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https://github.com/ClickHouse/ClickHouse.git
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150 lines
4.1 KiB
Python
150 lines
4.1 KiB
Python
#!/usr/bin/env python3
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import os
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import typing as tp
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import pytest
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import helpers.keeper_utils as ku
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from helpers.cluster import ClickHouseCluster, ClickHouseInstance
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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("node1", main_configs=["configs/keeper1.xml"])
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node2 = cluster.add_instance("node2", stay_alive=True)
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node3 = cluster.add_instance("node3", stay_alive=True)
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server_join_msg = "confirms it will join"
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part_of_cluster = "now this node is the part of cluster"
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zk1, zk2, zk3 = None, None, None
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@pytest.fixture(scope="module", autouse=True)
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def started_cluster():
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try:
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cluster.start()
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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, "keeper2.xml"),
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"/etc/clickhouse-server/config.d/keeper.xml",
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)
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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, "keeper3.xml"),
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"/etc/clickhouse-server/config.d/keeper.xml",
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)
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yield cluster
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finally:
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conn: tp.Optional[ku.KeeperClient]
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for conn in [zk1, zk2, zk3]:
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if conn is not None:
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conn.stop()
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cluster.shutdown()
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def create_client(node: ClickHouseInstance):
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return ku.KeeperClient(
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cluster.server_bin_path, cluster.get_instance_ip(node.name), 9181
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)
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def test_reconfig_add():
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"""
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Add a node to another node. Then add another node to two.
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"""
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global zk1, zk2, zk3
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zk1 = create_client(node1)
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config = zk1.get("/keeper/config")
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print("Initial config", config)
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assert len(config.split("\n")) == 1
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assert "node1" in config
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assert "node2" not in config
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assert "node3" not in config
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with pytest.raises(ku.KeeperException):
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# duplicate id with different endpoint
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zk1.reconfig(joining="server.1=localhost:1337", leaving=None, new_members=None)
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with pytest.raises(ku.KeeperException):
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# duplicate endpoint
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zk1.reconfig(joining="server.8=node1:9234", leaving=None, new_members=None)
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for i in range(100):
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zk1.create(f"/test_three_{i}", "somedata")
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node2.start_clickhouse()
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config = zk1.reconfig(joining="server.2=node2:9234", leaving=None, new_members=None)
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ku.wait_until_connected(cluster, node2)
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print("After adding 2", config)
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assert len(config.split("\n")) == 2
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assert "node1" in config
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assert "node2" in config
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assert "node3" not in config
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zk2 = create_client(node2)
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ku.wait_configs_equal(config, zk2)
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for i in range(100):
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assert zk2.exists(f"/test_three_{i}")
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zk2.create(f"/test_three_{100 + i}", "somedata")
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# Why not both?
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# One node will process add_srv request, other will pull out updated config, apply
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# and return true in config update thread (without calling add_srv again)
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assert node1.contains_in_log(server_join_msg) or node2.contains_in_log(
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server_join_msg
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)
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assert node2.contains_in_log(part_of_cluster)
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zk1.stop()
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zk1 = create_client(node1)
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zk1.sync("/test_three_0")
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for i in range(200):
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assert zk1.exists(f"/test_three_{i}")
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for i in range(100):
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zk2.create(f"/test_four_{i}", "somedata")
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node3.start_clickhouse()
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config = zk2.reconfig(joining="server.3=node3:9234", leaving=None, new_members=None)
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ku.wait_until_connected(cluster, node3)
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print("After adding 3", config)
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assert len(config.split("\n")) == 3
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assert "node1" in config
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assert "node2" in config
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assert "node3" in config
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zk3 = create_client(node3)
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ku.wait_configs_equal(config, zk3)
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for i in range(100):
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assert zk3.exists(f"/test_four_{i}")
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zk3.create(f"/test_four_{100 + i}", "somedata")
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zk1.stop()
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zk1 = create_client(node1)
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zk1.sync("/test_four_0")
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zk2.stop()
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zk2 = create_client(node2)
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zk2.sync("/test_four_0")
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for i in range(200):
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assert zk1.exists(f"/test_four_{i}")
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assert zk2.exists(f"/test_four_{i}")
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assert node3.contains_in_log(part_of_cluster)
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