def test_simultaneous_bootstrap(self):
"""
Attempt to bootstrap two nodes at once, to assert the second bootstrapped node fails, and does not interfere.
Start a one node cluster and run a stress write workload.
Start up a second node, and wait for the first node to detect it has joined the cluster.
While the second node is bootstrapping, start a third node. This should fail.
@jira_ticket CASSANDRA-7069
@jira_ticket CASSANDRA-9484
"""
bootstrap_error = "Other bootstrapping/leaving/moving nodes detected," \
" cannot bootstrap while cassandra.consistent.rangemovement is true"
cluster = self.cluster
cluster.set_environment_variable(
'CASSANDRA_TOKEN_PREGENERATION_DISABLED', 'True')
cluster.populate(1)
cluster.start()
node1, = cluster.nodelist()
node1.stress([
'write', 'n=500K', 'no-warmup', '-schema', 'replication(factor=1)',
'-rate', 'threads=10'
])
node2 = new_node(cluster)
node2.start()
for _ in range(30): # wait until node2 shows up
ntout = node1.nodetool('status').stdout
if re.search(r'UJ\s+' + node2.ip_addr, ntout):
break
time.sleep(0.1)
node3 = new_node(cluster, remote_debug_port='2003')
try:
node3.start(wait_other_notice=False, verbose=False)
except NodeError:
pass # node doesn't start as expected
time.sleep(.5)
node2.watch_log_for("Starting listening for CQL clients")
node3.watch_log_for(bootstrap_error)
session = self.patient_exclusive_cql_connection(node2)
# Repeat the select count(*) query, to help catch
# bugs like 9484, where count(*) fails at higher
# data loads.
for _ in range(5):
assert_one(session,
"SELECT count(*) from keyspace1.standard1", [500000],
cl=ConsistencyLevel.ONE)
def simultaneous_bootstrap_test(self):
"""
Attempt to bootstrap two nodes at once, to assert the second bootstrapped node fails, and does not interfere.
Start a one node cluster and run a stress write workload.
Start up a second node, and wait for the first node to detect it has joined the cluster.
While the second node is bootstrapping, start a third node. This should fail.
@jira_ticket CASSANDRA-7069
@jira_ticket CASSANDRA-9484
"""
bootstrap_error = (
"Other bootstrapping/leaving/moving nodes detected,"
" cannot bootstrap while cassandra.consistent.rangemovement is true"
)
self.ignore_log_patterns.append(bootstrap_error)
cluster = self.cluster
cluster.populate(1)
cluster.start(wait_for_binary_proto=True)
node1, = cluster.nodelist()
node1.stress([
'write', 'n=500K', 'no-warmup', '-schema', 'replication(factor=1)',
'-rate', 'threads=10'
])
node2 = new_node(cluster)
node2.start(wait_other_notice=True)
node3 = new_node(cluster, remote_debug_port='2003')
process = node3.start(wait_other_notice=False)
stdout, stderr = process.communicate()
self.assertIn(bootstrap_error, stderr, msg=stderr)
time.sleep(.5)
self.assertFalse(node3.is_running(),
msg="Two nodes bootstrapped simultaneously")
node2.watch_log_for("Starting listening for CQL clients")
session = self.patient_exclusive_cql_connection(node2)
# Repeat the select count(*) query, to help catch
# bugs like 9484, where count(*) fails at higher
# data loads.
for _ in xrange(5):
assert_one(session,
"SELECT count(*) from keyspace1.standard1", [500000],
cl=ConsistencyLevel.ONE)
def test_bootstrap_waits_for_streaming_to_finish(self):
"""
Test that bootstrap completes and is marked as such after streaming finishes.
"""
cluster = self.cluster
cluster.set_environment_variable('CASSANDRA_TOKEN_PREGENERATION_DISABLED', 'True')
logger.debug("Create a cluster")
cluster.populate(1)
node1 = cluster.nodelist()[0]
logger.debug("Start node 1")
node1.start(wait_for_binary_proto=True)
logger.debug("Insert 10k rows")
node1.stress(['write', 'n=10K', 'no-warmup', '-rate', 'threads=8', '-schema', 'replication(factor=2)'])
logger.debug("Bootstrap node 2 with delay")
node2 = new_node(cluster, byteman_port='4200')
node2.update_startup_byteman_script('./byteman/bootstrap_5s_sleep.btm')
node2.start(wait_for_binary_proto=True)
assert_bootstrap_state(self, node2, 'COMPLETED')
assert node2.grep_log('Bootstrap completed', filename='debug.log')
def decommissioned_wiped_node_can_gossip_to_single_seed_test(self):
"""
@jira_ticket CASSANDRA-8072
@jira_ticket CASSANDRA-8422
Test that if we decommission a node, kill it and wipe its data, it can join a cluster with a single
seed node.
"""
cluster = self.cluster
cluster.populate(1)
cluster.start(wait_for_binary_proto=True)
# Add a new node, bootstrap=True ensures that it is not a seed
node2 = new_node(cluster, bootstrap=True)
node2.start(wait_for_binary_proto=True, wait_other_notice=True)
# Decommision the new node and kill it
debug("Decommissioning & stopping node2")
node2.decommission()
node2.stop(wait_other_notice=False)
# Wipe its data
for data_dir in node2.data_directories():
debug("Deleting {}".format(data_dir))
shutil.rmtree(data_dir)
commitlog_dir = os.path.join(node2.get_path(), 'commitlogs')
debug("Deleting {}".format(commitlog_dir))
shutil.rmtree(commitlog_dir)
# Now start it, it should be allowed to join
mark = node2.mark_log()
debug("Restarting wiped node2")
node2.start(wait_other_notice=False)
node2.watch_log_for("JOINING:", from_mark=mark)
def _do_upgrade(self, login_keyspace=True):
cluster = self.cluster
node1 = cluster.nodelist()[0]
node1.flush()
time.sleep(.5)
node1.stop(wait_other_notice=True)
node1.set_install_dir(install_dir=self.default_install_dir)
node1.start(wait_other_notice=True, wait_for_binary_proto=True)
if self.bootstrap:
cluster.set_install_dir(install_dir=self.default_install_dir)
# Add a new node, bootstrap=True ensures that it is not a seed
node2 = new_node(cluster, bootstrap=True)
node2.start(wait_for_binary_proto=True, jvm_args=self.jvm_args)
temp_files = self.glob_data_dirs(os.path.join('*', "tmp", "*.dat"))
debug("temp files: " + str(temp_files))
self.assertEquals(0, len(temp_files),
"Temporary files were not cleaned up.")
cursor = self.patient_cql_connection(node1)
if login_keyspace:
cursor.execute('USE ks')
return cursor
def test_cleanup(self):
"""
@jira_ticket CASSANDRA-11179
Make sure we remove processed files during cleanup
"""
cluster = self.cluster
cluster.set_configuration_options(values={'concurrent_compactors': 4})
cluster.populate(1)
cluster.start(wait_for_binary_proto=True)
node1, = cluster.nodelist()
for x in range(0, 5):
node1.stress([
'write', 'n=100k', 'no-warmup', '-schema',
'compaction(strategy=SizeTieredCompactionStrategy,enabled=false)',
'replication(factor=1)', '-rate', 'threads=10'
])
node1.flush()
node2 = new_node(cluster)
node2.start(wait_for_binary_proto=True, wait_other_notice=True)
event = threading.Event()
failed = threading.Event()
jobs = 1
thread = threading.Thread(
target=self._monitor_datadir,
args=(node1, event,
len(node1.get_sstables("keyspace1",
"standard1")), jobs, failed))
thread.setDaemon(True)
thread.start()
node1.nodetool("cleanup -j {} keyspace1 standard1".format(jobs))
event.set()
thread.join()
assert not failed.is_set()
def _wiped_node_cannot_join_test(self, gently):
"""
@jira_ticket CASSANDRA-9765
Test that if we stop a node and wipe its data then the node cannot join
when it is not a seed. Test both a nice shutdown or a forced shutdown, via
the gently parameter.
