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cad1e0b768
ClickHouse/tests/clickhouse-test
Alexander Tokmakov 7122ebab4d fix clickhouse-test
2023-02-24 03:06:33 +01:00

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#!/usr/bin/env python3
# pylint: disable=too-many-return-statements
# pylint: disable=global-variable-not-assigned
# pylint: disable=too-many-lines
# pylint: disable=anomalous-backslash-in-string
import enum
from queue import Full
import shutil
import sys
import os
import os.path
import signal
import re
import copy
import traceback
import math
# Not requests, to avoid requiring extra dependency.
import http.client
import urllib.parse
import json
# for crc32
import zlib
from argparse import ArgumentParser
from typing import Tuple, Union, Optional, Dict, Set, List
import subprocess
from subprocess import Popen
from subprocess import PIPE
from datetime import datetime
from time import time, sleep
from errno import ESRCH
try:
import termcolor # type: ignore
except ImportError:
termcolor = None
import random
import string
import multiprocessing
import socket
from contextlib import closing
USE_JINJA = True
try:
import jinja2
except ImportError:
USE_JINJA = False
print("WARNING: jinja2 not installed! Template tests will be skipped.")
MESSAGES_TO_RETRY = [
"ConnectionPoolWithFailover: Connection failed at try",
"DB::Exception: New table appeared in database being dropped or detached. Try again",
"is already started to be removing by another replica right now",
]
MAX_RETRIES = 3
TEST_FILE_EXTENSIONS = [".sql", ".sql.j2", ".sh", ".py", ".expect"]
VERSION_PATTERN = r"^((\d+\.)?(\d+\.)?(\d+\.)?\d+)$"
def stringhash(s):
# default hash() function consistent
# only during process invocation https://stackoverflow.com/a/42089311
return zlib.crc32(s.encode("utf-8"))
# First and last lines of the log
def trim_for_log(s):
return s
class HTTPError(Exception):
def __init__(self, message=None, code=None):
self.message = message
self.code = code
super().__init__(message)
def __str__(self):
return f"Code: {self.code}. {self.message}"
# Helpers to execute queries via HTTP interface.
def clickhouse_execute_http(
base_args, query, timeout=30, settings=None, default_format=None, max_http_retries=5
):
if args.secure:
client = http.client.HTTPSConnection(
host=base_args.tcp_host, port=base_args.http_port, timeout=timeout
)
else:
client = http.client.HTTPConnection(
host=base_args.tcp_host, port=base_args.http_port, timeout=timeout
)
timeout = int(timeout)
params = {
"query": query,
# hung check in stress tests may remove the database,
# hence we should use 'system'.
"database": "system",
"connect_timeout": timeout,
"receive_timeout": timeout,
"send_timeout": timeout,
"http_connection_timeout": timeout,
"http_receive_timeout": timeout,
"http_send_timeout": timeout,
}
if settings is not None:
params.update(settings)
if default_format is not None:
params["default_format"] = default_format
for i in range(max_http_retries):
try:
client.request(
"POST",
f"/?{base_args.client_options_query_str}{urllib.parse.urlencode(params)}",
)
res = client.getresponse()
data = res.read()
break
except Exception as ex:
if i == max_http_retries - 1:
raise ex
sleep(i + 1)
if res.status != 200:
raise HTTPError(data.decode(), res.status)
return data
def clickhouse_execute(base_args, query, timeout=30, settings=None, max_http_retries=5):
return clickhouse_execute_http(base_args, query, timeout, settings, max_http_retries=max_http_retries).strip()
def clickhouse_execute_json(base_args, query, timeout=60, settings=None, max_http_retries=5):
data = clickhouse_execute_http(base_args, query, timeout, settings, "JSONEachRow", max_http_retries=max_http_retries)
if not data:
return None
rows = []
for row in data.strip().splitlines():
rows.append(json.loads(row))
return rows
class Terminated(KeyboardInterrupt):
pass
def signal_handler(sig, frame):
raise Terminated(f"Terminated with {sig} signal")
def stop_tests():
global stop_tests_triggered_lock
global stop_tests_triggered
global restarted_tests
with stop_tests_triggered_lock:
print("Stopping tests")
if not stop_tests_triggered.is_set():
stop_tests_triggered.set()
# materialize multiprocessing.Manager().list() object before
# sending SIGTERM since this object is a proxy, that requires
# communicating with manager thread, but after SIGTERM will be
# send, this thread will die, and you will get
# ConnectionRefusedError error for any access to "restarted_tests"
# variable.
restarted_tests = [*restarted_tests]
# send signal to all processes in group to avoid hung check triggering
# (to avoid terminating clickhouse-test itself, the signal should be ignored)
signal.signal(signal.SIGTERM, signal.SIG_IGN)
os.killpg(os.getpgid(os.getpid()), signal.SIGTERM)
signal.signal(signal.SIGTERM, signal.SIG_DFL)
def get_db_engine(args, database_name):
if args.replicated_database:
return f" ON CLUSTER test_cluster_database_replicated \
ENGINE=Replicated('/test/clickhouse/db/{database_name}', \
'{{shard}}', '{{replica}}')"
if args.db_engine:
return " ENGINE=" + args.db_engine
return "" # Will use default engine
def get_create_database_settings(args, testcase_args):
create_database_settings = dict()
if testcase_args:
create_database_settings["log_comment"] = testcase_args.testcase_basename
if args.db_engine == "Ordinary":
create_database_settings["allow_deprecated_database_ordinary"] = 1
return create_database_settings
def get_zookeeper_session_uptime(args):
try:
if args.replicated_database:
return int(
clickhouse_execute(
args,
"""
SELECT min(materialize(zookeeperSessionUptime()))
FROM clusterAllReplicas('test_cluster_database_replicated', system.one)
""",
)
)
else:
return int(clickhouse_execute(args, "SELECT zookeeperSessionUptime()"))
except Exception:
return None
def need_retry(args, stdout, stderr, total_time):
if args.check_zookeeper_session:
# Sometimes we may get unexpected exception like "Replica is readonly" or "Shutdown is called for table"
# instead of "Session expired" or "Connection loss"
# Retry if session was expired during test execution.
# If ZooKeeper is configured, then it's more reliable than checking stderr,
# but the following condition is always true if ZooKeeper is not configured.
session_uptime = get_zookeeper_session_uptime(args)
if session_uptime is not None and session_uptime < math.ceil(total_time):
return True
return any(msg in stdout for msg in MESSAGES_TO_RETRY) or any(
msg in stderr for msg in MESSAGES_TO_RETRY
)
def get_processlist_with_stacktraces(args):
try:
if args.replicated_database:
return clickhouse_execute_json(
args,
"""
SELECT materialize(hostName() || '::' || tcpPort()::String) as host_port, *
-- NOTE: view() here to do JOIN on shards, instead of initiator
FROM clusterAllReplicas('test_cluster_database_replicated', view(
SELECT
groupArray((s.thread_id, arrayStringConcat(arrayMap(
x -> concat(addressToLine(x), '::', demangle(addressToSymbol(x))),
s.trace), '\n') AS stacktrace
)) AS stacktraces,
p.*
FROM system.processes p
JOIN system.stack_trace s USING (query_id)
WHERE query NOT LIKE '%system.processes%'
GROUP BY p.*
))
ORDER BY elapsed DESC
""",
settings={
"allow_introspection_functions": 1,
},
)
else:
return clickhouse_execute_json(
args,
"""
SELECT
groupArray((s.thread_id, arrayStringConcat(arrayMap(
x -> concat(addressToLine(x), '::', demangle(addressToSymbol(x))),
s.trace), '\n') AS stacktrace
)) AS stacktraces,
p.*
FROM system.processes p
JOIN system.stack_trace s USING (query_id)
WHERE query NOT LIKE '%system.processes%'
GROUP BY p.*
ORDER BY elapsed DESC
""",
settings={
"allow_introspection_functions": 1,
},
)
except Exception as e:
return "Failed to get processlist: " + str(e)
def get_transactions_list(args):
try:
if args.replicated_database:
return clickhouse_execute_json(
args,
"SELECT materialize((hostName(), tcpPort())) as host, * FROM "
"clusterAllReplicas('test_cluster_database_replicated', system.transactions)",
)
else:
return clickhouse_execute_json(args, "select * from system.transactions")
except Exception as e:
return f"Cannot get list of transactions: {e}"
# collect server stacktraces using gdb
def get_stacktraces_from_gdb(server_pid):
try:
cmd = f"gdb -batch -ex 'thread apply all backtrace' -p {server_pid}"
return subprocess.check_output(cmd, shell=True).decode("utf-8")
except Exception as e:
print(f"Error occurred while receiving stack traces from gdb: {e}")
return None
# collect server stacktraces from system.stack_trace table
# it does not work in Sandbox
def get_stacktraces_from_clickhouse(args):
settings_str = " ".join(
[
get_additional_client_options(args),
"--allow_introspection_functions=1",
"--skip_unavailable_shards=1",
]
)
replicated_msg = (
f"{args.client} {settings_str} --query "
'"SELECT materialize((hostName(), tcpPort())) as host, thread_id, '
"arrayStringConcat(arrayMap(x, y -> concat(x, ': ', y), "
"arrayMap(x -> addressToLine(x), trace), "
"arrayMap(x -> demangle(addressToSymbol(x)), trace)), '\n') as trace "
"FROM clusterAllReplicas('test_cluster_database_replicated', 'system.stack_trace') "
'ORDER BY host, thread_id FORMAT Vertical"'
)
msg = (
f"{args.client} {settings_str} --query "
"\"SELECT arrayStringConcat(arrayMap(x, y -> concat(x, ': ', y), "
"arrayMap(x -> addressToLine(x), trace), "
"arrayMap(x -> demangle(addressToSymbol(x)), trace)), '\n') as trace "
'FROM system.stack_trace FORMAT Vertical"'
)
try:
return subprocess.check_output(
replicated_msg if args.replicated_database else msg,
shell=True,
stderr=subprocess.STDOUT,
).decode("utf-8")
except Exception as e:
print(f"Error occurred while receiving stack traces from client: {e}")
return None
def print_stacktraces() -> None:
server_pid = get_server_pid()
bt = None
if server_pid and not args.replicated_database:
print("")
print(
f"Located ClickHouse server process {server_pid} listening at TCP port {args.tcp_port}"
)
print("Collecting stacktraces from all running threads with gdb:")
bt = get_stacktraces_from_gdb(server_pid)
if len(bt) < 1000:
print("Got suspiciously small stacktraces: ", bt)
bt = None
if bt is None:
print("\nCollecting stacktraces from system.stacktraces table:")
bt = get_stacktraces_from_clickhouse(args)
if bt is not None:
print(bt)
return
print(
colored(
f"\nUnable to locate ClickHouse server process listening at TCP port "
f"{args.tcp_port}. It must have crashed or exited prematurely!",
args,
"red",
attrs=["bold"],
)
)
def get_server_pid():
# lsof does not work in stress tests for some reason
cmd_lsof = f"lsof -i tcp:{args.tcp_port} -s tcp:LISTEN -Fp | sed 's/^p//p;d'"
cmd_pidof = "pidof -s clickhouse-server"
commands = [cmd_lsof, cmd_pidof]
output = None
for cmd in commands:
try:
output = subprocess.check_output(
cmd, shell=True, stderr=subprocess.STDOUT, universal_newlines=True
)
if output:
return int(output)
except Exception as e:
print(f"Cannot get server pid with {cmd}, got {output}: {e}")
return None # most likely server is dead
def colored(text, args, color=None, on_color=None, attrs=None):
if termcolor and (sys.stdout.isatty() or args.force_color):
return termcolor.colored(text, color, on_color, attrs)
else:
return text
class TestStatus(enum.Enum):
FAIL = "FAIL"
UNKNOWN = "UNKNOWN"
OK = "OK"
SKIPPED = "SKIPPED"
class FailureReason(enum.Enum):
# FAIL reasons
TIMEOUT = "Timeout!"
