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43 lines
1.2 KiB
Python
43 lines
1.2 KiB
Python
# pylint: disable=unused-argument
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# pylint: disable=redefined-outer-name
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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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main_configs=["configs/config.d/storage_configuration.xml"],
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tmpfs=["/disk1:size=100M", "/disk2:size=100M"],
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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_disk_selection(start_cluster):
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query = "SELECT count(ignore(*)) FROM (SELECT * FROM system.numbers LIMIT 1e7) GROUP BY number"
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settings = {
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"max_bytes_before_external_group_by": 1 << 20,
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"max_bytes_before_external_sort": 1 << 20,
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}
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assert node.contains_in_log("Setting up /disk1/ to store temporary data in it")
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assert node.contains_in_log("Setting up /disk2/ to store temporary data in it")
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node.query(query, settings=settings)
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assert node.contains_in_log(
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"Writing part of aggregation data into temporary file /disk1/"
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)
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assert node.contains_in_log(
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"Writing part of aggregation data into temporary file /disk2/"
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)
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