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' E2 g1 k# J% ~$ x; z
& a7 T' S( l& M7 ^7 f[root@ceph1 ~]# dmesg | tail
8 p" {2 W+ R$ r2 Y; i9 i3 z[10440.462708] rbd: image mytest: image uses unsupported features: 0x3c
% v/ }! [6 V8 H* L6 i0 N! m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：

3 ]3 E5 r5 q- T# B) V32+16+8+4 = exclusive-lock, object-map, fast-diff, deep-flatten
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
2 g5 x9 A* |/ `: `, r: {
4 d9 [  C  N- E* J! Jrbd 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
& T  X$ ?! o' H1 |. k
9 C0 |+ `, o! ~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
) F0 |. K# M$ A, [- a2 O/ _这两个属性

admin

[root@compute01 ~]# rbd -p vms ls |grep fb1cbc25-dc18-4e8f-99f8-5db929569883
volume-fb1cbc25-dc18-4e8f-99f8-5db929569883
, K- g' \; b* ^5 g[root@compute01 ~]# rbd -p vms info volume-fb1cbc25-dc18-4e8f-99f8-5db929569883
rbd image 'volume-fb1cbc25-dc18-4e8f-99f8-5db929569883':
+ X* X% Q0 g& @6 l        size 80 GiB in 20480 objects
1 Z' [3 t2 O  u2 q( g        order 22 (4 MiB objects)
        snapshot_count: 0
; @! m7 w0 b9 @        id: 38dd3abc54d56
        block_name_prefix: rbd_data.38dd3abc54d56
        format: 2
+ `$ B3 l% r9 F        features: layering, exclusive-lock, object-map, fast-diff, deep-flatten
        op_features:
        flags:
        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
9 Y* r- g9 ^6 v5 Y1 P3 K        parent: images/09de3444-8be6-41f3-b91f-6091afdb56b0@snap
" e# g1 c4 {# n0 q        overlap: 4 GiB
[root@compute01 ~]# rbd feature disable exclusive-lock object-map fast-diff deep-flatten --image volume-fb1cbc25-dc18-4e8f-99f8-5db929569883  -p vms
# [+ s  S% E: B  B3 R[root@compute01 ~]# rbd showmapped
[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)
( s+ D: U9 ?$ T8 H8 [1 S$ D2 c        snapshot_count: 0
: g4 Q- j5 k3 W$ g# U9 P        id: 38dd3abc54d56
7 u  [# b) I8 E, N  E        block_name_prefix: rbd_data.38dd3abc54d56
        format: 2
9 K: L! ^% I6 d9 d2 `( W3 @0 \        features: layering
4 Q( |( Z: w2 g        op_features:
        flags:
2 T6 ?& ]3 B5 e2 y1 z0 h" x  c        create_timestamp: Thu Jul  1 16:59:55 2021
# I* L; s. H, o8 p' g) f        access_timestamp: Thu Jul  1 16:59:55 2021
        modify_timestamp: Thu Jul  1 16:59:55 2021
( e, s# L4 {! A; }+ S; K        parent: images/09de3444-8be6-41f3-b91f-6091afdb56b0@snap
        overlap: 4 GiB
/ t! U- l# H& B9 W9 i3 Y. i[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
8 a/ ?3 ]3 _8 ~( Lvolume-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':
        size 50 GiB in 12800 objects
$ P  v( h7 V1 D7 u        order 22 (4 MiB objects)
        snapshot_count: 0
        id: 2aab40cfafa34
. L3 s6 Y) R1 G: \, E* _' T        block_name_prefix: rbd_data.2aab40cfafa34
        format: 2
        features: layering, exclusive-lock, object-map, fast-diff, deep-flatten
        op_features:
; A  P; W' Y* {+ H        flags:
        create_timestamp: Wed Jun 30 12:32:57 2021
/ K) B5 z$ e5 L9 T  z1 f- T! ]        access_timestamp: Wed Jun 30 12:32:57 2021
2 b8 V1 X- b) Y" r) L! r        modify_timestamp: Wed Jun 30 12:32:57 2021
        parent: images/059f3ad6-9591-462c-93e0-caec5f159a8d@snap
' `* d# m, X* V. s$ h$ G' l  i* j( ~        overlap: 4 GiB
" w2 ^; R9 ^) j* H; u3 s% f0 K9 f/ M[root@compute01 ~]# rbd feature
1 }' k, T( c9 A" i& _1 X+ jdisable  enable   
4 f$ U- a7 \! J: r% ~) h( l: ^0 e[root@compute01 ~]# rbd feature disable exclusive-lock object-map fast-diff deep-flatten --image vms/volume-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':
        size 50 GiB in 12800 objects
        order 22 (4 MiB objects)
        snapshot_count: 0
        id: 2aab40cfafa34
        block_name_prefix: rbd_data.2aab40cfafa34
        format: 2
. A- P" W8 M8 @; m0 `# k        features: layering
# @8 s6 I: L9 [7 a+ T# A3 Y        op_features:
. p. }: A  R- ?( P        flags:
: D6 ~( s9 Y% _3 d. O+ c        create_timestamp: Wed Jun 30 12:32:57 2021
        access_timestamp: Wed Jun 30 12:32:57 2021
' f5 x' z! g! `6 @        modify_timestamp: Wed Jun 30 12:32:57 2021
5 ^4 @. @# B  L& ?* f        parent: images/059f3ad6-9591-462c-93e0-caec5f159a8d@snap
/ }; m: P4 \3 j; {9 k, e/ z( H& @        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