SERVER_DIED = "server died"
EXIT_CODE = "return code: "
STDERR = "having stderror: "
EXCEPTION = "having having exception in stdout: "
RESULT_DIFF = "result differs with reference: "
TOO_LONG = "Test runs too long (> 60s). Make it faster."
INTERNAL_QUERY_FAIL = "Internal query (CREATE/DROP DATABASE) failed:"
# SKIPPED reasons
DISABLED = "disabled"
SKIP = "skip"
NO_JINJA = "no jinja"
NO_ZOOKEEPER = "no zookeeper"
NO_SHARD = "no shard"
FAST_ONLY = "running fast tests only"
NO_LONG = "not running long tests"
REPLICATED_DB = "replicated-database"
S3_STORAGE = "s3-storage"
BUILD = "not running for current build"
BACKWARD_INCOMPATIBLE = "test is backward incompatible"
NO_PARALLEL_REPLICAS = "smth in not supported with parallel replicas"
# UNKNOWN reasons
NO_REFERENCE = "no reference file"
INTERNAL_ERROR = "Test internal error: "
def threshold_generator(always_on_prob, always_off_prob, min_val, max_val):
def gen():
tmp = random.random()
if tmp <= always_on_prob:
return min_val
if tmp <= always_on_prob + always_off_prob:
return max_val
if isinstance(min_val, int) and isinstance(max_val, int):
return random.randint(min_val, max_val)
else:
return random.uniform(min_val, max_val)
return gen
class SettingsRandomizer:
settings = {
"max_insert_threads": lambda: 0
if random.random() < 0.5
else random.randint(1, 16),
"group_by_two_level_threshold": threshold_generator(0.2, 0.2, 1, 1000000),
"group_by_two_level_threshold_bytes": threshold_generator(
0.2, 0.2, 1, 50000000
),
"distributed_aggregation_memory_efficient": lambda: random.randint(0, 1),
"fsync_metadata": lambda: random.randint(0, 1),
"output_format_parallel_formatting": lambda: random.randint(0, 1),
"input_format_parallel_parsing": lambda: random.randint(0, 1),
"min_chunk_bytes_for_parallel_parsing": lambda: max(
1024, int(random.gauss(10 * 1024 * 1024, 5 * 1000 * 1000))
),
"max_read_buffer_size": lambda: random.randint(500000, 1048576),
"prefer_localhost_replica": lambda: random.randint(0, 1),
"max_block_size": lambda: random.randint(8000, 100000),
"max_threads": lambda: random.randint(1, 64),
"optimize_or_like_chain": lambda: random.randint(0, 1),
"optimize_read_in_order": lambda: random.randint(0, 1),
"read_in_order_two_level_merge_threshold": lambda: random.randint(0, 100),
"optimize_aggregation_in_order": lambda: random.randint(0, 1),
"aggregation_in_order_max_block_bytes": lambda: random.randint(0, 50000000),
"min_compress_block_size": lambda: random.randint(1, 1048576 * 3),
"max_compress_block_size": lambda: random.randint(1, 1048576 * 3),
"use_uncompressed_cache": lambda: random.randint(0, 1),
"min_bytes_to_use_direct_io": threshold_generator(
0.2, 0.5, 1, 10 * 1024 * 1024 * 1024
),
"min_bytes_to_use_mmap_io": threshold_generator(
0.2, 0.5, 1, 10 * 1024 * 1024 * 1024
),
"local_filesystem_read_method": lambda: random.choice(
["read", "pread", "mmap", "pread_threadpool", "io_uring"]
),
"remote_filesystem_read_method": lambda: random.choice(["read", "threadpool"]),
"local_filesystem_read_prefetch": lambda: random.randint(0, 1),
"remote_filesystem_read_prefetch": lambda: random.randint(0, 1),
"compile_expressions": lambda: random.randint(0, 1),
"compile_aggregate_expressions": lambda: random.randint(0, 1),
"compile_sort_description": lambda: random.randint(0, 1),
"merge_tree_coarse_index_granularity": lambda: random.randint(2, 32),
"optimize_distinct_in_order": lambda: random.randint(0, 1),
"optimize_sorting_by_input_stream_properties": lambda: random.randint(0, 1),
"enable_memory_bound_merging_of_aggregation_results": lambda: random.randint(0, 1),
}
@staticmethod
def get_random_settings():
random_settings = []
for setting, generator in SettingsRandomizer.settings.items():
random_settings.append(f"{setting}={generator()}")
return random_settings
class MergeTreeSettingsRandomizer:
settings = {
# Temporary disable due to large number of failures. TODO: fix.
# "ratio_of_defaults_for_sparse_serialization": threshold_generator(
# 0.1, 0.6, 0.0, 1.0
# ),
"prefer_fetch_merged_part_size_threshold": threshold_generator(
0.2, 0.5, 1, 10 * 1024 * 1024 * 1024
),
"vertical_merge_algorithm_min_rows_to_activate": threshold_generator(
0.4, 0.4, 1, 1000000
),
"vertical_merge_algorithm_min_columns_to_activate": threshold_generator(
0.4, 0.4, 1, 100
),
"min_merge_bytes_to_use_direct_io": threshold_generator(
0.25, 0.25, 1, 10 * 1024 * 1024 * 1024
),
"index_granularity_bytes": lambda: random.randint(1024, 30 * 1024 * 1024),
"merge_max_block_size": lambda: random.randint(1, 8192 * 3),
"index_granularity": lambda: random.randint(1, 65536),
"min_bytes_for_wide_part": threshold_generator(0.3, 0.3, 0, 1024 * 1024 * 1024),
}
@staticmethod
def get_random_settings(args):
random_settings = []
for setting, generator in MergeTreeSettingsRandomizer.settings.items():
if setting not in args.changed_merge_tree_settings:
random_settings.append(f"{setting}={generator()}")
return random_settings
class TestResult:
def __init__(
self,
case_name: str,
status: TestStatus,
reason: Optional[FailureReason],
total_time: float,
description: str,
):
self.case_name: str = case_name
self.status: TestStatus = status
self.reason: Optional[FailureReason] = reason
self.total_time: float = total_time
self.description: str = description
self.need_retry: bool = False
def check_if_need_retry(self, args, stdout, stderr, runs_count):
if (
self.status != TestStatus.FAIL
or not need_retry(args, stdout, stderr, self.total_time)
or MAX_RETRIES < runs_count
):
return
self.need_retry = True
class TestCase:
@staticmethod
def get_description_from_exception_info(exc_info):
exc_type, exc_value, tb = exc_info
exc_name = exc_type.__name__
traceback_str = "\n".join(traceback.format_tb(tb, 10))
description = f"\n{exc_name}\n{exc_value}\n{traceback_str}"
return description
@staticmethod
def get_reference_file(suite_dir, name):
"""
Returns reference file name for specified test
"""
name = removesuffix(name, ".gen")
for ext in [".reference", ".gen.reference"]:
reference_file = os.path.join(suite_dir, name) + ext
if os.path.isfile(reference_file):
return reference_file
return None
@staticmethod
def configure_testcase_args(args, case_file, suite_tmp_dir):
testcase_args = copy.deepcopy(args)
testcase_args.testcase_start_time = datetime.now()
testcase_basename = os.path.basename(case_file)
testcase_args.testcase_client = (
f"{testcase_args.client} --log_comment '{testcase_basename}'"
)
testcase_args.testcase_basename = testcase_basename
if testcase_args.database:
database = testcase_args.database
os.environ.setdefault("CLICKHOUSE_DATABASE", database)
os.environ.setdefault("CLICKHOUSE_TMP", suite_tmp_dir)
testcase_args.test_tmp_dir = suite_tmp_dir
else:
# If --database is not specified, we will create temporary database with
# unique name and we will recreate and drop it for each test
def random_str(length=8):
