import time import pytest import os import pymysql.cursors import psycopg2 from psycopg2.extensions import ISOLATION_LEVEL_AUTOCOMMIT from helpers.cluster import ClickHouseCluster SCRIPT_DIR = os.path.dirname(os.path.realpath(__file__)) cluster = ClickHouseCluster(__file__, base_configs_dir=os.path.join(SCRIPT_DIR, 'configs')) node1 = cluster.add_instance('node1', with_odbc_drivers=True, with_mysql=True, image='alesapin/ubuntu_with_odbc', main_configs=['configs/dictionaries/sqlite3_odbc_hashed_dictionary.xml', 'configs/dictionaries/sqlite3_odbc_cached_dictionary.xml', 'configs/dictionaries/postgres_odbc_hashed_dictionary.xml'], stay_alive=True) create_table_sql_template = """ CREATE TABLE `clickhouse`.`{}` ( `id` int(11) NOT NULL, `name` varchar(50) NOT NULL, `age` int NOT NULL default 0, `money` int NOT NULL default 0, `column_x` int default NULL, PRIMARY KEY (`id`)) ENGINE=InnoDB; """ def get_mysql_conn(): conn = pymysql.connect(user='root', password='clickhouse', host='127.0.0.1', port=3308) return conn def create_mysql_db(conn, name): with conn.cursor() as cursor: cursor.execute( "CREATE DATABASE {} DEFAULT CHARACTER SET 'utf8'".format(name)) def create_mysql_table(conn, table_name): with conn.cursor() as cursor: cursor.execute(create_table_sql_template.format(table_name)) def get_postgres_conn(): conn_string = "host='localhost' user='postgres' password='mysecretpassword'" conn = psycopg2.connect(conn_string) conn.set_isolation_level(ISOLATION_LEVEL_AUTOCOMMIT) conn.autocommit = True return conn def create_postgres_db(conn, name): cursor = conn.cursor() cursor.execute("CREATE SCHEMA {}".format(name)) @pytest.fixture(scope="module") def started_cluster(): try: cluster.start() sqlite_db = node1.odbc_drivers["SQLite3"]["Database"] print "sqlite data received" node1.exec_in_container(["bash", "-c", "echo 'CREATE TABLE t1(x INTEGER PRIMARY KEY ASC, y, z);' | sqlite3 {}".format(sqlite_db)], privileged=True, user='root') node1.exec_in_container(["bash", "-c", "echo 'CREATE TABLE t2(X INTEGER PRIMARY KEY ASC, Y, Z);' | sqlite3 {}".format(sqlite_db)], privileged=True, user='root') node1.exec_in_container(["bash", "-c", "echo 'CREATE TABLE t3(X INTEGER PRIMARY KEY ASC, Y, Z);' | sqlite3 {}".format(sqlite_db)], privileged=True, user='root') node1.exec_in_container(["bash", "-c", "echo 'CREATE TABLE t4(X INTEGER PRIMARY KEY ASC, Y, Z);' | sqlite3 {}".format(sqlite_db)], privileged=True, user='root') print "sqlite tables created" mysql_conn = get_mysql_conn() print "mysql connection received" ## create mysql db and table create_mysql_db(mysql_conn, 'clickhouse') print "mysql database created" postgres_conn = get_postgres_conn() print "postgres connection received" create_postgres_db(postgres_conn, 'clickhouse') print "postgres db created" cursor = postgres_conn.cursor() cursor.execute("create table if not exists clickhouse.test_table (column1 int primary key, column2 varchar(40) not null)") yield cluster except Exception as ex: print(ex) raise ex finally: cluster.shutdown() def test_mysql_simple_select_works(started_cluster): mysql_setup = node1.odbc_drivers["MySQL"] table_name = 'test_insert_select' conn = get_mysql_conn() create_mysql_table(conn, table_name) # Check that NULL-values are handled correctly by the ODBC-bridge with conn.cursor() as cursor: cursor.execute("INSERT INTO clickhouse.