ClickHouse/tests/integration/test_tmp_policy/test.py

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# pylint: disable=unused-argument
# pylint: disable=redefined-outer-name
import pytest
from helpers.cluster import ClickHouseCluster
cluster = ClickHouseCluster(__file__)
node = cluster.add_instance('node',
main_configs=["configs/config.d/storage_configuration.xml"],
tmpfs=['/disk1:size=100M', '/disk2:size=100M'])
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@pytest.fixture(scope='module')
def start_cluster():
try:
cluster.start()
yield cluster
finally:
cluster.shutdown()
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def test_different_versions(start_cluster):
query = 'SELECT count(ignore(*)) FROM (SELECT * FROM system.numbers LIMIT 1e7) GROUP BY number'
settings = {
'max_bytes_before_external_group_by': 1 << 20,
'max_bytes_before_external_sort': 1 << 20,
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}
assert node.contains_in_log('Setting up /disk1/ to store temporary data in it')
assert node.contains_in_log('Setting up /disk2/ to store temporary data in it')
node.query(query, settings=settings)
assert node.contains_in_log('Writing part of aggregation data into temporary file /disk1/')
assert node.contains_in_log('Writing part of aggregation data into temporary file /disk2/')