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https://github.com/ClickHouse/ClickHouse.git
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585 lines
17 KiB
Python
585 lines
17 KiB
Python
import time
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import pytest
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import logging
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import string
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import random
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from helpers.cluster import ClickHouseCluster
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cluster = ClickHouseCluster(__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=["config.d/backups.xml"],
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stay_alive=True,
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with_zookeeper=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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def create_table(node, table, replica, data_prefix="", aggressive_merge=True):
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if data_prefix == "":
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data_prefix = table
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if aggressive_merge:
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vertical_merge_algorithm_min_rows_to_activate = 1
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vertical_merge_algorithm_min_columns_to_activate = 1
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max_parts_to_merge_at_once = 3
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else:
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vertical_merge_algorithm_min_rows_to_activate = 100000
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vertical_merge_algorithm_min_columns_to_activate = 100
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max_parts_to_merge_at_once = 3
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node.query(
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f"""
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DROP TABLE IF EXISTS {table} SYNC;
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CREATE TABLE {table}
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(
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a String,
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b String,
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c Int64,
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d Int64,
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e Int64,
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PROJECTION proj1
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(
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SELECT c ORDER BY d
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),
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PROJECTION proj2
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(
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SELECT d ORDER BY c
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)
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)
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ENGINE = ReplicatedMergeTree('/test_broken_projection_{data_prefix}/data/', '{replica}') ORDER BY a
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SETTINGS min_bytes_for_wide_part = 0,
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max_parts_to_merge_at_once={max_parts_to_merge_at_once},
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enable_vertical_merge_algorithm=0,
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vertical_merge_algorithm_min_rows_to_activate = {vertical_merge_algorithm_min_rows_to_activate},
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vertical_merge_algorithm_min_columns_to_activate = {vertical_merge_algorithm_min_columns_to_activate},
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compress_primary_key=0;
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"""
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)
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def insert(node, table, offset, size):
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node.query(
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f"""
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INSERT INTO {table}
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SELECT number, number, number, number, number%2 FROM numbers({offset}, {size})
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SETTINGS insert_keeper_fault_injection_probability=0.0;
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"""
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)
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def get_parts(node, table):
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return (
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node.query(
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f"""
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SELECT name
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FROM system.parts
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WHERE table='{table}' AND database=currentDatabase() AND active = 1
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ORDER BY name;"
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"""
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)
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.strip()
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.split("\n")
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)
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def bash(node, command):
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node.exec_in_container(["bash", "-c", command], privileged=True, user="root")
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def break_projection(node, table, part, parent_part, break_type):
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part_path = node.query(
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f"""
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SELECT path
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FROM system.projection_parts
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WHERE table='{table}'
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AND database=currentDatabase()
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AND active=1
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AND part_name='{part}'
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AND parent_name='{parent_part}'
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ORDER BY modification_time DESC
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LIMIT 1;
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"""
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).strip()
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node.query(
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f"select throwIf(substring('{part_path}', 1, 1) != '/', 'Path is relative: {part_path}')"
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)
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if break_type == "data":
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bash(node, f"rm '{part_path}/d.bin'")
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bash(node, f"rm '{part_path}/c.bin'")
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elif break_type == "metadata":
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bash(node, f"rm '{part_path}/columns.txt'")
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elif break_type == "part":
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bash(node, f"rm -r '{part_path}'")
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def break_part(node, table, part):
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part_path = node.query(
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f"""
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SELECT path
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FROM system.parts
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WHERE table='{table}'
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AND database=currentDatabase()
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AND active=1
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AND part_name='{part}'
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ORDER BY modification_time DESC
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LIMIT 1;
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"""
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).strip()
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node.query(
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f"select throwIf(substring('{part_path}', 1, 1) != '/', 'Path is relative: {part_path}')"
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)
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bash(node, f"rm '{part_path}/columns.txt'")
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def get_broken_projections_info(node, table):
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return node.query(
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f"""
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SELECT parent_name, name, errors.name FROM
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(
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SELECT parent_name, name, exception_code
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FROM system.projection_parts
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WHERE table='{table}'
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AND database=currentDatabase()
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AND is_broken = 1
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) AS parts_info
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INNER JOIN system.errors AS errors
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ON parts_info.exception_code = errors.code
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ORDER BY parent_name, name
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"""
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).strip()
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def get_projections_info(node, table):
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return node.query(
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f"""
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SELECT parent_name, name, is_broken
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FROM system.projection_parts
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WHERE table='{table}'
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AND active = 1
