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[Nilesh <2120549@xxxxxxxxxxxxxxxxxx>]

** Also affects: nova
   Importance: Undecided
       Status: New

** Changed in: nova
       Status: New => In Progress

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https://bugs.launchpad.net/bugs/2120549

Title:
   [IRONIC][Caracal] - Get Host Uptime is Broken

Status in Ironic:
  In Progress
Status in OpenStack Compute (nova):
  In Progress

Bug description:
  ++++++++++++
  ENV Details:
  ++++++++++++

  ```
  root@jj-caracal-online:~# cat /etc/openstack-release
  # Ansible managed

  DISTRIB_ID="OSA"
  DISTRIB_RELEASE="29.2.3.dev1"
  DISTRIB_CODENAME="Caracal"
  DISTRIB_DESCRIPTION="OpenStack-Ansible"
  root@jj-caracal-online:~#
  ```

  ++++++
  Issue:
  ++++++
  > [!NOTE]
  > I am executing the command as admin.

  ```
  Aug 13 10:05:51 jj-caracal-online.ct.lan nova-compute[337506]: 2025-08-13 10:05:51.041 337506 ERROR oslo_messaging.rpc.server [None req-4ff10130-49d7-427e-b5c5-402d39687967 7310ba37996640bf94c0712aafe954fa 4d620e29ef8e4a90a3db8535f540fde3 - - default default] Exception during message handling: NotImplementedError
                                                                 2025-08-13 10:05:51.041 337506 ERROR oslo_messaging.rpc.server Traceback (most recent call last):
                                                                 2025-08-13 10:05:51.041 337506 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-29.2.3.dev1/lib/python3.10/site-packages/oslo_messaging/rpc/server.py", line 165, in _process_incoming
                                                                 2025-08-13 10:05:51.041 337506 ERROR oslo_messaging.rpc.server     res = self.dispatcher.dispatch(message)
                                                                 2025-08-13 10:05:51.041 337506 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-29.2.3.dev1/lib/python3.10/site-packages/oslo_messaging/rpc/dispatcher.py", line 309, in dispatch
                                                                 2025-08-13 10:05:51.041 337506 ERROR oslo_messaging.rpc.server     return self._do_dispatch(endpoint, method, ctxt, args)
                                                                 2025-08-13 10:05:51.041 337506 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-29.2.3.dev1/lib/python3.10/site-packages/oslo_messaging/rpc/dispatcher.py", line 229, in _do_dispatch
                                                                 2025-08-13 10:05:51.041 337506 ERROR oslo_messaging.rpc.server     result = func(ctxt, **new_args)
                                                                 2025-08-13 10:05:51.041 337506 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-29.2.3.dev1/lib/python3.10/site-packages/nova/exception_wrapper.py", line 65, in wrapped
                                                                 2025-08-13 10:05:51.041 337506 ERROR oslo_messaging.rpc.server     with excutils.save_and_reraise_exception():
                                                                 2025-08-13 10:05:51.041 337506 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-29.2.3.dev1/lib/python3.10/site-packages/oslo_utils/excutils.py", line 227, in __exit__
                                                                 2025-08-13 10:05:51.041 337506 ERROR oslo_messaging.rpc.server     self.force_reraise()
                                                                 2025-08-13 10:05:51.041 337506 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-29.2.3.dev1/lib/python3.10/site-packages/oslo_utils/excutils.py", line 200, in force_reraise
                                                                 2025-08-13 10:05:51.041 337506 ERROR oslo_messaging.rpc.server     raise self.value
                                                                 2025-08-13 10:05:51.041 337506 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-29.2.3.dev1/lib/python3.10/site-packages/nova/exception_wrapper.py", line 63, in wrapped
                                                                 2025-08-13 10:05:51.041 337506 ERROR oslo_messaging.rpc.server     return f(self, context, *args, **kw)
                                                                 2025-08-13 10:05:51.041 337506 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-29.2.3.dev1/lib/python3.10/site-packages/nova/compute/manager.py", line 6779, in get_host_uptime
                                                                 2025-08-13 10:05:51.041 337506 ERROR oslo_messaging.rpc.server     return self.driver.get_host_uptime()
                                                                 2025-08-13 10:05:51.041 337506 ERROR oslo_messaging.rpc.server   File "/openstack/venvs/nova-29.2.3.dev1/lib/python3.10/site-packages/nova/virt/driver.py", line 1504, in get_host_uptime
                                                                 2025-08-13 10:05:51.041 337506 ERROR oslo_messaging.rpc.server     raise NotImplementedError()
                                                                 2025-08-13 10:05:51.041 337506 ERROR oslo_messaging.rpc.server NotImplementedError
                                                                 2025-08-13 10:05:51.041 337506 ERROR oslo_messaging.rpc.server 
  ```

  +++++++++++
  Code Snipp:
  +++++++++++ 

  * The code is not implemented yet.

  ```
  /openstack/venvs/nova-29.2.3.dev1/lib/python3.10/site-packages/nova/virt/driver.py
  ```

  ```
      def get_host_uptime(self):
          """Returns the result of the time since start up of this hypervisor.

          :return: A text which contains the uptime of this host since the
                   last boot.
          :rtype: str
          """
          # TODO(Vek): Need to pass context in for access to auth_token
          raise NotImplementedError()
   ```

  Thanks, 
  cNilesh.

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