cinder volume 삭제 불가: rbd volume를 삭제하는 동안 ImageBusy 오류가 발생했습니다.

cinder 오류 로그:

ImageBusy error raised while deleting rbd volume. This may have been caused by a 
connection from a client that has crashed and, if so, may be resolved by retrying the 
delete after 30 seconds has elapsed.

ceph에volume cbb25a66-6743-41f1-b60c-f1c54959770f의watchter를 보십시오.172.16.80.15에서 클라이언트가volume에 연결된 것을 발견하였다

[root@ctrl01]# rbd status volumes/volume-cbb25a66-6743-41f1-b60c-f1c54959770f
Watchers:
    watcher=172.16.80.15:0/2240494846 client.3739308 cookie=139889011630080

연결 프로세스를 보려면 172.16.80.15로 이동하십시오.OpenStack uid가 110fb7b7-9c16-4384-bd7c-d52e2231d5d2이고 172.16.80.15 노드domain이 instance-0000095e인 실례가 이volume에 연결되어 있는지 확인하십시오.
실례 110fb7b7-9c16-4384-bd7c-d52e2231d5d2의 상세한 상황을 보십시오.이 실례가 존재하지 않는 것을 발견하고 instance-0000095e가 실례로 남아 있음을 확인합니다.

[root@ctrl02 ~]# nova show 110fb7b7-9c16-4384-bd7c-d52e2231d5d2
ERROR (CommandError): No server with a name or ID of '110fb7b7-9c16-4384-bd7c-d52e2231d5d2' exists.

instance-0000095e 지우기

[root@com04 ~]# virsh destroy instance-0000095e
Domain instance-0000095e destroyed

[root@com04 ~]# virsh undefine instance-0000095e
Domain instance-0000095e has been undefined

volume 삭제

[root@ctrl02 ~]# cinder delete cbb25a66-6743-41f1-b60c-f1c54959770f
Request to delete volume cbb25a66-6743-41f1-b60c-f1c54959770f has been accepted.