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Merge pull request #14323 from qoega/try-dns-fix

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Add tag pass for integration base image. Add explicit dns options for docker-compose.
This commit is contained in:
Ilya Yatsishin 2020-09-03 11:27:24 +03:00 committed by GitHub
commit 2b8ad576cc
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GPG Key ID: 4AEE18F83AFDEB23
20 changed files with 66 additions and 41 deletions
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1
programs/server/Server.cpp
View File

@ -716,6 +716,7 @@ int Server::main(const std::vector<std::string> & /*args*/)
{
/// Disable DNS caching at all
DNSResolver::instance().setDisableCacheFlag();
LOG_DEBUG(log, "DNS caching disabled");
}
else
{

1
src/Interpreters/DNSCacheUpdater.cpp
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@ -42,6 +42,7 @@ void DNSCacheUpdater::run()
void DNSCacheUpdater::start()
{
LOG_INFO(&Poco::Logger::get("DNSCacheUpdater"), "Update period {} seconds", update_period_seconds);
task_handle->activateAndSchedule();
}

23
tests/integration/helpers/cluster.py
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@ -111,6 +111,7 @@ class ClickHouseCluster:
custom_dockerd_host = custom_dockerd_host or os.environ.get('CLICKHOUSE_TESTS_DOCKERD_HOST')
self.docker_api_version = os.environ.get("DOCKER_API_VERSION")
self.docker_base_tag = os.environ.get("DOCKER_BASE_TAG")
self.base_cmd = ['docker-compose']
if custom_dockerd_host:
@ -165,7 +166,7 @@ class ClickHouseCluster:
with_zookeeper=False, with_mysql=False, with_kafka=False, with_rabbitmq=False, clickhouse_path_dir=None,
with_odbc_drivers=False, with_postgres=False, with_hdfs=False, with_mongo=False,
with_redis=False, with_minio=False, with_cassandra=False,
hostname=None, env_variables=None, image="yandex/clickhouse-integration-test",
hostname=None, env_variables=None, image="yandex/clickhouse-integration-test", tag=None,
stay_alive=False, ipv4_address=None, ipv6_address=None, with_installed_binary=False, tmpfs=None,
zookeeper_docker_compose_path=None, zookeeper_use_tmpfs=True, minio_certs_dir=None):
"""Add an instance to the cluster.
@ -183,13 +184,16 @@ class ClickHouseCluster:
if name in self.instances:
raise Exception("Can\'t add instance `%s': there is already an instance with the same name!" % name)
if tag is None:
tag = self.docker_base_tag
instance = ClickHouseInstance(
self, self.base_dir, name, config_dir, main_configs or [], user_configs or [], macros or {},
with_zookeeper,
self.zookeeper_config_path, with_mysql, with_kafka, with_rabbitmq, with_mongo, with_redis, with_minio, with_cassandra,
self.base_configs_dir, self.server_bin_path,
self.odbc_bridge_bin_path, clickhouse_path_dir, with_odbc_drivers, hostname=hostname,
env_variables=env_variables or {}, image=image, stay_alive=stay_alive, ipv4_address=ipv4_address,
env_variables=env_variables or {}, image=image, tag=tag, stay_alive=stay_alive, ipv4_address=ipv4_address,
ipv6_address=ipv6_address,
with_installed_binary=with_installed_binary, tmpfs=tmpfs or [])
@ -704,7 +708,7 @@ DOCKER_COMPOSE_TEMPLATE = '''
version: '2.3'
services:
{name}:
image: {image}
image: {image}:{tag}
hostname: {hostname}
volumes:
- {configs_dir}:/etc/clickhouse-server/
@ -723,6 +727,11 @@ services:
- {env_file}
security_opt:
- label:disable
dns_opt:
- attempts:2
- timeout:1
- inet6
- rotate
{networks}
{app_net}
{ipv4_address}
@ -736,10 +745,10 @@ class ClickHouseInstance:
def __init__(
self, cluster, base_path, name, custom_config_dir, custom_main_configs, custom_user_configs, macros,
with_zookeeper, zookeeper_config_path, with_mysql, with_kafka, with_rabbitmq, with_mongo, with_redis, with_minio, with_cassandra,
base_configs_dir, server_bin_path, odbc_bridge_bin_path,
with_zookeeper, zookeeper_config_path, with_mysql, with_kafka, with_rabbitmq, with_mongo,
with_redis, with_minio, with_cassandra, base_configs_dir, server_bin_path, odbc_bridge_bin_path,
clickhouse_path_dir, with_odbc_drivers, hostname=None, env_variables=None,
image="yandex/clickhouse-integration-test",
image="yandex/clickhouse-integration-test", tag="latest",
stay_alive=False, ipv4_address=None, ipv6_address=None, with_installed_binary=False, tmpfs=None):
self.name = name
@ -783,6 +792,7 @@ class ClickHouseInstance:
self.client = None
self.default_timeout = 20.0 # 20 sec
self.image = image
self.tag = tag
self.stay_alive = stay_alive
self.ipv4_address = ipv4_address
self.ipv6_address = ipv6_address
@ -1160,6 +1170,7 @@ class ClickHouseInstance:
with open(self.docker_compose_path, 'w') as docker_compose:
docker_compose.write(DOCKER_COMPOSE_TEMPLATE.format(
image=self.image,
tag=self.tag,
name=self.name,
hostname=self.hostname,
binary_volume=binary_volume,

