def short_read_delete_test(self):
""" Test short reads ultimately leaving no columns alive [#4000] """
cluster = self.cluster
# Disable hinted handoff and set batch commit log so this doesn't
# interfere with the test
cluster.set_configuration_options(values={'hinted_handoff_enabled': False})
cluster.set_batch_commitlog(enabled=True)
cluster.populate(2).start(wait_other_notice=True)
node1, node2 = cluster.nodelist()
session = self.patient_cql_connection(node1)
create_ks(session, 'ks', 3)
create_cf(session, 'cf', read_repair=0.0)
# insert 2 columns in one row
insert_columns(self, session, 0, 2)
# Delete the row while first node is dead
node1.flush()
node1.stop(wait_other_notice=True)
session = self.patient_cql_connection(node2, 'ks')
query = SimpleStatement('DELETE FROM cf WHERE key=\'k0\'', consistency_level=ConsistencyLevel.ONE)
session.execute(query)
node1.start(wait_other_notice=True)
# Query first column
session = self.patient_cql_connection(node1, 'ks')
assert_none(session, "SELECT c, v FROM cf WHERE key=\'k0\' LIMIT 1", cl=ConsistencyLevel.QUORUM)
def short_read_delete_test(self):
""" Test short reads ultimately leaving no columns alive [#4000] """
cluster = self.cluster
# Disable hinted handoff and set batch commit log so this doesn't
# interfere with the test
cluster.set_configuration_options(values={'hinted_handoff_enabled': False})
cluster.set_batch_commitlog(enabled=True)
cluster.populate(2).start(wait_other_notice=True)
node1, node2 = cluster.nodelist()
session = self.patient_cql_connection(node1)
create_ks(session, 'ks', 3)
create_cf(session, 'cf', read_repair=0.0)
# insert 2 columns in one row
insert_columns(self, session, 0, 2)
# Delete the row while first node is dead
node1.flush()
node1.stop(wait_other_notice=True)
session = self.patient_cql_connection(node2, 'ks')
query = SimpleStatement('DELETE FROM cf WHERE key=\'k0\'', consistency_level=ConsistencyLevel.ONE)
session.execute(query)
node1.start(wait_other_notice=True)
# Query first column
session = self.patient_cql_connection(node1, 'ks')
assert_none(session, "SELECT c, v FROM cf WHERE key=\'k0\' LIMIT 1", cl=ConsistencyLevel.QUORUM)
def test_wide_row(self):
""" Test wide row slices """
cluster = self.cluster
cluster.populate(3).start()
node1, node2, node3 = cluster.nodelist()
session = self.patient_cql_connection(node1)
create_ks(session, 'ks', 1)
create_cf(session, 'cf')
key = 'wide'
for x in range(1, 5001):
insert_columns(self, session, key, 100, offset=x - 1)
for size in (10, 100, 1000):
for x in range(1, (50001 - size) // size):
query_columns(self, session, key, size, offset=x * size - 1)
def test_wide_row(self):
""" Test wide row slices """
cluster = self.cluster
cluster.populate(3).start()
node1, node2, node3 = cluster.nodelist()
session = self.patient_cql_connection(node1)
create_ks(session, 'ks', 1)
create_cf(session, 'cf')
key = 'wide'
for x in range(1, 5001):
insert_columns(self, session, key, 100, offset=x - 1)
for size in (10, 100, 1000):
for x in range(1, (50001 - size) // size):
query_columns(self, session, key, size, offset=x * size - 1)
def short_read_test(self):
"""
@jira_ticket CASSANDRA-9460
"""
cluster = self.cluster
# Disable hinted handoff and set batch commit log so this doesn't
# interfer with the test
cluster.set_configuration_options(values={'hinted_handoff_enabled': False})
cluster.set_batch_commitlog(enabled=True)
cluster.populate(3).start(wait_other_notice=True)
node1, node2, node3 = cluster.nodelist()
session = self.patient_cql_connection(node1)
create_ks(session, 'ks', 3)
create_cf(session, 'cf', read_repair=0.0)
