def test_prepare_on_all_hosts(self):
"""
Test to validate prepare_on_all_hosts flag is honored.
Use a special ForcedHostSwitchPolicy to ensure prepared queries are cycled over nodes that should not
have them prepared. Check the logs to insure they are being re-prepared on those nodes
@since 3.4.0
@jira_ticket PYTHON-556
@expected_result queries will have to re-prepared on hosts that aren't the control connection
"""
white_list = ForcedHostSwitchPolicy()
clus = Cluster(
load_balancing_policy=white_list,
protocol_version=PROTOCOL_VERSION, prepare_on_all_hosts=False, reprepare_on_up=False)
try:
session = clus.connect(wait_for_all_pools=True)
mock_handler = MockLoggingHandler()
logger = logging.getLogger(cluster.__name__)
logger.addHandler(mock_handler)
select_statement = session.prepare("SELECT * FROM system.local")
session.execute(select_statement)
session.execute(select_statement)
session.execute(select_statement)
self.assertEqual(2, mock_handler.get_message_count('debug', "Re-preparing"))
finally:
clus.shutdown()
def test_sync_warnings(self):
"""
Test to insure when inconsistent changes are made to a table, or type as part of a sync call that the proper logging messages are surfaced
@since 3.2
@jira_ticket PYTHON-260
@expected_result warnings are logged
@test_category object_mapper
"""
mock_handler = MockLoggingHandler()
logger = logging.getLogger(management.__name__)
logger.addHandler(mock_handler)
sync_table(BaseInconsistent)
sync_table(ChangedInconsistent)
self.assertTrue('differing from the model type' in mock_handler.messages.get('warning')[0])
if CASSANDRA_VERSION >= '2.1':
sync_type(DEFAULT_KEYSPACE, BaseInconsistentType)
mock_handler.reset()
sync_type(DEFAULT_KEYSPACE, ChangedInconsistentType)
self.assertTrue('differing from the model user type' in mock_handler.messages.get('warning')[0])
logger.removeHandler(mock_handler)
def test_duplicate(self):
"""
Test duplicate RPC addresses.
Modifies the system.peers table to make hosts have the same rpc address. Ensures such hosts are filtered out and a message is logged
@since 3.4
@jira_ticket PYTHON-366
@expected_result only one hosts' metadata will be populated
@test_category metadata
"""
mock_handler = MockLoggingHandler()
logger = logging.getLogger(cassandra.cluster.__name__)
logger.addHandler(mock_handler)
test_cluster = self.cluster = Cluster(
protocol_version=PROTOCOL_VERSION,
load_balancing_policy=self.load_balancing_policy)
test_cluster.connect()
warnings = mock_handler.messages.get("warning")
self.assertEqual(len(warnings), 1)
self.assertTrue('multiple' in warnings[0])
logger.removeHandler(mock_handler)
def setUpClass(cls):
cls.logger_handler = MockLoggingHandler()
logger = logging.getLogger(cluster.__name__)
logger.addHandler(cls.logger_handler)
