def test_replica_availability(self):
"""
@jira_ticket CASSANDRA-8640
Regression test for a bug (CASSANDRA-8640) that required all nodes to
be available in order to run LWT queries, even if the query could
complete correctly with quorum nodes available.
"""
session = self.prepare(nodes=3, rf=3)
session.execute("CREATE TABLE test (k int PRIMARY KEY, v int)")
session.execute("INSERT INTO test (k, v) VALUES (0, 0) IF NOT EXISTS")
node1 = self.cluster.nodelist()[1]
node2 = self.cluster.nodelist()[2]
node2.stop()
session.execute("INSERT INTO test (k, v) VALUES (1, 1) IF NOT EXISTS")
node1.stop()
assert_unavailable(
session.execute,
"INSERT INTO test (k, v) VALUES (2, 2) IF NOT EXISTS")
node1.start(wait_for_binary_proto=True)
session.execute("INSERT INTO test (k, v) VALUES (3, 3) IF NOT EXISTS")
node2.start(wait_for_binary_proto=True)
session.execute("INSERT INTO test (k, v) VALUES (4, 4) IF NOT EXISTS")
def _test_insert_query_from_node(self,
session,
dc_idx,
rf_factors,
num_nodes_alive,
write_cl,
read_cl,
serial_cl=None,
check_ret=True):
"""
Test availability for read and write via the session passed in as a parameter.
"""
self.log("Connected to %s for %s/%s/%s" %
(session.cluster.contact_points,
consistency_value_to_name(write_cl),
consistency_value_to_name(read_cl),
consistency_value_to_name(serial_cl)))
start = 0
end = 100
age = 30
if self._should_succeed(write_cl, rf_factors, num_nodes_alive, dc_idx):
for n in xrange(start, end):
self.insert_user(session, n, age, write_cl, serial_cl)
else:
assert_unavailable(self.insert_user, session, end, age, write_cl,
serial_cl)
if self._should_succeed(read_cl, rf_factors, num_nodes_alive, dc_idx):
for n in xrange(start, end):
self.query_user(session, n, age, read_cl, check_ret)
else:
assert_unavailable(self.query_user, session, end, age, read_cl,
check_ret)
def test_assertions(self):
# assert_exception_test
mock_session = Mock(
**
{'execute.side_effect': AlreadyExists("Dummy exception message.")})
assert_exception(mock_session, "DUMMY QUERY", expected=AlreadyExists)
# assert_unavailable_test
mock_session = Mock(**{
'execute.side_effect':
Unavailable("Dummy Unavailabile message.")
})
assert_unavailable(mock_session.execute)
# assert_invalid_test
mock_session = Mock(**{
'execute.side_effect':
InvalidRequest("Dummy InvalidRequest message.")
})
assert_invalid(mock_session, "DUMMY QUERY")
# assert_unauthorized_test
mock_session = Mock(**{
'execute.side_effect':
Unauthorized("Dummy Unauthorized message.")
})
assert_unauthorized(mock_session, "DUMMY QUERY", None)
# assert_one_test
mock_session = Mock()
mock_session.execute = Mock(return_value=[[1, 1]])
assert_one(mock_session, "SELECT * FROM test", [1, 1])
# assert_none_test
mock_session = Mock()
mock_session.execute = Mock(return_value=[])
assert_none(mock_session, "SELECT * FROM test")
# assert_all_test
mock_session = Mock()
mock_session.execute = Mock(return_value=[[i, i]
for i in range(0, 10)])
assert_all(mock_session,
"SELECT k, v FROM test", [[i, i] for i in range(0, 10)],
ignore_order=True)
# assert_almost_equal_test
assert_almost_equal(1, 1.1, 1.2, 1.9, error=1.0)
# assert_row_count_test
mock_session = Mock()
mock_session.execute = Mock(return_value=[[1]])
assert_row_count(mock_session, 'test', 1)
# assert_length_equal_test
check = [1, 2, 3, 4]
assert_length_equal(check, 4)
def logged_batch_throws_uae_test(self):
""" Test that logged batch throws UAE if there aren't enough live nodes """
session = self.prepare(nodes=3)
[node.stop(wait_other_notice=True) for node in self.cluster.nodelist()[1:]]