alphabet = string.ascii_lowercase + string.digits
# NOTE: it is important not to use default random generator, since it shares state.
return "".join(
random.SystemRandom().choice(alphabet) for _ in range(length)
)
database = f"test_{random_str()}"
clickhouse_execute(
args,
"CREATE DATABASE IF NOT EXISTS " + database + get_db_engine(testcase_args, database),
settings=get_create_database_settings(args, testcase_args),
)
os.environ["CLICKHOUSE_DATABASE"] = database
# Set temporary directory to match the randomly generated database,
# because .sh tests also use it for temporary files and we want to avoid
# collisions.
testcase_args.test_tmp_dir = os.path.join(suite_tmp_dir, database)
os.mkdir(testcase_args.test_tmp_dir)
os.environ["CLICKHOUSE_TMP"] = testcase_args.test_tmp_dir
testcase_args.testcase_database = database
# Printed only in case of failures
#
# NOTE: here we use "CLICKHOUSE_TMP" instead of "file_suffix",
# so it is installed in configure_testcase_args() unlike other files
# (stdout_file, stderr_file) in TestCase::__init__().
# Since using CLICKHOUSE_TMP is easier to use in expect.
testcase_args.debug_log_file = (
os.path.join(testcase_args.test_tmp_dir, testcase_basename) + ".debuglog"
)
return testcase_args
@staticmethod
def cli_format_settings(settings_list) -> str:
return " ".join([f"--{setting}" for setting in settings_list])
def has_show_create_table_in_test(self):
return not subprocess.call(["grep", "-iq", "show create", self.case_file])
def add_random_settings(self, client_options):
new_options = ""
if self.randomize_settings:
if len(self.base_url_params) == 0:
os.environ["CLICKHOUSE_URL_PARAMS"] = "&".join(self.random_settings)
else:
os.environ["CLICKHOUSE_URL_PARAMS"] = (
self.base_url_params + "&" + "&".join(self.random_settings)
)
new_options += f" {self.cli_format_settings(self.random_settings)}"
if self.randomize_merge_tree_settings:
new_options += f" --allow_merge_tree_settings {self.cli_format_settings(self.merge_tree_random_settings)}"
if new_options != "":
new_options += " --allow_repeated_settings"
os.environ["CLICKHOUSE_CLIENT_OPT"] = (
self.base_client_options + new_options + " "
)
return client_options + new_options
def remove_random_settings_from_env(self):
os.environ["CLICKHOUSE_URL_PARAMS"] = self.base_url_params
os.environ["CLICKHOUSE_CLIENT_OPT"] = self.base_client_options
def add_info_about_settings(self, description):
if self.randomize_settings:
description += f"\nSettings used in the test: {self.cli_format_settings(self.random_settings)}"
if self.randomize_merge_tree_settings:
description += f"\n\nMergeTree settings used in test: {self.cli_format_settings(self.merge_tree_random_settings)}"
return description + "\n"
def __init__(self, suite, case: str, args, is_concurrent: bool):
self.case: str = case # case file name
self.tags: Set[str] = suite.all_tags[case] if case in suite.all_tags else set()
for tag in os.getenv("GLOBAL_TAGS", "").split(","):
self.tags.add(tag.strip())
self.case_file: str = os.path.join(suite.suite_path, case)
(self.name, self.ext) = os.path.splitext(case)
file_suffix = f".{os.getpid()}" if is_concurrent and args.test_runs > 1 else ""
self.reference_file = self.get_reference_file(suite.suite_path, self.name)
self.stdout_file = (
os.path.join(suite.suite_tmp_path, self.name) + file_suffix + ".stdout"
)
self.stderr_file = (
os.path.join(suite.suite_tmp_path, self.name) + file_suffix + ".stderr"
)
self.testcase_args = None
self.runs_count = 0
has_no_random_settings_tag = self.tags and "no-random-settings" in self.tags
self.randomize_settings = not (
args.no_random_settings or has_no_random_settings_tag
)
has_no_random_merge_tree_settings_tag = (
self.tags and "no-random-merge-tree-settings" in self.tags
)
# If test contains SHOW CREATE TABLE do not
# randomize merge tree settings, because
# they will be added to table definition and test will fail
self.randomize_merge_tree_settings = not (
args.no_random_merge_tree_settings
or has_no_random_settings_tag
or has_no_random_merge_tree_settings_tag
or self.has_show_create_table_in_test()
)
if self.randomize_settings:
self.random_settings = SettingsRandomizer.get_random_settings()
if self.randomize_merge_tree_settings:
self.merge_tree_random_settings = (
MergeTreeSettingsRandomizer.get_random_settings(args)
)
self.base_url_params = (
os.environ["CLICKHOUSE_URL_PARAMS"]
if "CLICKHOUSE_URL_PARAMS" in os.environ
else ""
)
self.base_client_options = (
os.environ["CLICKHOUSE_CLIENT_OPT"]
if "CLICKHOUSE_CLIENT_OPT" in os.environ
else ""
)
# Check if test contains tag "no-backward-compatibility-check" and we should skip it
def check_backward_incompatible_tag(self) -> bool:
for tag in self.tags:
if tag.startswith("no-backward-compatibility-check"):
split = tag.split(":")
# If version is not specified in tag, always skip this test.
if len(split) == 1:
return True
version_from_tag = split[1]
# Check if extracted string from tag is a real ClickHouse version, if not - always skip test.
if re.match(VERSION_PATTERN, version_from_tag) is None:
return True
server_version = str(
clickhouse_execute(args, "SELECT version()").decode()
)
# If server version is less or equal from the version specified in tag, we should skip this test.
version_from_tag_split = list(map(int, version_from_tag.split(".")))
server_version_split = list(map(int, server_version.split(".")))
if (
server_version_split[: len(version_from_tag_split)]
<= version_from_tag_split
):
return True
return False
# should skip test, should increment skipped_total, skip reason
def should_skip_test(self, suite) -> Optional[FailureReason]:
tags = self.tags
if tags and ("disabled" in tags) and not args.disabled:
return FailureReason.DISABLED
elif (
os.path.exists(os.path.join(suite.suite_path, self.name) + ".disabled")
and not args.disabled
):
return FailureReason.DISABLED
elif "no-parallel-replicas" in tags and args.no_parallel_replicas:
return FailureReason.NO_PARALLEL_REPLICAS
elif args.skip and any(s in self.name for s in args.skip):
return FailureReason.SKIP
elif not USE_JINJA and self.ext.endswith("j2"):
return FailureReason.NO_JINJA
elif (
tags
and (("zookeeper" in tags) or ("replica" in tags))
and not args.zookeeper
):
return FailureReason.NO_ZOOKEEPER
elif (
tags
and (("shard" in tags) or ("distributed" in tags) or ("global" in tags))
and not args.shard
):
return FailureReason.NO_SHARD
elif tags and ("no-fasttest" in tags) and args.fast_tests_only:
return FailureReason.FAST_ONLY
elif (
tags
and (("long" in tags) or ("deadlock" in tags) or ("race" in tags))
and args.no_long
):
# Tests for races and deadlocks usually are run in a loop for a significant amount of time
return FailureReason.NO_LONG
elif tags and ("no-replicated-database" in tags) and args.replicated_database:
return FailureReason.REPLICATED_DB
elif (
args.backward_compatibility_check and self.check_backward_incompatible_tag()
):
return FailureReason.BACKWARD_INCOMPATIBLE
elif tags and ("no-s3-storage" in tags) and args.s3_storage:
return FailureReason.S3_STORAGE
elif tags:
for build_flag in args.build_flags:
if "no-" + build_flag in tags:
return FailureReason.BUILD
for tag in tags:
tag = tag.replace("-", "_")
if tag.startswith("use_") and tag not in args.build_flags:
return FailureReason.BUILD
return None
def process_result_impl(
self, proc, stdout: str, stderr: str, debug_log: str, total_time: float
):
description = ""
debug_log = trim_for_log(debug_log)
if proc:
if proc.returncode is None:
try:
proc.kill()
except OSError as e:
if e.errno != ESRCH:
raise
if stderr:
description += stderr
if debug_log:
description += "\n"
description += debug_log
return TestResult(
self.name,
TestStatus.FAIL,
FailureReason.TIMEOUT,
total_time,
description,
)
if proc.returncode != 0:
reason = FailureReason.EXIT_CODE
description += str(proc.returncode)
if stderr:
description += "\n"
description += stderr
if debug_log:
description += "\n"
