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https://github.com/ClickHouse/ClickHouse.git
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274 lines
12 KiB
Python
274 lines
12 KiB
Python
import psycopg2
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import time
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from psycopg2.extensions import ISOLATION_LEVEL_AUTOCOMMIT
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postgres_table_template = """
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CREATE TABLE IF NOT EXISTS "{}" (
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key Integer NOT NULL, value Integer, PRIMARY KEY(key))
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"""
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postgres_table_template_2 = """
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CREATE TABLE IF NOT EXISTS "{}" (
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key Integer NOT NULL, value1 Integer, value2 Integer, value3 Integer, PRIMARY KEY(key))
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"""
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postgres_table_template_3 = """
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CREATE TABLE IF NOT EXISTS "{}" (
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key1 Integer NOT NULL, value1 Integer, key2 Integer NOT NULL, value2 Integer NOT NULL)
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"""
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postgres_table_template_4 = """
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CREATE TABLE IF NOT EXISTS "{}"."{}" (
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key Integer NOT NULL, value Integer, PRIMARY KEY(key))
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"""
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postgres_table_template_5 = """
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CREATE TABLE IF NOT EXISTS "{}" (
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key Integer NOT NULL, value UUID, PRIMARY KEY(key))
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"""
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def get_postgres_conn(ip, port, database=False, auto_commit=True, database_name='postgres_database', replication=False):
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if database == True:
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conn_string = f"host={ip} port={port} dbname='{database_name}' user='postgres' password='mysecretpassword'"
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else:
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conn_string = f"host={ip} port={port} user='postgres' password='mysecretpassword'"
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if replication:
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conn_string += " replication='database'"
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conn = psycopg2.connect(conn_string)
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if auto_commit:
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conn.set_isolation_level(ISOLATION_LEVEL_AUTOCOMMIT)
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conn.autocommit = True
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return conn
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def create_replication_slot(conn, slot_name='user_slot'):
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cursor = conn.cursor()
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cursor.execute(f'CREATE_REPLICATION_SLOT {slot_name} LOGICAL pgoutput EXPORT_SNAPSHOT')
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result = cursor.fetchall()
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print(result[0][0]) # slot name
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print(result[0][1]) # start lsn
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print(result[0][2]) # snapshot
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return result[0][2]
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def drop_replication_slot(conn, slot_name='user_slot'):
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cursor = conn.cursor()
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cursor.execute(f"select pg_drop_replication_slot('{slot_name}')")
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def create_postgres_schema(cursor, schema_name):
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drop_postgres_schema(cursor, schema_name)
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cursor.execute(f'CREATE SCHEMA {schema_name}')
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def drop_postgres_schema(cursor, schema_name):
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cursor.execute(f'DROP SCHEMA IF EXISTS {schema_name} CASCADE')
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def create_postgres_table(cursor, table_name, replica_identity_full=False, template=postgres_table_template):
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drop_postgres_table(cursor, table_name)
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cursor.execute(template.format(table_name))
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if replica_identity_full:
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cursor.execute(f'ALTER TABLE {table_name} REPLICA IDENTITY FULL;')
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def drop_postgres_table(cursor, table_name):
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cursor.execute(f"""DROP TABLE IF EXISTS "{table_name}" """)
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def create_postgres_table_with_schema(cursor, schema_name, table_name):
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drop_postgres_table_with_schema(cursor, schema_name, table_name)
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cursor.execute(postgres_table_template_4.format(schema_name, table_name))
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def drop_postgres_table_with_schema(cursor, schema_name, table_name):
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cursor.execute(f"""DROP TABLE IF EXISTS "{schema_name}"."{table_name}" """)
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class PostgresManager:
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def __init__(self):
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self.created_postgres_db_list = set()
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self.created_materialized_postgres_db_list = set()
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self.created_ch_postgres_db_list = set()
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def init(self, instance, ip, port):
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self.instance = instance
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self.ip = ip
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self.port = port
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self.conn = get_postgres_conn(ip=self.ip, port=self.port)
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self.prepare()
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def restart(self):
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try:
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self.clear()
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self.prepare()
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except Exception as ex:
