mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-09-21 09:10:48 +00:00
225 lines
8.2 KiB
Python
225 lines
8.2 KiB
Python
import os
|
|
import sys
|
|
import time
|
|
|
|
import pytest
|
|
|
|
sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
|
|
|
|
from helpers.cluster import ClickHouseCluster
|
|
from helpers.network import PartitionManager
|
|
from helpers.test_tools import TSV
|
|
|
|
cluster = ClickHouseCluster(__file__)
|
|
NODES = {'node_' + str(i): None for i in (1, 2, 3)}
|
|
|
|
NODES['node'] = None
|
|
|
|
# Sleep time in milliseconds.
|
|
sleep_time = 30000
|
|
|
|
@pytest.fixture(scope="module")
|
|
def started_cluster():
|
|
NODES['node'] = cluster.add_instance(
|
|
'node', stay_alive=True, main_configs=['configs/remote_servers.xml'], user_configs=['configs/users.xml'])
|
|
|
|
for name in NODES:
|
|
if name != 'node':
|
|
NODES[name] = cluster.add_instance(name, user_configs=['configs/users1.xml'])
|
|
|
|
try:
|
|
cluster.start()
|
|
|
|
for node_id, node in list(NODES.items()):
|
|
node.query('''CREATE TABLE test_hedged (id UInt32, date Date) ENGINE =
|
|
MergeTree() ORDER BY id PARTITION BY toYYYYMM(date)''')
|
|
|
|
node.query("INSERT INTO test_hedged select number, toDate(number) from numbers(100);")
|
|
|
|
|
|
NODES['node'].query('''CREATE TABLE distributed (id UInt32, date Date) ENGINE =
|
|
Distributed('test_cluster', 'default', 'test_hedged')''')
|
|
|
|
yield cluster
|
|
|
|
finally:
|
|
cluster.shutdown()
|
|
|
|
|
|
config = '''<clickhouse>
|
|
<profiles>
|
|
<default>
|
|
<sleep_in_send_tables_status_ms>{sleep_in_send_tables_status_ms}</sleep_in_send_tables_status_ms>
|
|
<sleep_in_send_data_ms>{sleep_in_send_data_ms}</sleep_in_send_data_ms>
|
|
</default>
|
|
</profiles>
|
|
</clickhouse>'''
|
|
|
|
|
|
def check_query(expected_replica, receive_timeout=300):
|
|
NODES['node'].restart_clickhouse()
|
|
|
|
# Without hedged requests select query will last more than 30 seconds,
|
|
# with hedged requests it will last just around 1-2 second
|
|
|
|
start = time.time()
|
|
result = NODES['node'].query("SELECT hostName(), id FROM distributed ORDER BY id LIMIT 1 SETTINGS receive_timeout={}".format(receive_timeout));
|
|
query_time = time.time() - start
|
|
|
|
assert TSV(result) == TSV(expected_replica + "\t0")
|
|
|
|
print("Query time:", query_time)
|
|
assert query_time < 10
|
|
|
|
|
|
def check_settings(node_name, sleep_in_send_tables_status_ms, sleep_in_send_data_ms):
|
|
attempts = 0
|
|
while attempts < 1000:
|
|
setting1 = NODES[node_name].http_query("SELECT value FROM system.settings WHERE name='sleep_in_send_tables_status_ms'")
|
|
setting2 = NODES[node_name].http_query("SELECT value FROM system.settings WHERE name='sleep_in_send_data_ms'")
|
|
if int(setting1) == sleep_in_send_tables_status_ms and int(setting2) == sleep_in_send_data_ms:
|
|
return
|
|
time.sleep(0.1)
|
|
attempts += 1
|
|
|
|
assert attempts < 1000
|
|
|
|
|
|
def check_changing_replica_events(expected_count):
|
|
result = NODES['node'].query("SELECT value FROM system.events WHERE event='HedgedRequestsChangeReplica'")
|
|
|
|
# If server load is high we can see more than expected
|
|
# replica change events, but never less than expected
|
|
assert int(result) >= expected_count
|
|
|
|
|
|
def update_configs(node_1_sleep_in_send_tables_status=0, node_1_sleep_in_send_data=0,
|
|
node_2_sleep_in_send_tables_status=0, node_2_sleep_in_send_data=0,
|
|
node_3_sleep_in_send_tables_status=0, node_3_sleep_in_send_data=0):
|
|
NODES['node_1'].replace_config(
|
|
'/etc/clickhouse-server/users.d/users1.xml',
|
|
config.format(sleep_in_send_tables_status_ms=node_1_sleep_in_send_tables_status, sleep_in_send_data_ms=node_1_sleep_in_send_data))
|
|
|
|
NODES['node_2'].replace_config(
|
|
'/etc/clickhouse-server/users.d/users1.xml',
|
|
config.format(sleep_in_send_tables_status_ms=node_2_sleep_in_send_tables_status, sleep_in_send_data_ms=node_2_sleep_in_send_data))
|
|
|
|
NODES['node_3'].replace_config(
|
|
'/etc/clickhouse-server/users.d/users1.xml',
|
|
config.format(sleep_in_send_tables_status_ms=node_3_sleep_in_send_tables_status, sleep_in_send_data_ms=node_3_sleep_in_send_data))
|
|
|
|
check_settings('node_1', node_1_sleep_in_send_tables_status, node_1_sleep_in_send_data)
|
|
check_settings('node_2', node_2_sleep_in_send_tables_status, node_2_sleep_in_send_data)
|
|
check_settings('node_3', node_3_sleep_in_send_tables_status, node_3_sleep_in_send_data)
|
|
|
|
|
|
def test_stuck_replica(started_cluster):
|
|
update_configs()
|
|
|
|
cluster.pause_container("node_1")
|
|
|
|
check_query(expected_replica="node_2")
|
|
check_changing_replica_events(1)
|
|
|
|
result = NODES['node'].query("SELECT slowdowns_count FROM system.clusters WHERE cluster='test_cluster' and host_name='node_1'")
|
|
|
|
assert TSV(result) == TSV("1")
|
|
|
|
result = NODES['node'].query("SELECT hostName(), id FROM distributed ORDER BY id LIMIT 1");
|
|
|
|
assert TSV(result) == TSV("node_2\t0")