"""
cluster = self.cluster
cluster.populate(3)
cluster.start(wait_for_binary_proto=True)
stress_table = 'keyspace1.standard1'
# write some data
node1 = cluster.nodelist()[0]
node1.stress(['write', 'n=10K', 'no-warmup', '-rate', 'threads=8'])
session = self.patient_cql_connection(node1)
original_rows = list(session.execute("SELECT * FROM {}".format(stress_table,)))
# Add a new node, bootstrap=True ensures that it is not a seed
node4 = new_node(cluster, bootstrap=True)
node4.start(wait_for_binary_proto=True)
session = self.patient_cql_connection(node4)
assert original_rows == list(session.execute("SELECT * FROM {}".format(stress_table,)))
# Stop the new node and wipe its data
node4.stop(gently=gently)
self._cleanup(node4)
# Now start it, it should not be allowed to join.
mark = node4.mark_log()
node4.start(no_wait=True, wait_other_notice=False)
node4.watch_log_for("A node with address {} already exists, cancelling join".format(node4.address_for_current_version_slashy()), from_mark=mark)
def bootstrap_test(self):
""" Test repaired data remains in sync after a bootstrap """
cluster = self.cluster
cluster.set_configuration_options(values={'hinted_handoff_enabled': False, 'commitlog_sync_period_in_ms': 500})
cluster.populate(3).start()
node1, node2, node3 = cluster.nodelist()
session = self.patient_exclusive_cql_connection(node3)
session.execute("CREATE KEYSPACE ks WITH REPLICATION={'class':'SimpleStrategy', 'replication_factor': 2}")
session.execute("CREATE TABLE ks.tbl (k INT PRIMARY KEY, v INT)")
# insert some data
stmt = SimpleStatement("INSERT INTO ks.tbl (k,v) VALUES (%s, %s)")
for i in range(1000):
session.execute(stmt, (i, i))
node1.repair(options=['ks'])
for i in range(1000):
v = i + 1000
session.execute(stmt, (v, v))
# everything should be in sync
for node in [node1, node2, node3]:
result = node.repair(options=['ks', '--validate'])
self.assertIn("Repaired data is in sync", result.stdout)
node4 = new_node(self.cluster)
node4.start(wait_for_binary_proto=True)
self.assertEqual(len(self.cluster.nodelist()), 4)
# everything should still be in sync
for node in self.cluster.nodelist():
result = node.repair(options=['ks', '--validate'])
self.assertIn("Repaired data is in sync", result.stdout)
def _do_upgrade(self, login_keyspace=True):
cluster = self.cluster
node1 = cluster.nodelist()[0]
node1.flush()
time.sleep(.5)
node1.stop(wait_other_notice=True)
node1.set_install_dir(install_dir=self.fixture_dtest_setup.default_install_dir)
node1.start(wait_other_notice=True, wait_for_binary_proto=True)
if self.fixture_dtest_setup.bootstrap:
cluster.set_install_dir(install_dir=self.fixture_dtest_setup.default_install_dir)
# Add a new node, bootstrap=True ensures that it is not a seed
node2 = new_node(cluster, bootstrap=True)
node2.start(wait_for_binary_proto=True, jvm_args=self.fixture_dtest_setup.jvm_args)
temp_files = self.glob_data_dirs(os.path.join('*', "tmp", "*.dat"))
logger.debug("temp files: " + str(temp_files))
assert 0 == len(temp_files), "Temporary files were not cleaned up."
cursor = self.patient_cql_connection(node1)
if login_keyspace:
cursor.execute('USE ks')
return cursor
def test_manual_bootstrap(self):
"""
Test adding a new node and bootstrapping it manually. No auto_bootstrap.
This test also verify that all data are OK after the addition of the new node.
@jira_ticket CASSANDRA-9022
"""
cluster = self.cluster
cluster.populate(2).start(wait_other_notice=True)
(node1, node2) = cluster.nodelist()
node1.stress([
'write', 'n=1K', 'no-warmup', '-schema', 'replication(factor=2)',
'-rate', 'threads=1', '-pop', 'dist=UNIFORM(1..1000)'
])
session = self.patient_exclusive_cql_connection(node2)
stress_table = 'keyspace1.standard1'
original_rows = list(session.execute("SELECT * FROM %s" %
stress_table))
# Add a new node
node3 = new_node(cluster, bootstrap=False)
node3.start(wait_for_binary_proto=True)
node3.repair()
node1.cleanup()
current_rows = list(session.execute("SELECT * FROM %s" % stress_table))
assert original_rows == current_rows
def test_manual_bootstrap(self):
"""
Test adding a new node and bootstrapping it manually. No auto_bootstrap.
This test also verify that all data are OK after the addition of the new node.
@jira_ticket CASSANDRA-9022
"""
cluster = self.cluster
cluster.populate(2).start(wait_other_notice=True)
(node1, node2) = cluster.nodelist()
node1.stress(['write', 'n=1K', 'no-warmup', '-schema', 'replication(factor=2)',
'-rate', 'threads=1', '-pop', 'dist=UNIFORM(1..1000)'])
session = self.patient_exclusive_cql_connection(node2)
stress_table = 'keyspace1.standard1'
original_rows = list(session.execute("SELECT * FROM %s" % stress_table))
# Add a new node
node3 = new_node(cluster, bootstrap=False)
node3.start(wait_for_binary_proto=True)
node3.repair()
node1.cleanup()
current_rows = list(session.execute("SELECT * FROM %s" % stress_table))
assert original_rows == current_rows
def test_bootstrap_with_reset_bootstrap_state(self):
"""Test bootstrap with resetting bootstrap progress"""
cluster = self.cluster
cluster.set_configuration_options(values={'stream_throughput_outbound_megabits_per_sec': 1})
cluster.populate(2).start(wait_other_notice=True)
node1 = cluster.nodes['node1']
node1.stress(['write', 'n=100K', '-schema', 'replication(factor=2)'])
node1.flush()
# kill node1 in the middle of streaming to let it fail
t = InterruptBootstrap(node1)
t.start()
# start bootstrapping node3 and wait for streaming
node3 = new_node(cluster)
try:
node3.start()
except NodeError:
pass # node doesn't start as expected
t.join()
node1.start()
# restart node3 bootstrap with resetting bootstrap progress
node3.stop(signal_event=signal.SIGKILL)
mark = node3.mark_log()
node3.start(jvm_args=["-Dcassandra.reset_bootstrap_progress=true"])
# check if we reset bootstrap state
node3.watch_log_for("Resetting bootstrap progress to start fresh", from_mark=mark)
# wait for node3 ready to query
node3.wait_for_binary_interface(from_mark=mark)
# check if 2nd bootstrap succeeded
assert_bootstrap_state(self, node3, 'COMPLETED')
def test_decommissioned_wiped_node_can_join(self):
"""
@jira_ticket CASSANDRA-9765
Test that if we decommission a node and then wipe its data, it can join the cluster.
"""
cluster = self.cluster
cluster.populate(3)
cluster.start(wait_for_binary_proto=True)
stress_table = 'keyspace1.standard1'
# write some data
node1 = cluster.nodelist()[0]
node1.stress(['write', 'n=10K', 'no-warmup', '-rate', 'threads=8'])
session = self.patient_cql_connection(node1)
original_rows = list(
session.execute("SELECT * FROM {}".format(stress_table, )))
# Add a new node, bootstrap=True ensures that it is not a seed
node4 = new_node(cluster, bootstrap=True)
node4.start(wait_for_binary_proto=True, wait_other_notice=True)
session = self.patient_cql_connection(node4)
assert original_rows == list(
session.execute("SELECT * FROM {}".format(stress_table, )))
# Decommission the new node and wipe its data
node4.decommission()
node4.stop()
self._cleanup(node4)
# Now start it, it should be allowed to join
mark = node4.mark_log()
node4.start(wait_other_notice=True)
node4.watch_log_for("JOINING:", from_mark=mark)
def test_read_from_bootstrapped_node(self):
"""
Test bootstrapped node sees existing data
@jira_ticket CASSANDRA-6648
"""
cluster = self.cluster
cluster.populate(3)
cluster.start()
node1 = cluster.nodes['node1']
node1.stress([
'write', 'n=10K', 'no-warmup', '-rate', 'threads=8', '-schema',
'replication(factor=2)'
])
session = self.patient_cql_connection(node1)
stress_table = 'keyspace1.standard1'
original_rows = list(
session.execute("SELECT * FROM %s" % (stress_table, )))
node4 = new_node(cluster)
node4.start(wait_for_binary_proto=True)
session = self.patient_exclusive_cql_connection(node4)
new_rows = list(session.execute("SELECT * FROM %s" % (stress_table, )))
assert original_rows == new_rows
def test_local_quorum_bootstrap(self):
"""
Test that CL local_quorum works while a node is bootstrapping.
@jira_ticket CASSANDRA-8058
"""
cluster = self.cluster
cluster.populate([1, 1])
cluster.start()
node1 = cluster.nodes['node1']
yaml_config = """
# Create the keyspace and table
keyspace: keyspace1
keyspace_definition: |
CREATE KEYSPACE keyspace1 WITH replication = {'class': 'NetworkTopologyStrategy', 'dc1': 1, 'dc2': 1};
table: users
table_definition:
CREATE TABLE users (
username text,
first_name text,
last_name text,
email text,
PRIMARY KEY(username)
) WITH compaction = {'class':'SizeTieredCompactionStrategy'};
insert:
partitions: fixed(1)
batchtype: UNLOGGED
queries:
read:
cql: select * from users where username = ?