normal_key = 'normal'
reversed_key = 'reversed'
# Repeat this test 10 times to make it more easy to spot a null pointer exception caused by a race, see CASSANDRA-9460
for k in xrange(10):
# insert 9 columns in two rows
insert_columns(self, session, normal_key, 9)
insert_columns(self, session, reversed_key, 9)
# Delete 3 first columns (and 3 last columns, for the reversed version) with a different node dead each time
for node, column_number_to_delete in zip(range(1, 4), range(3)):
self.stop_node(node)
self.delete(node, normal_key, column_number_to_delete)
self.delete(node, reversed_key, 8 - column_number_to_delete)
self.restart_node(node)
# Query 3 firsts columns in normal order
session = self.patient_cql_connection(node1, 'ks')
query = SimpleStatement(
'SELECT c, v FROM cf WHERE key=\'k{}\' LIMIT 3'.format(normal_key),
consistency_level=ConsistencyLevel.QUORUM)
rows = list(session.execute(query))
res = rows
assert_length_equal(res, 3)
# value 0, 1 and 2 have been deleted
for i in xrange(1, 4):
self.assertEqual('value{}'.format(i + 2), res[i - 1][1])
# Query 3 firsts columns in reverse order
session = self.patient_cql_connection(node1, 'ks')
query = SimpleStatement(
'SELECT c, v FROM cf WHERE key=\'k{}\' ORDER BY c DESC LIMIT 3'.format(reversed_key),
consistency_level=ConsistencyLevel.QUORUM)
rows = list(session.execute(query))
res = rows
assert_length_equal(res, 3)
# value 6, 7 and 8 have been deleted
for i in xrange(0, 3):
self.assertEqual('value{}'.format(5 - i), res[i][1])
session.execute('TRUNCATE cf')
def short_read_test(self):
"""
@jira_ticket CASSANDRA-9460
"""
cluster = self.cluster
# Disable hinted handoff and set batch commit log so this doesn't
# interfer with the test
cluster.set_configuration_options(
values={'hinted_handoff_enabled': False})
cluster.set_batch_commitlog(enabled=True)
cluster.populate(3).start(wait_other_notice=True)
node1, node2, node3 = cluster.nodelist()
session = self.patient_cql_connection(node1)
self.create_ks(session, 'ks', 3)
self.create_cf(session, 'cf', read_repair=0.0)
normal_key = 'normal'
reversed_key = 'reversed'
# Repeat this test 10 times to make it more easy to spot a null pointer exception caused by a race, see CASSANDRA-9460
for k in xrange(10):
# insert 9 columns in two rows
insert_columns(self, session, normal_key, 9)
insert_columns(self, session, reversed_key, 9)
# Delete 3 first columns (and 3 last columns, for the reversed version) with a different node dead each time
for node, column_number_to_delete in zip(range(1, 4), range(3)):
self.stop_node(node)
self.delete(node, normal_key, column_number_to_delete)
self.delete(node, reversed_key, 8 - column_number_to_delete)
self.restart_node(node)
# Query 3 firsts columns in normal order
session = self.patient_cql_connection(node1, 'ks')
query = SimpleStatement(
'SELECT c, v FROM cf WHERE key=\'k{}\' LIMIT 3'.format(
normal_key),
consistency_level=ConsistencyLevel.QUORUM)
rows = list(session.execute(query))
res = rows
assert_length_equal(res, 3)
# value 0, 1 and 2 have been deleted
for i in xrange(1, 4):
self.assertEqual('value{}'.format(i + 2), res[i - 1][1])
# Query 3 firsts columns in reverse order
session = self.patient_cql_connection(node1, 'ks')
query = SimpleStatement(
'SELECT c, v FROM cf WHERE key=\'k{}\' ORDER BY c DESC LIMIT 3'
.format(reversed_key),
consistency_level=ConsistencyLevel.QUORUM)
rows = list(session.execute(query))
res = rows
assert_length_equal(res, 3)
# value 6, 7 and 8 have been deleted
for i in xrange(0, 3):
self.assertEqual('value{}'.format(5 - i), res[i][1])
session.execute('TRUNCATE cf')