2
tests/integration/runner
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@ -154,6 +154,8 @@ if __name__ == "__main__":
env_tags += "-e {}={} ".format("DOCKER_MYSQL_PHP_CLIENT_TAG", tag)
elif image == "yandex/clickhouse-postgresql-java-client":
env_tags += "-e {}={} ".format("DOCKER_POSTGRESQL_JAVA_CLIENT_TAG", tag)
elif image == "yandex/clickhouse-integration-test":
env_tags += "-e {}={}".format("DOCKER_BASE_TAG", tag)
else:
logging.info("Unknown image {}".format(image))

16
tests/integration/test_adaptive_granularity/test.py
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@ -12,20 +12,20 @@ cluster = ClickHouseCluster(__file__)
node1 = cluster.add_instance('node1', config_dir="configs", main_configs=['configs/remote_servers.xml', 'configs/log_conf.xml'], with_zookeeper=True)
node2 = cluster.add_instance('node2', config_dir="configs", main_configs=['configs/remote_servers.xml', 'configs/log_conf.xml'], with_zookeeper=True)
node3 = cluster.add_instance('node3', config_dir="configs", main_configs=['configs/remote_servers.xml', 'configs/log_conf.xml'], with_zookeeper=True, image='yandex/clickhouse-server:19.6.3.18', with_installed_binary=True)
node3 = cluster.add_instance('node3', config_dir="configs", main_configs=['configs/remote_servers.xml', 'configs/log_conf.xml'], with_zookeeper=True, image='yandex/clickhouse-server', tag='19.6.3.18', with_installed_binary=True)
node4 = cluster.add_instance('node4', config_dir="configs", main_configs=['configs/remote_servers.xml', 'configs/log_conf.xml'], with_zookeeper=True)
node5 = cluster.add_instance('node5', config_dir="configs", main_configs=['configs/remote_servers.xml', 'configs/log_conf.xml'], with_zookeeper=True, image='yandex/clickhouse-server:19.1.15', with_installed_binary=True)
node5 = cluster.add_instance('node5', config_dir="configs", main_configs=['configs/remote_servers.xml', 'configs/log_conf.xml'], with_zookeeper=True, image='yandex/clickhouse-server', tag='19.1.15', with_installed_binary=True)
node6 = cluster.add_instance('node6', config_dir="configs", main_configs=['configs/remote_servers.xml', 'configs/log_conf.xml'], with_zookeeper=True)
node7 = cluster.add_instance('node7', config_dir="configs", main_configs=['configs/remote_servers.xml', 'configs/log_conf.xml'], with_zookeeper=True, image='yandex/clickhouse-server:19.6.3.18', stay_alive=True, with_installed_binary=True)
node8 = cluster.add_instance('node8', config_dir="configs", main_configs=['configs/remote_servers.xml', 'configs/log_conf.xml'], with_zookeeper=True, image='yandex/clickhouse-server:19.1.15', stay_alive=True, with_installed_binary=True)
node7 = cluster.add_instance('node7', config_dir="configs", main_configs=['configs/remote_servers.xml', 'configs/log_conf.xml'], with_zookeeper=True, image='yandex/clickhouse-server', tag='19.6.3.18', stay_alive=True, with_installed_binary=True)
node8 = cluster.add_instance('node8', config_dir="configs", main_configs=['configs/remote_servers.xml', 'configs/log_conf.xml'], with_zookeeper=True, image='yandex/clickhouse-server', tag='19.1.15', stay_alive=True, with_installed_binary=True)
node9 = cluster.add_instance('node9', config_dir="configs", main_configs=['configs/remote_servers.xml', 'configs/log_conf.xml', 'configs/merge_tree_settings.xml'], with_zookeeper=True, image='yandex/clickhouse-server:19.1.15', stay_alive=True, with_installed_binary=True)
node10 = cluster.add_instance('node10', config_dir="configs", main_configs=['configs/remote_servers.xml', 'configs/log_conf.xml', 'configs/merge_tree_settings.xml'], with_zookeeper=True, image='yandex/clickhouse-server:19.6.3.18', stay_alive=True, with_installed_binary=True)
node9 = cluster.add_instance('node9', config_dir="configs", main_configs=['configs/remote_servers.xml', 'configs/log_conf.xml', 'configs/merge_tree_settings.xml'], with_zookeeper=True, image='yandex/clickhouse-server', tag='19.1.15', stay_alive=True, with_installed_binary=True)
node10 = cluster.add_instance('node10', config_dir="configs", main_configs=['configs/remote_servers.xml', 'configs/log_conf.xml', 'configs/merge_tree_settings.xml'], with_zookeeper=True, image='yandex/clickhouse-server', tag='19.6.3.18', stay_alive=True, with_installed_binary=True)
node11 = cluster.add_instance('node11', config_dir="configs", main_configs=['configs/remote_servers.xml', 'configs/log_conf.xml'], with_zookeeper=True, image='yandex/clickhouse-server:19.1.15', stay_alive=True, with_installed_binary=True)
node12 = cluster.add_instance('node12', config_dir="configs", main_configs=['configs/remote_servers.xml', 'configs/log_conf.xml'], with_zookeeper=True, image='yandex/clickhouse-server:19.1.15', stay_alive=True, with_installed_binary=True)
node11 = cluster.add_instance('node11', config_dir="configs", main_configs=['configs/remote_servers.xml', 'configs/log_conf.xml'], with_zookeeper=True, image='yandex/clickhouse-server', tag='19.1.15', stay_alive=True, with_installed_binary=True)
node12 = cluster.add_instance('node12', config_dir="configs", main_configs=['configs/remote_servers.xml', 'configs/log_conf.xml'], with_zookeeper=True, image='yandex/clickhouse-server', tag='19.1.15', stay_alive=True, with_installed_binary=True)
def prepare_single_pair_with_setting(first_node, second_node, group):