{} VALUES(50, 'null-guy', 127, 255, NULL), (100, 'non-null-guy', 127, 255, 511);".format(table_name)) conn.commit() assert node1.query("SELECT column_x FROM odbc('DSN={}', '{}') SETTINGS external_table_functions_use_nulls=1".format(mysql_setup["DSN"], table_name)) == '\\N\n511\n' assert node1.query("SELECT column_x FROM odbc('DSN={}', '{}') SETTINGS external_table_functions_use_nulls=0".format(mysql_setup["DSN"], table_name)) == '0\n511\n' node1.query(''' CREATE TABLE {}(id UInt32, name String, age UInt32, money UInt32, column_x Nullable(UInt32)) ENGINE = MySQL('mysql1:3306', 'clickhouse', '{}', 'root', 'clickhouse'); '''.format(table_name, table_name)) node1.query("INSERT INTO {}(id, name, money, column_x) select number, concat('name_', toString(number)), 3, NULL from numbers(49) ".format(table_name)) node1.query("INSERT INTO {}(id, name, money, column_x) select number, concat('name_', toString(number)), 3, 42 from numbers(51, 49) ".format(table_name)) assert node1.query("SELECT COUNT () FROM {} WHERE column_x IS NOT NULL".format(table_name)) == '50\n' assert node1.query("SELECT COUNT () FROM {} WHERE column_x IS NULL".format(table_name)) == '50\n' assert node1.query("SELECT count(*) FROM odbc('DSN={}', '{}')".format(mysql_setup["DSN"], table_name)) == '100\n' # previously this test fails with segfault # just to be sure :) assert node1.query("select 1") == "1\n" conn.close() def test_sqlite_simple_select_function_works(started_cluster): sqlite_setup = node1.odbc_drivers["SQLite3"] sqlite_db = sqlite_setup["Database"] node1.exec_in_container(["bash", "-c", "echo 'INSERT INTO t1 values(1, 2, 3);' | sqlite3 {}".format(sqlite_db)], privileged=True, user='root') assert node1.query("select * from odbc('DSN={}', '{}')".format(sqlite_setup["DSN"], 't1')) == "1\t2\t3\n" assert node1.query("select y from odbc('DSN={}', '{}')".format(sqlite_setup["DSN"], 't1')) == "2\n" assert node1.query("select z from odbc('DSN={}', '{}')".format(sqlite_setup["DSN"], 't1')) == "3\n" assert node1.query("select x from odbc('DSN={}', '{}')".format(sqlite_setup["DSN"], 't1')) == "1\n" assert node1.query("select x, y from odbc('DSN={}', '{}')".format(sqlite_setup["DSN"], 't1')) == "1\t2\n" assert node1.query("select z, x, y from odbc('DSN={}', '{}')".format(sqlite_setup["DSN"], 't1')) == "3\t1\t2\n" assert node1.query("select count(), sum(x) from odbc('DSN={}', '{}') group by x".format(sqlite_setup["DSN"], 't1')) == "1\t1\n" def test_sqlite_simple_select_storage_works(started_cluster): sqlite_setup = node1.odbc_drivers["SQLite3"] sqlite_db = sqlite_setup["Database"] node1.exec_in_container(["bash", "-c", "echo 'INSERT INTO t4 values(1, 2, 3);' | sqlite3 {}".format(sqlite_db)], privileged=True, user='root') node1.query("create table SqliteODBC (x Int32, y String, z String) engine = ODBC('DSN={}', '', 't4')".format(sqlite_setup["DSN"])) assert node1.query("select * from SqliteODBC") == "1\t2\t3\n" assert node1.query("select y from SqliteODBC") == "2\n" assert node1.query("select z from SqliteODBC") == "3\n" assert node1.query("select x from SqliteODBC") == "1\n" assert node1.query("select x, y from SqliteODBC") == "1\t2\n" assert node1.query("select z, x, y from SqliteODBC") == "3\t1\t2\n" assert node1.query("select count(), sum(x) from SqliteODBC group by x") == "1\t1\n" def test_sqlite_odbc_hashed_dictionary(started_cluster): sqlite_db = node1.odbc_drivers["SQLite3"]["Database"] node1.exec_in_container(["bash", "-c", "echo 'INSERT INTO t2 values(1, 2, 3);' | sqlite3 {}".format(sqlite_db)], privileged=True, user='root') assert node1.query("select