description += debug_log
# Stop on fatal errors like segmentation fault. They are sent to client via logs.
if " <Fatal> " in stderr:
reason = FailureReason.SERVER_DIED
if (
self.testcase_args.stop
and (
"Connection refused" in stderr
or "Attempt to read after eof" in stderr
)
and "Received exception from server" not in stderr
):
reason = FailureReason.SERVER_DIED
if os.path.isfile(self.stdout_file):
description += ", result:\n\n"
description += trim_for_log(open(self.stdout_file).read())
description += "\n"
description += f"\nstdout:\n{stdout}\n"
return TestResult(
self.name, TestStatus.FAIL, reason, total_time, description
)
if stderr:
description += "\n"
description += trim_for_log(stderr)
description += "\n"
description += "\nstdout:\n"
description += trim_for_log(stdout)
description += "\n"
if debug_log:
description += "\n"
description += debug_log
return TestResult(
self.name,
TestStatus.FAIL,
FailureReason.STDERR,
total_time,
description,
)
if "Exception" in stdout:
description += "\n"
description += trim_for_log(stdout)
description += "\n"
if debug_log:
description += "\n"
description += debug_log
return TestResult(
self.name,
TestStatus.FAIL,
FailureReason.EXCEPTION,
total_time,
description,
)
if "@@SKIP@@" in stdout:
skip_reason = stdout.replace("@@SKIP@@", "").rstrip("\n")
description += " - "
description += skip_reason
return TestResult(
self.name,
TestStatus.SKIPPED,
FailureReason.SKIP,
total_time,
description,
)
if self.reference_file is None:
return TestResult(
self.name,
TestStatus.UNKNOWN,
FailureReason.NO_REFERENCE,
total_time,
description,
)
result_is_different = subprocess.call(
["diff", "-q", self.reference_file, self.stdout_file], stdout=PIPE
)
if result_is_different:
diff = Popen(
[
"diff",
"-U",
str(self.testcase_args.unified),
self.reference_file,
self.stdout_file,
],
stdout=PIPE,
universal_newlines=True,
).communicate()[0]
if diff.startswith("Binary files "):
diff += "Content of stdout:\n===================\n"
file = open(self.stdout_file, "r")
diff += str(file.read())
file.close()
diff += "==================="
description += f"\n{diff}\n"
if debug_log:
description += "\n"
description += debug_log
return TestResult(
self.name,
TestStatus.FAIL,
FailureReason.RESULT_DIFF,
total_time,
description,
)
if (
self.testcase_args.test_runs > 1
and total_time > 120
and "long" not in self.tags
):
if debug_log:
description += "\n"
description += debug_log
# We're in Flaky Check mode, check the run time as well while we're at it.
return TestResult(
self.name,
TestStatus.FAIL,
FailureReason.TOO_LONG,
total_time,
description,
)
if os.path.exists(self.stdout_file):
os.remove(self.stdout_file)
if os.path.exists(self.stderr_file):
os.remove(self.stderr_file)
if os.path.exists(self.testcase_args.debug_log_file):
os.remove(self.testcase_args.debug_log_file)
return TestResult(self.name, TestStatus.OK, None, total_time, description)
@staticmethod
def print_test_time(test_time) -> str:
if args.print_time:
return f" {test_time:.2f} sec."
else:
return ""
def process_result(self, result: TestResult, messages):
description_full = messages[result.status]
description_full += self.print_test_time(result.total_time)
if result.reason is not None:
description_full += " - "
description_full += result.reason.value
description_full += result.description
description_full += "\n"
if result.status == TestStatus.FAIL and self.testcase_args:
description_full += "Database: " + self.testcase_args.testcase_database
result.description = description_full
return result
@staticmethod
def send_test_name_failed(suite: str, case: str):
pid = os.getpid()
clickhouse_execute(args, f"SELECT 'Running test {suite}/{case} from pid={pid}'")
def run_single_test(
self, server_logs_level, client_options
) -> Tuple[Optional[Popen], str, str, str, float]:
args = self.testcase_args
client = args.testcase_client
start_time = args.testcase_start_time
database = args.testcase_database
# This is for .sh tests
os.environ["CLICKHOUSE_LOG_COMMENT"] = args.testcase_basename
params = {
"client": client + " --database=" + database,
"logs_level": server_logs_level,
"options": client_options,
"test": self.case_file,
"stdout": self.stdout_file,
"stderr": self.stderr_file,
"secure": "--secure" if args.secure else "",
}
# >> append to stderr (but not stdout since it is not used there),
# because there are also output of per test database creation
if not args.database:
pattern = "{test} > {stdout} 2> {stderr}"
else:
pattern = "{test} > {stdout} 2> {stderr}"
if self.ext == ".sql":
pattern = (
"{client} --send_logs_level={logs_level} {secure} --multiquery {options} < "
+ pattern
)
command = pattern.format(**params)
proc = Popen(command, shell=True, env=os.environ)
while (
datetime.now() - start_time
).total_seconds() < args.timeout and proc.poll() is None:
sleep(0.01)
need_drop_database = not args.database
if need_drop_database and args.no_drop_if_fail:
maybe_passed = (
(proc.returncode == 0)
and (proc.stderr is None)
and (proc.stdout is None or "Exception" not in proc.stdout)
)
need_drop_database = maybe_passed
debug_log = ""
if os.path.exists(self.testcase_args.debug_log_file):
with open(self.testcase_args.debug_log_file, "rb") as stream:
debug_log += self.testcase_args.debug_log_file + ":\n"
debug_log += str(stream.read(), errors="replace", encoding="utf-8")
debug_log += "\n"
if need_drop_database:
seconds_left = max(
args.timeout - (datetime.now() - start_time).total_seconds(), 20
)
drop_database_query = "DROP DATABASE IF EXISTS " + database
if args.replicated_database:
drop_database_query += " ON CLUSTER test_cluster_database_replicated"
try:
# It's possible to get an error "New table appeared in database being dropped or detached. Try again."
for _ in range(1, 60):
try:
clickhouse_execute(
args,
drop_database_query,
timeout=seconds_left,
settings={
"log_comment": args.testcase_basename,
},
)
except HTTPError as e:
if need_retry(args, e.message, e.message, 0):
continue
raise
break
except socket.timeout:
total_time = (datetime.now() - start_time).total_seconds()
return (
None,
"",
f"Timeout dropping database {database} after test",
debug_log,
total_time,
)
shutil.rmtree(args.test_tmp_dir)
total_time = (datetime.now() - start_time).total_seconds()
# Normalize randomized database names in stdout, stderr files.
os.system(f"LC_ALL=C sed -i -e 's/{database}/default/g' {self.stdout_file}")
if args.hide_db_name:
os.system(f"LC_ALL=C sed -i -e 's/{database}/default/g' {self.stderr_file}")
if args.replicated_database:
os.system(f"LC_ALL=C sed -i -e 's|/auto_{{shard}}||g' {self.stdout_file}")
os.system(f"LC_ALL=C sed -i -e 's|auto_{{replica}}||g' {self.stdout_file}")
# Normalize hostname in stdout file.
os.system(
f"LC_ALL=C sed -i -e 's/{socket.gethostname()}/localhost/g' {self.stdout_file}"
)
stdout = ""
if os.path.exists(self.stdout_file):
with open(self.stdout_file, "rb") as stdfd:
stdout = str(stdfd.read(), errors="replace", encoding="utf-8")
stderr = ""
if os.path.exists(self.stderr_file):
with open(self.stderr_file, "rb") as stdfd:
stderr += str(stdfd.read(), errors="replace", encoding="utf-8")
return proc, stdout, stderr, debug_log, total_time
def run(self, args, suite, client_options, server_logs_level):
try:
skip_reason = self.should_skip_test(suite)
if skip_reason is not None:
return TestResult(self.name, TestStatus.SKIPPED, skip_reason, 0.0, "")
if args.testname:
try:
self.send_test_name_failed(suite.suite, self.case)
except Exception:
return TestResult(
self.name,
TestStatus.FAIL,
FailureReason.SERVER_DIED,
0.0,
"\nServer does not respond to health check\n",
)
self.runs_count += 1
self.testcase_args = self.configure_testcase_args(
args, self.case_file, suite.suite_tmp_path
)
client_options = self.add_random_settings(client_options)
proc, stdout, stderr, debug_log, total_time = self.run_single_test(
server_logs_level, client_options
)
result = self.process_result_impl(
proc, stdout, stderr, debug_log, total_time
)
result.check_if_need_retry(args, stdout, stderr, self.runs_count)
# to avoid breaking CSV parser
result.description = result.description.replace('\0', '')
if result.status == TestStatus.FAIL:
result.description = self.add_info_about_settings(result.description)
return result
except KeyboardInterrupt as e:
raise e
except HTTPError:
return TestResult(
self.name,
TestStatus.FAIL,
FailureReason.INTERNAL_QUERY_FAIL,
0.0,
self.add_info_about_settings(
self.get_description_from_exception_info(sys.exc_info())
),
)
except (ConnectionError, http.client.ImproperConnectionState):
return TestResult(
self.name,
TestStatus.FAIL,
FailureReason.SERVER_DIED,
0.0,
self.add_info_about_settings(
self.get_description_from_exception_info(sys.exc_info())
),
)
except Exception:
return TestResult(
self.name,
TestStatus.UNKNOWN,
FailureReason.INTERNAL_ERROR,
0.0,
self.get_description_from_exception_info(sys.exc_info()),
)
finally:
self.remove_random_settings_from_env()
class TestSuite:
@staticmethod
def tests_in_suite_key_func(item: str) -> float:
if args.order == "random":
return random.random()
reverse = 1 if args.order == "asc" else -1
if -1 == item.find("_"):
return 99998
prefix, _ = item.split("_", 1)
try:
return reverse * int(prefix)
except ValueError:
return 99997
@staticmethod
def render_test_template(j2env, suite_dir, test_name):
"""
Render template for test and reference file if needed
"""
if j2env is None:
return test_name
test_base_name = removesuffix(test_name, ".sql.j2", ".sql")
reference_file_name = test_base_name + ".reference.j2"
reference_file_path = os.path.join(suite_dir, reference_file_name)
if os.path.isfile(reference_file_path):
tpl = j2env.get_template(reference_file_name)
tpl.stream().dump(
os.path.join(suite_dir, test_base_name) + ".gen.reference"
)
if test_name.endswith(".sql.j2"):
tpl = j2env.get_template(test_name)
generated_test_name = test_base_name + ".gen.sql"
tpl.stream().dump(os.path.join(suite_dir, generated_test_name))
return generated_test_name
return test_name
@staticmethod
def read_test_tags(suite_dir: str, all_tests: List[str]) -> Dict[str, Set[str]]:
def get_comment_sign(filename):
if filename.endswith(".sql") or filename.endswith(".sql.j2"):
return "--"
elif (
filename.endswith(".sh")
or filename.endswith(".py")
or filename.endswith(".expect")
):
return "#"
else:
raise Exception(f"Unknown file_extension: {filename}")
def parse_tags_from_line(line, comment_sign):
if not line.startswith(comment_sign):
return None
tags_str = line[len(comment_sign) :].lstrip() # noqa: ignore E203
tags_prefix = "Tags:"
if not tags_str.startswith(tags_prefix):
return None
tags_str = tags_str[len(tags_prefix) :] # noqa: ignore E203
tags = tags_str.split(",")
tags = {tag.strip() for tag in tags}
return tags
def is_shebang(line: str) -> bool:
return line.startswith("#!")
