mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-09-20 08:40:50 +00:00
275 lines
9.4 KiB
Python
275 lines
9.4 KiB
Python
import pytest
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import helpers.client
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import helpers.cluster
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import time
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from helpers.corrupt_part_data_on_disk import corrupt_part_data_on_disk
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cluster = helpers.cluster.ClickHouseCluster(__file__)
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node1 = cluster.add_instance(
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"node1",
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main_configs=["configs/fast_background_pool.xml", "configs/compat.xml"],
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with_zookeeper=True,
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stay_alive=True,
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)
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node2 = cluster.add_instance(
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"node2",
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main_configs=["configs/fast_background_pool.xml"],
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with_zookeeper=True,
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stay_alive=True,
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)
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node3 = cluster.add_instance(
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"node3",
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with_zookeeper=True,
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stay_alive=True,
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)
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@pytest.fixture(scope="module")
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def started_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_merge_tree_load_parts(started_cluster):
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node1.query(
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"""
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CREATE TABLE mt_load_parts (pk UInt32, id UInt32, s String)
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ENGINE = MergeTree ORDER BY id PARTITION BY pk"""
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)
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node1.query("SYSTEM STOP MERGES mt_load_parts")
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for i in range(20):
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node1.query(
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f"INSERT INTO mt_load_parts VALUES (44, {i}, randomPrintableASCII(10))"
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)
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node1.restart_clickhouse(kill=True)
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for i in range(1, 21):
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assert node1.contains_in_log(f"Loading Active part 44_{i}_{i}_0")
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node1.query("OPTIMIZE TABLE mt_load_parts FINAL")
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node1.restart_clickhouse(kill=True)
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node1.query("SYSTEM WAIT LOADING PARTS mt_load_parts")
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assert node1.contains_in_log("Loading Active part 44_1_20")
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for i in range(1, 21):
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assert not node1.contains_in_log(f"Loading Active part 44_{i}_{i}_0")
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assert node1.contains_in_log(f"Loading Outdated part 44_{i}_{i}_0")
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assert node1.query("SELECT count() FROM mt_load_parts") == "20\n"
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assert (
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node1.query(
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"SELECT count() FROM system.parts WHERE table = 'mt_load_parts' AND active"
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)
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== "1\n"
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)
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node1.query("ALTER TABLE mt_load_parts MODIFY SETTING old_parts_lifetime = 1")
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node1.query("DETACH TABLE mt_load_parts")
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node1.query("ATTACH TABLE mt_load_parts")
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node1.query("SYSTEM WAIT LOADING PARTS mt_load_parts")
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table_path = node1.query(
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"SELECT data_paths[1] FROM system.tables WHERE table = 'mt_load_parts'"
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).strip()
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part_dirs = node1.exec_in_container(["bash", "-c", f"ls {table_path}"], user="root")
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part_dirs = list(
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set(part_dirs.strip().split("\n")) - {"detached", "format_version.txt"}
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)
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MAX_RETRY = 10
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part_dirs_ok = False
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for _ in range(MAX_RETRY):
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part_dirs = node1.exec_in_container(
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["bash", "-c", f"ls {table_path}"], user="root"
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)
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part_dirs = list(
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set(part_dirs.strip().split("\n")) - {"detached", "format_version.txt"}
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)
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part_dirs_ok = len(part_dirs) == 1 and part_dirs[0].startswith("44_1_20")
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if part_dirs_ok:
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break
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time.sleep(2)
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assert part_dirs_ok
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def test_merge_tree_load_parts_corrupted(started_cluster):
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for i, node in enumerate([node1, node2]):
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node.query(
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f"""
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CREATE TABLE mt_load_parts_2 (pk UInt32, id UInt32, s String)
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ENGINE = ReplicatedMergeTree('/clickhouse/tables/0/mt_load_parts_2', '{i}') ORDER BY id PARTITION BY pk"""
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)
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"""min-max blocks in created parts: 1_1_0, 2_2_0, 1_2_1, 3_3_0, 1_3_2"""
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for partition in [111, 222, 333]:
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node1.query(
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f"INSERT INTO mt_load_parts_2 VALUES ({partition}, 0, randomPrintableASCII(10))"
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)
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node1.query(
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f"INSERT INTO mt_load_parts_2 VALUES ({partition}, 1, randomPrintableASCII(10))"
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)
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node1.query(f"OPTIMIZE TABLE mt_load_parts_2 PARTITION {partition} FINAL")
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node1.query(
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f"INSERT INTO mt_load_parts_2 VALUES ({partition}, 2, randomPrintableASCII(10))"
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)
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node1.query(f"OPTIMIZE TABLE mt_load_parts_2 PARTITION {partition} FINAL")
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node2.query("SYSTEM SYNC REPLICA mt_load_parts_2", timeout=30)
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def get_part_name(node, partition, min_block, max_block):
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return node.query(
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f"""
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SELECT name FROM system.parts
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WHERE table = 'mt_load_parts_2'
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AND partition = '{partition}'
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AND min_block_number = {min_block}
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AND max_block_number = {max_block}"""
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).strip()
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corrupt_part_data_on_disk(node1, "mt_load_parts_2", get_part_name(node1, 111, 0, 2))
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corrupt_part_data_on_disk(node1, "mt_load_parts_2", get_part_name(node1, 222, 0, 2))
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corrupt_part_data_on_disk(node1, "mt_load_parts_2", get_part_name(node1, 222, 0, 1))
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corrupt_part_data_on_disk(node1, "mt_load_parts_2", get_part_name(node1, 333, 0, 1))
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corrupt_part_data_on_disk(node1, "mt_load_parts_2", get_part_name(node1, 333, 2, 2))
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node1.restart_clickhouse(kill=True)
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node1.query("SYSTEM WAIT LOADING PARTS mt_load_parts_2")
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def check_parts_loading(node, partition, loaded, failed, skipped):
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# The whole test produces around 6-700 lines, so 2k is plenty enough.
