x/tobiko
Code Issues Proposed changes

Filter migration targets by hypervisor type

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Migration tests should only migrate servers to hypervisors of the
same type (e.g., QEMU to QEMU, not QEMU to Ironic). This prevents
test failures in mixed hypervisor environments.

Updated both scenario and functional migration tests to filter
candidate hypervisors by hypervisor_type before selecting a
migration target.

Story: 2011623
Task: 53248
Assisted-By: Claude Code/claude-4.5-sonnet
Change-Id: Ic661100db6d22a1528aeb2c69ef95f8f686e60aa
Signed-off-by: Harald Jensås <hjensas@redhat.com>
This commit is contained in:
Harald Jensås
2025-11-26 11:12:16 +01:00
parent 0c5781fbb9
commit 5b994abf36
3 changed files with 34 additions and 2 deletions
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14
releasenotes/notes/story-2011623-live-migrate-filter-hypervisor-type-9a707d3ff8dd5db4.yaml Normal file
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@@ -0,0 +1,14 @@
---
fixes:
- |
Migration tests now filter candidate hypervisors by hypervisor type before
selecting a migration target. This prevents test failures when attempting
to migrate servers between incompatible hypervisor types (e.g., from QEMU
compute nodes to Ironic baremetal nodes). Nova does not support migration
between different hypervisor types, and tests will now properly select
only compatible hypervisors of the same type (QEMU to QEMU, Ironic to
Ironic, etc.) when performing live or cold migrations with an explicit
target host.
For more information, see
`Story 2011623 <https://storyboard.openstack.org/#!/story/2011623>`_.

12
tobiko/tests/functional/openstack/test_nova.py
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@@ -201,7 +201,17 @@ class MigrateServerTest(testtools.TestCase):
"""
server = self.setup_server()
initial_hypervisor = nova.get_server_hypervisor(server)
for hypervisor in nova.list_hypervisors(status='enabled', state='up'):
# Get the hypervisor object to determine its type
initial_hypervisor_obj = nova.find_hypervisor(
hypervisor_hostname=initial_hypervisor)
initial_hypervisor_type = initial_hypervisor_obj.hypervisor_type
# Filter by same hypervisor type
for hypervisor in nova.list_hypervisors(
status='enabled',
state='up',
hypervisor_type=initial_hypervisor_type):
if initial_hypervisor != hypervisor.hypervisor_hostname:
target_hypervisor = hypervisor.hypervisor_hostname
break

10
tobiko/tests/scenario/nova/test_server.py
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@@ -103,8 +103,16 @@ class BaseServerTest(testtools.TestCase):
server = self.ensure_server(status='ACTIVE')
initial_hypervisor = nova.get_server_hypervisor(server)
# Get the hypervisor object to determine its type
initial_hypervisor_obj = nova.find_hypervisor(
hypervisor_hostname=initial_hypervisor)
initial_hypervisor_type = initial_hypervisor_obj.hypervisor_type
# Filter by same hypervisor type and exclude the current hypervisor
hypervisors = nova.list_hypervisors(
status='enabled', state='up').select(
status='enabled',
state='up',
hypervisor_type=initial_hypervisor_type).select(
lambda h: h.hypervisor_hostname != initial_hypervisor)
if not hypervisors:
tobiko.skip_test("Cannot find a valid hypervisor host to migrate "