ClickHouse/tests/integration/test_merges_memory_limit/test.py
2023-05-03 01:33:26 +02:00

40 lines
1.4 KiB
Python

import pytest
from helpers.cluster import ClickHouseCluster
cluster = ClickHouseCluster(__file__)
node = cluster.add_instance("node")
@pytest.fixture(scope="module", autouse=True)
def start_cluster():
try:
cluster.start()
yield cluster
finally:
cluster.shutdown()
def test_memory_limit_success():
node.query(
"CREATE TABLE test_merge_oom ENGINE=AggregatingMergeTree ORDER BY id EMPTY AS SELECT number%1024 AS id, arrayReduce( 'groupArrayState', arrayMap( x-> randomPrintableASCII(100), range(8192))) fat_state FROM numbers(20000)"
)
node.query("SYSTEM STOP MERGES test_merge_oom")
node.query(
"INSERT INTO test_merge_oom SELECT number%1024 AS id, arrayReduce( 'groupArrayState', arrayMap( x-> randomPrintableASCII(100), range(8192))) fat_state FROM numbers(3000)"
)
node.query(
"INSERT INTO test_merge_oom SELECT number%1024 AS id, arrayReduce( 'groupArrayState', arrayMap( x-> randomPrintableASCII(100), range(8192))) fat_state FROM numbers(3000)"
)
node.query(
"INSERT INTO test_merge_oom SELECT number%1024 AS id, arrayReduce( 'groupArrayState', arrayMap( x-> randomPrintableASCII(100), range(8192))) fat_state FROM numbers(3000)"
)
_, error = node.query_and_get_answer_with_error(
"SYSTEM START MERGES test_merge_oom;SET optimize_throw_if_noop=1;OPTIMIZE TABLE test_merge_oom FINAL"
)
assert not error
node.query("DROP TABLE test_merge_oom")