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54 lines
1.3 KiB
Python
54 lines
1.3 KiB
Python
import time
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import pytest
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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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user_configs=[
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"configs/users.xml",
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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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def test_memory_usage():
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node.query("CREATE USER IF NOT EXISTS A")
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node.query("GRANT ALL ON *.* TO A")
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node.query(
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"CREATE TABLE async_table(data Array(UInt64)) ENGINE=MergeTree() ORDER BY data"
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)
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node.get_query_request("SELECT count() FROM system.numbers", user="A")
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INSERT_QUERY = "INSERT INTO async_table SETTINGS async_insert=1, wait_for_async_insert=1 VALUES ({})"
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for iter in range(10):
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values = list(range(iter * 5000000, (iter + 1) * 5000000))
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node.query(INSERT_QUERY.format(values), user="A")
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# Wait until buffers are freed
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time.sleep(5)
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response = node.get_query_request(
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"SELECT groupArray(number) FROM numbers(1000000) SETTINGS max_memory_usage_for_user={}".format(
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30 * (2**23)
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), user="A"
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)
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_, err = response.get_answer_and_error()
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assert err == "", "Query failed with error {}".format(err)
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node.query("DROP TABLE async_table")
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node.query("DROP USER IF EXISTS A")
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