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AND database=currentDatabase()
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ORDER BY parent_name, name
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"""
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).strip()
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def optimize(node, table, final, no_wait):
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query = f"OPTIMIZE TABLE {table}"
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if final:
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query += " FINAL"
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if no_wait:
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query += " SETTINGS alter_sync=0"
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node.query(query)
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def reattach(node, table):
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node.query(
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f"""
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DETACH TABLE {table};
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ATTACH TABLE {table};
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"""
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)
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def materialize_projection(node, table, proj):
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node.query(
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f"ALTER TABLE {table} MATERIALIZE PROJECTION {proj} SETTINGS mutations_sync=2"
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)
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def check_table_full(node, table):
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return node.query(
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f"CHECK TABLE {table} SETTINGS check_query_single_value_result = 0;"
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).strip()
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def random_str(length=6):
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alphabet = string.ascii_lowercase + string.digits
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return "".join(random.SystemRandom().choice(alphabet) for _ in range(length))
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def check(node, table, check_result, expect_broken_part="", expected_error=""):
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query_id = random_str()
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if expect_broken_part == "proj1":
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assert expected_error in node.query_and_get_error(
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f"SELECT c FROM '{table}' WHERE d == 12 ORDER BY c"
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)
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else:
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node.query(
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f"SELECT c FROM '{table}' WHERE d == 12 ORDER BY c",
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query_id=query_id,
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)
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time.sleep(2)
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node.query("SYSTEM FLUSH LOGS")
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res = node.query(
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f"""
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SELECT query, splitByChar('.', arrayJoin(projections))[-1]
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FROM system.query_log
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WHERE query_id='{query_id}' AND type='QueryFinish'
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"""
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)
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if res == "":
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res = node.query(
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"""
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SELECT query, splitByChar('.', arrayJoin(projections))[-1]
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FROM system.query_log
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"""
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)
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print(res)
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assert False
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assert "proj1" in res
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query_id = random_str()
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if expect_broken_part == "proj2":
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assert expected_error in node.query_and_get_error(
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f"SELECT d FROM '{table}' WHERE c == 12 ORDER BY d"
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)
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else:
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node.query(
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f"SELECT d FROM '{table}' WHERE c == 12 OR c == 16 ORDER BY d",
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query_id=query_id,
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)
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time.sleep(2)
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node.query("SYSTEM FLUSH LOGS")
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res = node.query(
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f"""
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SELECT query, splitByChar('.', arrayJoin(projections))[-1]
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FROM system.query_log
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WHERE query_id='{query_id}' AND type='QueryFinish'
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"""
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)
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if res == "":
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res = node.query(
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"""
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SELECT query, splitByChar('.', arrayJoin(projections))[-1]
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FROM system.query_log
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"""
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)
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print(res)
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assert False
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assert "proj2" in res
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assert check_result == int(node.query(f"CHECK TABLE {table}"))
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def test_broken_ignored(cluster):
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node = cluster.instances["node"]
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table_name = "test1"
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create_table(node, table_name, 1)
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insert(node, table_name, 0, 5)
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insert(node, table_name, 5, 5)
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insert(node, table_name, 10, 5)
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insert(node, table_name, 15, 5)
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assert ["all_0_0_0", "all_1_1_0", "all_2_2_0", "all_3_3_0"] == get_parts(
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node, table_name
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)
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# Break metadata (columns.txt) file of projection 'proj1'
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break_projection(node, table_name, "proj1", "all_2_2_0", "metadata")
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# Do select and after "check table" query.
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# Select works because it does not read columns.txt.
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# But expect check table result as 0.
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check(node, table_name, 0)
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# Projection 'proj1' from part all_2_2_0 will now appear in broken parts info
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# because it was marked broken during "check table" query.
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assert "all_2_2_0\tproj1\tFILE_DOESNT_EXIST" in get_broken_projections_info(
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node, table_name
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)
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# Check table query will also show a list of parts which have broken projections.
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assert "all_2_2_0" in check_table_full(node, table_name)
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# Break data file of projection 'proj2' for part all_2_2_0
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break_projection(node, table_name, "proj2", "all_2_2_0", "data")
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# It will not yet appear in broken projections info.
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assert "proj2" not in get_broken_projections_info(node, table_name)
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# Select now fails with error "File doesn't exist"
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check(node, table_name, 0, "proj2", "FILE_DOESNT_EXIST")
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# Projection 'proj2' from part all_2_2_0 will now appear in broken parts info.
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assert "all_2_2_0\tproj2\tNO_FILE_IN_DATA_PART" in get_broken_projections_info(
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node, table_name
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)
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# Second select works, because projection is now marked as broken.
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check(node, table_name, 0)
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# Break data file of projection 'proj2' for part all_3_3_0
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break_projection(node, table_name, "proj2", "all_3_3_0", "data")
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# It will not yet appear in broken projections info.
