Public bug reported:
It's not the rescue image volume,it‘s the instance attach volume(ceph rbd
device,maybe vdb) before rescue.
After unrescue the instance,if try to del a detached the volume vbd will go
wrong.
Specifically:
1.the ceph rdb watchers is still watcher
use the cmd-line: rbd status volumes/volume-uuid you will see that .
When in this state,the rbd cannot be rm
2.the database was updated the volumes
info,status->available,attach_status->detached.
3.the instance still can see and use this rbd ,you can format、mount and r/w the
disk.But if you reboot the instance , this disk will disappear.
the tempest case and error report:
tempest.api.compute.servers.test_server_rescue_negative.ServerRescueNegativeTestJSON.test_rescued_vm_detach_volume
ERROR cinder.volume.manager [req-xxx] Unable to delete busy volume
Reproduce the steps:
1.nova volume-attach instance-uuid volume-uuid
2.nova rescue --password admin --image image-uuid instance-uuid
3.nova unrescue instance-uuid
4.nova volume-detach instance-uuid volume-uuid
and you can see the ceph rdb status and check the rbd still watcher or not
5.if the rbd still watcher ,any operation to del the volume , will fail。
** Affects: nova
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1631692
Title:
After unrescue a instance，del a detached rbd volume will go wrong
Status in OpenStack Compute (nova):
New
Bug description:
It's not the rescue image volume,it‘s the instance attach volume(ceph rbd
device,maybe vdb) before rescue.
After unrescue the instance,if try to del a detached the volume vbd will go
wrong.
Specifically:
1.the ceph rdb watchers is still watcher
use the cmd-line: rbd status volumes/volume-uuid you will see that .
When in this state,the rbd cannot be rm
2.the database was updated the volumes
info,status->available,attach_status->detached.
3.the instance still can see and use this rbd ,you can format、mount and r/w
the disk.But if you reboot the instance , this disk will disappear.
the tempest case and error report:
tempest.api.compute.servers.test_server_rescue_negative.ServerRescueNegativeTestJSON.test_rescued_vm_detach_volume
ERROR cinder.volume.manager [req-xxx] Unable to delete busy volume
Reproduce the steps:
1.nova volume-attach instance-uuid volume-uuid
2.nova rescue --password admin --image image-uuid instance-uuid
3.nova unrescue instance-uuid
4.nova volume-detach instance-uuid volume-uuid
and you can see the ceph rdb status and check the rbd still watcher or not
5.if the rbd still watcher ,any operation to del the volume , will fail。
To manage notifications about this bug go to:
https://bugs.launchpad.net/nova/+bug/1631692/+subscriptions
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