mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-17 21:24:28 +00:00
131 lines
3.5 KiB
Python
131 lines
3.5 KiB
Python
#!/usr/bin/env python3
|
|
|
|
import pytest
|
|
from helpers.cluster import ClickHouseCluster, ClickHouseInstance
|
|
import helpers.keeper_utils as ku
|
|
import os
|
|
import typing as tp
|
|
|
|
|
|
cluster = ClickHouseCluster(__file__)
|
|
CONFIG_DIR = os.path.join(os.path.dirname(os.path.realpath(__file__)), "configs")
|
|
|
|
nodes = [
|
|
cluster.add_instance(f"node{i}", main_configs=[f"configs/keeper{i}.xml"])
|
|
for i in range(1, 6)
|
|
]
|
|
node1, node2, node3, node4, node5 = nodes
|
|
|
|
log_msg_removed = "has been removed from the cluster"
|
|
zk1, zk2, zk3, zk4, zk5 = None, None, None, None, None
|
|
|
|
|
|
@pytest.fixture(scope="module")
|
|
def started_cluster():
|
|
try:
|
|
cluster.start()
|
|
yield cluster
|
|
finally:
|
|
conn: tp.Optional[ku.KeeperClient]
|
|
for conn in [zk1, zk2, zk3, zk4, zk5]:
|
|
if conn:
|
|
conn.stop()
|
|
|
|
cluster.shutdown()
|
|
|
|
|
|
def create_client(node: ClickHouseInstance):
|
|
return ku.KeeperClient(
|
|
cluster.server_bin_path, cluster.get_instance_ip(node.name), 9181
|
|
)
|
|
|
|
|
|
def test_reconfig_remove_2_and_leader(started_cluster):
|
|
"""
|
|
Remove 2 followers from a cluster of 5. Remove leader from 3 nodes.
|
|
"""
|
|
global zk1, zk2, zk3, zk4, zk5
|
|
|
|
zk1 = create_client(node1)
|
|
config = ku.get_config_str(zk1)
|
|
print("Initial config", config)
|
|
|
|
assert len(config.split("\n")) == 5
|
|
|
|
for i in range(100):
|
|
zk1.create(f"/test_two_{i}", "somedata")
|
|
|
|
zk4 = create_client(node4)
|
|
zk4.sync("/test_two_0")
|
|
ku.wait_configs_equal(config, zk4)
|
|
|
|
zk5 = create_client(node5)
|
|
zk5.sync("/test_two_0")
|
|
ku.wait_configs_equal(config, zk5)
|
|
|
|
for i in range(100):
|
|
assert zk4.exists(f"test_two_{i}")
|
|
assert zk5.exists(f"test_two_{i}")
|
|
|
|
zk4.create(f"/test_two_{100 + i}", "otherdata")
|
|
|
|
zk2 = create_client(node2)
|
|
config = zk2.reconfig(joining=None, leaving="4,5", new_members=None)
|
|
|
|
print("After removing 4,5", config)
|
|
assert len(config.split("\n")) == 3
|
|
assert "node1" in config
|
|
assert "node2" in config
|
|
assert "node3" in config
|
|
assert "node4" not in config
|
|
assert "node5" not in config
|
|
|
|
zk1.stop()
|
|
zk1 = create_client(node1)
|
|
zk1.sync("/test_two_0")
|
|
|
|
ku.wait_configs_equal(config, zk1)
|
|
|
|
for i in range(200):
|
|
assert zk1.exists(f"test_two_{i}")
|
|
assert zk2.exists(f"test_two_{i}")
|
|
|
|
assert not node1.contains_in_log(log_msg_removed)
|
|
assert not node2.contains_in_log(log_msg_removed)
|
|
assert not node3.contains_in_log(log_msg_removed)
|
|
assert node4.contains_in_log(log_msg_removed)
|
|
assert node5.contains_in_log(log_msg_removed)
|
|
|
|
assert ku.is_leader(cluster, node1)
|
|
|
|
for i in range(100):
|
|
zk1.create(f"/test_leader_{i}", "somedata")
|
|
|
|
# when a leader gets a remove request, it must yield leadership
|
|
config = zk1.reconfig(joining=None, leaving="1", new_members=None)
|
|
print("After removing 1 (leader)", config)
|
|
|
|
assert len(config.split("\n")) == 2
|
|
assert "node1" not in config
|
|
assert "node2" in config
|
|
assert "node3" in config
|
|
assert "node4" not in config
|
|
assert "node5" not in config
|
|
|
|
zk2.stop()
|
|
zk2 = create_client(node2)
|
|
zk2.sync("/test_leader_0")
|
|
ku.wait_configs_equal(config, zk2)
|
|
|
|
zk3 = create_client(node3)
|
|
zk3.sync("/test_leader_0")
|
|
ku.wait_configs_equal(config, zk3)
|
|
|
|
for i in range(100):
|
|
assert zk2.exists(f"test_leader_{i}")
|
|
assert zk3.exists(f"test_leader_{i}")
|
|
|
|
assert node1.contains_in_log(log_msg_removed)
|
|
assert not node2.contains_in_log(log_msg_removed)
|
|
assert not node3.contains_in_log(log_msg_removed)
|