mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-09-20 00:30:49 +00:00
356 lines
13 KiB
Python
356 lines
13 KiB
Python
import os
|
|
import time
|
|
|
|
import pytest
|
|
from helpers.client import QueryTimeoutExceedException
|
|
from helpers.cluster import ClickHouseCluster
|
|
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__)
|
|
instance = cluster.add_instance("instance", dictionaries=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 toTimeZone(loading_start_time, 'UTC') FROM system.dictionaries WHERE name='"
|
|
+ dictionary_name
|
|
+ "'"
|
|
).rstrip("\n")
|
|
if s == "1970-01-01 00:00:00":
|
|
return None
|
|
return time.strptime(s, "%Y-%m-%d %H:%M:%S")
|
|
|
|
|
|
def get_last_successful_update_time(dictionary_name):
|
|
s = instance.query(
|
|
"SELECT toTimeZone(last_successful_update_time, 'UTC') FROM system.dictionaries WHERE name='"
|
|
+ dictionary_name
|
|
+ "'"
|
|
).rstrip("\n")
|
|
if s == "1970-01-01 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", f"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 1 second, so the following query fails by timeout.
|
|
with pytest.raises(QueryTimeoutExceedException):
|
|
query("SELECT dictGetInt32('slow', 'a', toUInt64(5))", timeout=1)
|
|
|
|
# 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(1) # 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=1)
|
|
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(1) # 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/dictionaries/slow.xml", "sleep 100", "sleep 0"
|
|
)
|
|
query("SYSTEM RELOAD CONFIG")
|
|
|
|
# This time loading should finish quickly.
|
|
assert get_status("slow") == "LOADED"
|
|
|
|
last_successful_update_time = get_last_successful_update_time("slow")
|
|
assert last_successful_update_time > start_time
|
|
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.
|
|
# FIXME we sleep before this, because Poco 1.x has one-second granularity
|
|
# for mtime, and clickhouse will miss the update if we change the file too
|
|
# soon. Should probably be fixed by switching to use std::filesystem.
|
|
time.sleep(1)
|
|
replace_in_file_in_container(
|
|
"/etc/clickhouse-server/dictionaries/executable.xml", "8", "81"
|
|
)
|
|
replace_in_file_in_container(
|
|
"/etc/clickhouse-server/dictionaries/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.
|
|
time.sleep(1) # see the comment above
|
|
replace_in_file_in_container(
|
|
"/etc/clickhouse-server/dictionaries/executable.xml", "81", "82"
|
|
)
|
|
replace_in_file_in_container(
|
|
"/etc/clickhouse-server/dictionaries/file.txt", "101", "102"
|
|
)
|
|
query("SYSTEM RELOAD DICTIONARY 'file'")
|
|
query("SYSTEM RELOAD DICTIONARY 'executable'")
|
|
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.
|
|
# Wait slightly more, to be sure it did reload.
|
|
time.sleep(1) # see the comment above
|
|
replace_in_file_in_container(
|
|
"/etc/clickhouse-server/dictionaries/executable.xml", "82", "83"
|
|
)
|
|
replace_in_file_in_container(
|
|
"/etc/clickhouse-server/dictionaries/file.txt", "102", "103"
|
|
)
|
|
time.sleep(10)
|
|
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/dictionaries/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/dictionaries/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):
|
|
# 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))"
|
|
)
|
|
|
|
# on sanitizers builds it can return 'FAILED_AND_RELOADING' which is not quite right
|
|
# add retry for these builds
|
|
assert get_status("no_file_2") in ["FAILED", "FAILED_AND_RELOADING"]
|
|
|
|
# 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/dictionaries/no_file_2.txt",
|
|
)
|
|
# Check that file appears in container and wait if needed.
|
|
while not instance.path_exists("/etc/clickhouse-server/dictionaries/no_file_2.txt"):
|
|
time.sleep(1)
|
|
assert "9\t10\n" == instance.exec_in_container(
|
|
["cat", "/etc/clickhouse-server/dictionaries/no_file_2.txt"]
|
|
)
|
|
instance.query("SYSTEM RELOAD DICTIONARY no_file_2")
|
|
instance.query("SELECT dictGetInt32('no_file_2', 'a', toUInt64(9))") == "10\n"
|
|
assert get_status("no_file_2") in ["LOADED", "LOADED_AND_RELOADING"]
|
|
|
|
# Removing the file source should not spoil the loaded dictionary.
|
|
instance.exec_in_container(
|
|
["rm", "/etc/clickhouse-server/dictionaries/no_file_2.txt"]
|
|
)
|
|
time.sleep(6)
|
|
instance.query("SELECT dictGetInt32('no_file_2', 'a', toUInt64(9))") == "10\n"
|
|
assert get_status("no_file_2") in ["LOADED", "LOADED_AND_RELOADING"]
|
|
|
|
|
|
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 = "UNKNOWN_TABLE"
|
|
update_error = "Could not update cache dictionary cache_xypairs now"
|
|
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"
|
|
error = query_and_get_error(
|
|
"SELECT dictGetUInt64('cache_xypairs', 'y', toUInt64(3))"
|
|
)
|
|
assert (expected_error in error) or (update_error in error)
|
|
last_exception = get_last_exception("cache_xypairs")
|
|
assert (expected_error in last_exception) or (update_error in last_exception)
|
|
|
|
# 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);
|
|
"""
|
|
)
|
|
|
|
query("SYSTEM RELOAD DICTIONARY cache_xypairs")
|
|
|
|
# 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") == ""
|