2
tests/integration/test_adaptive_granularity_different_settings/test.py
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@ -7,7 +7,7 @@ node1 = cluster.add_instance('node1', with_zookeeper=True)
node2 = cluster.add_instance('node2', with_zookeeper=True)
# no adaptive granularity by default
node3 = cluster.add_instance('node3', image='yandex/clickhouse-server:19.9.5.36', with_installed_binary=True, stay_alive=True)
node3 = cluster.add_instance('node3', image='yandex/clickhouse-server', tag='19.9.5.36', with_installed_binary=True, stay_alive=True)
@pytest.fixture(scope="module")
def start_cluster():

2
tests/integration/test_adaptive_granularity_replicated/test.py
View File

@ -11,7 +11,7 @@ cluster = ClickHouseCluster(__file__)
node1 = cluster.add_instance('node1', with_zookeeper=True)
node2 = cluster.add_instance('node2', with_zookeeper=True)
node3 = cluster.add_instance('node3', with_zookeeper=True, image='yandex/clickhouse-server:19.1.14', with_installed_binary=True)
node3 = cluster.add_instance('node3', with_zookeeper=True, image='yandex/clickhouse-server', tag='19.1.14', with_installed_binary=True)
@pytest.fixture(scope="module")
def start_cluster():

6
tests/integration/test_backup_with_other_granularity/test.py
View File

@ -5,9 +5,9 @@ from helpers.cluster import ClickHouseCluster
cluster = ClickHouseCluster(__file__)
node1 = cluster.add_instance('node1', with_zookeeper=True, image='yandex/clickhouse-server:19.4.5.35', stay_alive=True, with_installed_binary=True)
node2 = cluster.add_instance('node2', with_zookeeper=True, image='yandex/clickhouse-server:19.4.5.35', stay_alive=True, with_installed_binary=True)
node3 = cluster.add_instance('node3', with_zookeeper=True, image='yandex/clickhouse-server:19.4.5.35', stay_alive=True, with_installed_binary=True)
node1 = cluster.add_instance('node1', with_zookeeper=True, image='yandex/clickhouse-server', tag='19.4.5.35', stay_alive=True, with_installed_binary=True)
node2 = cluster.add_instance('node2', with_zookeeper=True, image='yandex/clickhouse-server', tag='19.4.5.35', stay_alive=True, with_installed_binary=True)
node3 = cluster.add_instance('node3', with_zookeeper=True, image='yandex/clickhouse-server', tag='19.4.5.35', stay_alive=True, with_installed_binary=True)
node4 = cluster.add_instance('node4')

2
tests/integration/test_backward_compatibility/test.py
View File

@ -4,7 +4,7 @@ import helpers.client as client
from helpers.cluster import ClickHouseCluster
cluster = ClickHouseCluster(__file__)
node1 = cluster.add_instance('node1', with_zookeeper=True, image='yandex/clickhouse-server:19.17.8.54', stay_alive=True, with_installed_binary=True)