def find_tag_line(file):
for line in file:
line = line.strip()
if line and not is_shebang(line):
return line
return ""
def load_tags_from_file(filepath):
comment_sign = get_comment_sign(filepath)
with open(filepath, "r", encoding="utf-8") as file:
try:
line = find_tag_line(file)
except UnicodeDecodeError:
return []
return parse_tags_from_line(line, comment_sign)
all_tags = {}
start_time = datetime.now()
for test_name in all_tests:
tags = load_tags_from_file(os.path.join(suite_dir, test_name))
if tags:
all_tags[test_name] = tags
elapsed = (datetime.now() - start_time).total_seconds()
if elapsed > 1:
print(f"Tags for suite {suite_dir} read in {elapsed:.2f} seconds")
return all_tags
def __init__(self, args, suite_path: str, suite_tmp_path: str, suite: str):
self.args = args
self.suite_path: str = suite_path
self.suite_tmp_path: str = suite_tmp_path
self.suite: str = suite
filter_func = lambda x: True # noqa: ignore E731
if args.run_by_hash_num is not None and args.run_by_hash_total is not None:
if args.run_by_hash_num > args.run_by_hash_total:
raise Exception(
f"Incorrect run by hash, value {args.run_by_hash_num} bigger than total {args.run_by_hash_total}"
)
filter_func = (
lambda x: stringhash(x) % args.run_by_hash_total == args.run_by_hash_num
)
self.all_tests: List[str] = self.get_tests_list(
self.tests_in_suite_key_func, filter_func
)
self.all_tags: Dict[str, Set[str]] = self.read_test_tags(
self.suite_path, self.all_tests
)
self.sequential_tests = []
self.parallel_tests = []
for test_name in self.all_tests:
if self.is_sequential_test(test_name):
self.sequential_tests.append(test_name)
else:
self.parallel_tests.append(test_name)
def is_sequential_test(self, test_name):
if args.sequential:
if any(s in test_name for s in args.sequential):
return True
if test_name not in self.all_tags:
return False
return ("no-parallel" in self.all_tags[test_name]) or (
"sequential" in self.all_tags[test_name]
)
def get_tests_list(self, sort_key, filter_func):
"""
Return list of tests file names to run
"""
all_tests = list(self.get_selected_tests(filter_func))
all_tests = all_tests * self.args.test_runs
all_tests.sort(key=sort_key)
return all_tests
def get_selected_tests(self, filter_func):
"""
Find all files with tests, filter, render templates
"""
j2env = (
jinja2.Environment(
loader=jinja2.FileSystemLoader(self.suite_path),
keep_trailing_newline=True,
)
if USE_JINJA
else None
)
for test_name in os.listdir(self.suite_path):
if not is_test_from_dir(self.suite_path, test_name):
continue
if self.args.test and not any(
re.search(pattern, test_name) for pattern in self.args.test
):
continue
if USE_JINJA and test_name.endswith(".gen.sql"):
continue
if not filter_func(test_name):
continue
test_name = self.render_test_template(j2env, self.suite_path, test_name)
yield test_name
@staticmethod
def read_test_suite(args, suite_dir_name: str):
def is_data_present():
try:
return int(clickhouse_execute(args, "EXISTS TABLE test.hits"))
except Exception as e:
print(
"Cannot check if dataset is available, assuming it's not: ", str(e)
)
return False
base_dir = os.path.abspath(args.queries)
tmp_dir = os.path.abspath(args.tmp)
suite_path = os.path.join(base_dir, suite_dir_name)
suite_re_obj = re.search("^[0-9]+_(.*)$", suite_dir_name)
if not suite_re_obj: # skip .gitignore and so on
return None
suite_tmp_path = os.path.join(tmp_dir, suite_dir_name)
if not os.path.exists(suite_tmp_path):
os.makedirs(suite_tmp_path)
suite = suite_re_obj.group(1)
if not os.path.isdir(suite_path):
return None
if "stateful" in suite and not args.no_stateful and not is_data_present():
print("Won't run stateful tests because test data wasn't loaded.")
return None
if "stateless" in suite and args.no_stateless:
print("Won't run stateless tests because they were manually disabled.")
return None
if "stateful" in suite and args.no_stateful:
print("Won't run stateful tests because they were manually disabled.")
return None
return TestSuite(args, suite_path, suite_tmp_path, suite)
stop_time = None
exit_code = None
server_died = None
stop_tests_triggered_lock = None
stop_tests_triggered = None
queue = None
multiprocessing_manager = None
restarted_tests = None
def run_tests_array(all_tests_with_params: Tuple[List[str], int, TestSuite]):
all_tests, num_tests, test_suite = all_tests_with_params
global stop_time
global exit_code
global server_died
global restarted_tests
OP_SQUARE_BRACKET = colored("[", args, attrs=["bold"])
CL_SQUARE_BRACKET = colored("]", args, attrs=["bold"])
MSG_FAIL = (
OP_SQUARE_BRACKET
+ colored(" FAIL ", args, "red", attrs=["bold"])
+ CL_SQUARE_BRACKET
)
MSG_UNKNOWN = (
OP_SQUARE_BRACKET
+ colored(" UNKNOWN ", args, "yellow", attrs=["bold"])
+ CL_SQUARE_BRACKET
)
MSG_OK = (
OP_SQUARE_BRACKET
+ colored(" OK ", args, "green", attrs=["bold"])
+ CL_SQUARE_BRACKET
)
MSG_SKIPPED = (
OP_SQUARE_BRACKET
+ colored(" SKIPPED ", args, "cyan", attrs=["bold"])
+ CL_SQUARE_BRACKET
)
MESSAGES = {
TestStatus.FAIL: MSG_FAIL,
TestStatus.UNKNOWN: MSG_UNKNOWN,
TestStatus.OK: MSG_OK,
TestStatus.SKIPPED: MSG_SKIPPED,
}
passed_total = 0
skipped_total = 0
failures_total = 0
failures_chain = 0
start_time = datetime.now()
is_concurrent = multiprocessing.current_process().name != "MainProcess"
client_options = get_additional_client_options(args)
if num_tests > 0:
about = "about " if is_concurrent else ""
proc_name = multiprocessing.current_process().name
print(f"\nRunning {about}{num_tests} {test_suite.suite} tests ({proc_name}).\n")
while True:
if is_concurrent:
case = queue.get(timeout=args.timeout * 1.1)
if not case:
break
else:
if all_tests:
case = all_tests.pop(0)
else:
break
if server_died.is_set():
stop_tests()
break
if stop_time and time() > stop_time:
print("\nStop tests run because global time limit is exceeded.\n")
stop_tests()
break
test_case = TestCase(test_suite, case, args, is_concurrent)
try:
description = ""
test_cace_name = removesuffix(test_case.name, ".gen", ".sql") + ": "
if not is_concurrent:
sys.stdout.flush()
sys.stdout.write(f"{test_cace_name:72}")
# This flush is needed so you can see the test name of the long
# running test before it will finish. But don't do it in parallel
# mode, so that the lines don't mix.
sys.stdout.flush()
else:
description = f"{test_cace_name:72}"
while True:
test_result = test_case.run(
args, test_suite, client_options, server_logs_level
)
test_result = test_case.process_result(test_result, MESSAGES)
if not test_result.need_retry:
break
restarted_tests.append(test_result)
# First print the description, than invoke the check result logic
description += test_result.description
if description and not description.endswith("\n"):
description += "\n"
sys.stdout.write(description)
sys.stdout.flush()
if test_result.status == TestStatus.OK:
passed_total += 1
failures_chain = 0
elif test_result.status == TestStatus.FAIL:
failures_total += 1
failures_chain += 1
if test_result.reason == FailureReason.SERVER_DIED:
server_died.set()
stop_tests()
elif test_result.status == TestStatus.SKIPPED:
skipped_total += 1
except KeyboardInterrupt as e:
print(colored("Break tests execution", args, "red"))
stop_tests()
raise e
if failures_chain >= args.max_failures_chain:
stop_tests()
break
if failures_total > 0:
print(
colored(
f"\nHaving {failures_total} errors! {passed_total} tests passed."