fields: samerow
"""
with tempfile.NamedTemporaryFile(mode='w+') as stress_config:
stress_config.write(yaml_config)
stress_config.flush()
node1.stress([
'user', 'profile=' + stress_config.name, 'n=200K', 'no-warmup',
'ops(insert=1)', '-rate', 'threads=10'
])
node3 = new_node(cluster, data_center='dc2')
node3.start(jvm_args=["-Dcassandra.write_survey=true"],
no_wait=True)
time.sleep(5)
ntout = node1.nodetool('status').stdout
assert re.search(r'UJ\s+' + node3.ip_addr, ntout), ntout
out, err, _ = node1.stress([
'user', 'profile=' + stress_config.name, 'ops(insert=1)',
'n=10k', 'no-warmup', 'cl=LOCAL_QUORUM', '-rate', 'threads=10',
'-errors', 'retries=2'
])
ntout = node1.nodetool('status').stdout
assert re.search(r'UJ\s+' + node3.ip_addr, ntout), ntout
logger.debug(out)
assert_stderr_clean(err)
regex = re.compile("Operation.+error inserting key.+Exception")
failure = regex.search(str(out))
assert failure is None, "Error during stress while bootstrapping"
def bootstrap_test(self):
""" Test repaired data remains in sync after a bootstrap """
cluster = self.cluster
cluster.set_configuration_options(values={'hinted_handoff_enabled': False, 'commitlog_sync_period_in_ms': 500})
cluster.populate(3).start()
node1, node2, node3 = cluster.nodelist()
session = self.patient_exclusive_cql_connection(node3)
session.execute("CREATE KEYSPACE ks WITH REPLICATION={'class':'SimpleStrategy', 'replication_factor': 2}")
session.execute("CREATE TABLE ks.tbl (k INT PRIMARY KEY, v INT)")
# insert some data
stmt = SimpleStatement("INSERT INTO ks.tbl (k,v) VALUES (%s, %s)")
for i in range(1000):
session.execute(stmt, (i, i))
node1.repair(options=['ks'])
for i in range(1000):
v = i + 1000
session.execute(stmt, (v, v))
# everything should be in sync
for node in [node1, node2, node3]:
result = node.repair(options=['ks', '--validate'])
self.assertIn("Repaired data is in sync", result.stdout)
node4 = new_node(self.cluster)
node4.start(wait_for_binary_proto=True)
self.assertEqual(len(self.cluster.nodelist()), 4)
# everything should still be in sync
for node in self.cluster.nodelist():
result = node.repair(options=['ks', '--validate'])
self.assertIn("Repaired data is in sync", result.stdout)
def test_decommissioned_wiped_node_can_join(self):
"""
@jira_ticket CASSANDRA-9765
Test that if we decommission a node and then wipe its data, it can join the cluster.
"""
cluster = self.cluster
cluster.populate(3)
cluster.start(wait_for_binary_proto=True)
stress_table = 'keyspace1.standard1'
# write some data
node1 = cluster.nodelist()[0]
node1.stress(['write', 'n=10K', 'no-warmup', '-rate', 'threads=8'])
session = self.patient_cql_connection(node1)
original_rows = list(session.execute("SELECT * FROM {}".format(stress_table,)))
# Add a new node, bootstrap=True ensures that it is not a seed
node4 = new_node(cluster, bootstrap=True)
node4.start(wait_for_binary_proto=True, wait_other_notice=True)
session = self.patient_cql_connection(node4)
assert original_rows == list(session.execute("SELECT * FROM {}".format(stress_table,)))
# Decommission the new node and wipe its data
node4.decommission()
node4.stop()
self._cleanup(node4)
# Now start it, it should be allowed to join
mark = node4.mark_log()
node4.start(wait_other_notice=True)
node4.watch_log_for("JOINING:", from_mark=mark)
def decommissioned_wiped_node_can_gossip_to_single_seed_test(self):
"""
@jira_ticket CASSANDRA-8072
@jira_ticket CASSANDRA-8422
Test that if we decommission a node, kill it and wipe its data, it can join a cluster with a single
seed node.
"""
cluster = self.cluster
cluster.populate(1)
cluster.start(wait_for_binary_proto=True)
# Add a new node, bootstrap=True ensures that it is not a seed
node2 = new_node(cluster, bootstrap=True)
node2.start(wait_for_binary_proto=True, wait_other_notice=True)
# Decommision the new node and kill it
debug("Decommissioning & stopping node2")
node2.decommission()
node2.stop(wait_other_notice=False)
# Wipe its data
for data_dir in node2.data_directories():
debug("Deleting {}".format(data_dir))
shutil.rmtree(data_dir)
commitlog_dir = os.path.join(node2.get_path(), 'commitlogs')
debug("Deleting {}".format(commitlog_dir))
shutil.rmtree(commitlog_dir)
# Now start it, it should be allowed to join
mark = node2.mark_log()
debug("Restarting wiped node2")
node2.start(wait_other_notice=False)
node2.watch_log_for("JOINING:", from_mark=mark)
def test_cleanup(self):
"""
@jira_ticket CASSANDRA-11179
Make sure we remove processed files during cleanup
"""
cluster = self.cluster
cluster.set_configuration_options(values={'concurrent_compactors': 4})
cluster.populate(1)
cluster.start(wait_for_binary_proto=True)
node1, = cluster.nodelist()
for x in range(0, 5):
node1.stress(['write', 'n=100k', 'no-warmup', '-schema', 'compaction(strategy=SizeTieredCompactionStrategy,enabled=false)', 'replication(factor=1)', '-rate', 'threads=10'])
node1.flush()
node2 = new_node(cluster)
node2.start(wait_for_binary_proto=True, wait_other_notice=True)
event = threading.Event()
failed = threading.Event()
jobs = 1
thread = threading.Thread(target=self._monitor_datadir, args=(node1, event, len(node1.get_sstables("keyspace1", "standard1")), jobs, failed))
thread.setDaemon(True)
thread.start()
node1.nodetool("cleanup -j {} keyspace1 standard1".format(jobs))
event.set()
thread.join()
assert not failed.is_set()
def _bootstrap_test_with_replica_down(self, consistent_range_movement, rf=2):
"""
Test to check consistent bootstrap will not succeed when there are insufficient replicas
@jira_ticket CASSANDRA-11848
"""
cluster = self.cluster
cluster.set_environment_variable('CASSANDRA_TOKEN_PREGENERATION_DISABLED', 'True')
cluster.populate(2)
node1, node2 = cluster.nodelist()
node3_token = None
# Make token assignment deterministic
if not self.dtest_config.use_vnodes:
cluster.set_configuration_options(values={'num_tokens': 1})
tokens = cluster.balanced_tokens(3)
logger.debug("non-vnode tokens: %r" % (tokens,))
node1.set_configuration_options(values={'initial_token': tokens[0]})
node2.set_configuration_options(values={'initial_token': tokens[2]})
node3_token = tokens[1] # Add node 3 between node1 and node2
cluster.start()
node1.stress(['write', 'n=10K', 'no-warmup', '-rate', 'threads=8', '-schema', 'replication(factor={})'.format(rf)])
# change system_auth keyspace to 2 (default is 1) to avoid
# "Unable to find sufficient sources for streaming" warning
if cluster.cassandra_version() >= '2.2.0':
session = self.patient_cql_connection(node1)
session.execute("""
ALTER KEYSPACE system_auth
WITH replication = {'class':'SimpleStrategy', 'replication_factor':2};
""")
# Stop node2, so node3 will not be able to perform consistent range movement
node2.stop(wait_other_notice=True)
successful_bootstrap_expected = not consistent_range_movement
node3 = new_node(cluster, token=node3_token)
node3.start(wait_for_binary_proto=successful_bootstrap_expected, wait_other_notice=successful_bootstrap_expected,
jvm_args=["-Dcassandra.consistent.rangemovement={}".format(consistent_range_movement)])
if successful_bootstrap_expected:
# with rf=1 and cassandra.consistent.rangemovement=false, missing sources are ignored
if not consistent_range_movement and rf == 1:
node3.watch_log_for("Unable to find sufficient sources for streaming range")
assert node3.is_running()
assert_bootstrap_state(self, node3, 'COMPLETED')
else:
if consistent_range_movement:
if cluster.version() < '4.0':
node3.watch_log_for("A node required to move the data consistently is down")
else:
node3.watch_log_for("Necessary replicas for strict consistency were removed by source filters")
else:
node3.watch_log_for("Unable to find sufficient sources for streaming range")
assert_not_running(node3)
def _disk_balance_after_boundary_change_test(self, lcs):
"""
@jira_ticket CASSANDRA-13948
- Creates a 1 node cluster with 5 disks and insert data with compaction disabled
- Bootstrap a node2 to make disk boundary changes on node1
- Enable compaction on node1 and check disks are balanced
- Decommission node1 to make disk boundary changes on node2
- Enable compaction on node2 and check disks are balanced
"""
cluster = self.cluster
if self.dtest_config.use_vnodes:
cluster.set_configuration_options(values={'num_tokens': 1024})
num_disks = 5
cluster.set_datadir_count(num_disks)
cluster.set_configuration_options(values={'concurrent_compactors': num_disks})
logger.debug("Starting node1 with {} data dirs and concurrent_compactors".format(num_disks))
cluster.populate(1).start(wait_for_binary_proto=True)
[node1] = cluster.nodelist()
session = self.patient_cql_connection(node1)
# reduce system_distributed RF to 1 so we don't require forceful decommission
session.execute("ALTER KEYSPACE system_distributed WITH REPLICATION = {'class':'SimpleStrategy', 'replication_factor':'1'};")
session.execute("ALTER KEYSPACE system_traces WITH REPLICATION = {'class':'SimpleStrategy', 'replication_factor':'1'};")
num_flushes = 10
keys_per_flush = 10000
keys_to_write = num_flushes * keys_per_flush
compaction_opts = "LeveledCompactionStrategy,sstable_size_in_mb=1" if lcs else "SizeTieredCompactionStrategy"
logger.debug("Writing {} keys in {} flushes (compaction_opts={})".format(keys_to_write, num_flushes, compaction_opts))
total_keys = num_flushes * keys_per_flush
current_keys = 0
while current_keys < total_keys:
start_key = current_keys + 1
end_key = current_keys + keys_per_flush
logger.debug("Writing keys {}..{} and flushing".format(start_key, end_key))
node1.stress(['write', 'n={}'.format(keys_per_flush), "no-warmup", "cl=ALL", "-pop",
"seq={}..{}".format(start_key, end_key), "-rate", "threads=1", "-schema", "replication(factor=1)",
"compaction(strategy={},enabled=false)".format(compaction_opts)])
node1.nodetool('flush keyspace1 standard1')
current_keys = end_key
# Add a new node, so disk boundaries will change
logger.debug("Bootstrap node2 and flush")
node2 = new_node(cluster, bootstrap=True)
node2.start(wait_for_binary_proto=True, jvm_args=["-Dcassandra.migration_task_wait_in_seconds=10"], set_migration_task=False)
node2.flush()
self._assert_balanced_after_boundary_change(node1, total_keys, lcs)
logger.debug("Decommissioning node1")
node1.decommission()
node1.stop()
self._assert_balanced_after_boundary_change(node2, total_keys, lcs)
def test_simultaneous_bootstrap(self):
"""
Attempt to bootstrap two nodes at once, to assert the second bootstrapped node fails, and does not interfere.