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# wait_for_log_line uses tail + grep, so the overhead is negligible
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look_behind_lines = 2000
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for min_block, max_block in loaded:
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part_name = f"{partition}_{min_block}_{max_block}"
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assert node.wait_for_log_line(
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f"Loading Active part {part_name}", look_behind_lines=look_behind_lines
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)
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assert node.wait_for_log_line(
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f"Finished loading Active part {part_name}",
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look_behind_lines=look_behind_lines,
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)
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failed_part_names = []
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# Let's wait until there is some information about all expected parts, and only
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# check the absence of not expected log messages after all expected logs are present
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for min_block, max_block in failed:
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part_name = f"{partition}_{min_block}_{max_block}"
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failed_part_names.append(part_name)
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assert node.wait_for_log_line(
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f"Loading Active part {part_name}", look_behind_lines=look_behind_lines
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)
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for failed_part_name in failed_part_names:
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assert not node.contains_in_log(
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f"Finished loading Active part {failed_part_name}"
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)
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for min_block, max_block in skipped:
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part_name = f"{partition}_{min_block}_{max_block}"
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assert not node.contains_in_log(f"Loading Active part {part_name}")
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assert not node.contains_in_log(f"Finished loading Active part {part_name}")
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check_parts_loading(
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node1, 111, loaded=[(0, 1), (2, 2)], failed=[(0, 2)], skipped=[(0, 0), (1, 1)]
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)
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check_parts_loading(
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node1, 222, loaded=[(0, 0), (1, 1), (2, 2)], failed=[(0, 2), (0, 1)], skipped=[]
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)
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check_parts_loading(
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node1, 333, loaded=[(0, 2)], failed=[], skipped=[(0, 0), (1, 1), (2, 2), (0, 1)]
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)
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node1.query("SYSTEM SYNC REPLICA mt_load_parts_2", timeout=30)
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node1.query("OPTIMIZE TABLE mt_load_parts_2 FINAL")
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node1.query("SYSTEM SYNC REPLICA mt_load_parts_2", timeout=30)
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assert (
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node1.query(
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"""
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SELECT pk, count() FROM mt_load_parts_2
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GROUP BY pk ORDER BY pk"""
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)
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== "111\t3\n222\t3\n333\t3\n"
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)
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assert (
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node1.query(
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"""
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SELECT partition, count()
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FROM system.parts WHERE table = 'mt_load_parts_2' AND active
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GROUP BY partition ORDER BY partition"""
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)
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== "111\t1\n222\t1\n333\t1\n"
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)
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def test_merge_tree_load_parts_filesystem_error(started_cluster):
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if node3.is_built_with_sanitizer() or node3.is_debug_build():
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pytest.skip(
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"Skip with debug build and sanitizers. \
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This test intentionally triggers LOGICAL_ERROR which leads to crash with those builds"
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)
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node3.query(
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"""
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CREATE TABLE mt_load_parts (id UInt32)
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ENGINE = MergeTree ORDER BY id
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SETTINGS index_granularity_bytes = 0"""
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)
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node3.query("SYSTEM STOP MERGES mt_load_parts")
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for i in range(2):
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node3.query(f"INSERT INTO mt_load_parts VALUES ({i})")
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# We want to somehow check that exception thrown on part creation is handled during part loading.
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# It can be a filesystem exception triggered at initialization of part storage but it hard
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# to trigger it because it should be an exception on stat/listDirectory.
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# The most easy way to trigger such exception is to use chmod but clickhouse server
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# is run with root user in integration test and this won't work. So let's do
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# some stupid things: create a table without adaptive granularity and change mark
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# extensions of data files in part to make clickhouse think that it's a compact part which
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# cannot be created in such table. This will trigger a LOGICAL_ERROR on part creation.
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def corrupt_part(table, part_name):
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part_path = node3.query(
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"SELECT path FROM system.parts WHERE table = '{}' and name = '{}'".format(
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table, part_name
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)
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).strip()
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node3.exec_in_container(
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["bash", "-c", f"mv {part_path}id.cmrk {part_path}id.cmrk3"],
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privileged=True,
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)
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corrupt_part("mt_load_parts", "all_1_1_0")
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node3.restart_clickhouse(kill=True)
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assert node3.query("SELECT * FROM mt_load_parts") == "1\n"
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assert (
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node3.query(
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"SELECT name FROM system.detached_parts WHERE table = 'mt_load_parts'"
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)
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== "broken-on-start_all_1_1_0\n"
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)
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