f" {skipped_total} tests skipped."
f" {(datetime.now() - start_time).total_seconds():.2f} s elapsed"
f" ({multiprocessing.current_process().name}).",
args,
"red",
attrs=["bold"],
)
)
exit_code.value = 1
else:
print(
colored(
f"\n{passed_total} tests passed. {skipped_total} tests skipped."
f" {(datetime.now() - start_time).total_seconds():.2f} s elapsed"
f" ({multiprocessing.current_process().name}).",
args,
"green",
attrs=["bold"],
)
)
sys.stdout.flush()
server_logs_level = "warning"
def check_server_started(args):
print("Connecting to ClickHouse server...", end="")
sys.stdout.flush()
retry_count = args.server_check_retries
while retry_count > 0:
try:
clickhouse_execute(args, "SELECT 1", max_http_retries=1)
print(" OK")
sys.stdout.flush()
return True
except (ConnectionError, http.client.ImproperConnectionState) as e:
if args.hung_check:
print("Connection error, will retry: ", str(e))
else:
print(".", end="")
sys.stdout.flush()
retry_count -= 1
sleep(0.5)
continue
except TimeoutError:
print("\nConnection timeout, will not retry")
break
except Exception as e:
print("\nUexpected exception, will not retry: ", type(e).__name__, ": ", str(e))
break
print("\nAll connection tries failed")
sys.stdout.flush()
return False
class BuildFlags:
THREAD = "tsan"
ADDRESS = "asan"
UNDEFINED = "ubsan"
MEMORY = "msan"
DEBUG = "debug"
RELEASE = "release"
ORDINARY_DATABASE = "ordinary-database"
POLYMORPHIC_PARTS = "polymorphic-parts"
def collect_build_flags(args):
result = []
value = clickhouse_execute(
args, "SELECT value FROM system.build_options WHERE name = 'CXX_FLAGS'"
)
if b"-fsanitize=thread" in value:
result.append(BuildFlags.THREAD)
elif b"-fsanitize=address" in value:
result.append(BuildFlags.ADDRESS)
elif b"-fsanitize=undefined" in value:
result.append(BuildFlags.UNDEFINED)
elif b"-fsanitize=memory" in value:
result.append(BuildFlags.MEMORY)
value = clickhouse_execute(
args, "SELECT value FROM system.build_options WHERE name = 'BUILD_TYPE'"
)
if b"Debug" in value:
result.append(BuildFlags.DEBUG)
elif b"RelWithDebInfo" in value or b"Release" in value:
result.append(BuildFlags.RELEASE)
value = clickhouse_execute(
args,
"SELECT value FROM system.settings WHERE name = 'allow_deprecated_database_ordinary'",
)
if value == b"1" or args.db_engine == "Ordinary":
result.append(BuildFlags.ORDINARY_DATABASE)
value = int(
clickhouse_execute(
args,
"SELECT value FROM system.merge_tree_settings WHERE name = 'min_bytes_for_wide_part'",
)
)
if value == 0:
result.append(BuildFlags.POLYMORPHIC_PARTS)
use_flags = clickhouse_execute(
args,
"SELECT name FROM system.build_options WHERE name like 'USE_%' AND value in ('ON', '1')",
)
for use_flag in use_flags.strip().splitlines():
use_flag = use_flag.decode().lower()
result.append(use_flag)
system_processor = clickhouse_execute(
args,
"SELECT value FROM system.build_options WHERE name = 'SYSTEM_PROCESSOR' LIMIT 1",
).strip()
if system_processor:
result.append(f"cpu-{system_processor.decode().lower()}")
return result
def collect_changed_merge_tree_settings(args):
changed_settings = (
clickhouse_execute(
args,
"SELECT name FROM system.merge_tree_settings WHERE changed",
)
.strip()
.splitlines()
)
return list(map(lambda s: s.decode(), changed_settings))
def check_table_column(args, database, table, column):
return (
int(
clickhouse_execute(
args,
f"""
SELECT count()
FROM system.columns
WHERE database = '{database}' AND table = '{table}' AND name = '{column}'
""",
)
)
> 0
)
def suite_key_func(item: str) -> Union[float, Tuple[int, str]]:
if args.order == "random":
return random.random()
if -1 == item.find("_"):
return 99998, ""
prefix, suffix = item.split("_", 1)
try:
return int(prefix), suffix
except ValueError:
return 99997, ""
def extract_key(key: str) -> str:
return subprocess.getstatusoutput(
args.extract_from_config + " --try --config " + args.configserver + key
)[1]
def do_run_tests(jobs, test_suite: TestSuite, parallel):
if jobs > 1 and len(test_suite.parallel_tests) > 0:
print(
"Found",
len(test_suite.parallel_tests),
"parallel tests and",
len(test_suite.sequential_tests),
"sequential tests",
)
run_n, run_total = parallel.split("/")
run_n = float(run_n)
run_total = float(run_total)
tests_n = len(test_suite.parallel_tests)
run_total = min(run_total, tests_n)
jobs = min(jobs, tests_n)
run_total = max(jobs, run_total)
batch_size = max(1, len(test_suite.parallel_tests) // jobs)
parallel_tests_array = []
for _ in range(jobs):
parallel_tests_array.append((None, batch_size, test_suite))
try:
with closing(multiprocessing.Pool(processes=jobs)) as pool:
pool.map_async(run_tests_array, parallel_tests_array)
for suit in test_suite.parallel_tests:
queue.put(suit, timeout=args.timeout * 1.1)
for _ in range(jobs):
queue.put(None, timeout=args.timeout * 1.1)
queue.close()
except Full:
print(
"Couldn't put test to the queue within timeout. Server probably hung."
)
print_stacktraces()
queue.close()
pool.join()
run_tests_array(
(test_suite.sequential_tests, len(test_suite.sequential_tests), test_suite)
)
return len(test_suite.sequential_tests) + len(test_suite.parallel_tests)
else:
num_tests = len(test_suite.all_tests)
run_tests_array((test_suite.all_tests, num_tests, test_suite))
return num_tests
def is_test_from_dir(suite_dir, case):
case_file = os.path.join(suite_dir, case)
# We could also test for executable files (os.access(case_file, os.X_OK),
# but it interferes with 01610_client_spawn_editor.editor, which is invoked
# as a query editor in the test, and must be marked as executable.
return os.path.isfile(case_file) and any(
case_file.endswith(suppotred_ext) for suppotred_ext in TEST_FILE_EXTENSIONS
)
def removesuffix(text, *suffixes):
"""
Added in python 3.9
https://www.python.org/dev/peps/pep-0616/
This version can work with several possible suffixes
"""
for suffix in suffixes:
if suffix and text.endswith(suffix):
return text[: -len(suffix)]
return text
def reportCoverageFor(args, what, query, permissive=False):
value = clickhouse_execute(args, query).decode()
if value != "":
print(f"\nThe following {what} were not covered by tests:\n")
print(value)
print("\n")
return permissive
return True
def reportCoverage(args):
clickhouse_execute(args, "SYSTEM FLUSH LOGS")
return (
reportCoverageFor(
args,
"functions",
"""
SELECT name
FROM system.functions
WHERE NOT is_aggregate AND origin = 'System' AND alias_to = ''
AND name NOT IN
(
SELECT arrayJoin(used_functions) FROM system.query_log WHERE event_date >= yesterday()
)
ORDER BY name
""",
True,
)
and reportCoverageFor(
args,
"aggregate functions",
"""
SELECT name
FROM system.functions
WHERE is_aggregate AND origin = 'System' AND alias_to = ''
AND name NOT IN
(
SELECT arrayJoin(used_aggregate_functions) FROM system.query_log WHERE event_date >= yesterday()
)
ORDER BY name
""",
)
and reportCoverageFor(
args,
"aggregate function combinators",
"""
SELECT name
FROM system.aggregate_function_combinators
WHERE NOT is_internal
AND name NOT IN
(
SELECT arrayJoin(used_aggregate_function_combinators) FROM system.query_log WHERE event_date >= yesterday()
)
ORDER BY name
""",
)
and reportCoverageFor(
args,
"data type families",
"""
SELECT name
FROM system.data_type_families
WHERE alias_to = '' AND name NOT LIKE 'Interval%'
AND name NOT IN
(