Start a one node cluster and run a stress write workload.
Start up a second node, and wait for the first node to detect it has joined the cluster.
While the second node is bootstrapping, start a third node. This should fail.
@jira_ticket CASSANDRA-7069
@jira_ticket CASSANDRA-9484
"""
bootstrap_error = "Other bootstrapping/leaving/moving nodes detected," \
" cannot bootstrap while cassandra.consistent.rangemovement is true"
cluster = self.cluster
cluster.populate(1)
cluster.start(wait_for_binary_proto=True)
node1, = cluster.nodelist()
node1.stress(['write', 'n=500K', 'no-warmup', '-schema', 'replication(factor=1)',
'-rate', 'threads=10'])
node2 = new_node(cluster)
node2.start(wait_other_notice=True)
node3 = new_node(cluster, remote_debug_port='2003')
try:
node3.start(wait_other_notice=False, verbose=False)
except NodeError:
pass # node doesn't start as expected
time.sleep(.5)
node2.watch_log_for("Starting listening for CQL clients")
node3.watch_log_for(bootstrap_error)
session = self.patient_exclusive_cql_connection(node2)
# Repeat the select count(*) query, to help catch
# bugs like 9484, where count(*) fails at higher
# data loads.
for _ in range(5):
assert_one(session, "SELECT count(*) from keyspace1.standard1", [500000], cl=ConsistencyLevel.ONE)
def bootstrap_with_compatibility_flag_on(cluster, token):
node2 = new_node(cluster)
node2.set_configuration_options(values={'initial_token': token})
# cassandra.force_3_0_protocol_version parameter is needed to allow schema
# changes during the bootstrapping for upgrades from 3.0.14+ to anything upwards for 3.0.x or 3.x clusters.
# @jira_ticket CASSANDRA-13004 for detailed context on `cassandra.force_3_0_protocol_version` flag
node2.start(jvm_args=["-Dcassandra.force_3_0_protocol_version=true"],
wait_for_binary_proto=True)
return node2
def test_remove(self):
"""Test a mix of ring change operations across a mix of transient and repaired/unrepaired data"""
node4 = new_node(self.cluster, bootstrap=True, token='00040')
patch_start(node4)
node4.start(wait_for_binary_proto=True, wait_other_notice=True)
main_session = self.patient_cql_connection(self.node1)
nodes = [self.node1, self.node2, self.node3]
#We want the node being removed to have no data on it so nodetool remove always gets all the necessary data
#from survivors
node4_id = node4.nodetool('info').stdout[25:61]
node4.stop(wait_other_notice=True)
for i in range(0, 40):
print("Inserting " + str(i))
self.insert_row(i, i, i, main_session)
sessions = [
self.exclusive_cql_connection(node)
for node in [self.node1, self.node2, self.node3]
]
expected = [
gen_expected(range(0, 11), range(21, 40)),
gen_expected(range(0, 21), range(31, 40)),
gen_expected(range(11, 31))
]
# Every node should some of its fully replicated data and one and two should have some transient data
self.check_expected(sessions, expected)
nodes[0].nodetool('removenode ' + node4_id)
#Give streaming time to occur, it's asynchronous from removenode completing at other ndoes
import time
time.sleep(15)
# Everyone should have everything except
expected = [
gen_expected(range(0, 40)),
gen_expected(range(0, 40)),
gen_expected(range(0, 40))
]
self.check_replication(sessions, exactly=3)
self.check_expected(sessions, expected)
repair_nodes(nodes)
cleanup_nodes(nodes)
self.check_replication(sessions, exactly=2)
expected = [
gen_expected(range(0, 11), range(21, 40)),
gen_expected(range(0, 21), range(31, 40)),
gen_expected(range(11, 31))
]
self.check_expected(sessions, expected)
def _bootstrap_new_node(self):
# Check we can bootstrap a new node on the upgraded cluster:
logger.debug("Adding a node to the cluster")
nnode = new_node(self.cluster, remote_debug_port=str(2000 + len(self.cluster.nodes)))
nnode.start(use_jna=True, wait_other_notice=240, wait_for_binary_proto=True)
self._write_values()
self._increment_counters()
self._check_values()
self._check_counters()
def _bootstrap_new_node(self):
# Check we can bootstrap a new node on the upgraded cluster:
debug("Adding a node to the cluster")
nnode = new_node(self.cluster, remote_debug_port=str(2000 + len(self.cluster.nodes)))
nnode.start(use_jna=True, wait_other_notice=240, wait_for_binary_proto=True)
self._write_values()
self._increment_counters()
self._check_values()
self._check_counters()
def test_decommission(self):
"""Test decommissioning a node correctly streams out all the data"""
node4 = new_node(self.cluster, bootstrap=True, token='00040')
patch_start(node4)
node4.start(wait_for_binary_proto=True, wait_other_notice=True)
main_session = self.patient_cql_connection(self.node1)
nodes = [self.node1, self.node2, self.node3, node4]
for i in range(0, 40, 2):
print("Inserting " + str(i))
self.insert_row(i, i, i, main_session)
# Make sure at least a little data is repaired
repair_nodes(nodes)
# Ensure that there is at least some transient data around, because of this if it's missing after bootstrap
# We know we failed to get it from the transient replica losing the range entirely
nodes[1].stop(wait_other_notice=True)
for i in range(1, 40, 2):
print("Inserting " + str(i))
self.insert_row(i, i, i, main_session)
nodes[1].start(wait_for_binary_proto=True, wait_other_notice=True)
sessions = [self.exclusive_cql_connection(node) for node in [self.node1, self.node2, self.node3, node4]]
expected = [gen_expected(range(0, 11), range(31, 40)),
gen_expected(range(0, 21, 2)),
gen_expected(range(1, 11, 2), range(11, 31)),
gen_expected(range(11, 20, 2), range(21, 40))]
self.check_expected(sessions, expected)
#node1 has transient data we want to see streamed out on move
nodes[3].nodetool('decommission')
nodes = nodes[:-1]
sessions = sessions[:-1]
expected = [gen_expected(range(0, 11), range(11, 21, 2), range(21, 40)),
gen_expected(range(0, 21, 2), range(21, 30, 2), range(31, 40)),
gen_expected(range(1, 11, 2), range(11, 31), range(31, 40, 2))]
cleanup_nodes(nodes)
self.check_replication(sessions, gte=2, lte=3)
self.check_expected(sessions, expected)
repair_nodes(nodes)
#There should be no transient data anywhere
expected = [gen_expected(range(0, 11), range(21, 40)),
gen_expected(range(0, 21), range(31, 40)),
gen_expected(range(11, 31))]
self.check_expected(sessions, expected, nodes, cleanup=True)
self.check_replication(sessions, exactly=2)
def _bootstrap_test_with_replica_down(self, consistent_range_movement, rf=2):
"""
Test to check consistent bootstrap will not succeed when there are insufficient replicas
@jira_ticket CASSANDRA-11848
"""
cluster = self.cluster
cluster.populate(2)
node1, node2 = cluster.nodelist()
node3_token = None
# Make token assignment deterministic
if not self.dtest_config.use_vnodes:
cluster.set_configuration_options(values={'num_tokens': 1})
tokens = cluster.balanced_tokens(3)
logger.debug("non-vnode tokens: %r" % (tokens,))
node1.set_configuration_options(values={'initial_token': tokens[0]})
node2.set_configuration_options(values={'initial_token': tokens[2]})
node3_token = tokens[1] # Add node 3 between node1 and node2
cluster.start()
node1.stress(['write', 'n=10K', 'no-warmup', '-rate', 'threads=8', '-schema', 'replication(factor={})'.format(rf)])
# change system_auth keyspace to 2 (default is 1) to avoid
# "Unable to find sufficient sources for streaming" warning
if cluster.cassandra_version() >= '2.2.0':
session = self.patient_cql_connection(node1)
session.execute("""
ALTER KEYSPACE system_auth
WITH replication = {'class':'SimpleStrategy', 'replication_factor':2};
""")
# Stop node2, so node3 will not be able to perform consistent range movement
node2.stop(wait_other_notice=True)
successful_bootstrap_expected = not consistent_range_movement
node3 = new_node(cluster, token=node3_token)
node3.start(wait_for_binary_proto=successful_bootstrap_expected, wait_other_notice=successful_bootstrap_expected,
jvm_args=["-Dcassandra.consistent.rangemovement={}".format(consistent_range_movement)])
if successful_bootstrap_expected:
# with rf=1 and cassandra.consistent.rangemovement=false, missing sources are ignored
if not consistent_range_movement and rf == 1:
node3.watch_log_for("Unable to find sufficient sources for streaming range")
assert node3.is_running()
assert_bootstrap_state(self, node3, 'COMPLETED')
else:
if consistent_range_movement:
if cluster.version() < '4.0':
node3.watch_log_for("A node required to move the data consistently is down")
else:
node3.watch_log_for("Necessary replicas for strict consistency were removed by source filters")
else:
node3.watch_log_for("Unable to find sufficient sources for streaming range")
assert_not_running(node3)
def bootstrap_with_compatibility_flag_on(cluster, token):
node2 = new_node(cluster)
node2.set_configuration_options(values={'initial_token': token})
