import pytest from helpers.cluster import ClickHouseCluster from helpers.test_tools import assert_eq_with_retry cluster = ClickHouseCluster(__file__) node1 = cluster.add_instance('node1', with_zookeeper=True, image='yandex/clickhouse-server', tag='20.1.10.70', with_installed_binary=True, stay_alive=True) node2 = cluster.add_instance('node2', with_zookeeper=True, image='yandex/clickhouse-server', tag='20.1.10.70', with_installed_binary=True, stay_alive=True) node3 = cluster.add_instance('node3', with_zookeeper=True, image='yandex/clickhouse-server', tag='20.1.10.70', with_installed_binary=True, stay_alive=True) @pytest.fixture(scope="module") def start_cluster(): try: cluster.start() yield cluster finally: cluster.shutdown() def test_mutate_and_upgrade(start_cluster): for node in [node1, node2]: node.query( "CREATE TABLE mt (EventDate Date, id UInt64) ENGINE ReplicatedMergeTree('/clickhouse/tables/t', '{}') ORDER BY tuple()".format( node.name)) node1.query("INSERT INTO mt VALUES ('2020-02-13', 1), ('2020-02-13', 2);") node1.query("ALTER TABLE mt DELETE WHERE id = 2", settings={"mutations_sync": "2"}) node2.query("SYSTEM SYNC REPLICA mt", timeout=5) node1.restart_with_latest_version() node2.restart_with_latest_version() node2.query("INSERT INTO mt VALUES ('2020-02-13', 3);") node1.query("SYSTEM SYNC REPLICA mt", timeout=5) assert node1.query("SELECT COUNT() FROM mt") == "2\n" assert node2.query("SELECT COUNT() FROM mt") == "2\n" node1.query("INSERT INTO mt VALUES ('2020-02-13', 4);") node2.query("SYSTEM SYNC REPLICA mt", timeout=5) assert node1.query("SELECT COUNT() FROM mt") == "3\n" assert node2.query("SELECT COUNT() FROM mt") == "3\n" node2.query("ALTER TABLE mt DELETE WHERE id = 3", settings={"mutations_sync": "2"}) node1.query("SYSTEM SYNC REPLICA mt", timeout=5) assert node1.query("SELECT COUNT() FROM mt") == "2\n" assert node2.query("SELECT COUNT() FROM mt") == "2\n" node1.query("ALTER TABLE mt MODIFY COLUMN id Int32 DEFAULT 0", settings={"replication_alter_partitions_sync": "2"}) node2.query("OPTIMIZE TABLE mt FINAL") assert node1.query("SELECT id FROM mt") == "1\n4\n" assert node2.query("SELECT id FROM mt") == "1\n4\n" def test_upgrade_while_mutation(start_cluster): node3.query( "CREATE TABLE mt1 (EventDate Date, id UInt64) ENGINE ReplicatedMergeTree('/clickhouse/tables/t1', 'node3') ORDER BY tuple()") node3.query("INSERT INTO mt1 select '2020-02-13', number from numbers(100000)") node3.query("SYSTEM STOP MERGES") node3.query("ALTER TABLE mt1 DELETE WHERE id % 2 == 0") node3.restart_with_latest_version() # will delete nothing, but previous async mutation will finish with this query node3.query("ALTER TABLE mt1 DELETE WHERE id > 100000", settings={"mutations_sync": "2"}) assert_eq_with_retry(node3, "SELECT COUNT() from mt1", "50000\n")