mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-18 05:32:52 +00:00
242 lines
11 KiB
Python
242 lines
11 KiB
Python
import pytest
|
|
import os
|
|
import time
|
|
from helpers.cluster import ClickHouseCluster
|
|
from helpers.client import QueryTimeoutExceedException
|
|
from helpers.test_tools import assert_eq_with_retry
|
|
|
|
SCRIPT_DIR = os.path.dirname(os.path.realpath(__file__))
|
|
DICTIONARY_FILES = ['configs/dictionaries/cache_xypairs.xml', 'configs/dictionaries/executable.xml', 'configs/dictionaries/file.xml', 'configs/dictionaries/file.txt', 'configs/dictionaries/slow.xml']
|
|
|
|
cluster = ClickHouseCluster(__file__, base_configs_dir=os.path.join(SCRIPT_DIR, 'configs'))
|
|
instance = cluster.add_instance('instance', main_configs=DICTIONARY_FILES)
|
|
|
|
|
|
@pytest.fixture(scope="module")
|
|
def started_cluster():
|
|
try:
|
|
cluster.start()
|
|
instance.query("CREATE DATABASE IF NOT EXISTS test")
|
|
|
|
yield cluster
|
|
|
|
finally:
|
|
cluster.shutdown()
|
|
|
|
|
|
def get_status(dictionary_name):
|
|
return instance.query("SELECT status FROM system.dictionaries WHERE name='" + dictionary_name + "'").rstrip("\n")
|
|
|
|
|
|
def get_last_exception(dictionary_name):
|
|
return instance.query("SELECT last_exception FROM system.dictionaries WHERE name='" + dictionary_name + "'").rstrip("\n").replace("\\'", "'")
|
|
|
|
|
|
def get_loading_start_time(dictionary_name):
|
|
s = instance.query("SELECT loading_start_time FROM system.dictionaries WHERE name='" + dictionary_name + "'").rstrip("\n")
|
|
if s == "0000-00-00 00:00:00":
|
|
return None
|
|
return time.strptime(s, "%Y-%m-%d %H:%M:%S")
|
|
|
|
|
|
def get_loading_duration(dictionary_name):
|
|
return float(instance.query("SELECT loading_duration FROM system.dictionaries WHERE name='" + dictionary_name + "'"))
|
|
|
|
|
|
def replace_in_file_in_container(file_name, what, replace_with):
|
|
instance.exec_in_container('sed -i "s/' + what + '/' + replace_with + '/g" ' + file_name)
|
|
|
|
|
|
def test_reload_while_loading(started_cluster):
|
|
query = instance.query
|
|
|
|
# dictionaries_lazy_load == false, so this dictionary is not loaded.
|
|
assert get_status('slow') == "NOT_LOADED"
|
|
assert get_loading_duration('slow') == 0
|
|
|
|
# It's not possible to get a value from the dictionary within 0.5 second, so the following query fails by timeout.
|
|
with pytest.raises(QueryTimeoutExceedException):
|
|
query("SELECT dictGetInt32('slow', 'a', toUInt64(5))", timeout = 0.5)
|
|
|
|
# The dictionary is now loading.
|
|
assert get_status('slow') == "LOADING"
|
|
start_time, duration = get_loading_start_time('slow'), get_loading_duration('slow')
|
|
assert duration > 0
|
|
|
|
time.sleep(0.5) # Still loading.
|
|
assert get_status('slow') == "LOADING"
|
|
prev_start_time, prev_duration = start_time, duration
|
|
start_time, duration = get_loading_start_time('slow'), get_loading_duration('slow')
|
|
assert start_time == prev_start_time
|
|
assert duration >= prev_duration
|
|
|
|
# SYSTEM RELOAD DICTIONARY should restart loading.
|
|
with pytest.raises(QueryTimeoutExceedException):
|
|
query("SYSTEM RELOAD DICTIONARY 'slow'", timeout = 0.5)
|
|
assert get_status('slow') == "LOADING"
|
|
prev_start_time, prev_duration = start_time, duration
|
|
start_time, duration = get_loading_start_time('slow'), get_loading_duration('slow')
|
|
assert start_time > prev_start_time
|
|
assert duration < prev_duration
|
|
|
|
time.sleep(0.5) # Still loading.
|
|
assert get_status('slow') == "LOADING"
|
|
prev_start_time, prev_duration = start_time, duration
|
|
start_time, duration = get_loading_start_time('slow'), get_loading_duration('slow')
|
|
assert start_time == prev_start_time
|
|
assert duration >= prev_duration
|
|
|
|
# Changing the configuration file should restart loading again.
|
|
replace_in_file_in_container('/etc/clickhouse-server/config.d/slow.xml', 'sleep 100', 'sleep 0')
|
|
time.sleep(5) # Configuration files are reloaded once in 5 seconds.
