nova/releasenotes/notes/skip-hypervisor-version-check-on-lm-a87f2dcb4f8bf0f2.yaml
Kashyap Chamarthy 00ed8a232b Add a workaround to skip hypervisor version check on LM
When turned on, this will disable the version-checking of hypervisors
during live-migration.  This can be useful for operators in certain
scenarios when upgrading.  E.g. if you want to relocate all instances
off a compute node due to an emergency hardware issue, and you only have
another old compute node ready at the time.

Note, though: libvirt will do its own internal compatibility checks, and
might still reject live migration if the destination is incompatible.

Closes-Bug: #1982853

Change-Id: Iec387dcbc49ddb91ebf5cfd188224eaf6021c0e1
Signed-off-by: Kashyap Chamarthy <kchamart@redhat.com>
2022-07-27 12:20:03 +02:00

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YAML

---
feature:
- |
Adds a workaround that allows one to disable hypervisor
version-check on live migration. This workaround option can be
useful in certain scenarios when upgrading. E.g. if you want to
relocate all instances off a compute node due to an emergency
hardware issue, and you only have another old compute node ready at
the time.
To enable this, use the config attribute
``[workarounds]skip_hypervisor_version_check_on_lm=True`` in
``nova.conf``. The option defaults to ``False``.