mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-14 11:33:46 +00:00
96 lines
2.9 KiB
Python
96 lines
2.9 KiB
Python
#!/usr/bin/env python3
|
|
|
|
import random
|
|
import string
|
|
import time
|
|
|
|
import pytest
|
|
from helpers.cluster import ClickHouseCluster
|
|
from helpers.network import PartitionManager
|
|
|
|
cluster = ClickHouseCluster(__file__)
|
|
node1 = cluster.add_instance(
|
|
'node1', with_zookeeper=True,
|
|
main_configs=['configs/server.xml'])
|
|
|
|
node2 = cluster.add_instance(
|
|
'node2', with_zookeeper=True,
|
|
main_configs=['configs/server.xml'])
|
|
|
|
|
|
@pytest.fixture(scope="module")
|
|
def started_cluster():
|
|
try:
|
|
cluster.start()
|
|
|
|
yield cluster
|
|
|
|
finally:
|
|
cluster.shutdown()
|
|
|
|
|
|
def get_random_string(length):
|
|
return ''.join(random.choice(string.ascii_uppercase + string.digits) for _ in range(length))
|
|
|
|
|
|
def test_no_stall(started_cluster):
|
|
for instance in started_cluster.instances.values():
|
|
instance.query("""
|
|
CREATE TABLE t (key UInt64, data String)
|
|
ENGINE = ReplicatedMergeTree('/clickhouse/test/t', '{instance}')
|
|
ORDER BY tuple()
|
|
PARTITION BY key""")
|
|
|
|
# Pause node3 until the test setup is prepared
|
|
node2.query("SYSTEM STOP FETCHES t")
|
|
|
|
node1.query("INSERT INTO t SELECT 1, '{}' FROM numbers(500)".format(get_random_string(104857)))
|
|
node1.query("INSERT INTO t SELECT 2, '{}' FROM numbers(500)".format(get_random_string(104857)))
|
|
|
|
with PartitionManager() as pm:
|
|
pm.add_network_delay(node1, 2000)
|
|
node2.query("SYSTEM START FETCHES t")
|
|
|
|
# Wait for timeout exceptions to confirm that timeout is triggered.
|
|
while True:
|
|
conn_timeout_exceptions = int(node2.query(
|
|
"""
|
|
SELECT count()
|
|
FROM system.replication_queue
|
|
WHERE last_exception LIKE '%connect timed out%'
|
|
"""))
|
|
|
|
if conn_timeout_exceptions >= 2:
|
|
break
|
|
|
|
time.sleep(0.1)
|
|
|
|
print("Connection timeouts tested!")
|
|
|
|
# Increase connection timeout and wait for receive timeouts.
|
|
node2.query("""
|
|
ALTER TABLE t
|
|
MODIFY SETTING replicated_fetches_http_connection_timeout = 30,
|
|
replicated_fetches_http_receive_timeout = 1""")
|
|
|
|
while True:
|
|
timeout_exceptions = int(node2.query(
|
|
"""
|
|
SELECT count()
|
|
FROM system.replication_queue
|
|
WHERE last_exception LIKE '%e.displayText() = Timeout%'
|
|
AND last_exception NOT LIKE '%connect timed out%'
|
|
""").strip())
|
|
|
|
if timeout_exceptions >= 2:
|
|
break
|
|
|
|
time.sleep(0.1)
|
|
|
|
for instance in started_cluster.instances.values():
|
|
# Workaround for DROP TABLE not finishing if it is started while table is readonly.
|
|
instance.query("SYSTEM RESTART REPLICA t")
|
|
|
|
# Cleanup data directory from test results archive.
|
|
instance.query("DROP TABLE t SYNC")
|