node1 = cluster.add_instance('node1', with_zookeeper=True, image='yandex/clickhouse-server', tag='19.17.8.54', stay_alive=True, with_installed_binary=True)
node2 = cluster.add_instance('node2', with_zookeeper=True)
@pytest.fixture(scope="module")

4
tests/integration/test_backward_compatibility/test_aggregate_function_state_avg.py
View File

@ -5,9 +5,9 @@ from helpers.cluster import ClickHouseCluster
cluster = ClickHouseCluster(__file__)
node1 = cluster.add_instance('node1',
with_zookeeper=False, image='yandex/clickhouse-server:19.16.9.37', stay_alive=True, with_installed_binary=True)
with_zookeeper=False, image='yandex/clickhouse-server', tag='19.16.9.37', stay_alive=True, with_installed_binary=True)
node2 = cluster.add_instance('node2',
with_zookeeper=False, image='yandex/clickhouse-server:19.16.9.37', stay_alive=True, with_installed_binary=True)
with_zookeeper=False, image='yandex/clickhouse-server', tag='19.16.9.37', stay_alive=True, with_installed_binary=True)
node3 = cluster.add_instance('node3', with_zookeeper=False)
node4 = cluster.add_instance('node4', with_zookeeper=False)

4
tests/integration/test_backward_compatibility/test_short_strings_aggregation.py
View File

@ -4,8 +4,8 @@ import helpers.client as client
from helpers.cluster import ClickHouseCluster
cluster = ClickHouseCluster(__file__)
node1 = cluster.add_instance('node1', with_zookeeper=False, image='yandex/clickhouse-server:19.16.9.37', stay_alive=True, with_installed_binary=True)
node2 = cluster.add_instance('node2', with_zookeeper=False, image='yandex/clickhouse-server:19.16.9.37', stay_alive=True, with_installed_binary=True)
node1 = cluster.add_instance('node1', with_zookeeper=False, image='yandex/clickhouse-server', tag='19.16.9.37', stay_alive=True, with_installed_binary=True)
node2 = cluster.add_instance('node2', with_zookeeper=False, image='yandex/clickhouse-server', tag='19.16.9.37', stay_alive=True, with_installed_binary=True)
node3 = cluster.add_instance('node3', with_zookeeper=False)
@pytest.fixture(scope="module")

2
tests/integration/test_default_compression_codec/test.py
View File

@ -8,7 +8,7 @@ cluster = ClickHouseCluster(__file__)
node1 = cluster.add_instance('node1', main_configs=['configs/default_compression.xml'], with_zookeeper=True)
node2 = cluster.add_instance('node2', main_configs=['configs/default_compression.xml'], with_zookeeper=True)
node3 = cluster.add_instance('node3', main_configs=['configs/default_compression.xml'], image='yandex/clickhouse-server:20.3.16', stay_alive=True, with_installed_binary=True)
node3 = cluster.add_instance('node3', main_configs=['configs/default_compression.xml'], image='yandex/clickhouse-server', tag='20.3.16', stay_alive=True, with_installed_binary=True)
@pytest.fixture(scope="module")
def start_cluster():

