import pytest import time import psycopg2 import os.path as p from helpers.cluster import ClickHouseCluster from helpers.test_tools import assert_eq_with_retry from psycopg2.extensions import ISOLATION_LEVEL_AUTOCOMMIT from helpers.test_tools import TSV import threading cluster = ClickHouseCluster(__file__) instance = cluster.add_instance( "instance", main_configs=["configs/log_conf.xml"], with_postgres=True, stay_alive=True, ) postgres_table_template = """ CREATE TABLE IF NOT EXISTS {} ( key Integer NOT NULL, value Integer, PRIMARY KEY(key)) """ queries = [ "INSERT INTO postgresql_replica select i, i from generate_series(0, 10000) as t(i);", "DELETE FROM postgresql_replica WHERE (value*value) % 3 = 0;", "UPDATE postgresql_replica SET value = value + 125 WHERE key % 2 = 0;", "UPDATE postgresql_replica SET key=key+20000 WHERE key%2=0", "INSERT INTO postgresql_replica select i, i from generate_series(40000, 50000) as t(i);", "DELETE FROM postgresql_replica WHERE key % 10 = 0;", "UPDATE postgresql_replica SET value = value + 101 WHERE key % 2 = 1;", "UPDATE postgresql_replica SET key=key+80000 WHERE key%2=1", "DELETE FROM postgresql_replica WHERE value % 2 = 0;", "UPDATE postgresql_replica SET value = value + 2000 WHERE key % 5 = 0;", "INSERT INTO postgresql_replica select i, i from generate_series(200000, 250000) as t(i);", "DELETE FROM postgresql_replica WHERE value % 3 = 0;", "UPDATE postgresql_replica SET value = value * 2 WHERE key % 3 = 0;", "UPDATE postgresql_replica SET key=key+500000 WHERE key%2=1", "INSERT INTO postgresql_replica select i, i from generate_series(1000000, 1050000) as t(i);", "DELETE FROM postgresql_replica WHERE value % 9 = 2;", "UPDATE postgresql_replica SET key=key+10000000", "UPDATE postgresql_replica SET value = value + 2 WHERE key % 3 = 1;", "DELETE FROM postgresql_replica WHERE value%5 = 0;", ] @pytest.mark.timeout(30) def check_tables_are_synchronized( table_name, order_by="key", postgres_database="postgres_database" ): expected = instance.query( "select * from {}.{} order by {};".format( postgres_database, table_name, order_by ) ) result = instance.query( "select * from test.{} order by {};".format(table_name, order_by) ) while result != expected: time.sleep(0.5) result = instance.query( "select * from test.{} order by {};".format(table_name, order_by) ) assert result == expected def get_postgres_conn( ip, port, database=False, auto_commit=True, database_name="postgres_database" ): if database == True: conn_string = "host={} port={} dbname='{}' user='postgres' password='mysecretpassword'".format( ip, port, database_name ) else: conn_string = ( "host={} port={} user='postgres' password='mysecretpassword'".format( ip, port ) ) conn = psycopg2.connect(conn_string) if auto_commit: conn.set_isolation_level(ISOLATION_LEVEL_AUTOCOMMIT) conn.autocommit = True return conn def create_postgres_db(cursor, name): cursor.execute("CREATE DATABASE {}".format(name)) def create_clickhouse_postgres_db(ip, port, name="postgres_database"): instance.query( """ CREATE DATABASE {} ENGINE = PostgreSQL('{}:{}', '{}', 'postgres', 'mysecretpassword')""".format( name, ip, port, name ) ) def create_materialized_table(ip, port): instance.query( """ CREATE TABLE test.postgresql_replica (key UInt64, value UInt64) ENGINE = MaterializedPostgreSQL( '{}:{}', 'postgres_database', 'postgresql_replica', 'postgres', 'mysecretpassword') PRIMARY KEY key; """.format( ip, port ) ) def create_postgres_table(cursor, table_name, replica_identity_full=False): cursor.execute("DROP TABLE IF EXISTS {}".format(table_name)) cursor.execute(postgres_table_template.format(table_name)) if replica_identity_full: cursor.execute("ALTER TABLE {} REPLICA IDENTITY FULL;".format(table_name)) def postgresql_replica_check_result( result, check=False, ref_file="test_postgresql_replica.reference" ): fpath = p.join(p.dirname(__file__), ref_file) with open(fpath) as reference: if check: assert TSV(result) == TSV(reference) else: return TSV(result) == TSV(reference) @pytest.fixture(scope="module") def started_cluster(): try: cluster.start() conn = get_postgres_conn(ip=cluster.postgres_ip, port=cluster.postgres_port) cursor = conn.cursor() create_postgres_db(cursor, "postgres_database") create_clickhouse_postgres_db( ip=cluster.postgres_ip, port=cluster.postgres_port ) instance.query("CREATE DATABASE test") yield cluster finally: cluster.shutdown() @pytest.mark.timeout(320) def test_initial_load_from_snapshot(started_cluster): conn = get_postgres_conn( ip=started_cluster.postgres_ip, port=started_cluster.postgres_port, database=True, ) cursor = conn.cursor() create_postgres_table(cursor, "postgresql_replica") instance.query( "INSERT INTO postgres_database.postgresql_replica SELECT number, number from numbers(50)" ) instance.query("DROP TABLE IF EXISTS test.postgresql_replica") create_materialized_table( ip=started_cluster.postgres_ip, port=started_cluster.postgres_port ) result = instance.query("SELECT * FROM test.postgresql_replica ORDER BY key;") while postgresql_replica_check_result(result) == False: time.sleep(0.2) result = instance.query("SELECT * FROM test.postgresql_replica ORDER BY key;") cursor.execute("DROP TABLE postgresql_replica;") postgresql_replica_check_result(result, True) @pytest.mark.timeout(320) def test_no_connection_at_startup(started_cluster): conn = get_postgres_conn( ip=started_cluster.postgres_ip, port=started_cluster.postgres_port, database=True, ) cursor = conn.cursor() create_postgres_table(cursor, "postgresql_replica") instance.query( "INSERT INTO postgres_database.postgresql_replica SELECT number, number from numbers(50)" ) instance.query("DROP TABLE IF EXISTS test.postgresql_replica") create_materialized_table( ip=started_cluster.postgres_ip, port=started_cluster.postgres_port ) time.sleep(3) instance.query("DETACH TABLE test.postgresql_replica") started_cluster.pause_container("postgres1") instance.query("ATTACH TABLE test.postgresql_replica") time.sleep(3) started_cluster.unpause_container("postgres1") result = instance.query("SELECT count() FROM test.postgresql_replica;") while int(result) == 0: time.sleep(0.5) result = instance.query("SELECT count() FROM test.postgresql_replica;") result = instance.query("SELECT * FROM test.postgresql_replica ORDER BY key;") cursor.execute("DROP TABLE postgresql_replica;") postgresql_replica_check_result(result, True) @pytest.mark.timeout(320) def test_detach_attach_is_ok(started_cluster): conn = get_postgres_conn( ip=started_cluster.postgres_ip, port=started_cluster.postgres_port, database=True, ) cursor = conn.cursor() create_postgres_table(cursor, "postgresql_replica") instance.query( "INSERT INTO postgres_database.postgresql_replica SELECT number, number from numbers(50)" ) instance.query("DROP TABLE IF EXISTS test.postgresql_replica") create_materialized_table( ip=started_cluster.postgres_ip, port=started_cluster.postgres_port ) result = instance.query("SELECT count() FROM test.postgresql_replica;") while int(result) == 0: time.sleep(0.2) result = instance.query("SELECT count() FROM test.postgresql_replica;") result = instance.query("SELECT * FROM test.postgresql_replica ORDER BY key;") postgresql_replica_check_result(result, True) instance.query("DETACH TABLE test.postgresql_replica") instance.query("ATTACH TABLE test.postgresql_replica") result = instance.query("SELECT * FROM test.postgresql_replica ORDER BY key;") while postgresql_replica_check_result(result) == False: time.sleep(0.5) result = instance.query("SELECT * FROM test.postgresql_replica ORDER BY key;") cursor.execute("DROP TABLE