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120 lines
3.6 KiB
Python
120 lines
3.6 KiB
Python
import time
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import pytest
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from helpers.cluster import ClickHouseCluster
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from helpers.network import PartitionManager
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from helpers.test_tools import assert_eq_with_retry
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cluster = ClickHouseCluster(__file__)
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node1 = cluster.add_instance(
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"node1", main_configs=["configs/remote_servers.xml"], with_zookeeper=True
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)
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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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node1.query(
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"""
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CREATE DATABASE test;
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CREATE TABLE test_table(date Date, id UInt32)
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ENGINE = ReplicatedMergeTree('/clickhouse/tables/test/replicated', 'node1')
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ORDER BY id PARTITION BY toYYYYMM(date) SETTINGS old_parts_lifetime=4, cleanup_delay_period=1, cleanup_thread_preferred_points_per_iteration=0;
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"""
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)
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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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# Test that outdated parts are not removed when they cannot be removed from zookeeper
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def test_merge_doesnt_work_without_zookeeper(start_cluster):
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node1.query(
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"INSERT INTO test_table VALUES ('2018-10-01', 1), ('2018-10-02', 2), ('2018-10-03', 3)"
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)
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node1.query(
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"INSERT INTO test_table VALUES ('2018-10-01', 4), ('2018-10-02', 5), ('2018-10-03', 6)"
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)
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assert (
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node1.query("SELECT count(*) from system.parts where table = 'test_table'")
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== "2\n"
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)
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node1.query("OPTIMIZE TABLE test_table FINAL")
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assert (
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node1.query("SELECT count(*) from system.parts where table = 'test_table'")
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== "3\n"
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)
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assert_eq_with_retry(
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node1,
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"SELECT count(*) from system.parts where table = 'test_table' and active = 1",
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"1",
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)
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node1.query("TRUNCATE TABLE test_table")
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total_parts = node1.query(
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"SELECT count(*) from system.parts where table = 'test_table'"
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)
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assert total_parts == "0\n" or total_parts == "1\n"
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assert (
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node1.query(
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"SELECT count(*) from system.parts where table = 'test_table' and active = 1"
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)
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== "0\n"
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)
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node1.query("DETACH TABLE test_table SYNC")
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node1.query("ATTACH TABLE test_table")
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node1.query(
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"INSERT INTO test_table VALUES ('2018-10-01', 1), ('2018-10-02', 2), ('2018-10-03', 3)"
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)
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node1.query(
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"INSERT INTO test_table VALUES ('2018-10-01', 4), ('2018-10-02', 5), ('2018-10-03', 6)"
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)
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assert (
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node1.query(
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"SELECT count(*) from system.parts where table = 'test_table' and active"
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)
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== "2\n"
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)
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# Parts may be moved to Deleting state and then back in Outdated state.
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# But system.parts returns only Active and Outdated parts if _state column is not queried.
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with PartitionManager() as pm:
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node1.query("OPTIMIZE TABLE test_table FINAL")
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pm.drop_instance_zk_connections(node1)
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# unfortunately we can be too fast and delete node before partition with ZK
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if (
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node1.query(
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"SELECT count(*) from system.parts where table = 'test_table' and _state!='dummy'"
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)
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== "1\n"
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):
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print("We were too fast and deleted parts before partition with ZK")
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else:
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time.sleep(10) # > old_parts_lifetime
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assert (
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node1.query(
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"SELECT count(*) from system.parts where table = 'test_table' and _state!='dummy'"
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)
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== "3\n"
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)
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assert_eq_with_retry(
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node1,
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"SELECT count(*) from system.parts where table = 'test_table' and active = 1",
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"1",
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)
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