# cassandra.force_3_0_protocol_version parameter is needed to allow schema
# changes during the bootstrapping for upgrades from 3.0.14+ to anything upwards for 3.0.x or 3.x clusters.
# @jira_ticket CASSANDRA-13004 for detailed context on `cassandra.force_3_0_protocol_version` flag
node2.start(jvm_args=["-Dcassandra.force_3_0_protocol_version=true"],
wait_for_binary_proto=True)
return node2
def test_resumable_bootstrap(self):
"""
Test resuming bootstrap after data streaming failure
"""
cluster = self.cluster
cluster.populate(2)
node1 = cluster.nodes['node1']
# set up byteman
node1.byteman_port = '8100'
node1.import_config_files()
cluster.start(wait_other_notice=True)
# kill stream to node3 in the middle of streaming to let it fail
if cluster.version() < '4.0':
node1.byteman_submit(['./byteman/pre4.0/stream_failure.btm'])
else:
node1.byteman_submit(['./byteman/4.0/stream_failure.btm'])
node1.stress([
'write', 'n=1K', 'no-warmup', 'cl=TWO', '-schema',
'replication(factor=2)', '-rate', 'threads=50'
])
cluster.flush()
# start bootstrapping node3 and wait for streaming
node3 = new_node(cluster)
node3.start(wait_other_notice=False, wait_for_binary_proto=True)
# wait for node3 ready to query
node3.watch_log_for("Starting listening for CQL clients")
mark = node3.mark_log()
# check if node3 is still in bootstrap mode
retry_till_success(assert_bootstrap_state,
tester=self,
node=node3,
expected_bootstrap_state='IN_PROGRESS',
timeout=120)
# bring back node1 and invoke nodetool bootstrap to resume bootstrapping
node3.nodetool('bootstrap resume')
node3.watch_log_for("Resume complete", from_mark=mark)
assert_bootstrap_state(self, node3, 'COMPLETED')
# cleanup to guarantee each node will only have sstables of its ranges
cluster.cleanup()
logger.debug("Check data is present")
# Let's check stream bootstrap completely transferred data
stdout, stderr, _ = node3.stress([
'read', 'n=1k', 'no-warmup', '-schema', 'replication(factor=2)',
'-rate', 'threads=8'
])
if stdout is not None:
assert "FAILURE" not in stdout
def bootstrap_on_write_survey_and_join(cluster, token):
node2 = new_node(cluster)
node2.set_configuration_options(values={'initial_token': token})
node2.start(jvm_args=["-Dcassandra.write_survey=true"], wait_for_binary_proto=True)
assert len(node2.grep_log('Startup complete, but write survey mode is active, not becoming an active ring member.'))
assert_bootstrap_state(self, node2, 'IN_PROGRESS')
node2.nodetool("join")
assert len(node2.grep_log('Leaving write survey mode and joining ring at operator request'))
return node2
def local_quorum_bootstrap_test(self):
"""
Test that CL local_quorum works while a node is bootstrapping.
@jira_ticket CASSANDRA-8058
"""
cluster = self.cluster
cluster.populate([1, 1])
cluster.start()
node1 = cluster.nodes['node1']
yaml_config = """
# Create the keyspace and table
keyspace: keyspace1
keyspace_definition: |
CREATE KEYSPACE keyspace1 WITH replication = {'class': 'NetworkTopologyStrategy', 'dc1': 1, 'dc2': 1};
table: users
table_definition:
CREATE TABLE users (
username text,
first_name text,
last_name text,
email text,
PRIMARY KEY(username)
) WITH compaction = {'class':'SizeTieredCompactionStrategy'};
insert:
partitions: fixed(1)
batchtype: UNLOGGED
queries:
read:
cql: select * from users where username = ?
fields: samerow
"""
with tempfile.NamedTemporaryFile(mode='w+') as stress_config:
stress_config.write(yaml_config)
stress_config.flush()
node1.stress(['user', 'profile=' + stress_config.name, 'n=2M', 'no-warmup',
'ops(insert=1)', '-rate', 'threads=50'])
node3 = new_node(cluster, data_center='dc2')
node3.start(no_wait=True)
time.sleep(3)
out, err, _ = node1.stress(['user', 'profile=' + stress_config.name, 'ops(insert=1)',
'n=500K', 'no-warmup', 'cl=LOCAL_QUORUM',
'-rate', 'threads=5',
'-errors', 'retries=2'])
debug(out)
assert_stderr_clean(err)
regex = re.compile("Operation.+error inserting key.+Exception")
failure = regex.search(out)
self.assertIsNone(failure, "Error during stress while bootstrapping")
def move_test(self, move_token, expected_after_move,
expected_after_repair):
"""Helper method to run a move test cycle"""
node4 = new_node(self.cluster, bootstrap=True, token='00040')
patch_start(node4)
node4.start(wait_for_binary_proto=True)
main_session = self.patient_cql_connection(self.node1)
nodes = [self.node1, self.node2, self.node3, node4]
for i in range(0, 40, 2):
print("Inserting " + str(i))
self.insert_row(i, i, i, main_session)
# Make sure at least a little data is repaired
repair_nodes(nodes)
# Ensure that there is at least some transient data around, because of this if it's missing after bootstrap
# We know we failed to get it from the transient replica losing the range entirely
nodes[1].stop(wait_other_notice=True)
for i in range(1, 40, 2):
print("Inserting " + str(i))
self.insert_row(i, i, i, main_session)
nodes[1].start(wait_for_binary_proto=True)
sessions = [
self.exclusive_cql_connection(node)
for node in [self.node1, self.node2, self.node3, node4]
]
expected = [
gen_expected(range(0, 11), range(31, 40)),
gen_expected(range(0, 21, 2)),
gen_expected(range(1, 11, 2), range(11, 31)),
gen_expected(range(11, 20, 2), range(21, 40))
]
self.check_expected(sessions, expected)
self.check_replication(sessions, exactly=2)
nodes[0].nodetool('move %s' % move_token)
cleanup_nodes(nodes)
self.check_replication(sessions, gte=2, lte=3)
self.check_expected(sessions, expected=expected_after_move)
repair_nodes(nodes)
self.check_expected(sessions,
expected_after_repair,
nodes,
cleanup=True)
self.check_replication(sessions, exactly=2)
def test_consistent_reads_after_bootstrap(self):
logger.debug("Creating a ring")
cluster = self.cluster
cluster.set_configuration_options(
values={
'hinted_handoff_enabled': False,
'write_request_timeout_in_ms': 60000,
'read_request_timeout_in_ms': 60000,
'dynamic_snitch_badness_threshold': 0.0
})
cluster.set_batch_commitlog(enabled=True)
cluster.populate(2)
node1, node2 = cluster.nodelist()
cluster.start(wait_for_binary_proto=True, wait_other_notice=True)
logger.debug("Set to talk to node 2")
n2session = self.patient_cql_connection(node2)
create_ks(n2session, 'ks', 2)
create_c1c2_table(self, n2session)
logger.debug("Generating some data for all nodes")
insert_c1c2(n2session,
keys=list(range(10, 20)),
consistency=ConsistencyLevel.ALL)
node1.flush()
logger.debug("Taking down node1")
node1.stop(wait_other_notice=True)
logger.debug("Writing data to only node2")
insert_c1c2(n2session,
keys=list(range(30, 1000)),
consistency=ConsistencyLevel.ONE)
node2.flush()
logger.debug("Restart node1")
node1.start(wait_other_notice=True)
logger.debug("Bootstraping node3")
node3 = new_node(cluster)
node3.start(wait_for_binary_proto=True)
n3session = self.patient_cql_connection(node3)
n3session.execute("USE ks")
logger.debug("Checking that no data was lost")
for n in range(10, 20):
query_c1c2(n3session, n, ConsistencyLevel.ALL)
for n in range(30, 1000):
query_c1c2(n3session, n, ConsistencyLevel.ALL)
def disk_balance_bootstrap_test(self):
cluster = self.cluster
if not DISABLE_VNODES:
cluster.set_configuration_options(values={'num_tokens': 256})
# apparently we have legitimate errors in the log when bootstrapping (see bootstrap_test.py)
self.allow_log_errors = True
cluster.populate(4).start(wait_for_binary_proto=True)
node1 = cluster.nodes['node1']
