mirror of
https://github.com/ClickHouse/ClickHouse.git
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78 lines
2.3 KiB
Python
78 lines
2.3 KiB
Python
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import logging
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import time
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import os
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import pytest
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from helpers.cluster import ClickHouseCluster
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from helpers.mock_servers import start_s3_mock, start_mock_servers
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from helpers.utility import generate_values, replace_config, SafeThread
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SCRIPT_DIR = os.path.dirname(os.path.realpath(__file__))
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@pytest.fixture(scope="module")
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def cluster():
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try:
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cluster = ClickHouseCluster(__file__)
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cluster.add_instance(
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"node",
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main_configs=[
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"config.d/storage_conf.xml",
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],
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stay_alive=True,
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)
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logging.info("Starting cluster...")
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cluster.start()
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logging.info("Cluster started")
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yield cluster
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finally:
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cluster.shutdown()
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@pytest.mark.parametrize("node_name", ["node"])
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def test_parallel_cache_loading_on_startup(cluster, node_name):
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node = cluster.instances[node_name]
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node.query(
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"""
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DROP TABLE IF EXISTS test SYNC;
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CREATE TABLE test (key UInt32, value String)
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Engine=MergeTree()
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ORDER BY value
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SETTINGS disk = disk(
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type = cache,
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path = 'paralel_loading_test',
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disk = 'hdd_blob',
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max_file_segment_size = '1Ki',
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boundary_alignemt = '1Ki',
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max_size = '1Gi',
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max_elements = 10000000,
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load_metadata_threads = 30);
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SYSTEM DROP FILESYSTEM CACHE;
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INSERT INTO test SELECT * FROM generateRandom('a Int32, b String') LIMIT 1000000;
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SELECT * FROM test FORMAT Null;
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"""
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)
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assert int(node.query("SELECT count() FROM system.filesystem_cache")) > 0
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assert int(node.query("SELECT max(size) FROM system.filesystem_cache")) == 1024
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count = int(node.query("SELECT count() FROM test"))
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node.restart_clickhouse()
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assert node.contains_in_log("Loading filesystem cache with 30 threads")
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assert int(node.query("SELECT count() FROM system.filesystem_cache")) > 0
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assert int(node.query("SELECT max(size) FROM system.filesystem_cache")) == 1024
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assert (
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int(
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node.query(
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"SELECT value FROM system.events WHERE event = 'FilesystemCacheLoadMetadataMicroseconds'"
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)
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)
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> 0
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)
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node.query("SELECT * FROM test FORMAT Null")
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assert count == int(node.query("SELECT count() FROM test"))
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