mirror of
https://github.com/ClickHouse/ClickHouse.git
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133 lines
3.8 KiB
Python
133 lines
3.8 KiB
Python
#!/usr/bin/env python3
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import os
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import random
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import string
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import time
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from multiprocessing.dummy import Pool
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import pytest
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from kazoo.client import KazooClient, KazooState
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import helpers.keeper_utils as keeper_utils
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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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cluster = ClickHouseCluster(__file__)
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CONFIG_DIR = os.path.join(os.path.dirname(os.path.realpath(__file__)), "configs")
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node1 = cluster.add_instance(
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"node1", main_configs=["configs/enable_keeper1.xml"], stay_alive=True
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)
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node2 = cluster.add_instance("node2", main_configs=[], stay_alive=True)
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node3 = cluster.add_instance("node3", main_configs=[], stay_alive=True)
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def get_fake_zk(node, timeout=30.0):
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_fake_zk_instance = KazooClient(
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hosts=cluster.get_instance_ip(node.name) + ":9181", timeout=timeout
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)
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_fake_zk_instance.start()
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return _fake_zk_instance
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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 start(node):
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node.start_clickhouse()
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keeper_utils.wait_until_connected(cluster, node)
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def test_nodes_add(started_cluster):
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zk_conn = None
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zk_conn2 = None
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zk_conn3 = None
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try:
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keeper_utils.wait_until_connected(cluster, node1)
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zk_conn = get_fake_zk(node1)
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for i in range(100):
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zk_conn.create("/test_two_" + str(i), b"somedata")
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p = Pool(3)
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node2.stop_clickhouse()
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node2.copy_file_to_container(
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os.path.join(CONFIG_DIR, "enable_keeper_two_nodes_2.xml"),
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"/etc/clickhouse-server/config.d/enable_keeper2.xml",
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)
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waiter = p.apply_async(start, (node2,))
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node1.copy_file_to_container(
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os.path.join(CONFIG_DIR, "enable_keeper_two_nodes_1.xml"),
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"/etc/clickhouse-server/config.d/enable_keeper1.xml",
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)
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node1.query("SYSTEM RELOAD CONFIG")
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waiter.wait()
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keeper_utils.wait_until_connected(cluster, node2)
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zk_conn2 = get_fake_zk(node2)
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for i in range(100):
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assert zk_conn2.exists("/test_two_" + str(i)) is not None
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zk_conn.stop()
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zk_conn.close()
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zk_conn = get_fake_zk(node1)
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for i in range(100):
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zk_conn.create("/test_three_" + str(i), b"somedata")
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node3.stop_clickhouse()
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node3.copy_file_to_container(
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os.path.join(CONFIG_DIR, "enable_keeper_three_nodes_3.xml"),
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"/etc/clickhouse-server/config.d/enable_keeper3.xml",
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)
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waiter = p.apply_async(start, (node3,))
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node2.copy_file_to_container(
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os.path.join(CONFIG_DIR, "enable_keeper_three_nodes_2.xml"),
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"/etc/clickhouse-server/config.d/enable_keeper2.xml",
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)
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node1.copy_file_to_container(
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os.path.join(CONFIG_DIR, "enable_keeper_three_nodes_1.xml"),
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"/etc/clickhouse-server/config.d/enable_keeper1.xml",
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)
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node1.query("SYSTEM RELOAD CONFIG")
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node2.query("SYSTEM RELOAD CONFIG")
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waiter.wait()
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keeper_utils.wait_until_connected(cluster, node3)
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zk_conn3 = get_fake_zk(node3)
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for i in range(100):
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assert zk_conn3.exists("/test_three_" + str(i)) is not None
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# configs which change endpoints of server should not be allowed
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node1.replace_in_config(
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"/etc/clickhouse-server/config.d/enable_keeper1.xml",
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"node3",
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"non_existing_node",
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)
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node1.query("SYSTEM RELOAD CONFIG")
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time.sleep(2)
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assert node1.contains_in_log(
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"Config will be ignored because a server with ID 3 is already present in the cluster"
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)
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finally:
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for zk in [zk_conn, zk_conn2, zk_conn3]:
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if zk:
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zk.stop()
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zk.close()
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