mirror of
https://github.com/ClickHouse/ClickHouse.git
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58 lines
1.4 KiB
Python
58 lines
1.4 KiB
Python
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# pylint: disable=unused-argument
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# pylint: disable=redefined-outer-name
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import pytest
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import time
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from helpers.cluster import ClickHouseCluster
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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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)
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@pytest.fixture(scope="module")
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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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def test_tmp_data_no_leftovers(start_cluster):
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q = node.get_query_request
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settings = {
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"max_bytes_before_external_group_by": "10K",
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"max_bytes_before_external_sort": "10K",
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"join_algorithm": "grace_hash",
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"max_bytes_in_join": "10K",
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"grace_hash_join_initial_buckets": "16",
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}
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# Run some queries in the background to generate temporary data
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q(
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"SELECT ignore(*) FROM numbers(10 * 1024 * 1024) ORDER BY sipHash64(number)",
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settings=settings,
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)
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q("SELECT * FROM system.numbers GROUP BY ALL", settings=settings)
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q(
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"SELECT * FROM system.numbers as t1 JOIN system.numbers as t2 USING (number)",
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settings=settings,
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)
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# Wait a bit to make sure the temporary data is written to disk
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time.sleep(5)
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# Hard restart the node
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node.restart_clickhouse(kill=True)
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path_to_data = "/var/lib/clickhouse/"
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# Check that there are no temporary files left
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result = node.exec_in_container(["ls", path_to_data + "tmp/"])
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assert result == ""
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