cfafa34
        block_name_prefix: rbd_data.2aab40cfafa34
        format: 2
2 c  K4 L2 h8 S. ~: J9 v        features: layering
- H+ D# n! a0 _5 |# e        op_features:
        flags:
* z) ~; e8 e) ~        create_timestamp: Wed Jun 30 12:32:57 2021
        access_timestamp: Wed Jun 30 12:32:57 2021
        modify_timestamp: Wed Jun 30 12:32:57 2021
6 @4 V/ v# t' E+ F) o4 R        parent: images/059f3ad6-9591-462c-93e0-caec5f159a8d@snap
        overlap: 4 GiB

admin

rbd feature disable exclusive-lock object-map fast-diff deep-flatten --image volumes-hdd/volume-92d2f06c-fb75-4948-b7ba-211d2c2a43f7     disabled的第二种做法