ClickHouse/tests/integration/test_testkeeper_multinode_blocade_leader/test.py
2021-02-12 12:17:10 +03:00

322 lines
13 KiB
Python

import pytest
from helpers.cluster import ClickHouseCluster
import random
import string
import os
import time
from multiprocessing.dummy import Pool
from helpers.network import PartitionManager
cluster = ClickHouseCluster(__file__)
node1 = cluster.add_instance('node1', main_configs=['configs/enable_test_keeper1.xml', 'configs/log_conf.xml', 'configs/use_test_keeper.xml'], stay_alive=True)
node2 = cluster.add_instance('node2', main_configs=['configs/enable_test_keeper2.xml', 'configs/log_conf.xml', 'configs/use_test_keeper.xml'], stay_alive=True)
node3 = cluster.add_instance('node3', main_configs=['configs/enable_test_keeper3.xml', 'configs/log_conf.xml', 'configs/use_test_keeper.xml'], stay_alive=True)
from kazoo.client import KazooClient, KazooState
@pytest.fixture(scope="module")
def started_cluster():
try:
cluster.start()
yield cluster
finally:
cluster.shutdown()
def smaller_exception(ex):
return '\n'.join(str(ex).split('\n')[0:2])
def wait_node(node):
for _ in range(100):
zk = None
try:
node.query("SELECT * FROM system.zookeeper WHERE path = '/'")
zk = get_fake_zk(node.name, timeout=30.0)
zk.create("/test", sequence=True)
print("node", node.name, "ready")
break
except Exception as ex:
time.sleep(0.2)
print("Waiting until", node.name, "will be ready, exception", ex)
finally:
if zk:
zk.stop()
zk.close()
else:
raise Exception("Can't wait node", node.name, "to become ready")
def wait_nodes():
for node in [node1, node2, node3]:
wait_node(node)
def get_fake_zk(nodename, timeout=30.0):
_fake_zk_instance = KazooClient(hosts=cluster.get_instance_ip(nodename) + ":9181", timeout=timeout)
def reset_listener(state):
nonlocal _fake_zk_instance
print("Fake zk callback called for state", state)
if state != KazooState.CONNECTED:
_fake_zk_instance._reset()
_fake_zk_instance.add_listener(reset_listener)
_fake_zk_instance.start()
return _fake_zk_instance
# in extremely rare case it can take more than 5 minutes in debug build with sanitizer
@pytest.mark.timeout(600)
def test_blocade_leader(started_cluster):
wait_nodes()
for i, node in enumerate([node1, node2, node3]):
node.query("CREATE DATABASE IF NOT EXISTS ordinary ENGINE=Ordinary")
node.query("CREATE TABLE ordinary.t1 (value UInt64) ENGINE = ReplicatedMergeTree('/clickhouse/t1', '{}') ORDER BY tuple()".format(i + 1))
node2.query("INSERT INTO ordinary.t1 SELECT number FROM numbers(10)")
node1.query("SYSTEM SYNC REPLICA ordinary.t1", timeout=10)
node3.query("SYSTEM SYNC REPLICA ordinary.t1", timeout=10)
assert node1.query("SELECT COUNT() FROM ordinary.t1") == "10\n"
assert node2.query("SELECT COUNT() FROM ordinary.t1") == "10\n"
assert node3.query("SELECT COUNT() FROM ordinary.t1") == "10\n"
with PartitionManager() as pm:
pm.partition_instances(node2, node1)
pm.partition_instances(node3, node1)
for i in range(100):
try:
node2.query("SYSTEM RESTART REPLICA ordinary.t1")
node2.query("INSERT INTO ordinary.t1 SELECT rand() FROM numbers(100)")
break
except Exception as ex:
try:
node2.query("ATTACH TABLE ordinary.t1")
except Exception as attach_ex:
print("Got exception node2", smaller_exception(attach_ex))
print("Got exception node2", smaller_exception(ex))
time.sleep(0.5)
else:
for num, node in enumerate([node1, node2, node3]):
dump_zk(node, '/clickhouse/t1', '/clickhouse/t1/replicas/{}'.format(num + 1))
assert False, "Cannot insert anything node2"
for i in range(100):
try:
node3.query("SYSTEM RESTART REPLICA ordinary.t1")
node3.query("INSERT INTO ordinary.t1 SELECT rand() FROM numbers(100)")
break
except Exception as ex:
try:
node3.query("ATTACH TABLE ordinary.t1")
