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https://github.com/ClickHouse/ClickHouse.git
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121 lines
4.0 KiB
Python
121 lines
4.0 KiB
Python
#!/usr/bin/env python3
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##!/usr/bin/env python3
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import pytest
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from helpers.cluster import ClickHouseCluster
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from multiprocessing.dummy import Pool
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from kazoo.client import KazooClient, KazooState
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import random
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import string
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import os
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import time
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cluster = ClickHouseCluster(__file__)
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node1 = cluster.add_instance('node1', main_configs=['configs/keeper_config1.xml'], stay_alive=True)
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node2 = cluster.add_instance('node2', main_configs=['configs/keeper_config2.xml'], stay_alive=True)
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node3 = cluster.add_instance('node3', main_configs=['configs/keeper_config3.xml'], stay_alive=True)
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def start_zookeeper(node):
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node1.exec_in_container(['bash', '-c', '/opt/zookeeper/bin/zkServer.sh start'])
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def stop_zookeeper(node):
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node.exec_in_container(['bash', '-c', '/opt/zookeeper/bin/zkServer.sh stop'])
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def clear_zookeeper(node):
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node.exec_in_container(['bash', '-c', 'rm -fr /zookeeper/*'])
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def restart_and_clear_zookeeper(node):
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stop_zookeeper(node)
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clear_zookeeper(node)
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start_zookeeper(node)
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def clear_clickhouse_data(node):
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node.exec_in_container(['bash', '-c', 'rm -fr /var/lib/clickhouse/coordination/logs/* /var/lib/clickhouse/coordination/snapshots/*'])
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def convert_zookeeper_data(node):
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cmd = '/usr/bin/clickhouse keeper-converter --zookeeper-logs-dir /zookeeper/version-2/ --zookeeper-snapshots-dir /zookeeper/version-2/ --output-dir /var/lib/clickhouse/coordination/snapshots'
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node.exec_in_container(['bash', '-c', cmd])
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return os.path.join('/var/lib/clickhouse/coordination/snapshots', node.exec_in_container(['bash', '-c', 'ls /var/lib/clickhouse/coordination/snapshots']).strip())
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def stop_clickhouse(node):
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node.stop_clickhouse()
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def start_clickhouse(node):
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node.start_clickhouse()
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def copy_zookeeper_data(make_zk_snapshots, node):
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stop_zookeeper(node)
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if make_zk_snapshots: # force zookeeper to create snapshot
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start_zookeeper(node)
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stop_zookeeper(node)
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stop_clickhouse(node)
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clear_clickhouse_data(node)
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convert_zookeeper_data(node)
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start_zookeeper(node)
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start_clickhouse(node)
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@pytest.fixture(scope="module")
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def started_cluster():
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try:
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cluster.start()
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yield cluster
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finally:
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cluster.shutdown()
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def get_fake_zk(node, timeout=30.0):
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_fake_zk_instance = KazooClient(hosts=cluster.get_instance_ip(node.name) + ":9181", timeout=timeout)
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_fake_zk_instance.start()
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return _fake_zk_instance
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def get_genuine_zk(node, timeout=30.0):
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_genuine_zk_instance = KazooClient(hosts=cluster.get_instance_ip(node.name) + ":2181", timeout=timeout)
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_genuine_zk_instance.start()
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return _genuine_zk_instance
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def test_snapshot_and_load(started_cluster):
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restart_and_clear_zookeeper(node1)
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genuine_connection = get_genuine_zk(node1)
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for node in [node1, node2, node3]:
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print("Stop and clear", node.name, "with dockerid", node.docker_id)
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stop_clickhouse(node)
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clear_clickhouse_data(node)
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for i in range(1000):
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genuine_connection.create("/test" + str(i), b"data")
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print("Data loaded to zookeeper")
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stop_zookeeper(node1)
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start_zookeeper(node1)
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stop_zookeeper(node1)
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print("Data copied to node1")
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resulted_path = convert_zookeeper_data(node1)
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print("Resulted path", resulted_path)
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for node in [node2, node3]:
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print("Copy snapshot from", node1.name, "to", node.name)
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cluster.copy_file_from_container_to_container(node1, resulted_path, node, '/var/lib/clickhouse/coordination/snapshots')
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print("Starting clickhouses")
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p = Pool(3)
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result = p.map_async(start_clickhouse, [node1, node2, node3])
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result.wait()
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print("Loading additional data")
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fake_zks = [get_fake_zk(node) for node in [node1, node2, node3]]
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for i in range(1000):
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fake_zk = random.choice(fake_zks)
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try:
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fake_zk.create("/test" + str(i + 1000), b"data")
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except Exception as ex:
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print("Got exception:" + str(ex))
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print("Final")
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fake_zks[0].create("/test10000", b"data")
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