session.consistency_level = ConsistencyLevel.ONE
assert_unavailable(session.execute, """
BEGIN BATCH
INSERT INTO users (id, firstname, lastname) VALUES (0, 'Jack', 'Sparrow')
INSERT INTO users (id, firstname, lastname) VALUES (1, 'Will', 'Turner')
APPLY BATCH
""")
def logged_batch_throws_uae_test(self):
""" Test that logged batch throws UAE if there aren't enough live nodes """
session = self.prepare(nodes=3)
[node.stop(wait_other_notice=True) for node in self.cluster.nodelist()[1:]]
session.consistency_level = 'ONE'
assert_unavailable(session.execute, """
BEGIN BATCH
INSERT INTO users (id, firstname, lastname) VALUES (0, 'Jack', 'Sparrow')
INSERT INTO users (id, firstname, lastname) VALUES (1, 'Will', 'Turner')
APPLY BATCH
""")
def ttl_is_respected_on_repair_test(self):
""" Test that ttl is respected on repair """
self.prepare()
self.session1.execute("""
ALTER KEYSPACE ks WITH REPLICATION =
{'class' : 'SimpleStrategy', 'replication_factor' : 1};
""")
self.session1.execute("""
INSERT INTO ttl_table (key, col1) VALUES (1, 1) USING TTL 5;
""")
self.session1.execute("""
INSERT INTO ttl_table (key, col1) VALUES (2, 2) USING TTL 1000;
""")
assert_all(
self.session1,
"SELECT * FROM ttl_table;",
[[1, 1, None, None], [2, 2, None, None]]
)
time.sleep(7)
self.node1.stop()
session2 = self.patient_exclusive_cql_connection(self.node2)
session2.execute("USE ks;")
assert_unavailable(session2.execute, "SELECT * FROM ttl_table;")
self.node1.start(wait_for_binary_proto=True)
self.session1 = self.patient_exclusive_cql_connection(self.node1)
self.session1.execute("USE ks;")
self.session1.execute("""
ALTER KEYSPACE ks WITH REPLICATION =
{'class' : 'SimpleStrategy', 'replication_factor' : 2};
""")
self.node1.repair(['ks'])
ttl_start = time.time()
ttl_session1 = self.session1.execute('SELECT ttl(col1) FROM ttl_table;')
self.node1.stop()
assert_row_count(session2, 'ttl_table', 1)
assert_all(
session2,
"SELECT * FROM ttl_table;",
[[2, 2, None, None]]
)
# Check that the TTL on both server are the same
ttl_session2 = session2.execute('SELECT ttl(col1) FROM ttl_table;')
ttl_session1 = ttl_session1[0][0] - (time.time() - ttl_start)
assert_almost_equal(ttl_session1, ttl_session2[0][0], error=0.005)
def test_ttl_is_respected_on_repair(self):
""" Test that ttl is respected on repair """
self.prepare()
self.session1.execute("""
ALTER KEYSPACE ks WITH REPLICATION =
{'class' : 'SimpleStrategy', 'replication_factor' : 1};
""")
self.session1.execute("""
INSERT INTO ttl_table (key, col1) VALUES (1, 1) USING TTL 5;
""")
self.session1.execute("""
INSERT INTO ttl_table (key, col1) VALUES (2, 2) USING TTL 1000;
""")
assert_all(
self.session1,
"SELECT * FROM ttl_table;",
[[1, 1, None, None], [2, 2, None, None]]
)
time.sleep(7)
self.node1.stop()
session2 = self.patient_exclusive_cql_connection(self.node2)
session2.execute("USE ks;")
assert_unavailable(session2.execute, "SELECT * FROM ttl_table;")
self.node1.start(wait_for_binary_proto=True)
self.session1 = self.patient_exclusive_cql_connection(self.node1)
self.session1.execute("USE ks;")
self.session1.execute("""
ALTER KEYSPACE ks WITH REPLICATION =
{'class' : 'SimpleStrategy', 'replication_factor' : 2};
""")
self.node1.repair(['ks'])
ttl_start = time.time()
ttl_session1 = self.session1.execute('SELECT ttl(col1) FROM ttl_table;')
self.node1.stop()
assert_row_count(session2, 'ttl_table', 1)
assert_all(
session2,
"SELECT * FROM ttl_table;",
[[2, 2, None, None]]
)
# Check that the TTL on both server are the same
ttl_session2 = session2.execute('SELECT ttl(col1) FROM ttl_table;')