node1.stress(['write', 'n=50k', 'no-warmup', '-rate', 'threads=100', '-schema', 'replication(factor=3)', 'compaction(strategy=SizeTieredCompactionStrategy,enabled=false)'])
cluster.flush()
node5 = new_node(cluster)
node5.start(wait_for_binary_proto=True)
self.assert_balanced(node5)
def test_resumable_bootstrap(self):
"""
Test resuming bootstrap after data streaming failure
"""
cluster = self.cluster
cluster.set_environment_variable(
'CASSANDRA_TOKEN_PREGENERATION_DISABLED', 'True')
cluster.populate(2)
node1 = cluster.nodes['node1']
# set up byteman
node1.byteman_port = '8100'
node1.import_config_files()
cluster.start()
# kill stream to node3 in the middle of streaming to let it fail
if cluster.version() < '4.0':
node1.byteman_submit([self.byteman_submit_path_pre_4_0])
else:
node1.byteman_submit([self.byteman_submit_path_4_0])
node1.stress([
'write', 'n=1K', 'no-warmup', 'cl=TWO', '-schema',
'replication(factor=2)', '-rate', 'threads=50'
])
cluster.flush()
# start bootstrapping node3 and wait for streaming
node3 = new_node(cluster)
node3.start(wait_other_notice=False)
# let streaming fail as we expect
node3.watch_log_for('Some data streaming failed')
# bring back node3 and invoke nodetool bootstrap to resume bootstrapping
node3.nodetool('bootstrap resume')
node3.wait_for_binary_interface()
assert_bootstrap_state(self, node3, 'COMPLETED')
# cleanup to guarantee each node will only have sstables of its ranges
cluster.cleanup()
logger.debug("Check data is present")
# Let's check stream bootstrap completely transferred data
stdout, stderr, _ = node3.stress([
'read', 'n=1k', 'no-warmup', '-schema', 'replication(factor=2)',
'-rate', 'threads=8'
])
if stdout is not None:
assert "FAILURE" not in stdout
def test_simple_bootstrap_small_keepalive_period(self):
"""
@jira_ticket CASSANDRA-11841
Test that bootstrap completes if it takes longer than streaming_socket_timeout_in_ms or
2*streaming_keep_alive_period_in_secs to receive a single sstable
"""
cluster = self.cluster
yaml_opts = {'streaming_keep_alive_period_in_secs': 2}
if cluster.version() < '4.0':
yaml_opts['streaming_socket_timeout_in_ms'] = 1000
cluster.set_configuration_options(values=yaml_opts)
# Create a single node cluster
cluster.populate(1)
node1 = cluster.nodelist()[0]
logger.debug("Setting up byteman on {}".format(node1.name))
# set up byteman
node1.byteman_port = '8100'
node1.import_config_files()
cluster.start()
# Create more than one sstable larger than 1MB
node1.stress([
'write', 'n=1K', '-rate', 'threads=8', '-schema',
'compaction(strategy=SizeTieredCompactionStrategy, enabled=false)'
])
cluster.flush()
logger.debug("Submitting byteman script to {} to".format(node1.name))
# Sleep longer than streaming_socket_timeout_in_ms to make sure the node will not be killed
node1.byteman_submit([mk_bman_path('stream_5s_sleep.btm')])
# Bootstraping a new node with very small streaming_socket_timeout_in_ms
node2 = new_node(cluster)
node2.start(wait_for_binary_proto=True)
# Shouldn't fail due to streaming socket timeout timeout
assert_bootstrap_state(self, node2, 'COMPLETED')
if cluster.version() < '4.0':
for node in cluster.nodelist():
assert node.grep_log(
'Scheduling keep-alive task with 2s period.',
filename='debug.log')
assert node.grep_log('Sending keep-alive',
filename='debug.log')
assert node.grep_log('Received keep-alive',
filename='debug.log')
def test_decommissioned_wiped_node_can_gossip_to_single_seed(self):
"""
@jira_ticket CASSANDRA-8072
@jira_ticket CASSANDRA-8422
Test that if we decommission a node, kill it and wipe its data, it can join a cluster with a single
seed node.
"""
cluster = self.cluster
cluster.set_environment_variable(
'CASSANDRA_TOKEN_PREGENERATION_DISABLED', 'True')
cluster.populate(1)
cluster.start()
node1 = cluster.nodelist()[0]
# Add a new node, bootstrap=True ensures that it is not a seed
node2 = new_node(cluster, bootstrap=True)
node2.start(wait_for_binary_proto=True)
session = self.patient_cql_connection(node1)
if cluster.version() >= '2.2':
# reduce system_distributed RF to 2 so we don't require forceful decommission
session.execute(
"ALTER KEYSPACE system_distributed WITH REPLICATION = {'class':'SimpleStrategy', 'replication_factor':'1'};"
)
session.execute(
"ALTER KEYSPACE system_traces WITH REPLICATION = {'class':'SimpleStrategy', 'replication_factor':'1'};"
)
# Decommision the new node and kill it
logger.debug("Decommissioning & stopping node2")
node2.decommission()
node2.stop(wait_other_notice=False)
# Wipe its data
for data_dir in node2.data_directories():
logger.debug("Deleting {}".format(data_dir))
shutil.rmtree(data_dir)
commitlog_dir = os.path.join(node2.get_path(), 'commitlogs')
logger.debug("Deleting {}".format(commitlog_dir))
shutil.rmtree(commitlog_dir)
# Now start it, it should be allowed to join
mark = node2.mark_log()
logger.debug("Restarting wiped node2")
node2.start(wait_other_notice=False)
node2.watch_log_for("JOINING:", from_mark=mark)
def test_wait_for_schema(self):
#start a one node cluster
cluster = self.cluster
cluster.populate(1, install_byteman=True)
node1 = cluster.nodes['node1']
cluster.start()
session = self.patient_cql_connection(node1)
create_ks(session, 'ks', 2)
create_cf(session, 'cf', columns={'c1': 'text', 'c2': 'text'})
empty_size = data_size(node1, 'ks', 'cf')
keys = 1000
insert_statement = session.prepare(
"INSERT INTO ks.cf (key, c1, c2) VALUES (?, 'value1', 'value2')")
execute_concurrent_with_args(session, insert_statement,
[['k%d' % k] for k in range(keys)])
node1.flush()
node1.compact()
initial_size = data_size(node1, 'ks', 'cf')
#logger.debug("node1 size for ks.cf before bootstrapping node2: %s" % float(initial_size))
node2 = new_node(cluster)
node2.set_configuration_options(
values={'request_timeout_in_ms': 10000})
mark = node2.mark_log()
node1.byteman_submit(['./byteman/migration_request_sleep.btm'])
node2.start(jvm_args=["-Dcassandra.migration_task_wait_in_seconds=20"],
set_migration_task=False,
wait_for_binary_proto=True)
node2.watch_log_for('Prepare completed. Receiving',
from_mark=mark,
timeout=6)
node2.flush()
node2.compact()
#logger.debug("node2 joined with size for ks.cf : %s" % float(data_size(node2, 'ks','cf')))
node1.stop()
rows = session.execute('SELECT count(*) from ks.cf')
assert rows[0][0] == 1000
cluster.stop()
def test_disk_balance_bootstrap(self):
cluster = self.cluster
if self.dtest_config.use_vnodes:
cluster.set_configuration_options(values={'num_tokens': 256})
# apparently we have legitimate errors in the log when bootstrapping (see bootstrap_test.py)
self.fixture_dtest_setup.allow_log_errors = True
cluster.populate(4).start(wait_for_binary_proto=True)
node1 = cluster.nodes['node1']
node1.stress(['write', 'n=50k', 'no-warmup', '-rate', 'threads=100', '-schema', 'replication(factor=3)',
'compaction(strategy=SizeTieredCompactionStrategy,enabled=false)'])
cluster.flush()
node5 = new_node(cluster)
node5.start(wait_for_binary_proto=True)
self.assert_balanced(node5)
def test_simple_bootstrap_nodata(self):
"""
@jira_ticket CASSANDRA-11010
Test that bootstrap completes if streaming from nodes with no data
"""
cluster = self.cluster
# Create a two-node cluster
cluster.populate(2)
cluster.start(wait_other_notice=True)
# Bootstrapping a new node
node3 = new_node(cluster)
node3.start(wait_for_binary_proto=True, wait_other_notice=True)