2
tests/integration/test_distributed_backward_compatability/test.py
View File

@ -8,7 +8,7 @@ from helpers.test_tools import TSV
cluster = ClickHouseCluster(__file__)
node_old = cluster.add_instance('node1', main_configs=['configs/remote_servers.xml'], image='yandex/clickhouse-server:19.17.8.54', stay_alive=True, with_installed_binary=True)
node_old = cluster.add_instance('node1', main_configs=['configs/remote_servers.xml'], image='yandex/clickhouse-server', tag='19.17.8.54', stay_alive=True, with_installed_binary=True)
node_new = cluster.add_instance('node2', main_configs=['configs/remote_servers.xml'])
@pytest.fixture(scope="module")

2
tests/integration/test_host_ip_change/configs/dns_update_short.xml
View File

@ -1,3 +1,3 @@
<yandex>
<dns_cache_update_period>2</dns_cache_update_period>
<dns_cache_update_period>1</dns_cache_update_period>
</yandex>

12
tests/integration/test_host_ip_change/test.py
View File

@ -106,11 +106,21 @@ def test_ip_change_update_dns_cache(cluster_with_dns_cache_update):
# Put some data to source node3
node3.query("INSERT INTO test_table_update VALUES ('2018-10-01', 5), ('2018-10-02', 6), ('2018-10-03', 7)")
# Check that data is placed on node3
assert node3.query("SELECT count(*) from test_table_update") == "6\n"
curl_result = node4.exec_in_container(["bash", "-c", "curl -s 'node3:8123'"])
assert curl_result == 'Ok.\n'
cat_resolv = node4.exec_in_container(["bash", "-c", "cat /etc/resolv.conf"])
print("RESOLV {}".format(cat_resolv))
assert node4.query("SELECT * FROM remote('node3', 'system', 'one')") == "0\n"
# Because of DNS cache update, ip of node3 would be updated
assert_eq_with_retry(node4, "SELECT count(*) from test_table_update", "6")
assert_eq_with_retry(node4, "SELECT count(*) from test_table_update", "6", sleep_time=3)
# Just to be sure check one more time
node3.query("INSERT INTO test_table_update VALUES ('2018-10-01', 8)")

2
tests/integration/test_odbc_interaction/test.py
View File

@ -10,7 +10,7 @@ from helpers.cluster import ClickHouseCluster
SCRIPT_DIR = os.path.dirname(os.path.realpath(__file__))
cluster = ClickHouseCluster(__file__, base_configs_dir=os.path.join(SCRIPT_DIR, 'configs'))
node1 = cluster.add_instance('node1', with_odbc_drivers=True, with_mysql=True, image='yandex/clickhouse-integration-test', main_configs=['configs/dictionaries/sqlite3_odbc_hashed_dictionary.xml', 'configs/dictionaries/sqlite3_odbc_cached_dictionary.xml', 'configs/dictionaries/postgres_odbc_hashed_dictionary.xml'], stay_alive=True)
node1 = cluster.add_instance('node1', with_odbc_drivers=True, with_mysql=True, main_configs=['configs/dictionaries/sqlite3_odbc_hashed_dictionary.xml', 'configs/dictionaries/sqlite3_odbc_cached_dictionary.xml', 'configs/dictionaries/postgres_odbc_hashed_dictionary.xml'], stay_alive=True)
create_table_sql_template = """
CREATE TABLE `clickhouse`.`{}` (

