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https://github.com/ClickHouse/ClickHouse.git
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55 lines
1.1 KiB
Python
55 lines
1.1 KiB
Python
#!/usr/bin/env python3
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import logging
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import time
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import pytest
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from helpers.cluster import ClickHouseCluster
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from multiprocessing.dummy import Pool
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cluster = ClickHouseCluster(__file__)
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node = cluster.add_instance(
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"node",
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main_configs=[
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"configs/async_metrics_no.xml",
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],
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mem_limit="4g",
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env_variables={"MALLOC_CONF": "dirty_decay_ms:0"},
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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_multiple_queries():
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if node.is_built_with_sanitizer():
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return
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p = Pool(15)
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def run_query(node):
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try:
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node.query("SELECT * FROM system.numbers GROUP BY number")
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except Exception as ex:
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print("Exception", ex)
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raise ex
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tasks = []
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for i in range(30):
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tasks.append(p.apply_async(run_query, (node,)))
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time.sleep(i * 0.1)
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for task in tasks:
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try:
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task.get()
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except Exception as ex:
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print("Exception", ex)
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# test that we didn't kill the server
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node.query("SELECT 1")
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