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