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Message #96298
[Bug 2120549] Re: [IRONIC][Caracal] - Get Host Uptime is Broken
Greetings,
The call your reporting form nova, not Ironic, is in the nova virt
driver to speak with Ironic.
Specifically, the driver looks to collect the "compute node uptime", a
concept which doesn't really exist in the Ironic world because it has no
real parallel meaning or mapping. Because Ironic's nodes are presented
as whole "compute nodes" which can be consumed. The running nova-compute
service, instead of generating one record, translates the nodes across
and proxies calls to Ironic.
As a result, there is not an identifiable uptime which would make sense
for the running nova-compute service in that nova deployment which would
map to the physical nodes being "serviced" by that compute endpoint.
I think there may already be a nova bug on this issue, and at some point
I think we discussed that this error should just be suppressed in their
logging. In any event, I'm going to change the state on this bug to
accurately represent Ironic. If you wish to approach Nova please let us
know. Thanks!
** Changed in: ironic
Status: In Progress => Won't Fix
--
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https://bugs.launchpad.net/bugs/2120549
Title:
[IRONIC][Caracal] - Get Host Uptime is Broken
Status in Ironic:
Won't Fix
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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