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assert "all_3_3_0" not in get_broken_projections_info(node, table_name)
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insert(node, table_name, 20, 5)
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insert(node, table_name, 25, 5)
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# Part all_3_3_0 has 'proj' and 'proj2' projections, but 'proj2' is broken and server does NOT know it yet.
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# Parts all_4_4_0 and all_5_5_0 have both non-broken projections.
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# So a merge will be create for future part all_3_5_1.
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# During merge it will fail to read from 'proj2' of part all_3_3_0 and proj2 will be marked broken.
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# Merge will be retried and on second attempt it will succeed.
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# The result part all_3_5_1 will have only 1 projection - 'proj', because
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# it will skip 'proj2' as it will see that one part does not have it anymore in the set of valid projections.
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optimize(node, table_name, 0, 1)
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time.sleep(5)
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# table_uuid=node.query(f"SELECT uuid FROM system.tables WHERE table='{table_name}' and database=currentDatabase()").strip()
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# assert 0 < int(
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# node.query(
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# f"""
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# SYSTEM FLUSH LOGS;
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# SELECT count() FROM system.text_log
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# WHERE level='Error'
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# AND logger_name='MergeTreeBackgroundExecutor'
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# AND message like 'Exception while executing background task %{table_uuid}:all_3_5_1%%Cannot open file%proj2.proj/c.bin%'
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# """)
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# )
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assert "all_3_3_0" in get_broken_projections_info(node, table_name)
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check(node, table_name, 0)
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def test_materialize_broken_projection(cluster):
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node = cluster.instances["node"]
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table_name = "test2"
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create_table(node, table_name, 1)
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insert(node, table_name, 0, 5)
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insert(node, table_name, 5, 5)
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insert(node, table_name, 10, 5)
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insert(node, table_name, 15, 5)
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assert ["all_0_0_0", "all_1_1_0", "all_2_2_0", "all_3_3_0"] == get_parts(
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node, table_name
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)
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break_projection(node, table_name, "proj1", "all_1_1_0", "metadata")
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reattach(node, table_name)
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assert "all_1_1_0\tproj1\tNO_FILE_IN_DATA_PART" in get_broken_projections_info(
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node, table_name
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)
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assert "Part all_1_1_0 has a broken projection proj1" in check_table_full(
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node, table_name
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)
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break_projection(node, table_name, "proj2", "all_1_1_0", "data")
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reattach(node, table_name)
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assert "all_1_1_0\tproj2\tFILE_DOESNT_EXIST" in get_broken_projections_info(
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node, table_name
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)
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assert "Part all_1_1_0 has a broken projection proj2" in check_table_full(
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node, table_name
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)
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materialize_projection(node, table_name, "proj1")
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assert "has a broken projection" not in check_table_full(node, table_name)
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def test_broken_ignored_replicated(cluster):
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node = cluster.instances["node"]
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table_name = "test3"
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table_name2 = "test3_replica"
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create_table(node, table_name, 1)
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insert(node, table_name, 0, 5)
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insert(node, table_name, 5, 5)
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insert(node, table_name, 10, 5)
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insert(node, table_name, 15, 5)
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check(node, table_name, 1)
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create_table(node, table_name2, 2, table_name)
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check(node, table_name2, 1)
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break_projection(node, table_name, "proj1", "all_0_0_0", "data")
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assert "Part all_0_0_0 has a broken projection proj1" in check_table_full(
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node, table_name
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)
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break_part(node, table_name, "all_0_0_0")
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node.query(f"SYSTEM SYNC REPLICA {table_name}")
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assert "has a broken projection" not in check_table_full(node, table_name)
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def get_random_string(string_length=8):
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alphabet = string.ascii_letters + string.digits
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return "".join((random.choice(alphabet) for _ in range(string_length)))
