ClickHouse/tests/integration/test_keeper_nodes_move/test.py
2022-03-22 17:39:58 +01:00

104 lines
2.7 KiB
Python

#!/usr/bin/env python3
#!/usr/bin/env python3
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
from helpers.test_tools import assert_eq_with_retry
from kazoo.client import KazooClient, KazooState
cluster = ClickHouseCluster(__file__)
CONFIG_DIR = os.path.join(os.path.dirname(os.path.realpath(__file__)), "configs")
node1 = cluster.add_instance(
"node1", main_configs=["configs/enable_keeper1.xml"], stay_alive=True
)
node2 = cluster.add_instance(
"node2", main_configs=["configs/enable_keeper2.xml"], stay_alive=True
)
node3 = cluster.add_instance(
"node3", main_configs=["configs/enable_keeper3.xml"], stay_alive=True
)
node4 = cluster.add_instance("node4", stay_alive=True)
@pytest.fixture(scope="module")
def started_cluster():
try:
cluster.start()
yield cluster
finally:
cluster.shutdown()
def start(node):
node.start_clickhouse()
def get_fake_zk(node, timeout=30.0):
_fake_zk_instance = KazooClient(
hosts=cluster.get_instance_ip(node.name) + ":9181", timeout=timeout
)
_fake_zk_instance.start()
return _fake_zk_instance
def test_node_move(started_cluster):
zk_conn = get_fake_zk(node1)
for i in range(100):
zk_conn.create("/test_four_" + str(i), b"somedata")
zk_conn2 = get_fake_zk(node2)
zk_conn2.sync("/test_four_0")
zk_conn3 = get_fake_zk(node3)
zk_conn3.sync("/test_four_0")
for i in range(100):
assert zk_conn2.exists("test_four_" + str(i)) is not None
assert zk_conn3.exists("test_four_" + str(i)) is not None
node4.stop_clickhouse()
node4.copy_file_to_container(
os.path.join(CONFIG_DIR, "enable_keeper_node4_4.xml"),
"/etc/clickhouse-server/config.d/enable_keeper4.xml",
)
p = Pool(3)
waiter = p.apply_async(start, (node4,))
node1.copy_file_to_container(
os.path.join(CONFIG_DIR, "enable_keeper_node4_1.xml"),
"/etc/clickhouse-server/config.d/enable_keeper1.xml",
)
node2.copy_file_to_container(
os.path.join(CONFIG_DIR, "enable_keeper_node4_2.xml"),
"/etc/clickhouse-server/config.d/enable_keeper2.xml",
)
node1.query("SYSTEM RELOAD CONFIG")
node2.query("SYSTEM RELOAD CONFIG")
waiter.wait()
zk_conn4 = get_fake_zk(node4)
zk_conn4.sync("/test_four_0")
for i in range(100):
assert zk_conn4.exists("/test_four_" + str(i)) is not None
with pytest.raises(Exception):
# Adding and removing nodes is async operation
for i in range(10):
zk_conn3 = get_fake_zk(node3)
zk_conn3.sync("/test_four_0")
time.sleep(i)