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223 lines
5.3 KiB
Python
223 lines
5.3 KiB
Python
import time
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import pytest
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import logging
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from contextlib import contextmanager
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from helpers.cluster import ClickHouseCluster
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from helpers.test_tools import assert_eq_with_retry
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logger = logging.getLogger(__name__)
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logger.setLevel(logging.DEBUG)
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cluster = ClickHouseCluster(__file__)
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node = cluster.add_instance(
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"node",
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stay_alive=True,
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with_zookeeper=False,
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main_configs=[
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"configs/keeper.xml",
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"configs/transactions.xml",
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],
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)
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@pytest.fixture(scope="module", autouse=True)
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def start_cluster():
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try:
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cluster.start()
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yield cluster
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finally:
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cluster.shutdown()
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@pytest.fixture(scope="function")
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def test_name(request):
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return request.node.name
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@pytest.fixture(scope="function")
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def exclusive_table(test_name):
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normalized = (
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test_name.replace("[", "_")
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.replace("]", "_")
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.replace(" ", "_")
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.replace("-", "_")
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)
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return "table_" + normalized
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def get_event_select_count():
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return int(
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node.query(
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"""
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SELECT value FROM system.events WHERE event = 'SelectQuery';
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"""
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)
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)
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def get_query_processes_count(query_id):
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q = f"""
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SELECT count() FROM system.processes WHERE query_id = '{query_id}';
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"""
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return q
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def is_query_running(query_id):
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return 1 == int(node.query(get_query_processes_count(query_id)))
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def wait_select_start(query_id):
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assert_eq_with_retry(
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node,
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get_query_processes_count(query_id),
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"1\n",
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)
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LOCK_FREE_QUERIES = {
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"detach table": "DETACH TABLE {table};",
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"drop part": "ALTER TABLE {table} DROP PART 'all_1_1_0';",
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"detach part": "ALTER TABLE {table} DETACH PART 'all_1_1_0';",
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"truncate": "TRUNCATE TABLE {table};",
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}
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@pytest.mark.parametrize(
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"lock_free_query", LOCK_FREE_QUERIES.values(), ids=LOCK_FREE_QUERIES.keys()
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)
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def test_query_is_lock_free(lock_free_query, exclusive_table):
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node.query(
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f"""
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CREATE TABLE {exclusive_table}
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(a Int64)
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Engine=MergeTree ORDER BY a;
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"""
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)
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node.query(
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f"""
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INSERT INTO {exclusive_table} SELECT number FROM numbers(50);
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"""
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)
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query_id = "select-" + exclusive_table
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select_handler = node.get_query_request(
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f"""
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SELECT sleepEachRow(3) FROM {exclusive_table};
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""",
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query_id=query_id,
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)
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wait_select_start(query_id)
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for _ in [1, 2, 3, 4, 5]:
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assert is_query_running(query_id)
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assert select_handler.process.poll() is None
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time.sleep(1)
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node.query(lock_free_query.format(table=exclusive_table))
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assert is_query_running(query_id)
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if "DETACH TABLE" in lock_free_query:
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result = node.query_and_get_error(
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f"""
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SELECT count() FROM {exclusive_table};
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"""
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)
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assert f"Table default.{exclusive_table} doesn't exist" in result
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else:
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assert 0 == int(
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node.query(
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f"""
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SELECT count() FROM {exclusive_table};
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"""
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)
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)
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PERMANENT_QUERIES = {
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"truncate": ("TRUNCATE TABLE {table};", 0),
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"detach-partition-all": ("ALTER TABLE {table} DETACH PARTITION ALL;", 0),
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"detach-part": ("ALTER TABLE {table} DETACH PARTITION '20221001';", 49),
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"drop-part": ("ALTER TABLE {table} DROP PART '20220901_1_1_0';", 49),
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}
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@pytest.mark.parametrize(
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"transaction", ["NoTx", "TxCommit", "TxRollback", "TxNotFinished"]
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)
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@pytest.mark.parametrize(
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"permanent", PERMANENT_QUERIES.values(), ids=PERMANENT_QUERIES.keys()
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)
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def test_query_is_permanent(transaction, permanent, exclusive_table):
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node.query(
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f"""
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CREATE TABLE {exclusive_table}
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(
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a Int64,
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date Date
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)
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Engine=MergeTree
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PARTITION BY date
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ORDER BY a;
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"""
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)
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node.query(
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f"""
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INSERT INTO {exclusive_table} SELECT number, toDate('2022-09-01') + INTERVAL number DAY FROM numbers(50);
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"""
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)
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query_id = "select-" + exclusive_table
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select_handler = node.get_query_request(
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f"""
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SELECT sleepEachRow(3) FROM {exclusive_table};
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""",
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query_id=query_id,
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)
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wait_select_start(query_id)
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for _ in [1, 2, 3, 4, 5]:
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assert is_query_running(query_id)
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assert select_handler.process.poll() is None
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time.sleep(1)
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permanent_query = permanent[0]
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result = permanent[1]
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statement = permanent_query.format(table=exclusive_table)
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if transaction == "TxCommit":
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query = f"""
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BEGIN TRANSACTION;
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{statement}
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COMMIT;
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"""
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elif transaction == "TxRollback":
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query = f"""
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BEGIN TRANSACTION;
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{statement}
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ROLLBACK;
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"""
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result = 50
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elif transaction == "TxNotFinished":
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query = f"""
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BEGIN TRANSACTION;
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{statement}
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"""
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result = 50
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else:
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query = statement
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node.query(query)
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node.restart_clickhouse(kill=True)
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assert result == int(
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node.query(
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f"""
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SELECT count() FROM {exclusive_table};
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"""
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)
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)
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