def test_by_host(self, mock_rpcclient, mock_create, mock_get):
default_client = mock.Mock()
cell_client = mock.Mock()
mock_rpcclient.return_value = cell_client
ctxt = mock.Mock()
cm = objects.CellMapping(uuid=uuids.cell_mapping,
transport_url='fake:///')
mock_get.return_value = objects.HostMapping(cell_mapping=cm)
host = 'fake-host'
router = rpc.ClientRouter(default_client)
client = router.by_host(ctxt, host)
mock_get.assert_called_once_with(ctxt, host)
# verify a client was created by ClientRouter
mock_rpcclient.assert_called_once_with(
mock_create.return_value,
default_client.target,
version_cap=default_client.version_cap,
serializer=default_client.serializer)
# verify cell client was returned
self.assertEqual(cell_client, client)
# reset and check that cached client is returned the second time
mock_rpcclient.reset_mock()
mock_create.reset_mock()
mock_get.reset_mock()
client = router.by_host(ctxt, host)
mock_get.assert_called_once_with(ctxt, host)
mock_rpcclient.assert_not_called()
mock_create.assert_not_called()
self.assertEqual(cell_client, client)
def test_remove_stale_clients(self, mock_rpcclient, mock_create, mock_get):
t0 = datetime.datetime(2016, 8, 9, 0, 0, 0)
time_fixture = self.useFixture(utils_fixture.TimeFixture(t0))
default_client = mock.Mock()
ctxt = mock.Mock()
cm1 = objects.CellMapping(uuid=uuids.cell_mapping1,
transport_url='fake:///')
cm2 = objects.CellMapping(uuid=uuids.cell_mapping2,
transport_url='fake:///')
cm3 = objects.CellMapping(uuid=uuids.cell_mapping3,
transport_url='fake:///')
mock_get.side_effect = [objects.InstanceMapping(cell_mapping=cm1),
objects.InstanceMapping(cell_mapping=cm2),
objects.InstanceMapping(cell_mapping=cm3),
objects.InstanceMapping(cell_mapping=cm3)]
instance1 = objects.Instance(uuid=uuids.instance1)
instance2 = objects.Instance(uuid=uuids.instance2)
instance3 = objects.Instance(uuid=uuids.instance3)
router = rpc.ClientRouter(default_client)
cell1_client = router.by_instance(ctxt, instance1)
cell2_client = router.by_instance(ctxt, instance2)
# default client, cell1 client, cell2 client
self.assertEqual(3, len(router.clients))
expected = {'default': default_client,
uuids.cell_mapping1: cell1_client,
uuids.cell_mapping2: cell2_client}
for client_id, client in expected.items():
self.assertEqual(client, router.clients[client_id].client)
# expire cell1 client and cell2 client
time_fixture.advance_time_seconds(80)
# add cell3 client
cell3_client = router.by_instance(ctxt, instance3)
router._remove_stale_clients(ctxt)
# default client, cell3 client
expected = {'default': default_client,
uuids.cell_mapping3: cell3_client}
self.assertEqual(2, len(router.clients))
for client_id, client in expected.items():
self.assertEqual(client, router.clients[client_id].client)
# expire cell3 client
time_fixture.advance_time_seconds(80)
# access cell3 client to refresh it
cell3_client = router.by_instance(ctxt, instance3)
router._remove_stale_clients(ctxt)
# default client and cell3 client should be there
self.assertEqual(2, len(router.clients))
for client_id, client in expected.items():
self.assertEqual(client, router.clients[client_id].client)
def router(self):
with lockutils.lock('compute-rpcapi-router'):
target = messaging.Target(topic='compute', version='5.0')
version_cap = self.version
serializer = objects_base.NovaObjectSerializer()
rpc.get_client(target, version_cap, serializer)
default_client = self.get_client(target, version_cap, serializer)
return rpc.ClientRouter(default_client)
def test_by_instance_untargeted(self, mock_rpcclient):
default_client = mock.Mock()
cell_client = mock.Mock()
mock_rpcclient.return_value = cell_client