SELECT arrayJoin(used_data_type_families) FROM system.query_log WHERE event_date >= yesterday()
)
ORDER BY name
""",
)
)
def reportLogStats(args):
query = """
WITH
120 AS mins,
(
SELECT (count(), sum(length(message)))
FROM system.text_log
WHERE (now() - toIntervalMinute(mins)) < event_time
) AS total
SELECT
count() AS count,
round(count / (total.1), 3) AS `count_%`,
formatReadableSize(sum(length(message))) AS size,
round(sum(length(message)) / (total.2), 3) AS `size_%`,
countDistinct(logger_name) AS uniq_loggers,
countDistinct(thread_id) AS uniq_threads,
groupArrayDistinct(toString(level)) AS levels,
round(sum(query_id = '') / count, 3) AS `background_%`,
message_format_string
FROM system.text_log
WHERE (now() - toIntervalMinute(mins)) < event_time
GROUP BY message_format_string
ORDER BY count DESC
LIMIT 100
FORMAT TSVWithNamesAndTypes
"""
value = clickhouse_execute(args, query).decode(errors="replace")
print("\nTop patterns of log messages:\n")
print(value)
print("\n")
query = """
WITH
120 AS mins
SELECT
count() AS count,
substr(replaceRegexpAll(message, '[^A-Za-z]+', ''), 1, 32) AS pattern,
substr(any(message), 1, 256) as runtime_message,
any((extract(source_file, '\/[a-zA-Z0-9_]+\.[a-z]+'), source_line)) as line
FROM system.text_log
WHERE (now() - toIntervalMinute(mins)) < event_time AND message_format_string = ''
GROUP BY pattern
ORDER BY count DESC
LIMIT 30
FORMAT TSVWithNamesAndTypes
"""
value = clickhouse_execute(args, query).decode(errors="replace")
print("\nTop messages without format string (fmt::runtime):\n")
print(value)
print("\n")
query = """
SELECT message_format_string, count(), substr(any(message), 1, 120) AS any_message
FROM system.text_log
WHERE (now() - toIntervalMinute(120)) < event_time
AND (message NOT LIKE (replaceRegexpAll(message_format_string, '{[:.0-9dfx]*}', '%') AS s))
AND (message NOT LIKE concat('%Exception: ', s, '%'))
GROUP BY message_format_string ORDER BY count() DESC LIMIT 20 FORMAT TSVWithNamesAndTypes
"""
value = clickhouse_execute(args, query).decode(errors="replace")
print("\nTop messages that does not match its format string:\n")
print(value)
print("\n")
query = """
WITH ('', '({}) Keys: {}', '({}) {}', 'Aggregating', 'Became leader', 'Cleaning queue', 'Creating set.',
'Cyclic aliases', 'Detaching {}', 'Executing {}', 'Fire events: {}', 'Found part {}', 'Loaded queue',
'No sharding key', 'No tables', 'Query: {}', 'Removed', 'Removed part {}', 'Removing parts.',
'Request URI: {}', 'Sending part {}', 'Sent handshake', 'Starting {}', 'Will mimic {}', 'Writing to {}',
'dropIfEmpty', 'loadAll {}', '{} ({}:{})', '{} -> {}', '{} {}', '{}: {}'
) AS known_short_messages
SELECT count() AS c, message_format_string, substr(any(message), 1, 120)
FROM system.text_log
WHERE (now() - toIntervalMinute(120)) < event_time
AND (length(message_format_string) < 16
OR (length(message_format_string) < 30 AND message ilike '%DB::Exception%'))
AND message_format_string NOT IN known_short_messages
GROUP BY message_format_string ORDER BY c DESC LIMIT 30 FORMAT TSVWithNamesAndTypes
"""
value = clickhouse_execute(args, query).decode(errors="replace")
print("\nTop short messages:\n")
print(value)
print("\n")
query = """
SELECT max((freq, message_format_string)), level
FROM (SELECT count() / (SELECT count() FROM system.text_log
WHERE (now() - toIntervalMinute(120)) < event_time) AS freq,
min(level) AS level, message_format_string FROM system.text_log
WHERE (now() - toIntervalMinute(120)) < event_time
GROUP BY message_format_string ORDER BY freq DESC)
GROUP BY level
"""
value = clickhouse_execute(args, query).decode(errors="replace")
print("\nTop messages by level:\n")
print(value)
print("\n")
def main(args):
global server_died
global stop_time
global exit_code
global server_logs_level
global restarted_tests
if not check_server_started(args):
msg = "Server is not responding. Cannot execute 'SELECT 1' query."
if args.hung_check:
print(msg)
pid = get_server_pid()
print("Got server pid", pid)
print_stacktraces()
raise Exception(msg)
args.build_flags = collect_build_flags(args)
args.changed_merge_tree_settings = collect_changed_merge_tree_settings(args)
args.suppport_system_processes_is_all_data_sent = check_table_column(
args, "system", "processes", "is_all_data_sent"
)
if args.s3_storage and (
BuildFlags.THREAD in args.build_flags or BuildFlags.DEBUG in args.build_flags
):
args.no_random_settings = True
if args.skip:
args.skip = set(args.skip)
base_dir = os.path.abspath(args.queries)
# Keep same default values as in queries/shell_config.sh
os.environ.setdefault("CLICKHOUSE_BINARY", args.binary)
# os.environ.setdefault("CLICKHOUSE_CLIENT", args.client)
os.environ.setdefault("CLICKHOUSE_CONFIG", args.configserver)
if args.configclient:
os.environ.setdefault("CLICKHOUSE_CONFIG_CLIENT", args.configclient)
# Force to print server warnings in stderr
# Shell scripts could change logging level
os.environ.setdefault("CLICKHOUSE_CLIENT_SERVER_LOGS_LEVEL", server_logs_level)
# This code is bad as the time is not monotonic
if args.global_time_limit:
stop_time = time() + args.global_time_limit
if args.zookeeper is None:
args.zookeeper = True
if args.shard is None:
args.shard = bool(extract_key(' --key listen_host | grep -E "127.0.0.2|::"'))
def create_common_database(args, db_name):
create_database_retries = 0
while create_database_retries < MAX_RETRIES:
start_time = datetime.now()
try:
clickhouse_execute(
args,
f"CREATE DATABASE IF NOT EXISTS {db_name} "
f"{get_db_engine(args, db_name)}",
settings=get_create_database_settings(args, None),
)
except HTTPError as e:
total_time = (datetime.now() - start_time).total_seconds()
if not need_retry(args, e.message, e.message, total_time):
break
create_database_retries += 1
try:
if args.database and args.database != "test":
create_common_database(args, args.database)
create_common_database(args, "test")
except Exception as e:
print(f"Failed to create databases for tests: {e}")
server_died.set()
total_tests_run = 0
for suite in sorted(os.listdir(base_dir), key=suite_key_func):
if server_died.is_set():
break
test_suite = TestSuite.read_test_suite(args, suite)
if test_suite is None:
continue
total_tests_run += do_run_tests(args.jobs, test_suite, args.parallel)
if server_died.is_set():
exit_code.value = 1
if args.hung_check:
# Some queries may execute in background for some time after test was finished. This is normal.
for _ in range(1, 60):
processlist = get_processlist_with_stacktraces(args)
if not processlist:
break
sleep(1)
if processlist:
print(
colored(
"\nFound hung queries in processlist:", args, "red", attrs=["bold"]
)
)
print(json.dumps(processlist, indent=4))
print(get_transactions_list(args))
print_stacktraces()
exit_code.value = 1
else:
print(colored("\nNo queries hung.", args, "green", attrs=["bold"]))
if len(restarted_tests) > 0:
print("\nSome tests were restarted:\n")
for test_result in restarted_tests:
print(f"\n{test_result.case_name:72}: ")
# replace it with lowercase to avoid parsing retried tests as failed
for status in TestStatus:
test_result.description = test_result.description.replace(
status.value, status.value.lower()
)
print(test_result.description)
if total_tests_run == 0:
print("No tests were run.")
sys.exit(1)
else:
print("All tests have finished.")
