Looks like the regression was introduced in Ocata:
https://review.opendev.org/#/c/319379/
** Changed in: nova
Status: New => Triaged
** Changed in: nova
Importance: Undecided => Low
** Also affects: nova/train
Importance: Undecided
Status: New
** Also affects: nova/stein
Importance: Undecided
Status: New
** Also affects: nova/ocata
Importance: Undecided
Status: New
** Also affects: nova/rocky
Importance: Undecided
Status: New
** Also affects: nova/queens
Importance: Undecided
Status: New
** Also affects: nova/pike
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1857306
Title:
_bury_in_cell0 could not handle instance duplicate exception
Status in OpenStack Compute (nova):
Triaged
Status in OpenStack Compute (nova) ocata series:
New
Status in OpenStack Compute (nova) pike series:
New
Status in OpenStack Compute (nova) queens series:
New
Status in OpenStack Compute (nova) rocky series:
New
Status in OpenStack Compute (nova) stein series:
New
Status in OpenStack Compute (nova) train series:
New
Bug description:
For stable/stein
if there were NoValidHost from scheduler, conductor should create
Instance object in cell0. But I found if there is additional
exception(InstanceExist) in the function, conductor could not catch
the exception which result in instance state stuck in 'scheduling'.
How to reproduce
1. osapi_compute_unique_server_name_scope = True
2. Cellv2
3. Create instance with hostname which previously built and without any valid
host.
Result
1. Conductor does not make instance DB creation in cell0 from
_bury_in_cell0
What to expect
1. nova_cell0 create instance in cell0 with error state.
Thanks
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