Public bug reported:
Description
==================
When the detach disk timeout, and then soft reboot the virtual machine, the
disk that was detach timeout was lost, but it is displayed in nova database and
bind the vm in nova database.
Steps to reproduce
==================
1. create a windows vm，attach a disk to vm. make a big io to the disk.
2. detach disk timeout
3. soft reboot
4. disk is lost
Cause Analysis
==================
Because the detach disk first releases the persist xml now, when the live
detach the disk timeout, the persist xml is also gone.
If the virtual machine is soft rebooted at this time, the virtual machine will
be lost disk because the persistent xml is missing.
def _detach_with_retry(
if persistent_dev:
try:
self._detach_from_persistent(
guest, instance_uuid, persistent_dev, get_device_conf_func,
device_name)
** Affects: nova
Importance: Undecided
Status: New
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Engineering Team, which is subscribed to OpenStack Compute (nova).
https://bugs.launchpad.net/bugs/1942766
Title:
After the detach volume timeout, the disk is lost after soft reboot
Status in OpenStack Compute (nova):
New
Bug description:
Description
==================
When the detach disk timeout, and then soft reboot the virtual machine, the
disk that was detach timeout was lost, but it is displayed in nova database and
bind the vm in nova database.
Steps to reproduce
==================
1. create a windows vm，attach a disk to vm. make a big io to the disk.
2. detach disk timeout
3. soft reboot
4. disk is lost
Cause Analysis
==================
Because the detach disk first releases the persist xml now, when the live
detach the disk timeout, the persist xml is also gone.
If the virtual machine is soft rebooted at this time, the virtual machine
will be lost disk because the persistent xml is missing.
def _detach_with_retry(
if persistent_dev:
try:
self._detach_from_persistent(
guest, instance_uuid, persistent_dev,
get_device_conf_func,
device_name)
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