import time import pytest from helpers.network import PartitionManager from helpers.cluster import ClickHouseCluster from helpers.test_tools import assert_eq_with_retry cluster = ClickHouseCluster(__file__) node1 = cluster.add_instance('node1', main_configs=['configs/remote_servers.xml'], with_zookeeper=True) @pytest.fixture(scope="module") def start_cluster(): try: cluster.start() node1.query( ''' CREATE DATABASE test; CREATE TABLE test_table(date Date, id UInt32) ENGINE = ReplicatedMergeTree('/clickhouse/tables/test/replicated', 'node1') ORDER BY id PARTITION BY toYYYYMM(date) SETTINGS old_parts_lifetime=4, cleanup_delay_period=1; ''' ) yield cluster except Exception as ex: print ex finally: cluster.shutdown() # Test that outdated parts are not removed when they cannot be removed from zookeeper def test_merge_doesnt_work_without_zookeeper(start_cluster): node1.query("INSERT INTO test_table VALUES ('2018-10-01', 1), ('2018-10-02', 2), ('2018-10-03', 3)") node1.query("INSERT INTO test_table VALUES ('2018-10-01', 4), ('2018-10-02', 5), ('2018-10-03', 6)") assert node1.query("SELECT count(*) from system.parts where table = 'test_table'") == "2\n" node1.query("OPTIMIZE TABLE test_table FINAL") assert node1.query("SELECT count(*) from system.parts where table = 'test_table'") == "3\n" assert_eq_with_retry(node1, "SELECT count(*) from system.parts where table = 'test_table' and active = 1", "1") node1.query("TRUNCATE TABLE test_table") assert node1.query("SELECT count(*) from system.parts where table = 'test_table'") == "0\n" node1.query("INSERT INTO test_table VALUES ('2018-10-01', 1), ('2018-10-02', 2), ('2018-10-03', 3)") node1.query("INSERT INTO test_table VALUES ('2018-10-01', 4), ('2018-10-02', 5), ('2018-10-03', 6)") assert node1.query("SELECT count(*) from system.parts where table = 'test_table'") == "2\n" with PartitionManager() as pm: node1.query("OPTIMIZE TABLE test_table FINAL") pm.drop_instance_zk_connections(node1) time.sleep(10) # > old_parts_lifetime assert node1.query("SELECT count(*) from system.parts where table = 'test_table'") == "3\n" assert_eq_with_retry(node1, "SELECT count(*) from system.parts where table = 'test_table' and active = 1", "1")