replace compute node

asked 2018-05-23 08:25:17 -0500

Hi,

I'm working with openStack since a few weeks. I had a few problems, but I could resolve them. Now I have a question about the computer nodes: How are they replaced?

Let's say the mainboard has a malfunction - How can I replace the old server with the new one? I tried "nova service-disable <id>" and "nova service-delete <id>". But when I add the new one, I got the errors from nova-conductor when an instance starts:

2018-05-23 14:54:46.771 2576 ERROR nova.conductor.manager [req-93962609-a01e-40d1-90c6-313b896bb14f 6f8a01b3787842c088a01c7143b38251 bdb6a5c73bfa4ea6a4c4ff69fbadff84 - default default] Failed to schedule instances: NoValidHost_Remote: Es wurde kein g\xfcltiger Host gefunden. Es sind nicht gen\xfcgend Hosts verf\xfcgbar.
Traceback (most recent call last):

enter code hereFile "/usr/lib/python2.7/site-packages/oslo_messaging/rpc/server.py", line 226, in inner
return func(*args, **kwargs)

File "/usr/lib/python2.7/site-packages/nova/scheduler/manager.py", line 153, in select_destinations
allocation_request_version, return_alternates)

File "/usr/lib/python2.7/site-packages/nova/scheduler/filter_scheduler.py", line 91, in select_destinations
allocation_request_version, return_alternates)

File "/usr/lib/python2.7/site-packages/nova/scheduler/filter_scheduler.py", line 243, in _schedule
claimed_instance_uuids)

File "/usr/lib/python2.7/site-packages/nova/scheduler/filter_scheduler.py", line 280, in _ensure_sufficient_hosts
raise exception.NoValidHost(reason=reason)

NoValidHost: Es wurde kein g\xfcltiger Host gefunden. Es sind nicht gen\xfcgend Hosts verf\xfcgbar.
2018-05-23 14:54:46.771 2576 ERROR nova.conductor.manager Traceback (most recent call last):
2018-05-23 14:54:46.771 2576 ERROR nova.conductor.manager   File "/usr/lib/python2.7/site-packages/nova/conductor/manager.py", line 1116, in schedule_and_build_instances
2018-05-23 14:54:46.771 2576 ERROR nova.conductor.manager     instance_uuids, return_alternates=True)
2018-05-23 14:54:46.771 2576 ERROR nova.conductor.manager   File "/usr/lib/python2.7/site-packages/nova/conductor/manager.py", line 716, in _schedule_instances
2018-05-23 14:54:46.771 2576 ERROR nova.conductor.manager     return_alternates=return_alternates)
2018-05-23 14:54:46.771 2576 ERROR nova.conductor.manager   File "/usr/lib/python2.7/site-packages/nova/scheduler/utils.py", line 726, in wrapped
2018-05-23 14:54:46.771 2576 ERROR nova.conductor.manager     return func(*args, **kwargs)
2018-05-23 14:54:46.771 2576 ERROR nova.conductor.manager   File "/usr/lib/python2.7/site-packages/nova/scheduler/client/__init__.py", line 53, in select_destinations
2018-05-23 14:54:46.771 2576 ERROR nova.conductor.manager     instance_uuids, return_objects, return_alternates)
2018-05-23 14:54:46.771 2576 ERROR nova.conductor.manager   File "/usr/lib/python2.7/site-packages  /nova/scheduler/client/__init__.py", line 37, in __run_method
2018-05-23 14:54:46.771 2576 ERROR nova.conductor.manager     return getattr(self.instance, __name)(*args, **kwargs)
2018-05-23 14:54:46.771 2576 ERROR nova.conductor.manager   File "/usr/lib/python2.7/site-packages/nova/scheduler/client/query.py", line 42, in select_destinations
2018-05-23 14:54:46.771 2576 ERROR nova.conductor.manager     instance_uuids, return_objects, return_alternates)
2018-05-23 14:54:46.771 2576 ERROR nova.conductor.manager   File "/usr/lib/python2.7/site-packages/nova/scheduler/rpcapi.py", line 158, in select_destinations
2018-05-23 14:54:46.771 2576 ERROR nova.conductor.manager     return cctxt ...
(more)
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