14
tests/integration/test_old_versions/test.py
View File

@ -9,13 +9,13 @@ from helpers.test_tools import assert_eq_with_retry
cluster = ClickHouseCluster(__file__)
node18_14 = cluster.add_instance('node18_14', image='yandex/clickhouse-server:18.14.19', with_installed_binary=True, config_dir="configs")
node19_1 = cluster.add_instance('node19_1', image='yandex/clickhouse-server:19.1.16', with_installed_binary=True, config_dir="configs")
node19_4 = cluster.add_instance('node19_4', image='yandex/clickhouse-server:19.4.5.35', with_installed_binary=True, config_dir="configs")
node19_8 = cluster.add_instance('node19_8', image='yandex/clickhouse-server:19.8.3.8', with_installed_binary=True, config_dir="configs")
node19_11 = cluster.add_instance('node19_11', image='yandex/clickhouse-server:19.11.13.74', with_installed_binary=True, config_dir="configs")
node19_13 = cluster.add_instance('node19_13', image='yandex/clickhouse-server:19.13.7.57', with_installed_binary=True, config_dir="configs")
node19_16 = cluster.add_instance('node19_16', image='yandex/clickhouse-server:19.16.2.2', with_installed_binary=True, config_dir="configs")
node18_14 = cluster.add_instance('node18_14', image='yandex/clickhouse-server', tag='18.14.19', with_installed_binary=True, config_dir="configs")
node19_1 = cluster.add_instance('node19_1', image='yandex/clickhouse-server', tag='19.1.16', with_installed_binary=True, config_dir="configs")
node19_4 = cluster.add_instance('node19_4', image='yandex/clickhouse-server', tag='19.4.5.35', with_installed_binary=True, config_dir="configs")
node19_8 = cluster.add_instance('node19_8', image='yandex/clickhouse-server', tag='19.8.3.8', with_installed_binary=True, config_dir="configs")
node19_11 = cluster.add_instance('node19_11', image='yandex/clickhouse-server', tag='19.11.13.74', with_installed_binary=True, config_dir="configs")
node19_13 = cluster.add_instance('node19_13', image='yandex/clickhouse-server', tag='19.13.7.57', with_installed_binary=True, config_dir="configs")
node19_16 = cluster.add_instance('node19_16', image='yandex/clickhouse-server', tag='19.16.2.2', with_installed_binary=True, config_dir="configs")
old_nodes = [node18_14, node19_1, node19_4, node19_8, node19_11, node19_13, node19_16]
new_node = cluster.add_instance('node_new')

2
tests/integration/test_polymorphic_parts/test.py
View File

@ -213,7 +213,7 @@ def test_different_part_types_on_replicas(start_cluster, table, part_type):
"WHERE table = '{}' AND active GROUP BY part_type ORDER BY part_type".format(table))) == TSV(expected)
node7 = cluster.add_instance('node7', config_dir="configs_old", with_zookeeper=True, image='yandex/clickhouse-server:19.17.8.54', stay_alive=True, with_installed_binary=True)
node7 = cluster.add_instance('node7', config_dir="configs_old", with_zookeeper=True, image='yandex/clickhouse-server', tag='19.17.8.54', stay_alive=True, with_installed_binary=True)
node8 = cluster.add_instance('node8', config_dir="configs", with_zookeeper=True)
settings7 = {'index_granularity_bytes' : 10485760}

2
tests/integration/test_replicating_constants/test.py
View File

@ -5,7 +5,7 @@ from helpers.cluster import ClickHouseCluster
cluster = ClickHouseCluster(__file__)
node1 = cluster.add_instance('node1', with_zookeeper=True)
node2 = cluster.add_instance('node2', with_zookeeper=True, image='yandex/clickhouse-server:19.1.14', with_installed_binary=True)
node2 = cluster.add_instance('node2', with_zookeeper=True, image='yandex/clickhouse-server', tag='19.1.14', with_installed_binary=True)
@pytest.fixture(scope="module")
def start_cluster():

6
tests/integration/test_version_update_after_mutation/test.py
View File

@ -5,9 +5,9 @@ from helpers.test_tools import assert_eq_with_retry
cluster = ClickHouseCluster(__file__)
node1 = cluster.add_instance('node1', with_zookeeper=True, image='yandex/clickhouse-server:20.1.10.70', with_installed_binary=True, stay_alive=True)
node2 = cluster.add_instance('node2', with_zookeeper=True, image='yandex/clickhouse-server:20.1.10.70', with_installed_binary=True, stay_alive=True)
node3 = cluster.add_instance('node3', with_zookeeper=True, image='yandex/clickhouse-server:20.1.10.70', with_installed_binary=True, stay_alive=True)
node1 = cluster.add_instance('node1', with_zookeeper=True, image='yandex/clickhouse-server', tag='20.1.10.70', with_installed_binary=True, stay_alive=True)
node2 = cluster.add_instance('node2', with_zookeeper=True, image='yandex/clickhouse-server', tag='20.1.10.70', with_installed_binary=True, stay_alive=True)
node3 = cluster.add_instance('node3', with_zookeeper=True, image='yandex/clickhouse-server', tag='20.1.10.70', with_installed_binary=True, stay_alive=True)
@pytest.fixture(scope="module")
def start_cluster():