postgresql_replica;") postgresql_replica_check_result(result, True) @pytest.mark.timeout(320) def test_replicating_insert_queries(started_cluster): conn = get_postgres_conn( ip=started_cluster.postgres_ip, port=started_cluster.postgres_port, database=True, ) cursor = conn.cursor() create_postgres_table(cursor, "postgresql_replica") instance.query( "INSERT INTO postgres_database.postgresql_replica SELECT number, number from numbers(10)" ) instance.query("DROP TABLE IF EXISTS test.postgresql_replica") create_materialized_table( ip=started_cluster.postgres_ip, port=started_cluster.postgres_port ) result = instance.query("SELECT count() FROM test.postgresql_replica;") while int(result) != 10: time.sleep(0.2) result = instance.query("SELECT count() FROM test.postgresql_replica;") instance.query( "INSERT INTO postgres_database.postgresql_replica SELECT 10 + number, 10 + number from numbers(10)" ) instance.query( "INSERT INTO postgres_database.postgresql_replica SELECT 20 + number, 20 + number from numbers(10)" ) result = instance.query("SELECT count() FROM test.postgresql_replica;") while int(result) != 30: time.sleep(0.2) result = instance.query("SELECT count() FROM test.postgresql_replica;") instance.query( "INSERT INTO postgres_database.postgresql_replica SELECT 30 + number, 30 + number from numbers(10)" ) instance.query( "INSERT INTO postgres_database.postgresql_replica SELECT 40 + number, 40 + number from numbers(10)" ) result = instance.query("SELECT count() FROM test.postgresql_replica;") while int(result) != 50: time.sleep(0.2) result = instance.query("SELECT count() FROM test.postgresql_replica;") result = instance.query("SELECT * FROM test.postgresql_replica ORDER BY key;") cursor.execute("DROP TABLE postgresql_replica;") postgresql_replica_check_result(result, True) @pytest.mark.timeout(320) def test_replicating_delete_queries(started_cluster): conn = get_postgres_conn( ip=started_cluster.postgres_ip, port=started_cluster.postgres_port, database=True, ) cursor = conn.cursor() create_postgres_table(cursor, "postgresql_replica") instance.query( "INSERT INTO postgres_database.postgresql_replica SELECT number, number from numbers(50)" ) instance.query("DROP TABLE IF EXISTS test.postgresql_replica") create_materialized_table( ip=started_cluster.postgres_ip, port=started_cluster.postgres_port ) result = instance.query("SELECT * FROM test.postgresql_replica ORDER BY key;") while postgresql_replica_check_result(result) == False: time.sleep(0.2) result = instance.query("SELECT * FROM test.postgresql_replica ORDER BY key;") instance.query( "INSERT INTO postgres_database.postgresql_replica SELECT 50 + number, 50 + number from numbers(50)" ) result = instance.query("SELECT count() FROM test.postgresql_replica;") while int(result) != 100: time.sleep(0.5) result = instance.query("SELECT count() FROM test.postgresql_replica;") cursor.execute("DELETE FROM postgresql_replica WHERE key > 49;") result = instance.query("SELECT * FROM test.postgresql_replica ORDER BY key;") while postgresql_replica_check_result(result) == False: time.sleep(0.5) result = instance.query("SELECT * FROM test.postgresql_replica ORDER BY key;") cursor.execute("DROP TABLE postgresql_replica;") postgresql_replica_check_result(result, True) @pytest.mark.timeout(320) def test_replicating_update_queries(started_cluster): conn = get_postgres_conn( ip=started_cluster.postgres_ip, port=started_cluster.postgres_port, database=True, ) cursor = conn.cursor() create_postgres_table(cursor, "postgresql_replica") instance.query( "INSERT INTO postgres_database.postgresql_replica SELECT number, number + 10 from numbers(50)" ) instance.query("DROP TABLE IF EXISTS test.postgresql_replica") create_materialized_table( ip=started_cluster.postgres_ip, port=started_cluster.postgres_port ) result = instance.query("SELECT count() FROM test.postgresql_replica;") while int(result) != 50: time.sleep(0.2) result = instance.query("SELECT count() FROM test.postgresql_replica;") cursor.execute("UPDATE postgresql_replica SET value = value - 10;") result = instance.query("SELECT * FROM test.postgresql_replica ORDER BY key;") while postgresql_replica_check_result(result) == False: time.sleep(0.5) result = instance.query("SELECT * FROM test.postgresql_replica ORDER BY key;") cursor.execute("DROP TABLE postgresql_replica;") postgresql_replica_check_result(result, True) @pytest.mark.timeout(320) def test_resume_from_written_version(started_cluster): conn = get_postgres_conn( ip=started_cluster.postgres_ip, port=started_cluster.postgres_port, database=True, ) cursor = conn.cursor() create_postgres_table(cursor, "postgresql_replica") instance.query( "INSERT INTO postgres_database.postgresql_replica SELECT number, number + 10 from numbers(50)" ) instance.query("DROP TABLE IF EXISTS test.postgresql_replica") create_materialized_table( ip=started_cluster.postgres_ip, port=started_cluster.postgres_port ) result = instance.query("SELECT count() FROM test.postgresql_replica;") while int(result) != 50: time.sleep(0.2) result = instance.query("SELECT count() FROM test.postgresql_replica;") instance.query( "INSERT INTO postgres_database.postgresql_replica SELECT 50 + number, 50 + number from numbers(50)" ) result = instance.query("SELECT count() FROM test.postgresql_replica;") while int(result) != 100: time.sleep(0.2) result = instance.query("SELECT count() FROM test.postgresql_replica;") instance.query("DETACH TABLE test.postgresql_replica") cursor.execute("DELETE FROM postgresql_replica WHERE key > 49;") cursor.execute("UPDATE postgresql_replica SET value = value - 10;") instance.query("ATTACH TABLE test.postgresql_replica") result = instance.query("SELECT * FROM test.postgresql_replica ORDER BY key;") while postgresql_replica_check_result(result) == False: time.sleep(0.5) result = instance.query("SELECT * FROM test.postgresql_replica ORDER BY key;") cursor.execute("DROP TABLE postgresql_replica;") postgresql_replica_check_result(result, True) @pytest.mark.timeout(320) def test_many_replication_messages(started_cluster): conn = get_postgres_conn( ip=started_cluster.postgres_ip, port=started_cluster.postgres_port, database=True, ) cursor = conn.cursor() create_postgres_table(cursor, "postgresql_replica") instance.query( "INSERT INTO postgres_database.postgresql_replica SELECT number, number from numbers(100000)" ) instance.query("DROP TABLE IF EXISTS test.postgresql_replica") create_materialized_table( ip=started_cluster.postgres_ip, port=started_cluster.postgres_port ) result = instance.query("SELECT count() FROM test.postgresql_replica;") while int(result) != 100000: time.sleep(0.2) result = instance.query("SELECT count() FROM test.postgresql_replica;") print("SYNC OK") instance.query( "INSERT INTO postgres_database.postgresql_replica SELECT number, number from numbers(100000, 100000)" ) result = instance.query("SELECT count() FROM test.postgresql_replica;") while int(result) != 200000: time.sleep(1) result = instance.query("SELECT count() FROM test.postgresql_replica;") print("INSERT OK") result = instance.query("SELECT key FROM test.postgresql_replica ORDER BY key;") expected = instance.query("SELECT number from numbers(200000)") assert result == expected cursor.execute("UPDATE postgresql_replica SET value = key + 1 WHERE key < 100000;") result = instance.query( "SELECT key FROM test.postgresql_replica WHERE value = key + 1 ORDER BY key;" ) expected = instance.query("SELECT number from numbers(100000)") while result != expected: time.sleep(1) result = instance.query( "SELECT key FROM test.postgresql_replica WHERE value = key + 1 ORDER BY key;" ) print("UPDATE OK") cursor.execute("DELETE FROM postgresql_replica WHERE key % 2 = 1;") cursor.execute("DELETE FROM postgresql_replica WHERE key != value;") result = instance.query( "SELECT count() FROM (SELECT * FROM test.postgresql_replica);" ) while int(result) != 50000: time.sleep(1) result = instance.query( "SELECT count() FROM (SELECT * FROM test.postgresql_replica);" ) print("DELETE OK") cursor.execute("DROP TABLE postgresql_replica;") @pytest.mark.timeout(320) def test_connection_loss(started_cluster): conn = get_postgres_conn( ip=started_cluster.postgres_ip, port=started_cluster.postgres_port, database=True, ) cursor = conn.cursor() create_postgres_table(cursor, "postgresql_replica") instance.query( "INSERT INTO postgres_database.postgresql_replica SELECT number, number from numbers(50)" ) instance.query("DROP TABLE IF EXISTS test.postgresql_replica") create_materialized_table( ip=started_cluster.postgres_ip, port=started_cluster.postgres_port ) i = 50 while i < 100000: instance.query( "INSERT INTO postgres_database.postgresql_replica SELECT {} + number, number from numbers(10000)".format( i ) ) i += 10000 started_cluster.pause_container("postgres1") result = instance.query("SELECT count() FROM test.postgresql_replica;") print(int(result)) time.sleep(6) started_cluster.unpause_container("postgres1") result = instance.query("SELECT count() FROM test.postgresql_replica;") while int(result) < 100050: time.sleep(1) result = instance.query("SELECT count() FROM test.postgresql_replica;") cursor.execute("DROP TABLE postgresql_replica;") assert int(result) == 100050 @pytest.mark.timeout(320) def test_clickhouse_restart(started_cluster): conn = get_postgres_conn( ip=started_cluster.postgres_ip, port=started_cluster.postgres_port, database=True, ) cursor = conn.cursor() create_postgres_table(cursor, "postgresql_replica") instance.query( "INSERT INTO postgres_database.postgresql_replica SELECT number, number from numbers(50)" ) instance.query("DROP TABLE IF EXISTS test.postgresql_replica") create_materialized_table( ip=started_cluster.postgres_ip, port=started_cluster.postgres_port ) i = 50 while i < 100000: instance.query( "INSERT INTO postgres_database.postgresql_replica SELECT {} + number, number from numbers(10000)".format( i ) ) i += 10000 instance.restart_clickhouse() result = instance.query("SELECT count() FROM test.postgresql_replica;") while int(result) < 100050: time.sleep(1) result = instance.query("SELECT count() FROM test.postgresql_replica;") cursor.execute("DROP TABLE postgresql_replica;") print(result) assert int(result) == 100050 def test_rename_table(started_cluster): conn = get_postgres_conn( ip=started_cluster.postgres_ip, port=started_cluster.postgres_port, database=True, ) cursor = conn.cursor() create_postgres_table(cursor, "postgresql_replica") instance.query("DROP TABLE IF EXISTS test.postgresql_replica") create_materialized_table( ip=started_cluster.postgres_ip, port=started_cluster.postgres_port ) instance.query( "INSERT INTO postgres_database.postgresql_replica SELECT number, number from numbers(25)" ) result = instance.query("SELECT count() FROM test.postgresql_replica;") while int(result) != 25: time.sleep(0.5) result = instance.query("SELECT count() FROM test.postgresql_replica;") instance.query( "RENAME TABLE test.postgresql_replica TO test.postgresql_replica_renamed" ) assert ( int(instance.query("SELECT count() FROM test.postgresql_replica_renamed;")) == 25 ) instance.query( "INSERT INTO postgres_database.postgresql_replica SELECT number, number from numbers(25, 25)" ) result = instance.query("SELECT count() FROM test.postgresql_replica_renamed;") while int(result) != 50: time.sleep(0.5) result = instance.query("SELECT count() FROM test.postgresql_replica_renamed;") result = instance.query( "SELECT * FROM test.postgresql_replica_renamed ORDER BY key;" ) postgresql_replica_check_result(result, True) cursor.execute("DROP TABLE postgresql_replica;") instance.query("DROP TABLE IF EXISTS test.postgresql_replica_renamed") def test_virtual_columns(started_cluster): conn = get_postgres_conn( ip=started_cluster.postgres_ip, port=started_cluster.postgres_port, database=True, ) cursor = conn.cursor() create_postgres_table(cursor, "postgresql_replica") instance.query("DROP TABLE IF EXISTS test.postgresql_replica") create_materialized_table( ip=started_cluster.postgres_ip, port=started_cluster.postgres_port ) instance.query( "INSERT INTO postgres_database.postgresql_replica SELECT number, number from numbers(10)" ) result = instance.query("SELECT count() FROM test.postgresql_replica;") while int(result) != 10: time.sleep(0.5) result = instance.query("SELECT count() FROM test.postgresql_replica;") # just check that it works, no check with `expected` becuase _version is taken as LSN, which will be different each time. result = instance.query( "SELECT key, value, _sign, _version FROM test.postgresql_replica;" ) print(result) cursor.execute("DROP TABLE postgresql_replica;") def test_abrupt_connection_loss_while_heavy_replication(started_cluster): instance.query("DROP DATABASE IF EXISTS test_database") conn = get_postgres_conn( ip=started_cluster.postgres_ip, port=started_cluster.postgres_port, database=True, ) cursor = conn.cursor() create_postgres_table(cursor, "postgresql_replica") instance.query("DROP TABLE IF EXISTS test.postgresql_replica") create_materialized_table( ip=started_cluster.postgres_ip, port=started_cluster.postgres_port ) for i in range(len(queries)): query = queries[i] cursor.execute(query) print("query {}".format(query)) started_cluster.pause_container("postgres1") result = instance.query("SELECT count() FROM test.postgresql_replica") print(result) # Just debug started_cluster.unpause_container("postgres1") check_tables_are_synchronized("postgresql_replica") result = instance.query("SELECT count() FROM test.postgresql_replica") print(result) # Just debug def test_abrupt_server_restart_while_heavy_replication(started_cluster): conn = get_postgres_conn( ip=started_cluster.postgres_ip, port=started_cluster.postgres_port, database=True, ) cursor = conn.cursor() create_postgres_table(cursor, "postgresql_replica") instance.query("DROP TABLE IF EXISTS test.postgresql_replica") create_materialized_table( ip=started_cluster.postgres_ip, port=started_cluster.postgres_port ) for query in queries: cursor.execute(query) print("query {}".format(query)) instance.restart_clickhouse() result = instance.query("SELECT count() FROM test.postgresql_replica") print(result) # Just debug check_tables_are_synchronized("postgresql_replica") result = instance.query("SELECT count() FROM test.postgresql_replica") print(result) # Just debug def test_drop_table_immediately(started_cluster): conn = get_postgres_conn( ip=started_cluster.postgres_ip, port=started_cluster.postgres_port, database=True, ) cursor = conn.cursor() create_postgres_table(cursor, "postgresql_replica") instance.query( "INSERT INTO postgres_database.postgresql_replica SELECT number, number from numbers(100000)" ) instance.query("DROP TABLE IF EXISTS test.postgresql_replica") create_materialized_table( ip=started_cluster.postgres_ip, port=started_cluster.postgres_port ) instance.query("DROP TABLE test.postgresql_replica") create_materialized_table( ip=started_cluster.postgres_ip, port=started_cluster.postgres_port ) check_tables_are_synchronized("postgresql_replica") instance.query("DROP TABLE test.postgresql_replica") if __name__ == "__main__": cluster.start() input("Cluster created, press any key to destroy...") cluster.shutdown()