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def test_broken_projections_in_backups_1(cluster):
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node = cluster.instances["node"]
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table_name = "test4"
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create_table(node, table_name, 1, aggressive_merge=False, data_prefix=table_name)
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node.query("SYSTEM STOP MERGES")
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insert(node, table_name, 0, 5)
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insert(node, table_name, 5, 5)
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insert(node, table_name, 10, 5)
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insert(node, table_name, 15, 5)
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assert ["all_0_0_0", "all_1_1_0", "all_2_2_0", "all_3_3_0"] == get_parts(
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node, table_name
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)
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check(node, table_name, 1)
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break_projection(node, table_name, "proj1", "all_2_2_0", "data")
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check(node, table_name, 0, "proj1", "FILE_DOESNT_EXIST")
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assert "all_2_2_0\tproj1\tNO_FILE_IN_DATA_PART" in get_broken_projections_info(
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node, table_name
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)
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backup_name = f"b1-{get_random_string()}"
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assert "BACKUP_CREATED" in node.query(
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f"""
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set backup_restore_keeper_fault_injection_probability=0.0;
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backup table {table_name} to Disk('backups', '{backup_name}') settings check_projection_parts=false;
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"""
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)
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assert "RESTORED" in node.query(
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f"""
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drop table {table_name} sync;
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set backup_restore_keeper_fault_injection_probability=0.0;
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restore table {table_name} from Disk('backups', '{backup_name}');
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"""
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)
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node.query("SYSTEM STOP MERGES")
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check(node, table_name, 1)
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assert "" == get_broken_projections_info(node, table_name)
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def test_broken_projections_in_backups_2(cluster):
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node = cluster.instances["node"]
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table_name = "test5"
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create_table(node, table_name, 1, aggressive_merge=False, data_prefix=table_name)
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insert(node, table_name, 0, 5)
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insert(node, table_name, 5, 5)
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insert(node, table_name, 10, 5)
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insert(node, table_name, 15, 5)
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assert ["all_0_0_0", "all_1_1_0", "all_2_2_0", "all_3_3_0"] == get_parts(
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node, table_name
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)
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check(node, table_name, 1)
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break_projection(node, table_name, "proj2", "all_2_2_0", "part")
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check(node, table_name, 0, "proj2", "ErrnoException")
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assert "all_2_2_0\tproj2\tFILE_DOESNT_EXIST" == get_broken_projections_info(
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node, table_name
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)
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assert "FILE_DOESNT_EXIST" in node.query_and_get_error(
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f"""
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set backup_restore_keeper_fault_injection_probability=0.0;
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backup table {table_name} to Disk('backups', 'b2')
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"""
|
|
)
|
|
|
|
materialize_projection(node, table_name, "proj2")
|
|
check(node, table_name, 1)
|
|
|
|
backup_name = f"b3-{get_random_string()}"
|
|
assert "BACKUP_CREATED" in node.query(
|
|
f"""
|
|
set backup_restore_keeper_fault_injection_probability=0.0;
|
|
backup table {table_name} to Disk('backups', '{backup_name}') settings check_projection_parts=false;
|
|
"""
|
|
)
|
|
|
|
assert "RESTORED" in node.query(
|
|
f"""
|
|
drop table {table_name} sync;
|
|
set backup_restore_keeper_fault_injection_probability=0.0;
|
|
restore table {table_name} from Disk('backups', '{backup_name}');
|
|
"""
|
|
)
|
|
check(node, table_name, 1)
|
|
|
|
|
|
def test_broken_projections_in_backups_3(cluster):
|
|
node = cluster.instances["node"]
|
|
|
|
table_name = "test6"
|
|
create_table(node, table_name, 1, aggressive_merge=False, data_prefix=table_name)
|
|
|
|
node.query("SYSTEM STOP MERGES")
|
|
|
|
insert(node, table_name, 0, 5)
|
|
insert(node, table_name, 5, 5)
|
|
insert(node, table_name, 10, 5)
|
|
insert(node, table_name, 15, 5)
|
|
|
|
assert ["all_0_0_0", "all_1_1_0", "all_2_2_0", "all_3_3_0"] == get_parts(
|
|
node, table_name
|
|
)
|
|
|
|
check(node, table_name, 1)
|
|
|
|
break_projection(node, table_name, "proj1", "all_1_1_0", "part")
|
|
assert "Part all_1_1_0 has a broken projection proj1" in check_table_full(
|
|
node, table_name
|
|
)
|
|
assert "all_1_1_0\tproj1\tFILE_DOESNT_EXIST" == get_broken_projections_info(
|
|
node, table_name
|
|
)
|
|
|
|
backup_name = f"b4-{get_random_string()}"
|
|
assert "BACKUP_CREATED" in node.query(
|
|
f"""
|
|
set backup_restore_keeper_fault_injection_probability=0.0;
|
|
backup table {table_name} to Disk('backups', '{backup_name}') settings check_projection_parts=false, allow_backup_broken_projections=true;
|
|
"""
|
|
)
|
|
|
|
assert "RESTORED" in node.query(
|
|
f"""
|
|
drop table {table_name} sync;
|
|
set backup_restore_keeper_fault_injection_probability=0.0;
|
|
restore table {table_name} from Disk('backups', '{backup_name}');
|
|
"""
|
|
)
|
|
|
|
check(node, table_name, 0)
|
|
assert "all_1_1_0\tproj1\tNO_FILE_IN_DATA_PART" == get_broken_projections_info(
|
|
node, table_name
|
|
)
|