|
|
|
|
# Check that we didn't choose node_1 first again and slowdowns_count didn't increase.
|
|
result = NODES['node'].query("SELECT slowdowns_count FROM system.clusters WHERE cluster='test_cluster' and host_name='node_1'")
|
|
|
|
assert TSV(result) == TSV("1")
|
|
|
|
cluster.unpause_container("node_1")
|
|
|
|
|
|
def test_long_query(started_cluster):
|
|
update_configs()
|
|
|
|
# Restart to reset pool states.
|
|
NODES['node'].restart_clickhouse()
|
|
|
|
result = NODES['node'].query("select hostName(), max(id + sleep(1.5)) from distributed settings max_block_size = 1, max_threads = 1;")
|
|
assert TSV(result) == TSV("node_1\t99")
|
|
|
|
NODES['node'].query("INSERT INTO distributed select number, toDate(number) from numbers(100);")
|
|
|
|
|
|
def test_send_table_status_sleep(started_cluster):
|
|
update_configs(node_1_sleep_in_send_tables_status=sleep_time)
|
|
check_query(expected_replica="node_2")
|
|
check_changing_replica_events(1)
|
|
|
|
|
|
def test_send_table_status_sleep2(started_cluster):
|
|
update_configs(node_1_sleep_in_send_tables_status=sleep_time, node_2_sleep_in_send_tables_status=sleep_time)
|
|
check_query(expected_replica="node_3")
|
|
check_changing_replica_events(2)
|
|
|
|
|
|
def test_send_data(started_cluster):
|
|
update_configs(node_1_sleep_in_send_data=sleep_time)
|
|
check_query(expected_replica="node_2")
|
|
check_changing_replica_events(1)
|
|
|
|
|
|
def test_send_data2(started_cluster):
|
|
update_configs(node_1_sleep_in_send_data=sleep_time, node_2_sleep_in_send_data=sleep_time)
|
|
check_query(expected_replica="node_3")
|
|
check_changing_replica_events(2)
|
|
|
|
|
|
def test_combination1(started_cluster):
|
|
update_configs(node_1_sleep_in_send_tables_status=sleep_time, node_2_sleep_in_send_data=sleep_time)
|
|
check_query(expected_replica="node_3")
|
|
check_changing_replica_events(2)
|
|
|
|
|
|
def test_combination2(started_cluster):
|
|
update_configs(node_1_sleep_in_send_data=sleep_time, node_2_sleep_in_send_tables_status=sleep_time)
|
|
check_query(expected_replica="node_3")
|
|
check_changing_replica_events(2)
|
|
|
|
|
|
def test_combination3(started_cluster):
|
|
update_configs(node_1_sleep_in_send_data=sleep_time,
|
|
node_2_sleep_in_send_tables_status=1000,
|
|
node_3_sleep_in_send_data=sleep_time)
|
|
check_query(expected_replica="node_2")
|
|
check_changing_replica_events(3)
|
|
|
|
|
|
def test_combination4(started_cluster):
|
|
update_configs(node_1_sleep_in_send_tables_status=1000,
|
|
node_1_sleep_in_send_data=sleep_time,
|
|
node_2_sleep_in_send_tables_status=1000,
|
|
node_3_sleep_in_send_tables_status=1000)
|
|
check_query(expected_replica="node_2")
|
|
check_changing_replica_events(4)
|
|
|
|
|
|
def test_receive_timeout1(started_cluster):
|
|
# Check the situation when first two replicas get receive timeout
|
|
# in establishing connection, but the third replica is ok.
|
|
update_configs(node_1_sleep_in_send_tables_status=3000,
|
|
node_2_sleep_in_send_tables_status=3000,
|
|
node_3_sleep_in_send_data=1000)
|
|
check_query(expected_replica="node_3", receive_timeout=2)
|
|
check_changing_replica_events(2)
|
|
|
|
|
|
def test_receive_timeout2(started_cluster):
|
|
# Check the situation when first replica get receive timeout
|
|
# in packet receiving but there are replicas in process of
|
|
# connection establishing.
|
|
update_configs(node_1_sleep_in_send_data=4000,
|
|
node_2_sleep_in_send_tables_status=2000,
|
|
node_3_sleep_in_send_tables_status=2000)
|
|
check_query(expected_replica="node_2", receive_timeout=3)
|
|
check_changing_replica_events(3)
|
|
|