ClickHouse/tests/integration/test_reload_clusters_config/test.py
2021-03-13 00:17:19 +03:00

236 lines
6.4 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__)
node = cluster.add_instance('node', with_zookeeper=True, main_configs=['configs/remote_servers.xml'])
node_1 = cluster.add_instance('node_1', with_zookeeper=True)
node_2 = cluster.add_instance('node_2', with_zookeeper=True)
@pytest.fixture(scope="module")
def started_cluster():
try:
cluster.start()
node.query('''CREATE TABLE distributed (id UInt32) ENGINE =
Distributed('test_cluster', 'default', 'replicated')''')
node.query('''CREATE TABLE distributed2 (id UInt32) ENGINE =
Distributed('test_cluster2', 'default', 'replicated')''')
cluster.pause_container('node_1')
cluster.pause_container('node_2')
yield cluster
finally:
cluster.shutdown()
base_config = '''
<yandex>
<remote_servers>
<test_cluster>
<shard>
<internal_replication>true</internal_replication>
<replica>
<host>node_1</host>
<port>9000</port>
</replica>
<replica>
<host>node_2</host>
<port>9000</port>
</replica>
</shard>
</test_cluster>
<test_cluster2>
<shard>
<internal_replication>true</internal_replication>
<replica>
<host>node_1</host>
<port>9000</port>
</replica>
<replica>
<host>node_2</host>
<port>9000</port>
</replica>
</shard>
</test_cluster2>
</remote_servers>
</yandex>
'''
test_config1 = '''
<yandex>
<remote_servers>
<test_cluster>
<shard>
<internal_replication>true</internal_replication>
<replica>
<host>node_1</host>
<port>9000</port>
</replica>
</shard>
</test_cluster>
<test_cluster2>
<shard>
<internal_replication>true</internal_replication>
<replica>
<host>node_1</host>
<port>9000</port>
</replica>
<replica>
<host>node_2</host>
<port>9000</port>
</replica>
</shard>
</test_cluster2>
</remote_servers>
</yandex>
'''
test_config2 = '''
<yandex>
<remote_servers>
<test_cluster>
<shard>
<internal_replication>true</internal_replication>
<replica>
<host>node_1</host>
<port>9000</port>
</replica>
<replica>
<host>node_2</host>
<port>9000</port>
</replica>
</shard>
</test_cluster>
</remote_servers>
</yandex>
'''
test_config3 = '''
<yandex>
<remote_servers>
<test_cluster>
<shard>
<internal_replication>true</internal_replication>
<replica>
<host>node_1</host>
<port>9000</port>
</replica>
<replica>
<host>node_2</host>
<port>9000</port>
</replica>
</shard>
</test_cluster>
<test_cluster2>
<shard>
<internal_replication>true</internal_replication>
<replica>
<host>node_1</host>
<port>9000</port>
</replica>
<replica>
<host>node_2</host>
<port>9000</port>
</replica>
</shard>
</test_cluster2>
<test_cluster3>
<shard>
<internal_replication>true</internal_replication>
<replica>
<host>node_1</host>
<port>9000</port>
</replica>
</shard>
</test_cluster3>
</remote_servers>
</yandex>
'''
def send_repeated_query(table, count=5):
for i in range(count):
node.query_and_get_error("SELECT count() FROM {} SETTINGS receive_timeout=1".format(table))
def get_errors_count(cluster, host_name="node_1"):
return int(node.query("SELECT errors_count FROM system.clusters WHERE cluster='{}' and host_name='{}'".format(cluster, host_name)))
def set_config(config):
node.replace_config("/etc/clickhouse-server/config.d/remote_servers.xml", config)
node.query("SYSTEM RELOAD CONFIG")
def test_simple_reload(started_cluster):
send_repeated_query("distributed")
assert get_errors_count("test_cluster") > 0
node.query("SYSTEM RELOAD CONFIG")
assert get_errors_count("test_cluster") > 0
def test_update_one_cluster(started_cluster):
send_repeated_query("distributed")
send_repeated_query("distributed2")
assert get_errors_count("test_cluster") > 0
assert get_errors_count("test_cluster2") > 0
set_config(test_config1)
assert get_errors_count("test_cluster") == 0
assert get_errors_count("test_cluster2") > 0
set_config(base_config)
def test_delete_cluster(started_cluster):
send_repeated_query("distributed")
send_repeated_query("distributed2")
assert get_errors_count("test_cluster") > 0
assert get_errors_count("test_cluster2") > 0
set_config(test_config2)
assert get_errors_count("test_cluster") > 0
result = node.query("SELECT * FROM system.clusters WHERE cluster='test_cluster2'")
assert result == ''
set_config(base_config)
def test_add_cluster(started_cluster):
send_repeated_query("distributed")
send_repeated_query("distributed2")
assert get_errors_count("test_cluster") > 0
assert get_errors_count("test_cluster2") > 0
set_config(test_config3)
assert get_errors_count("test_cluster") > 0
assert get_errors_count("test_cluster2") > 0
result = node.query("SELECT * FROM system.clusters WHERE cluster='test_cluster3'")
assert result != ''
set_config(base_config)