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
& P* h4 }7 f5 _/ G8 v0 I% H
[root@ceph1 ~]# dmesg | tail
" C( Y  t9 |+ T9 g7 c8 W[10440.462708] rbd: image mytest: image uses unsupported features: 0x3c
3 Z5 J* D* `# V, I% B2 `4 Y2 V* g3 ~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：
. c( m4 \+ a, {. B4 x
$ D% a5 O( b5 |2 R32+16+8+4 = exclusive-lock, object-map, fast-diff, deep-flatten
  n9 s" Z+ f( t  {- b4 E5 j4 u也就是不支持这些属性，现在动态关闭这些属性
9 b3 f' h; `; f4 e1 c8 `5 K" C/ _关闭这些属性

$ B8 w. x) S- v2 Z' Nrbd feature disable {poolname}/{imagename} {feature}
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
" w: ^4 c. [/ Y. Q0 b  s+ W& i
rbd_default_features = 3
3 p' J1 K; h, A& S关于属性支持的，目前到内核4.6仍然只支持
, N$ ^6 c' d+ `- T) {- s% [0 Jlayering,striping = 1 + 2
6 S$ o: R. l0 O8 {+ L  r这两个属性

admin

[root@compute01 ~]# rbd -p vms ls |grep fb1cbc25-dc18-4e8f-99f8-5db929569883
volume-fb1cbc25-dc18-4e8f-99f8-5db929569883
[root@compute01 ~]# rbd -p vms info volume-fb1cbc25-dc18-4e8f-99f8-5db929569883
rbd image 'volume-fb1cbc25-dc18-4e8f-99f8-5db929569883':
        size 80 GiB in 20480 objects
        order 22 (4 MiB objects)
        snapshot_count: 0
0 V0 I4 {1 j- L& ^1 u& p        id: 38dd3abc54d56
" q" q( }, C, E+ M9 }7 h, I$ Y        block_name_prefix: rbd_data.38dd3abc54d56
, h& K) g6 k7 ]9 B9 B/ ^. o% O, c        format: 2
        features: layering, exclusive-lock, object-map, fast-diff, deep-flatten
6 B( x; t3 W9 v9 Y  h        op_features:
        flags:
        create_timestamp: Thu Jul  1 16:59:55 2021
; q5 G. C- Z8 H        access_timestamp: Thu Jul  1 16:59:55 2021
/ c' v; L4 @7 g/ a) D# J" F        modify_timestamp: Thu Jul  1 16:59:55 2021
        parent: images/09de3444-8be6-41f3-b91f-6091afdb56b0@snap
        overlap: 4 GiB
7 H$ J6 t# n5 c" Q9 C) F" D4 u[root@compute01 ~]# rbd feature disable exclusive-lock object-map fast-diff deep-flatten --image volume-fb1cbc25-dc18-4e8f-99f8-5db929569883  -p vms
[root@compute01 ~]# rbd showmapped
8 ?, v2 \) |7 C7 r" ~, W; @[root@compute01 ~]# rbd -p vms info volume-fb1cbc25-dc18-4e8f-99f8-5db929569883
/ N8 d6 g4 o' p7 _rbd image 'volume-fb1cbc25-dc18-4e8f-99f8-5db929569883':
        size 80 GiB in 20480 objects
        order 22 (4 MiB objects)
1 E+ P! Z- n8 g2 p9 y1 T        snapshot_count: 0
        id: 38dd3abc54d56
% u3 u0 @. M3 k9 A  |        block_name_prefix: rbd_data.38dd3abc54d56
% l* c/ `, K( `& i' _) _        format: 2
        features: layering
$ Y9 w2 F: `5 t$ |7 ~        op_features:
        flags:
8 t; U2 l; n0 O! ]6 W6 P- u7 z  o        create_timestamp: Thu Jul  1 16:59:55 2021
        access_timestamp: Thu Jul  1 16:59:55 2021
        modify_timestamp: Thu Jul  1 16:59:55 2021
        parent: images/09de3444-8be6-41f3-b91f-6091afdb56b0@snap
1 J6 k8 W9 }. [& A        overlap: 4 GiB
[root@compute01 ~]# ceph daemon mon.`hostname -s` config show  | grep rbd_default_features
    "rbd_default_features": "3",

admin

[root@compute01 ~]# rbd -p vms ls |grep 6b44b22d-cd07-429c-883a-1a38ebdf8415
! _6 L+ K  R! U! Yvolume-6b44b22d-cd07-429c-883a-1a38ebdf8415
[root@compute01 ~]# rbd -p vms info volume-6b44b22d-cd07-429c-883a-1a38ebdf8415
rbd image 'volume-6b44b22d-cd07-429c-883a-1a38ebdf8415':
) [, f0 Q' m  }% i9 X7 I        size 50 GiB in 12800 objects
        order 22 (4 MiB objects)
  H6 D7 [* X8 x# n0 e        snapshot_count: 0
, A8 C" r, L4 m4 w1 k        id: 2aab40cfafa34
. y: n: L( A4 y1 p: p        block_name_prefix: rbd_data.2aab40cfafa34
  C* Q  p( |+ C# f        format: 2
: \: Y% W' r" Y) n8 n" ~" D$ J* X        features: layering, exclusive-lock, object-map, fast-diff, deep-flatten
        op_features:
        flags:
; u8 F# K% h5 N' H$ m4 F        create_timestamp: Wed Jun 30 12:32:57 2021
1 A& n( p1 }/ r+ l" ^        access_timestamp: Wed Jun 30 12:32:57 2021
        modify_timestamp: Wed Jun 30 12:32:57 2021
, _/ u2 ^( [5 \* i        parent: images/059f3ad6-9591-462c-93e0-caec5f159a8d@snap
& P* O. `# z2 b8 H, }1 O        overlap: 4 GiB
[root@compute01 ~]# rbd feature
disable  enable   
[root@compute01 ~]# rbd feature disable exclusive-lock object-map fast-diff deep-flatten --image vms/volume-6b44b22d-cd07-429c-883a-1a38ebdf8415
) W% @; J4 w8 t' _, D# N[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
1 \0 Q( f: U$ Q# \8 C" K        order 22 (4 MiB objects)
2 l6 z, J2 g! X( z; D- `4 F4 E# j        snapshot_count: 0
        id: 2aab40cfafa34
        block_name_prefix: rbd_data.2aab40cfafa34
        format: 2
        features: layering
        op_features:
        flags:
* ]8 J" e) ?. j; j& Y( L2 v; d6 V        create_timestamp: Wed Jun 30 12:32:57 2021
6 V5 p3 s' F+ U$ |2 _1 e  ^6 t        access_timestamp: Wed Jun 30 12:32:57 2021
8 S; P+ ~( `: m8 u% h1 n/ i: K        modify_timestamp: Wed Jun 30 12:32:57 2021
        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