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