mirror of
https://github.com/ClickHouse/ClickHouse.git
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198 lines
6.2 KiB
Python
198 lines
6.2 KiB
Python
import os
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import sys
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import time
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from contextlib import contextmanager
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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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from helpers.client import QueryRuntimeException
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@pytest.fixture(scope="module")
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def started_cluster():
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global cluster
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global instance
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try:
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cluster = ClickHouseCluster(__file__)
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cluster.add_instance(
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"ch1",
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main_configs=[
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"configs/config.d/clusters_config.xml",
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"configs/config.d/query_log.xml",
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],
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dictionaries=[
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"configs/dictionaries/dictionary_clickhouse_cache.xml",
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"configs/dictionaries/dictionary_clickhouse_flat.xml",
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],
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)
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cluster.start()
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instance = cluster.instances["ch1"]
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instance.query("CREATE DATABASE dictionaries ENGINE = Dictionary")
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instance.query(
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"CREATE TABLE dictionary_source (id UInt64, value UInt8) ENGINE = Memory"
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)
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yield cluster
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finally:
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pass
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cluster.shutdown()
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def test_SYSTEM_RELOAD_DICTIONARY(started_cluster):
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instance = cluster.instances["ch1"]
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instance.query("SYSTEM RELOAD DICTIONARIES")
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assert TSV(
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instance.query(
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"SELECT dictHas('clickhouse_flat', toUInt64(0)), dictHas('clickhouse_flat', toUInt64(1))"
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)
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) == TSV("0\t0\n")
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instance.query("INSERT INTO dictionary_source VALUES (0, 0)")
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assert TSV(
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instance.query(
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"SELECT dictGetUInt8('clickhouse_cache', 'value', toUInt64(0)), dictHas('clickhouse_cache', toUInt64(1))"
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)
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) == TSV("0\t0\n")
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instance.query("INSERT INTO dictionary_source VALUES (1, 1)")
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assert TSV(
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instance.query(
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"SELECT dictGetUInt8('clickhouse_cache', 'value', toUInt64(0)), dictHas('clickhouse_cache', toUInt64(1))"
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)
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) == TSV("0\t0\n")
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instance.query("SYSTEM RELOAD DICTIONARY clickhouse_cache")
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assert TSV(
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instance.query(
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"SELECT dictGetUInt8('clickhouse_cache', 'value', toUInt64(0)), dictGetUInt8('clickhouse_cache', 'value', toUInt64(1))"
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)
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) == TSV("0\t1\n")
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assert TSV(
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instance.query(
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"SELECT dictHas('clickhouse_flat', toUInt64(0)), dictHas('clickhouse_flat', toUInt64(1))"
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)
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) == TSV("0\t0\n")
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instance.query("SYSTEM RELOAD DICTIONARIES")
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assert TSV(
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instance.query(
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"SELECT dictGetUInt8('clickhouse_cache', 'value', toUInt64(0)), dictGetUInt8('clickhouse_cache', 'value', toUInt64(1))"
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)
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) == TSV("0\t1\n")
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assert TSV(
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instance.query(
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"SELECT dictGetUInt8('clickhouse_flat', 'value', toUInt64(0)), dictGetUInt8('clickhouse_flat', 'value', toUInt64(1))"
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)
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) == TSV("0\t1\n")
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def test_DROP_DNS_CACHE(started_cluster):
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instance = cluster.instances["ch1"]
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instance.exec_in_container(
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["bash", "-c", "echo 127.0.0.1 localhost > /etc/hosts"],
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privileged=True,
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user="root",
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)
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instance.exec_in_container(
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["bash", "-c", "echo ::1 localhost >> /etc/hosts"], privileged=True, user="root"
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)
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instance.exec_in_container(
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["bash", "-c", "echo 127.255.255.255 lost_host >> /etc/hosts"],
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privileged=True,
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user="root",
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)
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instance.query("SYSTEM DROP DNS CACHE")
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with pytest.raises(QueryRuntimeException):
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instance.query("SELECT * FROM remote('lost_host', 'system', 'one')")
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instance.query(
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"CREATE TABLE distributed_lost_host (dummy UInt8) ENGINE = Distributed(lost_host_cluster, 'system', 'one')"
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)
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with pytest.raises(QueryRuntimeException):
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instance.query("SELECT * FROM distributed_lost_host")
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instance.exec_in_container(
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["bash", "-c", "echo 127.0.0.1 localhost > /etc/hosts"],
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privileged=True,
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user="root",
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)
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instance.exec_in_container(
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["bash", "-c", "echo ::1 localhost >> /etc/hosts"], privileged=True, user="root"
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)
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instance.exec_in_container(
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["bash", "-c", "echo 127.0.0.1 lost_host >> /etc/hosts"],
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privileged=True,
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user="root",
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)
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instance.query("SYSTEM DROP DNS CACHE")
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instance.query("SELECT * FROM remote('lost_host', 'system', 'one')")
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instance.query("SELECT * FROM distributed_lost_host")
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assert TSV(
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instance.query(
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"SELECT DISTINCT host_name, host_address FROM system.clusters WHERE cluster='lost_host_cluster'"
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)
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) == TSV("lost_host\t127.0.0.1\n")
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def test_RELOAD_CONFIG_AND_MACROS(started_cluster):
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macros = "<clickhouse><macros><mac>ro</mac></macros></clickhouse>"
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create_macros = 'echo "{}" > /etc/clickhouse-server/config.d/macros.xml'.format(
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macros
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)
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instance = cluster.instances["ch1"]
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instance.exec_in_container(
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["bash", "-c", create_macros], privileged=True, user="root"
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)
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instance.query("SYSTEM RELOAD CONFIG")
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assert TSV(instance.query("select * from system.macros")) == TSV(
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"instance\tch1\nmac\tro\n"
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)
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def test_system_flush_logs(started_cluster):
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instance = cluster.instances["ch1"]
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instance.query(
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"""
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SET log_queries = 0;
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SYSTEM FLUSH LOGS;
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TRUNCATE TABLE system.query_log;
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"""
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)
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for i in range(4):
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# Sleep to execute flushing from background thread at first query
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# by expiration of flush_interval_millisecond and test probable race condition.
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time.sleep(0.5)
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result = instance.query(
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"""
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SELECT 1 FORMAT Null;
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SET log_queries = 0;
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SYSTEM FLUSH LOGS;
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SELECT count() FROM system.query_log;"""
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)
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instance.query(
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"""
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SET log_queries = 0;
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SYSTEM FLUSH LOGS;
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TRUNCATE TABLE system.query_log;
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"""
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)
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assert TSV(result) == TSV("4")
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if __name__ == "__main__":
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with contextmanager(started_cluster)() as cluster:
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for name, instance in list(cluster.instances.items()):
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print(name, instance.ip_address)
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input("Cluster created, press any key to destroy...")
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