except Exception as attach_ex:
print("Got exception node3", smaller_exception(attach_ex))
print("Got exception node3", smaller_exception(ex))
time.sleep(0.5)
else:
for num, node in enumerate([node1, node2, node3]):
dump_zk(node, '/clickhouse/t1', '/clickhouse/t1/replicas/{}'.format(num + 1))
assert False, "Cannot insert anything node3"
for n, node in enumerate([node1, node2, node3]):
for i in range(100):
try:
node.query("SYSTEM RESTART REPLICA ordinary.t1")
break
except Exception as ex:
try:
node.query("ATTACH TABLE ordinary.t1")
except Exception as attach_ex:
print("Got exception node{}".format(n + 1), smaller_exception(attach_ex))
print("Got exception node{}".format(n + 1), smaller_exception(ex))
time.sleep(0.5)
else:
assert False, "Cannot reconnect for node{}".format(n + 1)
for i in range(100):
try:
node1.query("INSERT INTO ordinary.t1 SELECT rand() FROM numbers(100)")
break
except Exception as ex:
print("Got exception node1", smaller_exception(ex))
time.sleep(0.5)
else:
for num, node in enumerate([node1, node2, node3]):
dump_zk(node, '/clickhouse/t1', '/clickhouse/t1/replicas/{}'.format(num + 1))
assert False, "Cannot insert anything node1"
for n, node in enumerate([node1, node2, node3]):
for i in range(100):
try:
node.query("SYSTEM RESTART REPLICA ordinary.t1")
node.query("SYSTEM SYNC REPLICA ordinary.t1", timeout=10)
break
except Exception as ex:
try:
node.query("ATTACH TABLE ordinary.t1")
except Exception as attach_ex:
print("Got exception node{}".format(n + 1), smaller_exception(attach_ex))
print("Got exception node{}".format(n + 1), smaller_exception(ex))
time.sleep(0.5)
else:
for num, node in enumerate([node1, node2, node3]):
dump_zk(node, '/clickhouse/t1', '/clickhouse/t1/replicas/{}'.format(num + 1))
assert False, "Cannot sync replica node{}".format(n+1)
if node1.query("SELECT COUNT() FROM ordinary.t1") != "310\n":
for num, node in enumerate([node1, node2, node3]):
dump_zk(node, '/clickhouse/t1', '/clickhouse/t1/replicas/{}'.format(num + 1))
assert node1.query("SELECT COUNT() FROM ordinary.t1") == "310\n"
assert node2.query("SELECT COUNT() FROM ordinary.t1") == "310\n"
assert node3.query("SELECT COUNT() FROM ordinary.t1") == "310\n"
def dump_zk(node, zk_path, replica_path):
print(node.query("SELECT * FROM system.replication_queue FORMAT Vertical"))
print("Replicas")
print(node.query("SELECT * FROM system.replicas FORMAT Vertical"))
print("Replica 2 info")
print(node.query("SELECT * FROM system.zookeeper WHERE path = '{}' FORMAT Vertical".format(zk_path)))
print("Queue")
print(node.query("SELECT * FROM system.zookeeper WHERE path = '{}/queue' FORMAT Vertical".format(replica_path)))
print("Log")
print(node.query("SELECT * FROM system.zookeeper WHERE path = '{}/log' FORMAT Vertical".format(zk_path)))
print("Parts")
print(node.query("SELECT name FROM system.zookeeper WHERE path = '{}/parts' FORMAT Vertical".format(replica_path)))
# in extremely rare case it can take more than 5 minutes in debug build with sanitizer
@pytest.mark.timeout(600)
def test_blocade_leader_twice(started_cluster):
wait_nodes()
for i, node in enumerate([node1, node2, node3]):
node.query("CREATE DATABASE IF NOT EXISTS ordinary ENGINE=Ordinary")
node.query("CREATE TABLE ordinary.t2 (value UInt64) ENGINE = ReplicatedMergeTree('/clickhouse/t2', '{}') ORDER BY tuple()".format(i + 1))
node2.query("INSERT INTO ordinary.t2 SELECT number FROM numbers(10)")
node1.query("SYSTEM SYNC REPLICA ordinary.t2", timeout=10)
node3.query("SYSTEM SYNC REPLICA ordinary.t2", timeout=10)
assert node1.query("SELECT COUNT() FROM ordinary.t2") == "10\n"
assert node2.query("SELECT COUNT() FROM ordinary.t2") == "10\n"
assert node3.query("SELECT COUNT() FROM ordinary.t2") == "10\n"