if args.report_logs_stats:
try:
reportLogStats(args)
except Exception as e:
print(f"Failed to get stats about log messages: {e}")
if args.report_coverage and not reportCoverage(args):
exit_code.value = 1
sys.exit(exit_code.value)
def find_binary(name):
if os.access(name, os.X_OK):
return name
paths = os.environ.get("PATH").split(":")
for path in paths:
bin_path = os.path.join(path, name)
if os.access(bin_path, os.X_OK):
return bin_path
# maybe it wasn't in PATH
bin_path = os.path.join("/usr/local/bin", name)
if os.access(bin_path, os.X_OK):
return bin_path
bin_path = os.path.join("/usr/bin", name)
if os.access(bin_path, os.X_OK):
return bin_path
raise Exception(f"{name} was not found in PATH")
def find_clickhouse_command(binary, command):
symlink = binary + "-" + command
if os.access(symlink, os.X_OK):
return symlink
# To avoid requiring symlinks (in case you download binary from CI)
return binary + " " + command
def get_additional_client_options(args):
if args.client_option:
return " ".join("--" + option for option in args.client_option)
return ""
def get_additional_client_options_url(args):
if args.client_option:
return "&".join(args.client_option)
return ""
def parse_args():
parser = ArgumentParser(description="ClickHouse functional tests")
parser.add_argument("-q", "--queries", help="Path to queries dir")
parser.add_argument("--tmp", help="Path to tmp dir")
parser.add_argument(
"-b",
"--binary",
default=find_binary("clickhouse"),
help="Path to clickhouse binary or name of binary in PATH",
)
parser.add_argument(
"-c",
"--client",
help="Path to clickhouse-client, this option is useless"
"name of binary in PATH",
)
parser.add_argument("--extract_from_config", help="extract-from-config program")
parser.add_argument(
"--configclient", help="Client config (if you use not default ports)"
)
parser.add_argument(
"--configserver",
default="/etc/clickhouse-server/config.xml",
help="Preprocessed server config",
)
parser.add_argument(
"-o", "--output", help="Output xUnit compliant test report directory"
)
parser.add_argument(
"-t",
"--timeout",
type=int,
default=600,
help="Timeout for each test case in seconds",
)
parser.add_argument(
"--global_time_limit",
type=int,
help="Stop if executing more than specified time (after current test finished)",
)
parser.add_argument("test", nargs="*", help="Optional test case name regex")
parser.add_argument(
"-d",
"--disabled",
action="store_true",
default=False,
help="Also run disabled tests",
)
parser.add_argument(
"--stop",
action="store_true",
default=None,
dest="stop",
help="Stop on network errors",
)
parser.add_argument(
"--order", default="desc", choices=["asc", "desc", "random"], help="Run order"
)
parser.add_argument(
"--testname",
action="store_true",
default=None,
dest="testname",
help="Make query with test name before test run",
)
parser.add_argument("--hung-check", action="store_true", default=False)
parser.add_argument("--no-left-queries-check", action="store_true", default=False)
parser.add_argument("--force-color", action="store_true", default=False)
parser.add_argument(
"--database", help="Database for tests (random name test_XXXXXX by default)"
)
parser.add_argument(
"--no-drop-if-fail",
action="store_true",
help="Do not drop database for test if test has failed (does not work if reference file mismatch)",
)
parser.add_argument(
"--hide-db-name",
action="store_true",
help='Replace random database name with "default" in stderr',
)
parser.add_argument(
"--parallel", default="1/1", help="One parallel test run number/total"
)
parser.add_argument(
"-j", "--jobs", default=1, nargs="?", type=int, help="Run all tests in parallel"
)
parser.add_argument(
"--test-runs",
default=1,
nargs="?",
type=int,
help="Run each test many times (useful for e.g. flaky check)",
)
parser.add_argument(
"-U",
"--unified",
default=3,
type=int,
help="output NUM lines of unified context",
)
parser.add_argument(
"-r",
"--server-check-retries",
default=180,
type=int,
help="Num of tries to execute SELECT 1 before tests started",
)
parser.add_argument("--db-engine", help="Database engine name")
parser.add_argument(
"--replicated-database",
action="store_true",
default=False,
help="Run tests with Replicated database engine",
)
parser.add_argument(
"--fast-tests-only",
action="store_true",
default=False,
help='Run only fast tests (the tests without the "no-fasttest" tag)',
)
parser.add_argument(
"--no-stateless", action="store_true", help="Disable all stateless tests"
)
parser.add_argument(
"--no-stateful", action="store_true", help="Disable all stateful tests"
)
parser.add_argument("--skip", nargs="+", help="Skip these tests")
parser.add_argument(
"--sequential",
nargs="+",
help="Run these tests sequentially even if --parallel specified",
)
parser.add_argument(
"--no-long", action="store_true", dest="no_long", help="Do not run long tests"
)
parser.add_argument(
"--client-option", nargs="+", help="Specify additional client argument"
)
parser.add_argument(
"--print-time", action="store_true", dest="print_time", help="Print test time"
)
parser.add_argument(
"--check-zookeeper-session",
action="store_true",
help="Check ZooKeeper session uptime to determine if failed test should be retried",
)
parser.add_argument(
"--s3-storage",
action="store_true",
default=False,
help="Run tests over s3 storage",
)
parser.add_argument(
"--no-random-settings",
action="store_true",
default=False,
help="Disable settings randomization",
)
parser.add_argument(
"--no-random-merge-tree-settings",
action="store_true",
default=False,
help="Disable MergeTree settings randomization",
)
parser.add_argument(
"--run-by-hash-num",
type=int,
help="Run tests matching crc32(test_name) % run_by_hash_total == run_by_hash_num",
)
parser.add_argument(
"--run-by-hash-total",
type=int,
help="Total test groups for crc32(test_name) % run_by_hash_total == run_by_hash_num",
)
group = parser.add_mutually_exclusive_group(required=False)
group.add_argument(
"--zookeeper",
action="store_true",
default=None,
dest="zookeeper",
help="Run zookeeper related tests",
)
group.add_argument(
"--no-zookeeper",
action="store_false",
default=None,
dest="zookeeper",
help="Do not run zookeeper related tests",
)
group = parser.add_mutually_exclusive_group(required=False)
group.add_argument(
"--shard",
action="store_true",
default=None,
dest="shard",
help="Run sharding related tests "
"(required to clickhouse-server listen 127.0.0.2 127.0.0.3)",
)
group.add_argument(
"--no-shard",
action="store_false",
default=None,
dest="shard",
help="Do not run shard related tests",
)
group.add_argument(
"--backward-compatibility-check",
action="store_true",
help="Run tests for further backward compatibility testing by ignoring all"
"drop queries in tests for collecting data from new version of server",
)
parser.add_argument(
"--secure",
action="store_true",
default=False,
help="Use secure connection to connect to clickhouse-server",
)
parser.add_argument(
"--max-failures-chain",
default=20,
type=int,
help="Max number of failed tests in a row (stop tests if higher)",
)
parser.add_argument(
"--report-coverage",
action="store_true",
default=False,
help="Check what high-level server components were covered by tests",
)
parser.add_argument(
"--report-logs-stats",
action="store_true",
default=False,
help="Report statistics about log messages",
)
parser.add_argument(
"--no-parallel-replicas",
action="store_true",
default=False,
help="Do not include tests that are not supported with parallel replicas feature",
)
return parser.parse_args()
if __name__ == "__main__":
stop_time = None
exit_code = multiprocessing.Value("i", 0)
server_died = multiprocessing.Event()
stop_tests_triggered_lock = multiprocessing.Lock()
stop_tests_triggered = multiprocessing.Event()
queue = multiprocessing.Queue(maxsize=1)
multiprocessing_manager = multiprocessing.Manager()
restarted_tests = multiprocessing_manager.list()
# Move to a new process group and kill it at exit so that we don't have any
# infinite tests processes left
# (new process group is required to avoid killing some parent processes)
os.setpgid(0, 0)
signal.signal(signal.SIGTERM, signal_handler)
signal.signal(signal.SIGINT, signal_handler)
signal.signal(signal.SIGHUP, signal_handler)
try:
args = parse_args()
except Exception as e:
print(e, file=sys.stderr)
sys.exit(1)
if args.queries and not os.path.isdir(args.queries):
print(
f"Cannot access the specified directory with queries ({args.queries})",
file=sys.stderr,
)
sys.exit(1)
# Autodetect the directory with queries if not specified
if args.queries is None:
args.queries = "queries"
if not os.path.isdir(args.queries):
# If we're running from the repo
args.queries = os.path.join(
os.path.dirname(os.path.abspath(__file__)), "queries"
)
if not os.path.isdir(args.queries):
# Next we're going to try some system directories, don't write 'stdout' files into them.
if args.tmp is None:
args.tmp = "/tmp/clickhouse-test"
args.queries = "/usr/local/share/clickhouse-test/queries"
if not os.path.isdir(args.queries):
args.queries = "/usr/share/clickhouse-test/queries"
if not os.path.isdir(args.queries):
print(
"Failed to detect path to the queries directory. Please specify it with "
"'--queries' option.",
file=sys.stderr,
)
sys.exit(1)
print("Using queries from '" + args.queries + "' directory")
if args.tmp is None:
args.tmp = args.queries
if args.client:
print(
"WARNING: --client option is deprecated and will be removed the the future, use --binary instead",
file=sys.stderr,
)
args.client = find_clickhouse_command(args.binary, "client")
if args.extract_from_config:
print(
"WARNING: --extract_from_config option is deprecated and will be removed the the future",
file=sys.stderr,
)
args.extract_from_config = find_clickhouse_command(args.binary, "extract-from-config")
if args.configclient:
args.client += " --config-file=" + args.configclient
tcp_host = os.getenv("CLICKHOUSE_HOST")
if tcp_host is not None:
args.tcp_host = tcp_host
args.client += f" --host={tcp_host}"
else:
args.tcp_host = "localhost"
tcp_port = os.getenv("CLICKHOUSE_PORT_TCP")
if tcp_port is not None:
args.tcp_port = int(tcp_port)
args.client += f" --port={tcp_port}"
else:
args.tcp_port = 9440 if args.secure else 9000
if args.secure:
os.environ["CLICKHOUSE_PORT_TCP"] = str(args.tcp_port)
http_port = os.getenv("CLICKHOUSE_PORT_HTTP")
if http_port is not None:
args.http_port = int(http_port)
else:
args.http_port = 8443 if args.secure else 8123
os.environ["CLICKHOUSE_PORT_HTTP"] = str(args.http_port)
if args.secure and os.getenv("CLICKHOUSE_PORT_HTTP_PROTO") is None:
os.environ["CLICKHOUSE_PORT_HTTP_PROTO"] = "https"
client_database = os.getenv("CLICKHOUSE_DATABASE")
if client_database is not None:
args.client += f" --database={client_database}"
args.client_database = client_database
else:
args.client_database = "default"
if args.backward_compatibility_check:
args.client += " --fake-drop"
if args.client_option or args.secure:
# Set options for client
if "CLICKHOUSE_CLIENT_OPT" in os.environ:
os.environ["CLICKHOUSE_CLIENT_OPT"] += " "
else:
os.environ["CLICKHOUSE_CLIENT_OPT"] = ""
os.environ["CLICKHOUSE_CLIENT_OPT"] += get_additional_client_options(args)
if args.secure:
os.environ["CLICKHOUSE_CLIENT_OPT"] += " --secure "
# Set options for curl
if "CLICKHOUSE_URL_PARAMS" in os.environ:
os.environ["CLICKHOUSE_URL_PARAMS"] += "&"
else:
os.environ["CLICKHOUSE_URL_PARAMS"] = ""
client_options_query_str = get_additional_client_options_url(args)
args.client_options_query_str = client_options_query_str + "&"
os.environ["CLICKHOUSE_URL_PARAMS"] += client_options_query_str
else:
args.client_options_query_str = ""
if args.jobs is None:
args.jobs = multiprocessing.cpu_count()
if args.db_engine and args.db_engine == "Ordinary":
MESSAGES_TO_RETRY.append(" locking attempt on ")
main(args)
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