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self.prepare()
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raise ex
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def prepare(self):
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conn = get_postgres_conn(ip=self.ip, port=self.port)
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cursor = conn.cursor()
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self.create_postgres_db(cursor, 'postgres_database')
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self.create_clickhouse_postgres_db(ip=self.ip, port=self.port)
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def clear(self):
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if self.conn.closed == 0:
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self.conn.close()
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for db in self.created_materialized_postgres_db_list.copy():
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self.drop_materialized_db(db);
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for db in self.created_ch_postgres_db_list.copy():
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self.drop_clickhouse_postgres_db(db)
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if len(self.created_postgres_db_list) > 0:
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conn = get_postgres_conn(ip=self.ip, port=self.port)
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cursor = conn.cursor()
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for db in self.created_postgres_db_list.copy():
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self.drop_postgres_db(cursor, db)
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def get_db_cursor(self):
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self.conn = get_postgres_conn(ip=self.ip, port=self.port, database=True)
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return self.conn.cursor()
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def create_postgres_db(self, cursor, name='postgres_database'):
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self.drop_postgres_db(cursor, name)
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self.created_postgres_db_list.add(name)
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cursor.execute(f"CREATE DATABASE {name}")
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def drop_postgres_db(self, cursor, name='postgres_database'):
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cursor.execute(f"DROP DATABASE IF EXISTS {name}")
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if name in self.created_postgres_db_list:
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self.created_postgres_db_list.remove(name)
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def create_clickhouse_postgres_db(self, ip, port, name='postgres_database', database_name='postgres_database', schema_name=''):
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self.drop_clickhouse_postgres_db(name)
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self.created_ch_postgres_db_list.add(name)
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if len(schema_name) == 0:
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self.instance.query(f'''
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CREATE DATABASE {name}
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ENGINE = PostgreSQL('{ip}:{port}', '{database_name}', 'postgres', 'mysecretpassword')''')
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else:
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self.instance.query(f'''
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CREATE DATABASE {name}
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ENGINE = PostgreSQL('{ip}:{port}', '{database_name}', 'postgres', 'mysecretpassword', '{schema_name}')''')
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def drop_clickhouse_postgres_db(self, name='postgres_database'):
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self.instance.query(f'DROP DATABASE IF EXISTS {name}')
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if name in self.created_ch_postgres_db_list:
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self.created_ch_postgres_db_list.remove(name)
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def create_materialized_db(self, ip, port,
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materialized_database='test_database', postgres_database='postgres_database',
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settings=[], table_overrides=''):
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self.created_materialized_postgres_db_list.add(materialized_database)
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self.instance.query(f"DROP DATABASE IF EXISTS {materialized_database}")
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create_query = f"CREATE DATABASE {materialized_database} ENGINE = MaterializedPostgreSQL('{ip}:{port}', '{postgres_database}', 'postgres', 'mysecretpassword')"
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if len(settings) > 0:
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create_query += " SETTINGS "
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for i in range(len(settings)):
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if i != 0:
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create_query += ', '
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create_query += settings[i]
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create_query += table_overrides
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self.instance.query(create_query)
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assert materialized_database in self.instance.query('SHOW DATABASES')
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def drop_materialized_db(self, materialized_database='test_database'):
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self.instance.query(f'DROP DATABASE IF EXISTS {materialized_database} NO DELAY')
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if materialized_database in self.created_materialized_postgres_db_list:
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self.created_materialized_postgres_db_list.remove(materialized_database)
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assert materialized_database not in self.instance.query('SHOW DATABASES')
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def create_and_fill_postgres_table(self, table_name):
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conn = get_postgres_conn(ip=self.ip, port=self.port, database=True)
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cursor = conn.cursor()
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self.create_and_fill_postgres_table_from_cursor(cursor, table_name)
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def create_and_fill_postgres_table_from_cursor(self, cursor, table_name):
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create_postgres_table(cursor, table_name);
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self.instance.query(f"INSERT INTO postgres_database.{table_name} SELECT number, number from numbers(50)")
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def create_and_fill_postgres_tables(self, tables_num, numbers=50):
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conn = get_postgres_conn(ip=self.ip, port=self.port, database=True)
