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70 lines
2.1 KiB
Python
70 lines
2.1 KiB
Python
import pytest
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from helpers.cluster import ClickHouseCluster
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cluster = ClickHouseCluster(__file__)
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node1 = cluster.add_instance("node1", stay_alive=True)
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node2 = cluster.add_instance("node2", stay_alive=True)
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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 run_cpu_intensive_task(node):
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node.query(
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"SELECT sum(*) FROM system.numbers_mt FORMAT Null SETTINGS max_execution_time=10",
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ignore_error=True,
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)
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def get_async_metric(node, metric):
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node.query("SYSTEM FLUSH LOGS")
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return node.query(
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f"""
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SELECT max(value)
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FROM (
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SELECT toStartOfInterval(event_time, toIntervalSecond(1)) AS t, avg(value) AS value
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FROM system.asynchronous_metric_log
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WHERE event_time >= now() - 60 AND metric = '{metric}'
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GROUP BY t
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)
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SETTINGS max_threads = 1
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"""
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).strip("\n")
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def test_user_cpu_accounting(start_cluster):
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if node1.is_built_with_sanitizer():
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pytest.skip("Disabled for sanitizers")
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# run query on the other node, its usage shouldn't be accounted by node1
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run_cpu_intensive_task(node2)
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node1_cpu_time = get_async_metric(node1, "OSUserTime")
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assert float(node1_cpu_time) < 2
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# then let's test that we will account cpu time spent by the server itself
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node2_cpu_time = get_async_metric(node2, "OSUserTime")
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# this check is really weak, but CI is tough place and we cannot guarantee that test process will get many cpu time
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assert float(node2_cpu_time) > 2
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def test_normalized_user_cpu(start_cluster):
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if node1.is_built_with_sanitizer():
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pytest.skip("Disabled for sanitizers")
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# run query on the other node, its usage shouldn't be accounted by node1
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run_cpu_intensive_task(node2)
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node1_cpu_time = get_async_metric(node1, "OSUserTimeNormalized")
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assert float(node1_cpu_time) < 1.01
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node2_cpu_time = get_async_metric(node2, "OSUserTimeNormalized")
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assert float(node2_cpu_time) < 1.01
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