assert_bootstrap_state(self, node3, 'COMPLETED')
def test_simple_bootstrap_nodata(self):
"""
@jira_ticket CASSANDRA-11010
Test that bootstrap completes if streaming from nodes with no data
"""
cluster = self.cluster
# Create a two-node cluster
cluster.populate(2)
cluster.start(wait_other_notice=True)
# Bootstrapping a new node
node3 = new_node(cluster)
node3.start(wait_for_binary_proto=True, wait_other_notice=True)
assert_bootstrap_state(self, node3, 'COMPLETED')
def test_remove(self):
"""Test a mix of ring change operations across a mix of transient and repaired/unrepaired data"""
node4 = new_node(self.cluster, bootstrap=True, token='00040')
patch_start(node4)
node4.start(wait_for_binary_proto=True, wait_other_notice=True)
main_session = self.patient_cql_connection(self.node1)
nodes = [self.node1, self.node2, self.node3]
#We want the node being removed to have no data on it so nodetool remove always gets all the necessary data
#from survivors
node4_id = node4.nodetool('info').stdout[25:61]
node4.stop(wait_other_notice=True)
for i in range(0, 40):
print("Inserting " + str(i))
self.insert_row(i, i, i, main_session)
sessions = [self.exclusive_cql_connection(node) for node in [self.node1, self.node2, self.node3]]
expected = [gen_expected(range(0, 11), range(21, 40)),
gen_expected(range(0, 21), range(31, 40)),
gen_expected(range(11, 31))]
# Every node should some of its fully replicated data and one and two should have some transient data
self.check_expected(sessions, expected)
nodes[0].nodetool('removenode ' + node4_id)
#Give streaming time to occur, it's asynchronous from removenode completing at other ndoes
import time
time.sleep(15)
# Everyone should have everything except
expected = [gen_expected(range(0, 40)),
gen_expected(range(0, 40)),
gen_expected(range(0,40))]
self.check_replication(sessions, exactly=3)
self.check_expected(sessions, expected)
repair_nodes(nodes)
cleanup_nodes(nodes)
self.check_replication(sessions, exactly=2)
expected = [gen_expected(range(0,11), range(21,40)),
gen_expected(range(0,21), range(31, 40)),
gen_expected(range(11,31))]
self.check_expected(sessions, expected)
def test_simple_bootstrap_nodata(self):
"""
@jira_ticket CASSANDRA-11010
Test that bootstrap completes if streaming from nodes with no data
"""
cluster = self.cluster
cluster.set_environment_variable('CASSANDRA_TOKEN_PREGENERATION_DISABLED', 'True')
# Create a two-node cluster
cluster.populate(2)
cluster.start()
# Bootstrapping a new node
node3 = new_node(cluster)
node3.start(wait_for_binary_proto=True)
assert_bootstrap_state(self, node3, 'COMPLETED')
def simple_bootstrap_test_small_keepalive_period(self):
"""
@jira_ticket CASSANDRA-11841
Test that bootstrap completes if it takes longer than streaming_socket_timeout_in_ms or
2*streaming_keep_alive_period_in_secs to receive a single sstable
"""
cluster = self.cluster
cluster.set_configuration_options(
values={
'stream_throughput_outbound_megabits_per_sec': 1,
'streaming_socket_timeout_in_ms': 1000,
'streaming_keep_alive_period_in_secs': 1
})
# Create a single node cluster
cluster.populate(1)
node1 = cluster.nodelist()[0]
cluster.start(wait_other_notice=True)
# Create more than one sstable larger than 1MB
node1.stress([
'write', 'n=50K', '-rate', 'threads=8', '-schema',
'compaction(strategy=SizeTieredCompactionStrategy, enabled=false)'
])
cluster.flush()
node1.stress([
'write', 'n=50K', '-rate', 'threads=8', '-schema',
'compaction(strategy=SizeTieredCompactionStrategy, enabled=false)'
])
cluster.flush()
self.assertGreater(node1.get_sstables("keyspace1", "standard1"), 1)
# Bootstraping a new node with very small streaming_socket_timeout_in_ms
node2 = new_node(cluster)
node2.start(wait_for_binary_proto=True)
# Shouldn't fail due to streaming socket timeout timeout
assert_bootstrap_state(self, node2, 'COMPLETED')
for node in cluster.nodelist():
self.assertTrue(
node.grep_log('Scheduling keep-alive task with 1s period.',
filename='debug.log'))
self.assertTrue(
node.grep_log('Sending keep-alive', filename='debug.log'))
self.assertTrue(
node.grep_log('Received keep-alive', filename='debug.log'))
def resumable_bootstrap_test(self):
"""
Test resuming bootstrap after data streaming failure
"""
cluster = self.cluster
cluster.populate(2)
node1 = cluster.nodes['node1']
# set up byteman
node1.byteman_port = '8100'
node1.import_config_files()
cluster.start(wait_other_notice=True)
# kill stream to node3 in the middle of streaming to let it fail
if cluster.version() < '4.0':
node1.byteman_submit(['./byteman/pre4.0/stream_failure.btm'])
else:
node1.byteman_submit(['./byteman/4.0/stream_failure.btm'])
node1.stress(['write', 'n=1K', 'no-warmup', 'cl=TWO', '-schema', 'replication(factor=2)', '-rate', 'threads=50'])
cluster.flush()
# start bootstrapping node3 and wait for streaming
node3 = new_node(cluster)
node3.start(wait_other_notice=False, wait_for_binary_proto=True)
# wait for node3 ready to query
node3.watch_log_for("Starting listening for CQL clients")
mark = node3.mark_log()
# check if node3 is still in bootstrap mode
assert_bootstrap_state(self, node3, 'IN_PROGRESS')
# bring back node1 and invoke nodetool bootstrap to resume bootstrapping
node3.nodetool('bootstrap resume')
node3.watch_log_for("Resume complete", from_mark=mark)
assert_bootstrap_state(self, node3, 'COMPLETED')
# cleanup to guarantee each node will only have sstables of its ranges
cluster.cleanup()
debug("Check data is present")
# Let's check stream bootstrap completely transferred data
stdout, stderr, _ = node3.stress(['read', 'n=1k', 'no-warmup', '-schema', 'replication(factor=2)', '-rate', 'threads=8'])
if stdout is not None:
self.assertNotIn("FAILURE", stdout)
def test_consistent_reads_after_bootstrap(self):
logger.debug("Creating a ring")
cluster = self.cluster
cluster.set_configuration_options(values={'hinted_handoff_enabled': False,
'write_request_timeout_in_ms': 60000,
'read_request_timeout_in_ms': 60000,
'dynamic_snitch_badness_threshold': 0.0})
cluster.set_batch_commitlog(enabled=True)
cluster.populate(2)
node1, node2 = cluster.nodelist()
cluster.start(wait_for_binary_proto=True, wait_other_notice=True)
logger.debug("Set to talk to node 2")
n2session = self.patient_cql_connection(node2)
create_ks(n2session, 'ks', 2)
create_c1c2_table(self, n2session)
logger.debug("Generating some data for all nodes")
insert_c1c2(n2session, keys=list(range(10, 20)), consistency=ConsistencyLevel.ALL)
node1.flush()
logger.debug("Taking down node1")
node1.stop(wait_other_notice=True)
logger.debug("Writing data to only node2")
insert_c1c2(n2session, keys=list(range(30, 1000)), consistency=ConsistencyLevel.ONE)
node2.flush()
logger.debug("Restart node1")
node1.start(wait_other_notice=True)
logger.debug("Bootstraping node3")
node3 = new_node(cluster)
node3.start(wait_for_binary_proto=True)
n3session = self.patient_cql_connection(node3)
n3session.execute("USE ks")
logger.debug("Checking that no data was lost")
for n in range(10, 20):
query_c1c2(n3session, n, ConsistencyLevel.ALL)
for n in range(30, 1000):
query_c1c2(n3session, n, ConsistencyLevel.ALL)
def test_decommissioned_wiped_node_can_gossip_to_single_seed(self):
"""
@jira_ticket CASSANDRA-8072
@jira_ticket CASSANDRA-8422
Test that if we decommission a node, kill it and wipe its data, it can join a cluster with a single
seed node.