|
|
|
|
# This time loading should finish quickly.
|
|
assert get_status('slow') == "LOADED"
|
|
assert query("SELECT dictGetInt32('slow', 'a', toUInt64(5))") == "6\n"
|
|
|
|
|
|
def test_reload_after_loading(started_cluster):
|
|
query = instance.query
|
|
|
|
assert query("SELECT dictGetInt32('executable', 'a', toUInt64(7))") == "8\n"
|
|
assert query("SELECT dictGetInt32('file', 'a', toUInt64(9))") == "10\n"
|
|
|
|
# Change the dictionaries' data.
|
|
replace_in_file_in_container('/etc/clickhouse-server/config.d/executable.xml', '8', '81')
|
|
replace_in_file_in_container('/etc/clickhouse-server/config.d/file.txt', '10', '101')
|
|
|
|
# SYSTEM RELOAD 'name' reloads only the specified dictionary.
|
|
query("SYSTEM RELOAD DICTIONARY 'executable'")
|
|
assert query("SELECT dictGetInt32('executable', 'a', toUInt64(7))") == "81\n"
|
|
assert query("SELECT dictGetInt32('file', 'a', toUInt64(9))") == "10\n"
|
|
|
|
query("SYSTEM RELOAD DICTIONARY 'file'")
|
|
assert query("SELECT dictGetInt32('executable', 'a', toUInt64(7))") == "81\n"
|
|
assert query("SELECT dictGetInt32('file', 'a', toUInt64(9))") == "101\n"
|
|
|
|
# SYSTEM RELOAD DICTIONARIES reloads all loaded dictionaries.
|
|
replace_in_file_in_container('/etc/clickhouse-server/config.d/executable.xml', '81', '82')
|
|
replace_in_file_in_container('/etc/clickhouse-server/config.d/file.txt', '101', '102')
|
|
query("SYSTEM RELOAD DICTIONARIES")
|
|
assert query("SELECT dictGetInt32('executable', 'a', toUInt64(7))") == "82\n"
|
|
assert query("SELECT dictGetInt32('file', 'a', toUInt64(9))") == "102\n"
|
|
|
|
# Configuration files are reloaded and lifetimes are checked automatically once in 5 seconds.
|
|
replace_in_file_in_container('/etc/clickhouse-server/config.d/executable.xml', '82', '83')
|
|
replace_in_file_in_container('/etc/clickhouse-server/config.d/file.txt', '102', '103')
|
|
time.sleep(5)
|
|
assert query("SELECT dictGetInt32('file', 'a', toUInt64(9))") == "103\n"
|
|
assert query("SELECT dictGetInt32('executable', 'a', toUInt64(7))") == "83\n"
|
|
|
|
|
|
def test_reload_after_fail_by_system_reload(started_cluster):
|
|
query = instance.query
|
|
|
|
# dictionaries_lazy_load == false, so this dictionary is not loaded.
|
|
assert get_status("no_file") == "NOT_LOADED"
|
|
|
|
# We expect an error because the file source doesn't exist.
|
|
no_such_file_error = "No such file"
|
|
assert no_such_file_error in instance.query_and_get_error("SELECT dictGetInt32('no_file', 'a', toUInt64(9))")
|
|
assert get_status("no_file") == "FAILED"
|
|
|
|
# SYSTEM RELOAD should not change anything now, the status is still FAILED.
|
|
assert no_such_file_error in instance.query_and_get_error("SYSTEM RELOAD DICTIONARY 'no_file'")
|
|
assert no_such_file_error in instance.query_and_get_error("SELECT dictGetInt32('no_file', 'a', toUInt64(9))")
|
|
assert get_status("no_file") == "FAILED"
|
|
|
|
# Creating the file source makes the dictionary able to load.
|
|
instance.copy_file_to_container(os.path.join(SCRIPT_DIR, "configs/dictionaries/file.txt"), "/etc/clickhouse-server/config.d/no_file.txt")
|
|
query("SYSTEM RELOAD DICTIONARY 'no_file'")
|
|
query("SELECT dictGetInt32('no_file', 'a', toUInt64(9))") == "10\n"
|
|
assert get_status("no_file") == "LOADED"
|
|
|
|
# Removing the file source should not spoil the loaded dictionary.
|
|
instance.exec_in_container("rm /etc/clickhouse-server/config.d/no_file.txt")
|
|
assert no_such_file_error in instance.query_and_get_error("SYSTEM RELOAD DICTIONARY 'no_file'")
|
|
query("SELECT dictGetInt32('no_file', 'a', toUInt64(9))") == "10\n"
|
|
assert get_status("no_file") == "LOADED"
|
|
|
|
|
|
def test_reload_after_fail_by_timer(started_cluster):
