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[Launchpad Bug Tracker <2075150@xxxxxxxxxxxxxxxxxx>]

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We have and openstack ansible antelope setup. I am trying to debug nova-
api service. I have inserted "import pdb; pdb.set_trace()" at line 412
in the file  "/openstack/venvs/nova-27.3.0/lib/python3.8/site-
packages/nova/conductor/rpcapi.py" , then started the service manually
from the prompt as shown below:

---
root#: /openstack/venvs/uwsgi-27.3.0-python3/bin/uwsgi  --autoload --ini /etc/uwsgi/nova-api-os-compute.ini

After the launching the above command, I am trying to launch a vm using
the nova command.

It is dropping into the pdb shell but going to the next line after the
prompt and waiting. when I input any  pdb command, it is not responding
as shown above.

---
Nova API policies are introducing new default roles with scope_type
capabilities. Old policies are deprecated and silently going to be ignored
in nova 23.0.0 release.
. Either ensure your deployment is ready for the new default or copy/paste the deprecated policy into your policy file and maintain it manually.
  warnings.warn(deprecated_msg)
> /openstack/venvs/nova-27.3.0/lib/python3.8/site-packages/nova/conductor/rpcapi.py(413)schedule_and_build_instances()
-> cctxt = self.client.prepare(version=version)
(Pdb)

----

I have attached a clip for reference. Please let me know why is pdb
behaving like this

** Affects: nova
     Importance: Undecided
         Status: New

-- 
unable to use pdb for nova
https://bugs.launchpad.net/bugs/2075150
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