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
+ W4 M) `! Q, X' G4 i
( |  ^4 p3 _4 J  a. D[root@ceph1 ~]# dmesg | tail
[10440.462708] rbd: image mytest: image uses unsupported features: 0x3c
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
9 g2 J) }5 I* k# ]+ _60的意思是不支持：
& _/ Q6 f6 `3 ]! H# r
7 @9 t- c2 {$ H% l) ?" {32+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
) _" O* U8 P8 \( l! Q$ e! x* g关闭这些属性
' l; ~# f; H: v3 o( C: g, Q1 V
rbd 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
9 z* M8 z( u' C$ k1 g
rbd_default_features = 3
关于属性支持的，目前到内核4.6仍然只支持
1 }6 }: k( C" b1 f# n* @. w; [layering,striping = 1 + 2
这两个属性

admin

[root@compute01 ~]# rbd -p vms ls |grep fb1cbc25-dc18-4e8f-99f8-5db929569883
volume-fb1cbc25-dc18-4e8f-99f8-5db929569883
3 `* t; i; D3 K$ T1 h/ m$ r% `: X[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
, {& S7 a8 o2 o- n8 w        order 22 (4 MiB objects)
+ u0 U8 K: u) E) v        snapshot_count: 0
+ T5 I& |8 U2 [( Y8 P; ^& }0 l5 W        id: 38dd3abc54d56
        block_name_prefix: rbd_data.38dd3abc54d56
        format: 2
4 _1 b7 E. K4 }+ n/ e        features: layering, exclusive-lock, object-map, fast-diff, deep-flatten
        op_features:
        flags:
        create_timestamp: Thu Jul  1 16:59:55 2021
6 Z4 r# Y3 \4 j) T        access_timestamp: Thu Jul  1 16:59:55 2021
6 ]8 U. O+ M) q3 I        modify_timestamp: Thu Jul  1 16:59:55 2021
        parent: images/09de3444-8be6-41f3-b91f-6091afdb56b0@snap
& F) T# E0 [+ ?) o/ e: R        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
0 _- }$ ?) `  _3 \, z* j: ~[root@compute01 ~]# rbd showmapped
[root@compute01 ~]# rbd -p vms info volume-fb1cbc25-dc18-4e8f-99f8-5db929569883
4 u4 B, P% ?. }7 h' N3 a7 u7 b3 ]6 brbd image 'volume-fb1cbc25-dc18-4e8f-99f8-5db929569883':
        size 80 GiB in 20480 objects
4 N6 A- c, a, C, h. b        order 22 (4 MiB objects)
$ e2 W) T2 S7 d2 s! o        snapshot_count: 0
        id: 38dd3abc54d56
) J5 M6 N& l! M- I  H5 M        block_name_prefix: rbd_data.38dd3abc54d56
6 k- U# Y6 K6 c: x' b        format: 2
        features: layering
" k2 r" {- d3 ^$ G  b) V8 W; _( s        op_features:
" n0 x6 g: s$ S+ Y: `# G        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
        parent: images/09de3444-8be6-41f3-b91f-6091afdb56b0@snap
8 I  p) E# {+ E/ |5 n, d6 M        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
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':
' ^* y4 V4 v1 Y/ m        size 50 GiB in 12800 objects
        order 22 (4 MiB objects)
        snapshot_count: 0
4 G6 F8 E* L3 k3 V0 d  {        id: 2aab40cfafa34
! w* H+ T& Y0 s/ }7 s        block_name_prefix: rbd_data.2aab40cfafa34
8 v7 G% `/ h# L8 [        format: 2
        features: layering, exclusive-lock, object-map, fast-diff, deep-flatten
        op_features:
        flags:
        create_timestamp: Wed Jun 30 12:32:57 2021
: R6 D1 B, `3 Q: T! T; o- _/ }* P        access_timestamp: Wed Jun 30 12:32:57 2021
; ~  }  W# i2 I; ~& c% a/ {9 |        modify_timestamp: Wed Jun 30 12:32:57 2021
        parent: images/059f3ad6-9591-462c-93e0-caec5f159a8d@snap
; G' b$ C0 a& ]' Z" }        overlap: 4 GiB
[root@compute01 ~]# rbd feature
disable  enable   
  w  a, o) x* }1 d6 _% U[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
8 f. ?$ [. z8 d' f: G, N! y) o7 Jrbd 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
4 v* Z. J1 j- q- k: y$ h. N        features: layering
        op_features:
        flags:
( ]# W1 o) f* d! `# v: F        create_timestamp: Wed Jun 30 12:32:57 2021
7 s1 H* t6 H: o& B0 n6 C6 l        access_timestamp: Wed Jun 30 12:32:57 2021
' a* m4 z' a7 o) p) i/ u        modify_timestamp: Wed Jun 30 12:32:57 2021
" X5 Y  ~6 F5 h3 G; o5 t        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