dictGetUInt8('sqlite3_odbc_hashed', 'Z', toUInt64(1))") == "3\n" assert node1.query("select dictGetUInt8('sqlite3_odbc_hashed', 'Z', toUInt64(200))") == "1\n" # default time.sleep(5) # first reload node1.exec_in_container(["bash", "-c", "echo 'INSERT INTO t2 values(200, 2, 7);' | sqlite3 {}".format(sqlite_db)], privileged=True, user='root') # No reload because of invalidate query time.sleep(5) assert node1.query("select dictGetUInt8('sqlite3_odbc_hashed', 'Z', toUInt64(1))") == "3\n" assert node1.query("select dictGetUInt8('sqlite3_odbc_hashed', 'Z', toUInt64(200))") == "1\n" # still default node1.exec_in_container(["bash", "-c", "echo 'REPLACE INTO t2 values(1, 2, 5);' | sqlite3 {}".format(sqlite_db)], privileged=True, user='root') # waiting for reload time.sleep(5) assert node1.query("select dictGetUInt8('sqlite3_odbc_hashed', 'Z', toUInt64(1))") == "5\n" assert node1.query("select dictGetUInt8('sqlite3_odbc_hashed', 'Z', toUInt64(200))") == "7\n" # new value def test_sqlite_odbc_cached_dictionary(started_cluster): sqlite_db = node1.odbc_drivers["SQLite3"]["Database"] node1.exec_in_container(["bash", "-c", "echo 'INSERT INTO t3 values(1, 2, 3);' | sqlite3 {}".format(sqlite_db)], privileged=True, user='root') assert node1.query("select dictGetUInt8('sqlite3_odbc_cached', 'Z', toUInt64(1))") == "3\n" node1.exec_in_container(["bash", "-c", "echo 'INSERT INTO t3 values(200, 2, 7);' | sqlite3 {}".format(sqlite_db)], privileged=True, user='root') assert node1.query("select dictGetUInt8('sqlite3_odbc_cached', 'Z', toUInt64(200))") == "7\n" # new value node1.exec_in_container(["bash", "-c", "echo 'REPLACE INTO t3 values(1, 2, 12);' | sqlite3 {}".format(sqlite_db)], privileged=True, user='root') time.sleep(5) assert node1.query("select dictGetUInt8('sqlite3_odbc_cached', 'Z', toUInt64(1))") == "12\n" def test_postgres_odbc_hached_dictionary_with_schema(started_cluster): conn = get_postgres_conn() cursor = conn.cursor() cursor.execute("insert into clickhouse.test_table values(1, 'hello'),(2, 'world')") time.sleep(5) assert node1.query("select dictGetString('postgres_odbc_hashed', 'column2', toUInt64(1))") == "hello\n" assert node1.query("select dictGetString('postgres_odbc_hashed', 'column2', toUInt64(2))") == "world\n" def test_postgres_odbc_hached_dictionary_no_tty_pipe_overflow(started_cluster): conn = get_postgres_conn() cursor = conn.cursor() cursor.execute("insert into clickhouse.test_table values(3, 'xxx')") for i in xrange(100): try: node1.query("system reload dictionary postgres_odbc_hashed", timeout=5) except Exception as ex: assert False, "Exception occured -- odbc-bridge hangs: " + str(ex) assert node1.query("select dictGetString('postgres_odbc_hashed', 'column2', toUInt64(3))") == "xxx\n" def test_bridge_dies_with_parent(started_cluster): node1.query("select dictGetString('postgres_odbc_hashed', 'column2', toUInt64(1))") clickhouse_pid = node1.get_process_pid("clickhouse server") bridge_pid = node1.get_process_pid("odbc-bridge") assert clickhouse_pid is not None assert bridge_pid is not None while clickhouse_pid is not None: try: node1.exec_in_container(["bash", "-c", "kill {}".format(clickhouse_pid)], privileged=True, user='root') except: pass clickhouse_pid = node1.get_process_pid("clickhouse server") time.sleep(1) time.sleep(1) # just for sure, that odbc-bridge caught signal bridge_pid = node1.get_process_pid("odbc-bridge") assert clickhouse_pid is None assert bridge_pid is None