def check_can_live_migrate_destination(self, ctxt, instance, destination,
block_migration, disk_over_commit):
version = '4.11'
if not self.client.can_send_version(version):
# NOTE(eliqiao): This is a new feature that is only available
# once all compute nodes support at least version 4.11.
# This means the new REST API that supports this needs to handle
# this exception correctly. This can all be removed when we bump
# the major version of this RPC API.
if block_migration is None or disk_over_commit is None:
raise exception.LiveMigrationWithOldNovaNotSupported()
else:
version = '4.0'
cctxt = self.client.prepare(server=destination, version=version)
result = cctxt.call(ctxt, 'check_can_live_migrate_destination',
instance=instance,
block_migration=block_migration,
disk_over_commit=disk_over_commit)
if isinstance(result, migrate_data_obj.LiveMigrateData):
return result
elif result:
return migrate_data_obj.LiveMigrateData.detect_implementation(
result)
else:
return result
class TestInstanceNotificationSampleWithMultipleCompute(
notification_sample_base.NotificationSampleTestBase):
def setUp(self):
self.flags(use_neutron=True)
super(TestInstanceNotificationSampleWithMultipleCompute, self).setUp()
self.neutron = fixtures.NeutronFixture(self)
self.useFixture(self.neutron)
self.cinder = fixtures.CinderFixture(self)
self.useFixture(self.cinder)
def test_live_migration_actions(self):
server = self._boot_a_server(
extra_params={'networks': [{
'port': self.neutron.port_1['id']
}]})
self._wait_for_notification('instance.create.end')
# server will boot on host1
self.useFixture(fixtures.ConfPatcher(host='host2'))
self.compute2 = self.start_service('compute', host='host2')
actions = [
self._test_live_migration_rollback,
]
for action in actions:
fake_notifier.reset()
action(server)
# Ensure that instance is in active state after an action
self._wait_for_state_change(self.admin_api, server, 'ACTIVE')
@mock.patch('nova.compute.rpcapi.ComputeAPI.pre_live_migration',
side_effect=exception.LiveMigrationWithOldNovaNotSupported())
def _test_live_migration_rollback(self, server, mock_migration):
post = {
'os-migrateLive': {
'host': 'host2',
'block_migration': True,
'force': True,
}
}
self.admin_api.post_server_action(server['id'], post)
self._wait_for_notification('instance.live_migration_rollback.start')
self._wait_for_notification('instance.live_migration_rollback.end')
self.assertEqual(2, len(fake_notifier.VERSIONED_NOTIFICATIONS))
self._verify_notification(
'instance-live_migration_rollback-start',
replacements={
'reservation_id': server['reservation_id'],
'uuid': server['id']
},
actual=fake_notifier.VERSIONED_NOTIFICATIONS[0])
self._verify_notification(
'instance-live_migration_rollback-end',
replacements={
'reservation_id': server['reservation_id'],
'uuid': server['id']
},
actual=fake_notifier.VERSIONED_NOTIFICATIONS[1])
def test_migrate_live_migration_with_old_nova_not_supported(self):
self._test_migrate_live_failed_with_exception(
exception.LiveMigrationWithOldNovaNotSupported())