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https://github.com/ClickHouse/ClickHouse.git
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130 lines
3.5 KiB
Python
130 lines
3.5 KiB
Python
import pytest
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from helpers.cluster import ClickHouseCluster
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import helpers.keeper_utils as keeper_utils
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import time
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cluster = ClickHouseCluster(__file__)
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node1 = cluster.add_instance(
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"node1",
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main_configs=["configs/enable_keeper1.xml"],
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stay_alive=True,
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)
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node2 = cluster.add_instance(
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"node2",
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main_configs=["configs/enable_keeper2.xml"],
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stay_alive=True,
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)
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node3 = cluster.add_instance(
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"node3",
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main_configs=["configs/enable_keeper3.xml"],
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stay_alive=True,
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)
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from kazoo.client import KazooClient, KazooState
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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 smaller_exception(ex):
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return "\n".join(str(ex).split("\n")[0:2])
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def wait_nodes():
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keeper_utils.wait_nodes(cluster, [node1, node2, node3])
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def get_fake_zk(nodename, timeout=30.0):
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_fake_zk_instance = KazooClient(
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hosts=cluster.get_instance_ip(nodename) + ":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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def test_single_node_broken_log(started_cluster):
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try:
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wait_nodes()
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node1_conn = get_fake_zk("node1")
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# Cleanup
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if node1_conn.exists("/test_broken_log") != None:
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node1_conn.delete("/test_broken_log")
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node1_conn.create("/test_broken_log")
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for _ in range(10):
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node1_conn.create(f"/test_broken_log/node", b"somedata1", sequence=True)
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def verify_nodes(zk_conn):
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children = zk_conn.get_children("/test_broken_log")
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assert len(children) == 10
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for child in children:
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assert zk_conn.get("/test_broken_log/" + child)[0] == b"somedata1"
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verify_nodes(node1_conn)
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node1_conn.stop()
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node1_conn.close()
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node1.stop_clickhouse()
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# wait until cluster stabilizes with a new leader
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while not keeper_utils.is_leader(
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started_cluster, node2
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) and not keeper_utils.is_leader(started_cluster, node3):
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time.sleep(1)
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node1.exec_in_container(
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[
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"truncate",
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"-s",
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"-50",
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"/var/lib/clickhouse/coordination/log/changelog_1_100000.bin",
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]
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)
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node1.start_clickhouse()
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keeper_utils.wait_until_connected(cluster, node1)
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node1_conn = get_fake_zk("node1")
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node1_conn.create(f"/test_broken_log_final_node", b"somedata1")
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verify_nodes(node1_conn)
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assert node1_conn.get("/test_broken_log_final_node")[0] == b"somedata1"
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node2_conn = get_fake_zk("node2")
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verify_nodes(node2_conn)
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assert node2_conn.get("/test_broken_log_final_node")[0] == b"somedata1"
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node3_conn = get_fake_zk("node2")
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verify_nodes(node3_conn)
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assert node3_conn.get("/test_broken_log_final_node")[0] == b"somedata1"
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assert (
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node1.exec_in_container(["ls", "/var/lib/clickhouse/coordination/log"])
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== "changelog_1_100000.bin\nchangelog_14_100013.bin\n"
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)
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assert (
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node2.exec_in_container(["ls", "/var/lib/clickhouse/coordination/log"])
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== "changelog_1_100000.bin\n"
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)
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assert (
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node3.exec_in_container(["ls", "/var/lib/clickhouse/coordination/log"])
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== "changelog_1_100000.bin\n"
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)
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finally:
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try:
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for zk_conn in [node1_conn, node2_conn, node3_conn]:
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zk_conn.stop()
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zk_conn.close()
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except:
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pass
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