|
|
query = instance.query
|
|
|
|
# dictionaries_lazy_load == false, so this dictionary is not loaded.
|
|
assert get_status("no_file_2") == "NOT_LOADED"
|
|
|
|
# We expect an error because the file source doesn't exist.
|
|
expected_error = "No such file"
|
|
assert expected_error in instance.query_and_get_error("SELECT dictGetInt32('no_file_2', 'a', toUInt64(9))")
|
|
assert get_status("no_file_2") == "FAILED"
|
|
|
|
# Passed time should not change anything now, the status is still FAILED.
|
|
time.sleep(6);
|
|
assert expected_error in instance.query_and_get_error("SELECT dictGetInt32('no_file_2', 'a', toUInt64(9))")
|
|
assert get_status("no_file_2") == "FAILED"
|
|
|
|
# Creating the file source makes the dictionary able to load.
|
|
instance.copy_file_to_container(os.path.join(SCRIPT_DIR, "configs/dictionaries/file.txt"), "/etc/clickhouse-server/config.d/no_file_2.txt")
|
|
time.sleep(6);
|
|
query("SELECT dictGetInt32('no_file_2', 'a', toUInt64(9))") == "10\n"
|
|
assert get_status("no_file_2") == "LOADED"
|
|
|
|
# Removing the file source should not spoil the loaded dictionary.
|
|
instance.exec_in_container("rm /etc/clickhouse-server/config.d/no_file_2.txt")
|
|
time.sleep(6);
|
|
query("SELECT dictGetInt32('no_file_2', 'a', toUInt64(9))") == "10\n"
|
|
assert get_status("no_file_2") == "LOADED"
|
|
|
|
|
|
def test_reload_after_fail_in_cache_dictionary(started_cluster):
|
|
query = instance.query
|
|
query_and_get_error = instance.query_and_get_error
|
|
|
|
# Can't get a value from the cache dictionary because the source (table `test.xypairs`) doesn't respond.
|
|
expected_error = "Table test.xypairs doesn't exist"
|
|
assert expected_error in query_and_get_error("SELECT dictGetUInt64('cache_xypairs', 'y', toUInt64(1))")
|
|
assert get_status("cache_xypairs") == "LOADED"
|
|
assert expected_error in get_last_exception("cache_xypairs")
|
|
|
|
# Create table `test.xypairs`.
|
|
query('''
|
|
DROP TABLE IF EXISTS test.xypairs;
|
|
CREATE TABLE test.xypairs (x UInt64, y UInt64) ENGINE=Log;
|
|
INSERT INTO test.xypairs VALUES (1, 56), (3, 78);
|
|
''')
|
|
|
|
# Cache dictionary now works.
|
|
assert_eq_with_retry(instance, "SELECT dictGet('cache_xypairs', 'y', toUInt64(1))", "56", ignore_error=True)
|
|
query("SELECT dictGet('cache_xypairs', 'y', toUInt64(2))") == "0"
|
|
assert get_last_exception("cache_xypairs") == ""
|
|
|
|
# Drop table `test.xypairs`.
|
|
query('DROP TABLE test.xypairs')
|
|
|
|
# Values are cached so we can get them.
|
|
query("SELECT dictGet('cache_xypairs', 'y', toUInt64(1))") == "56"
|
|
query("SELECT dictGet('cache_xypairs', 'y', toUInt64(2))") == "0"
|
|
assert get_last_exception("cache_xypairs") == ""
|
|
|
|
# But we can't get a value from the source table which isn't cached.
|
|
assert expected_error in query_and_get_error("SELECT dictGetUInt64('cache_xypairs', 'y', toUInt64(3))")
|
|
assert expected_error in get_last_exception("cache_xypairs")
|
|
|
|
# Passed time should not spoil the cache.
|
|
time.sleep(5);
|
|
query("SELECT dictGet('cache_xypairs', 'y', toUInt64(1))") == "56"
|
|
query("SELECT dictGet('cache_xypairs', 'y', toUInt64(2))") == "0"
|
|
assert expected_error in query_and_get_error("SELECT dictGetUInt64('cache_xypairs', 'y', toUInt64(3))")
|
|
assert expected_error in get_last_exception("cache_xypairs")
|
|
|
|
# Create table `test.xypairs` again with changed values.
|
|
query('''
|
|
CREATE TABLE test.xypairs (x UInt64, y UInt64) ENGINE=Log;
|
|
INSERT INTO test.xypairs VALUES (1, 57), (3, 79);
|
|
''')
|
|
|
|
# The cache dictionary returns new values now.
|
|
assert_eq_with_retry(instance, "SELECT dictGet('cache_xypairs', 'y', toUInt64(1))", "57")
|
|
query("SELECT dictGet('cache_xypairs', 'y', toUInt64(2))") == "0"
|
|
query("SELECT dictGet('cache_xypairs', 'y', toUInt64(3))") == "79"
|
|
assert get_last_exception("cache_xypairs") == ""
|