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cursor = conn.cursor()
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self.create_and_fill_postgres_tables_from_cursor(cursor, tables_num, numbers=numbers)
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def create_and_fill_postgres_tables_from_cursor(self, cursor, tables_num, numbers=50):
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for i in range(tables_num):
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table_name = f'postgresql_replica_{i}'
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create_postgres_table(cursor, table_name);
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if numbers > 0:
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self.instance.query(f"INSERT INTO postgres_database.{table_name} SELECT number, number from numbers({numbers})")
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queries = [
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'INSERT INTO postgresql_replica_{} select i, i from generate_series(0, 10000) as t(i);',
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'DELETE FROM postgresql_replica_{} WHERE (value*value) % 3 = 0;',
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'UPDATE postgresql_replica_{} SET value = value - 125 WHERE key % 2 = 0;',
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"UPDATE postgresql_replica_{} SET key=key+20000 WHERE key%2=0",
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'INSERT INTO postgresql_replica_{} select i, i from generate_series(40000, 50000) as t(i);',
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'DELETE FROM postgresql_replica_{} WHERE key % 10 = 0;',
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'UPDATE postgresql_replica_{} SET value = value + 101 WHERE key % 2 = 1;',
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"UPDATE postgresql_replica_{} SET key=key+80000 WHERE key%2=1",
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'DELETE FROM postgresql_replica_{} WHERE value % 2 = 0;',
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'UPDATE postgresql_replica_{} SET value = value + 2000 WHERE key % 5 = 0;',
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'INSERT INTO postgresql_replica_{} select i, i from generate_series(200000, 250000) as t(i);',
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'DELETE FROM postgresql_replica_{} WHERE value % 3 = 0;',
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'UPDATE postgresql_replica_{} SET value = value * 2 WHERE key % 3 = 0;',
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"UPDATE postgresql_replica_{} SET key=key+500000 WHERE key%2=1",
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'INSERT INTO postgresql_replica_{} select i, i from generate_series(1000000, 1050000) as t(i);',
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'DELETE FROM postgresql_replica_{} WHERE value % 9 = 2;',
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"UPDATE postgresql_replica_{} SET key=key+10000000",
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'UPDATE postgresql_replica_{} SET value = value + 2 WHERE key % 3 = 1;',
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'DELETE FROM postgresql_replica_{} WHERE value%5 = 0;'
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]
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def assert_nested_table_is_created(instance, table_name, materialized_database='test_database', schema_name=''):
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if len(schema_name) == 0:
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table = table_name
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else:
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table = schema_name + "." + table_name
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print(f'Checking table {table} exists in {materialized_database}')
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database_tables = instance.query(f'SHOW TABLES FROM {materialized_database}')
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while table not in database_tables:
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time.sleep(0.2)
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database_tables = instance.query(f'SHOW TABLES FROM {materialized_database}')
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assert(table in database_tables)
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def assert_number_of_columns(instance, expected, table_name, database_name='test_database'):
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result = instance.query(f"select count() from system.columns where table = '{table_name}' and database = '{database_name}' and not startsWith(name, '_')")
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while (int(result) != expected):
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time.sleep(1)
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result = instance.query(f"select count() from system.columns where table = '{table_name}' and database = '{database_name}' and not startsWith(name, '_')")
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print('Number of columns ok')
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def check_tables_are_synchronized(instance, table_name, order_by='key', postgres_database='postgres_database', materialized_database='test_database', schema_name=''):
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assert_nested_table_is_created(instance, table_name, materialized_database, schema_name)
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table_path = ''
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if len(schema_name) == 0:
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table_path = f'{materialized_database}.{table_name}'
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else:
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table_path = f'{materialized_database}.`{schema_name}.{table_name}`'
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print(f"Checking table is synchronized: {table_path}")
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result_query = f'select * from {table_path} order by {order_by};'
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expected = instance.query(f'select * from {postgres_database}.{table_name} order by {order_by};')
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result = instance.query(result_query)
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for _ in range(30):
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if result == expected:
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break
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else:
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time.sleep(0.5)
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result = instance.query(result_query)
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assert(result == expected)
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def check_several_tables_are_synchronized(instance, tables_num, order_by='key', postgres_database='postgres_database', materialized_database='test_database', schema_name=''):
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for i in range(tables_num):
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check_tables_are_synchronized(instance, f'postgresql_replica_{i}');
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