ttl_session1 = ttl_session1[0][0] - (time.time() - ttl_start)
assert_almost_equal(ttl_session1, ttl_session2[0][0], error=0.005)
def assertions_test(self):
# assert_exception_test
mock_session = Mock(**{'execute.side_effect': AlreadyExists("Dummy exception message.")})
assert_exception(mock_session, "DUMMY QUERY", expected=AlreadyExists)
# assert_unavailable_test
mock_session = Mock(**{'execute.side_effect': Unavailable("Dummy Unavailabile message.")})
assert_unavailable(mock_session.execute)
# assert_invalid_test
mock_session = Mock(**{'execute.side_effect': InvalidRequest("Dummy InvalidRequest message.")})
assert_invalid(mock_session, "DUMMY QUERY")
# assert_unauthorized_test
mock_session = Mock(**{'execute.side_effect': Unauthorized("Dummy Unauthorized message.")})
assert_unauthorized(mock_session, "DUMMY QUERY", None)
# assert_one_test
mock_session = Mock()
mock_session.execute = Mock(return_value=[[1, 1]])
assert_one(mock_session, "SELECT * FROM test", [1, 1])
# assert_none_test
mock_session = Mock()
mock_session.execute = Mock(return_value=[])
assert_none(mock_session, "SELECT * FROM test")
# assert_all_test
mock_session = Mock()
mock_session.execute = Mock(return_value=[[i, i] for i in range(0, 10)])
assert_all(mock_session, "SELECT k, v FROM test", [[i, i] for i in range(0, 10)], ignore_order=True)
# assert_almost_equal_test
assert_almost_equal(1, 1.1, 1.2, 1.9, error=1.0)
# assert_row_count_test
mock_session = Mock()
mock_session.execute = Mock(return_value=[[1]])
assert_row_count(mock_session, 'test', 1)
# assert_length_equal_test
check = [1, 2, 3, 4]
assert_length_equal(check, 4)
def _test_insert_query_from_node(self, session, dc_idx, rf_factors, num_nodes_alive, write_cl, read_cl, serial_cl=None, check_ret=True):
"""
Test availability for read and write via the session passed in as a parameter.
"""
self.log("Connected to %s for %s/%s/%s" %
(session.cluster.contact_points, consistency_value_to_name(write_cl), consistency_value_to_name(read_cl), consistency_value_to_name(serial_cl)))
start = 0
end = 100
age = 30
if self._should_succeed(write_cl, rf_factors, num_nodes_alive, dc_idx):
for n in xrange(start, end):
self.insert_user(session, n, age, write_cl, serial_cl)
else:
assert_unavailable(self.insert_user, session, end, age, write_cl, serial_cl)
if self._should_succeed(read_cl, rf_factors, num_nodes_alive, dc_idx):
for n in xrange(start, end):
self.query_user(session, n, age, read_cl, check_ret)
else:
assert_unavailable(self.query_user, session, end, age, read_cl, check_ret)
def replica_availability_test(self):
"""
@jira_ticket CASSANDRA-8640
Regression test for a bug (CASSANDRA-8640) that required all nodes to
be available in order to run LWT queries, even if the query could
complete correctly with quorum nodes available.
"""
session = self.prepare(nodes=3, rf=3)
session.execute("CREATE TABLE test (k int PRIMARY KEY, v int)")
session.execute("INSERT INTO test (k, v) VALUES (0, 0) IF NOT EXISTS")
self.cluster.nodelist()[2].stop()
session.execute("INSERT INTO test (k, v) VALUES (1, 1) IF NOT EXISTS")
self.cluster.nodelist()[1].stop()
assert_unavailable(session.execute, "INSERT INTO test (k, v) VALUES (2, 2) IF NOT EXISTS")
self.cluster.nodelist()[1].start(wait_for_binary_proto=True, wait_other_notice=True)
session.execute("INSERT INTO test (k, v) VALUES (3, 3) IF NOT EXISTS")
self.cluster.nodelist()[2].start(wait_for_binary_proto=True)
session.execute("INSERT INTO test (k, v) VALUES (4, 4) IF NOT EXISTS")