ctxt = mock.Mock()
ctxt.mq_connection = None
router = rpc.ClientRouter(default_client)
client = router.client(ctxt)
self.assertEqual(router.default_client, client)
self.assertFalse(mock_rpcclient.called)
def test_by_host_not_found(self, mock_rpcclient, mock_create, mock_get):
default_client = mock.Mock()
cell_client = mock.Mock()
mock_rpcclient.return_value = cell_client
ctxt = mock.Mock()
host = 'fake-host'
router = rpc.ClientRouter(default_client)
client = router.by_host(ctxt, host)
mock_get.assert_called_once_with(ctxt, host)
mock_rpcclient.assert_not_called()
mock_create.assert_not_called()
# verify default client was returned
self.assertEqual(default_client, client)
def test_by_instance_not_found(self, mock_rpcclient, mock_create,
mock_get):
default_client = mock.Mock()
cell_client = mock.Mock()
mock_rpcclient.return_value = cell_client
ctxt = mock.Mock()
instance = objects.Instance(uuid=uuids.instance)
router = rpc.ClientRouter(default_client)
client = router.by_instance(ctxt, instance)
mock_get.assert_called_once_with(ctxt, instance.uuid)
mock_rpcclient.assert_not_called()
mock_create.assert_not_called()
# verify default client was returned
self.assertEqual(default_client, client)
def __init__(self):
super(ComputeAPI, self).__init__()
target = messaging.Target(topic=RPC_TOPIC, version='5.0')
upgrade_level = CONF.upgrade_levels.compute
if upgrade_level == 'auto':
version_cap = self._determine_version_cap(target)
else:
version_cap = self.VERSION_ALIASES.get(upgrade_level,
upgrade_level)
serializer = objects_base.NovaObjectSerializer()
# NOTE(danms): We need to poke this path to register CONF options
# that we use in self.get_client()
rpc.get_client(target, version_cap, serializer)
default_client = self.get_client(target, version_cap, serializer)
self.router = rpc.ClientRouter(default_client)
def test_by_host(self, mock_rpcclient):
default_client = mock.Mock()
cell_client = mock.Mock()
mock_rpcclient.return_value = cell_client
ctxt = mock.Mock()
ctxt.mq_connection = mock.sentinel.transport
host = 'fake-host'
router = rpc.ClientRouter(default_client)
client = router.by_host(ctxt, host)
# verify a client was created by ClientRouter
mock_rpcclient.assert_called_once_with(
mock.sentinel.transport, default_client.target,
version_cap=default_client.version_cap,
serializer=default_client.serializer)
# verify cell client was returned
self.assertEqual(cell_client, client)
def test_by_instance(self, mock_rpcclient):
default_client = mock.Mock()
cell_client = mock.Mock()
mock_rpcclient.return_value = cell_client
ctxt = mock.Mock()
ctxt.mq_connection = mock.sentinel.transport
instance = objects.Instance(uuid=uuids.instance)
router = rpc.ClientRouter(default_client)
client = router.by_instance(ctxt, instance)
# verify a client was created by ClientRouter
mock_rpcclient.assert_called_once_with(
mock.sentinel.transport, default_client.target,
version_cap=default_client.version_cap,
serializer=default_client.serializer)
# verify cell client was returned
self.assertEqual(cell_client, client)
def test_by_instance(self, mock_rpcclient):
default_client = mock.Mock()
cell_client = mock.Mock()
mock_rpcclient.return_value = cell_client
ctxt = mock.Mock()
ctxt.mq_connection = mock.sentinel.transport
router = rpc.ClientRouter(default_client)
client = router.client(ctxt)
# verify a client was created by ClientRouter
mock_rpcclient.assert_called_once_with(
mock.sentinel.transport, default_client.target,
version_cap=default_client.version_cap,
call_monitor_timeout=default_client.call_monitor_timeout,
serializer=default_client.serializer)
# verify cell client was returned
self.assertEqual(cell_client, client)