with PartitionManager() as pm:
pm.partition_instances(node2, node1)
pm.partition_instances(node3, node1)
for i in range(100):
try:
node2.query("SYSTEM RESTART REPLICA ordinary.t2")
node2.query("INSERT INTO ordinary.t2 SELECT rand() FROM numbers(100)")
break
except Exception as ex:
try:
node2.query("ATTACH TABLE ordinary.t2")
except Exception as attach_ex:
print("Got exception node2", smaller_exception(attach_ex))
print("Got exception node2", smaller_exception(ex))
time.sleep(0.5)
else:
for num, node in enumerate([node1, node2, node3]):
dump_zk(node, '/clickhouse/t2', '/clickhouse/t2/replicas/{}'.format(num + 1))
assert False, "Cannot reconnect for node2"
for i in range(100):
try:
node3.query("SYSTEM RESTART REPLICA ordinary.t2")
node3.query("INSERT INTO ordinary.t2 SELECT rand() FROM numbers(100)")
break
except Exception as ex:
try:
node3.query("ATTACH TABLE ordinary.t2")
except Exception as attach_ex:
print("Got exception node3", smaller_exception(attach_ex))
print("Got exception node3", smaller_exception(ex))
time.sleep(0.5)
else:
for num, node in enumerate([node1, node2, node3]):
dump_zk(node, '/clickhouse/t2', '/clickhouse/t2/replicas/{}'.format(num + 1))
assert False, "Cannot reconnect for node3"
# Total network partition
pm.partition_instances(node3, node2)
for i in range(10):
try:
node3.query("INSERT INTO ordinary.t2 SELECT rand() FROM numbers(100)")
assert False, "Node3 became leader?"
except Exception as ex:
time.sleep(0.5)
for i in range(10):
try:
node2.query("INSERT INTO ordinary.t2 SELECT rand() FROM numbers(100)")
assert False, "Node2 became leader?"
except Exception as ex:
time.sleep(0.5)
for n, node in enumerate([node1, node2, node3]):
for i in range(100):
try:
node.query("SYSTEM RESTART REPLICA ordinary.t2")
break
except Exception as ex:
try:
node.query("ATTACH TABLE ordinary.t2")
except Exception as attach_ex:
print("Got exception node{}".format(n + 1), smaller_exception(attach_ex))
print("Got exception node{}".format(n + 1), smaller_exception(ex))
time.sleep(0.5)
else:
for num, node in enumerate([node1, node2, node3]):
dump_zk(node, '/clickhouse/t2', '/clickhouse/t2/replicas/{}'.format(num + 1))
assert False, "Cannot reconnect for node{}".format(n + 1)
for n, node in enumerate([node1, node2, node3]):
for i in range(100):
try:
node.query("INSERT INTO ordinary.t2 SELECT rand() FROM numbers(100)")
break
except Exception as ex:
print("Got exception node{}".format(n + 1), smaller_exception(ex))
time.sleep(0.5)
else:
for num, node in enumerate([node1, node2, node3]):
dump_zk(node, '/clickhouse/t2', '/clickhouse/t2/replicas/{}'.format(num + 1))
assert False, "Cannot reconnect for node{}".format(n + 1)
for n, node in enumerate([node1, node2, node3]):
for i in range(100):
try:
node.query("SYSTEM RESTART REPLICA ordinary.t2")
node.query("SYSTEM SYNC REPLICA ordinary.t2", timeout=10)
break
except Exception as ex:
try:
node.query("ATTACH TABLE ordinary.t2")
except Exception as attach_ex:
print("Got exception node{}".format(n + 1), smaller_exception(attach_ex))
print("Got exception node{}".format(n + 1), smaller_exception(ex))
time.sleep(0.5)
else:
for num, node in enumerate([node1, node2, node3]):
dump_zk(node, '/clickhouse/t2', '/clickhouse/t2/replicas/{}'.format(num + 1))
assert False, "Cannot reconnect for node{}".format(n + 1)
assert node1.query("SELECT COUNT() FROM ordinary.t2") == "510\n"
if node2.query("SELECT COUNT() FROM ordinary.t2") != "510\n":
for num, node in enumerate([node1, node2, node3]):
dump_zk(node, '/clickhouse/t2', '/clickhouse/t2/replicas/{}'.format(num + 1))
assert node2.query("SELECT COUNT() FROM ordinary.t2") == "510\n"
assert node3.query("SELECT COUNT() FROM ordinary.t2") == "510\n"