[Bug 2103413] Re: Python3.13: Garbage collection happens too early on greenthread switches

Thomas Goirand 2103413 at bugs.launchpad.net
Sat Jun 7 14:39:31 UTC 2025 

Uggla,

Just to make things clear about the situation...

The current status is not "possibly Debian 13 already use Python 3.13".
What happens is that Mathias Klose (aka: doko, a Canonical employee)
always updates the Python interpreter in Debian first at the end of each
year, and early the year after, it goes into Unbutu.

Currently, Debian 13, aka Trixie, is in freeze, and includes Python
3.13. There wont be any other interpreter.

I was able to validate all of OpenStack as a backport to Debian 12
(Bookworm), but *not* in Trixie, as Nova is currently broken, as per
this bug. This currently means that Debian 13 will not have a working
Nova (ie: not even able to spawn a VM) unless we find a fix.

While I would of course prefer to find a fix before the release of
Debian 13, if we have a workaround, I'll be able to upload it. But I
wont be able to upload all of Flamingo (or the 2026.1 release) in Debian
13, it will be too late.

So, this is a quite sad situation we're in... :/

-- 
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https://bugs.launchpad.net/bugs/2103413

Title:
  Python3.13: Garbage collection happens too early on greenthread
  switches

Status in OpenStack Compute (nova):
  Deferred
Status in Release Notes for Ubuntu:
  In Progress
Status in nova package in Ubuntu:
  New

