ClickHouse/tests/integration/test_read_only_table/test.py
2023-03-24 11:54:38 +01:00

91 lines
2.4 KiB
Python

import time
import re
import logging
import pytest
from helpers.cluster import ClickHouseCluster
from helpers.test_tools import assert_eq_with_retry
NUM_TABLES = 10
def fill_nodes(nodes):
for table_id in range(NUM_TABLES):
for node in nodes:
node.query(
f"""
CREATE TABLE test_table_{table_id}(a UInt64)
ENGINE = ReplicatedMergeTree('/clickhouse/tables/test/replicated/{table_id}', '{node.name}') ORDER BY tuple();
"""
)
cluster = ClickHouseCluster(__file__)
node1 = cluster.add_instance("node1", with_zookeeper=True)
node2 = cluster.add_instance("node2", with_zookeeper=True)
node3 = cluster.add_instance("node3", with_zookeeper=True)
nodes = [node1, node2, node3]
def sync_replicas(table):
for node in nodes:
node.query(f"SYSTEM SYNC REPLICA {table}")
@pytest.fixture(scope="module")
def start_cluster():
try:
cluster.start()
fill_nodes(nodes)
yield cluster
except Exception as ex:
print(ex)
finally:
cluster.shutdown()
def test_restart_zookeeper(start_cluster):
for table_id in range(NUM_TABLES):
node1.query(
f"INSERT INTO test_table_{table_id} VALUES (1), (2), (3), (4), (5);"
)
logging.info("Inserted test data and initialized all tables")
def get_zookeeper_which_node_connected_to(node):
line = str(
node.exec_in_container(
[
"bash",
"-c",
"lsof -a -i4 -i6 -itcp -w | grep 2181 | grep ESTABLISHED",
],
privileged=True,
user="root",
)
).strip()
pattern = re.compile(r"zoo[0-9]+", re.IGNORECASE)
result = pattern.findall(line)
assert (
len(result) == 1
), "ClickHouse must be connected only to one Zookeeper at a time"
return result[0]
node1_zk = get_zookeeper_which_node_connected_to(node1)
# ClickHouse should +- immediately reconnect to another zookeeper node
cluster.stop_zookeeper_nodes([node1_zk])
time.sleep(5)
for table_id in range(NUM_TABLES):
node1.query_with_retry(
sql=f"INSERT INTO test_table_{table_id} VALUES (6), (7), (8), (9), (10);",
retry_count=10,
sleep_time=1,
)