"""
cluster = self.cluster
cluster.populate(1)
cluster.start(wait_for_binary_proto=True)
node1 = cluster.nodelist()[0]
# Add a new node, bootstrap=True ensures that it is not a seed
node2 = new_node(cluster, bootstrap=True)
node2.start(wait_for_binary_proto=True, wait_other_notice=True)
session = self.patient_cql_connection(node1)
if cluster.version() >= '2.2':
# reduce system_distributed RF to 2 so we don't require forceful decommission
session.execute("ALTER KEYSPACE system_distributed WITH REPLICATION = {'class':'SimpleStrategy', 'replication_factor':'1'};")
session.execute("ALTER KEYSPACE system_traces WITH REPLICATION = {'class':'SimpleStrategy', 'replication_factor':'1'};")
# Decommision the new node and kill it
logger.debug("Decommissioning & stopping node2")
node2.decommission()
node2.stop(wait_other_notice=False)
# Wipe its data
for data_dir in node2.data_directories():
logger.debug("Deleting {}".format(data_dir))
shutil.rmtree(data_dir)
commitlog_dir = os.path.join(node2.get_path(), 'commitlogs')
logger.debug("Deleting {}".format(commitlog_dir))
shutil.rmtree(commitlog_dir)
# Now start it, it should be allowed to join
mark = node2.mark_log()
logger.debug("Restarting wiped node2")
node2.start(wait_other_notice=False)
node2.watch_log_for("JOINING:", from_mark=mark)
def test_simple_bootstrap_small_keepalive_period(self):
"""
@jira_ticket CASSANDRA-11841
Test that bootstrap completes if it takes longer than streaming_socket_timeout_in_ms or
2*streaming_keep_alive_period_in_secs to receive a single sstable
"""
cluster = self.cluster
yaml_opts = {'streaming_keep_alive_period_in_secs': 2}
if cluster.version() < '4.0':
yaml_opts['streaming_socket_timeout_in_ms'] = 1000
cluster.set_configuration_options(values=yaml_opts)
# Create a single node cluster
cluster.populate(1)
node1 = cluster.nodelist()[0]
logger.debug("Setting up byteman on {}".format(node1.name))
# set up byteman
node1.byteman_port = '8100'
node1.import_config_files()
cluster.start(wait_other_notice=True)
# Create more than one sstable larger than 1MB
node1.stress(['write', 'n=1K', '-rate', 'threads=8', '-schema',
'compaction(strategy=SizeTieredCompactionStrategy, enabled=false)'])
cluster.flush()
logger.debug("Submitting byteman script to {} to".format(node1.name))
# Sleep longer than streaming_socket_timeout_in_ms to make sure the node will not be killed
node1.byteman_submit(['./byteman/stream_5s_sleep.btm'])
# Bootstraping a new node with very small streaming_socket_timeout_in_ms
node2 = new_node(cluster)
node2.start(wait_for_binary_proto=True)
# Shouldn't fail due to streaming socket timeout timeout
assert_bootstrap_state(self, node2, 'COMPLETED')
for node in cluster.nodelist():
assert node.grep_log('Scheduling keep-alive task with 2s period.', filename='debug.log')
assert node.grep_log('Sending keep-alive', filename='debug.log')
assert node.grep_log('Received keep-alive', filename='debug.log')
def move_test(self, move_token, expected_after_move, expected_after_repair):
"""Helper method to run a move test cycle"""
node4 = new_node(self.cluster, bootstrap=True, token='00040')
patch_start(node4)
node4.start(wait_for_binary_proto=True, wait_other_notice=True)
main_session = self.patient_cql_connection(self.node1)
nodes = [self.node1, self.node2, self.node3, node4]
for i in range(0, 40, 2):
print("Inserting " + str(i))
self.insert_row(i, i, i, main_session)
# Make sure at least a little data is repaired
repair_nodes(nodes)
# Ensure that there is at least some transient data around, because of this if it's missing after bootstrap
# We know we failed to get it from the transient replica losing the range entirely
nodes[1].stop(wait_other_notice=True)
for i in range(1, 40, 2):
print("Inserting " + str(i))
self.insert_row(i, i, i, main_session)
nodes[1].start(wait_for_binary_proto=True, wait_other_notice=True)
sessions = [self.exclusive_cql_connection(node) for node in [self.node1, self.node2, self.node3, node4]]
expected = [gen_expected(range(0, 11), range(31, 40)),
gen_expected(range(0, 21, 2)),
gen_expected(range(1, 11, 2), range(11, 31)),
gen_expected(range(11, 20, 2), range(21, 40))]
self.check_expected(sessions, expected)
self.check_replication(sessions, exactly=2)
nodes[0].nodetool('move %s' % move_token)
cleanup_nodes(nodes)
self.check_replication(sessions, gte=2, lte=3)
self.check_expected(sessions, expected=expected_after_move)
repair_nodes(nodes)
self.check_expected(sessions, expected_after_repair, nodes, cleanup=True)
self.check_replication(sessions, exactly=2)
def test_resumable_bootstrap(self):
"""
Test resuming bootstrap after data streaming failure
"""
cluster = self.cluster
cluster.populate(2)
node1 = cluster.nodes['node1']
# set up byteman
node1.byteman_port = '8100'
node1.import_config_files()
cluster.start(wait_other_notice=True)
# kill stream to node3 in the middle of streaming to let it fail
if cluster.version() < '4.0':
node1.byteman_submit([self.byteman_submit_path_pre_4_0])
else:
node1.byteman_submit([self.byteman_submit_path_4_0])
node1.stress(['write', 'n=1K', 'no-warmup', 'cl=TWO', '-schema', 'replication(factor=2)', '-rate', 'threads=50'])
cluster.flush()
# start bootstrapping node3 and wait for streaming
node3 = new_node(cluster)
node3.start(wait_other_notice=False)
# let streaming fail as we expect
node3.watch_log_for('Some data streaming failed')
# bring back node3 and invoke nodetool bootstrap to resume bootstrapping
node3.nodetool('bootstrap resume')
node3.wait_for_binary_interface()
assert_bootstrap_state(self, node3, 'COMPLETED')
# cleanup to guarantee each node will only have sstables of its ranges
cluster.cleanup()
logger.debug("Check data is present")
# Let's check stream bootstrap completely transferred data
stdout, stderr, _ = node3.stress(['read', 'n=1k', 'no-warmup', '-schema', 'replication(factor=2)', '-rate', 'threads=8'])
if stdout is not None:
assert "FAILURE" not in stdout
def test_read_from_bootstrapped_node(self):
"""
Test bootstrapped node sees existing data
@jira_ticket CASSANDRA-6648
"""
cluster = self.cluster
cluster.populate(3)
cluster.start()
node1 = cluster.nodes['node1']
node1.stress(['write', 'n=10K', 'no-warmup', '-rate', 'threads=8', '-schema', 'replication(factor=2)'])
session = self.patient_cql_connection(node1)
stress_table = 'keyspace1.standard1'
original_rows = list(session.execute("SELECT * FROM %s" % (stress_table,)))
node4 = new_node(cluster)
node4.start(wait_for_binary_proto=True)
session = self.patient_exclusive_cql_connection(node4)
new_rows = list(session.execute("SELECT * FROM %s" % (stress_table,)))
assert original_rows == new_rows
def test_failed_bootstrap_wiped_node_can_join(self):
"""
@jira_ticket CASSANDRA-9765
Test that if a node fails to bootstrap, it can join the cluster even if the data is wiped.
"""
cluster = self.cluster
cluster.populate(1)
cluster.set_configuration_options(values={'stream_throughput_outbound_megabits_per_sec': 1})
cluster.start(wait_for_binary_proto=True)
stress_table = 'keyspace1.standard1'
# write some data, enough for the bootstrap to fail later on
node1 = cluster.nodelist()[0]
node1.stress(['write', 'n=100K', 'no-warmup', '-rate', 'threads=8'])
node1.flush()
session = self.patient_cql_connection(node1)
original_rows = list(session.execute("SELECT * FROM {}".format(stress_table,)))
# Add a new node, bootstrap=True ensures that it is not a seed
node2 = new_node(cluster, bootstrap=True)
# kill node2 in the middle of bootstrap
t = KillOnBootstrap(node2)
t.start()
node2.start()
t.join()
assert not node2.is_running()
# wipe any data for node2
self._cleanup(node2)
# Now start it again, it should be allowed to join
mark = node2.mark_log()
node2.start(wait_other_notice=True)
node2.watch_log_for("JOINING:", from_mark=mark)
def simple_bootstrap_test_small_keepalive_period(self):
"""
@jira_ticket CASSANDRA-11841
Test that bootstrap completes if it takes longer than streaming_socket_timeout_in_ms or
2*streaming_keep_alive_period_in_secs to receive a single sstable
"""
cluster = self.cluster
cluster.set_configuration_options(values={'stream_throughput_outbound_megabits_per_sec': 1,
'streaming_socket_timeout_in_ms': 1000,
'streaming_keep_alive_period_in_secs': 1})
# Create a single node cluster
cluster.populate(1)
node1 = cluster.nodelist()[0]
cluster.start(wait_other_notice=True)
# Create more than one sstable larger than 1MB
node1.stress(['write', 'n=50K', '-rate', 'threads=8', '-schema',
'compaction(strategy=SizeTieredCompactionStrategy, enabled=false)'])
cluster.flush()
node1.stress(['write', 'n=50K', '-rate', 'threads=8', '-schema',
'compaction(strategy=SizeTieredCompactionStrategy, enabled=false)'])
cluster.flush()
self.assertGreater(node1.get_sstables("keyspace1", "standard1"), 1)
# Bootstraping a new node with very small streaming_socket_timeout_in_ms
node2 = new_node(cluster)
node2.start(wait_for_binary_proto=True)
# Shouldn't fail due to streaming socket timeout timeout
assert_bootstrap_state(self, node2, 'COMPLETED')
for node in cluster.nodelist():
self.assertTrue(node.grep_log('Scheduling keep-alive task with 1s period.', filename='debug.log'))
self.assertTrue(node.grep_log('Sending keep-alive', filename='debug.log'))
self.assertTrue(node.grep_log('Received keep-alive', filename='debug.log'))
def test_bootstrap(self):
""" Test repaired data remains in sync after a bootstrap """
self.fixture_dtest_setup.setup_overrides.cluster_options = ImmutableMapping({'hinted_handoff_enabled': 'false',
'commitlog_sync_period_in_ms': 500})
self.init_default_config()
self.cluster.populate(3).start()
node1, node2, node3 = self.cluster.nodelist()
session = self.patient_exclusive_cql_connection(node3)
session.execute("CREATE KEYSPACE ks WITH REPLICATION={'class':'SimpleStrategy', 'replication_factor': 2}")
session.execute("CREATE TABLE ks.tbl (k INT PRIMARY KEY, v INT)")
# insert some data
stmt = SimpleStatement("INSERT INTO ks.tbl (k,v) VALUES (%s, %s)")
for i in range(1000):
session.execute(stmt, (i, i))
node1.repair(options=['ks'])
for i in range(1000):
v = i + 1000
session.execute(stmt, (v, v))
# everything should be in sync
for node in [node1, node2, node3]:
result = node.repair(options=['ks', '--validate'])
assert "Repaired data is in sync" in result.stdout
node4 = new_node(self.cluster)
node4.start(wait_for_binary_proto=True)
assert len(self.cluster.nodelist()) == 4
# everything should still be in sync
for node in self.cluster.nodelist():
result = node.repair(options=['ks', '--validate'])
assert "Repaired data is in sync" in result.stdout
def default_bootstrap(cluster, token):
node2 = new_node(cluster)
node2.set_configuration_options(values={'initial_token': token})
node2.start(wait_for_binary_proto=True)
return node2