Bug description:
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f] Traceback (most recent call last):
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]   File "/usr/lib/python3/dist-packages/nova/compute/manager.py", line 2648, in _build_and_run_instance
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]     self.driver.spawn(context, instance, image_meta,
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]     ~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]                       injected_files, admin_password,
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]                       allocs, network_info=network_info,
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]                       block_device_info=block_device_info,
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]                       accel_info=accel_info)
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]                       ^^^^^^^^^^^^^^^^^^^^^^
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]   File "/usr/lib/python3/dist-packages/nova/virt/libvirt/driver.py", line 4832, in spawn
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]     xml = self._get_guest_xml(context, instance, network_info,
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]                               disk_info, image_meta,
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]                               block_device_info=block_device_info,
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]                               mdevs=mdevs, accel_info=accel_info)
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]   File "/usr/lib/python3/dist-packages/nova/virt/libvirt/driver.py", line 7997, in _get_guest_xml
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]     network_info_str = str(network_info)
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]   File "/usr/lib/python3/dist-packages/nova/network/model.py", line 622, in __str__
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]     return self._sync_wrapper(fn, *args, **kwargs)
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]            ~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]   File "/usr/lib/python3/dist-packages/nova/network/model.py", line 605, in _sync_wrapper
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]     self.wait()
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]     ~~~~~~~~~^^
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]   File "/usr/lib/python3/dist-packages/nova/network/model.py", line 637, in wait
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]     self[:] = self._gt.wait()
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]               ~~~~~~~~~~~~~^^
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]   File "/usr/lib/python3/dist-packages/eventlet/greenthread.py", line 232, in wait
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]     return self._exit_event.wait()
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]            ~~~~~~~~~~~~~~~~~~~~~^^
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]   File "/usr/lib/python3/dist-packages/eventlet/event.py", line 131, in wait
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]     current.throw(*self._exc)
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]     ~~~~~~~~~~~~~^^^^^^^^^^^^
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]   File "/usr/lib/python3/dist-packages/eventlet/greenthread.py", line 272, in main
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]     result = function(*args, **kwargs)
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]   File "/usr/lib/python3/dist-packages/nova/utils.py", line 663, in context_wrapper
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]     return func(*args, **kwargs)
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]   File "/usr/lib/python3/dist-packages/nova/compute/manager.py", line 2018, in _allocate_network_async
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]     raise e
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]   File "/usr/lib/python3/dist-packages/nova/compute/manager.py", line 1996, in _allocate_network_async
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]     nwinfo = self.network_api.allocate_for_instance(
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]             context, instance,
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]     ...<3 lines>...
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]             resource_provider_mapping=resource_provider_mapping,
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]             network_arqs=network_arqs)
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]   File "/usr/lib/python3/dist-packages/nova/network/neutron.py", line 1287, in allocate_for_instance
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]     nw_info = self.get_instance_nw_info(
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]         context, instance, networks=ordered_nets,
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]         port_ids=ordered_port_ids,
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]         admin_client=admin_client,
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]         preexisting_port_ids=preexisting_port_ids)
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]   File "/usr/lib/python3/dist-packages/nova/network/neutron.py", line 2047, in get_instance_nw_info
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]     result = self._get_instance_nw_info(context, instance, **kwargs)
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]   File "/usr/lib/python3/dist-packages/nova/network/neutron.py", line 2073, in _get_instance_nw_info
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]     nw_info = self._build_network_info_model(context, instance, networks,
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]                                              port_ids, admin_client,
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]                                              preexisting_port_ids,
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]                                              refresh_vif_id,
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]                                              force_refresh=force_refresh)
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]   File "/usr/lib/python3/dist-packages/nova/network/neutron.py", line 3496, in _build_network_info_model
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]     data = client.list_ports(**search_opts)
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]   File "/usr/lib/python3/dist-packages/nova/network/neutron.py", line 196, in wrapper
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]     ret = obj(*args, **kwargs)
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]   File "/usr/lib/python3/dist-packages/neutronclient/v2_0/client.py", line 815, in list_ports
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]     return self.list('ports', self.ports_path, retrieve_all,
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]            ~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]                      **_params)
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]                      ^^^^^^^^^^
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]   File "/usr/lib/python3/dist-packages/nova/network/neutron.py", line 196, in wrapper
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]     ret = obj(*args, **kwargs)
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]   File "/usr/lib/python3/dist-packages/neutronclient/v2_0/client.py", line 372, in list
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]     for r in self._pagination(collection, path, **params):
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]              ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]   File "/usr/lib/python3/dist-packages/neutronclient/v2_0/client.py", line 387, in _pagination
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]     res = self.get(path, params=params)
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]   File "/usr/lib/python3/dist-packages/nova/network/neutron.py", line 196, in wrapper
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]     ret = obj(*args, **kwargs)
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]   File "/usr/lib/python3/dist-packages/neutronclient/v2_0/client.py", line 356, in get
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]     return self.retry_request("GET", action, body=body,
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]            ~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]                               headers=headers, params=params)
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]   File "/usr/lib/python3/dist-packages/nova/network/neutron.py", line 196, in wrapper
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]     ret = obj(*args, **kwargs)
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]   File "/usr/lib/python3/dist-packages/neutronclient/v2_0/client.py", line 333, in retry_request
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]     return self.do_request(method, action, body=body,
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]            ~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]                            headers=headers, params=params)
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]   File "/usr/lib/python3/dist-packages/nova/network/neutron.py", line 196, in wrapper
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]     ret = obj(*args, **kwargs)
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]   File "/usr/lib/python3/dist-packages/neutronclient/v2_0/client.py", line 284, in do_request
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]     resp, replybody = self.httpclient.do_request(action, method, body=body,
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]                       ~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]                                                  headers=headers)
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]                                                  ^^^^^^^^^^^^^^^^
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]   File "/usr/lib/python3/dist-packages/neutronclient/client.py", line 341, in do_request
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]     self._check_uri_length(url)
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]     ~~~~~~~~~~~~~~~~~~~~~~^^^^^
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]   File "/usr/lib/python3/dist-packages/neutronclient/client.py", line 334, in _check_uri_length
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]     uri_len = len(self.endpoint_url) + len(url)
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]                   ^^^^^^^^^^^^^^^^^
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]   File "/usr/lib/python3/dist-packages/neutronclient/client.py", line 348, in endpoint_url
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]     return self.get_endpoint()
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]            ~~~~~~~~~~~~~~~~~^^
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]   File "/usr/lib/python3/dist-packages/keystoneauth1/adapter.py", line 330, in get_endpoint
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]     if self.endpoint_override:
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f]        ^^^^^^^^^^^^^^^^^^^^^^
  2025-03-17 11:08:00.390 38463 ERROR nova.compute.manager [instance: 5c6786d9-15c5-414f-990f-eff2bf9f4d1f] AttributeError: 'SessionClient' object has no attribute 'endpoint_override'

  
  This using Plucky Proposed - 25.04
  nova-compute: 3:30.0.0+git2025030311.e6b8b051a9-0ubuntu1

  This nova compute version is a snapshot of current master branch from
  the Nova project, RC1 will soon be available:
  https://review.opendev.org/c/openstack/releases/+/943941

  This happens during testing with Tempest, in tests such as:
  tempest.scenario.test_network_basic_ops.TestNetworkBasicOps.test_network_basic_ops

  Nova should successfully create a VM

  Nova failed to communicate with neutron because of an attribute error

  I've tested the same version of Nova using the Epoxy Cloud archive
  from proposed, and it worked correctly.

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