mirror of
https://github.com/ClickHouse/ClickHouse.git
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141 lines
4.0 KiB
Python
141 lines
4.0 KiB
Python
# pylint: disable=line-too-long
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# pylint: disable=unused-argument
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# pylint: disable=redefined-outer-name
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import pytest
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from helpers.cluster import ClickHouseCluster
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cluster = ClickHouseCluster(__file__)
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node = cluster.add_instance("node_default", stay_alive=True)
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@pytest.fixture(scope="module", autouse=True)
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def start_cluster():
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try:
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cluster.start()
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yield cluster
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finally:
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cluster.shutdown()
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def test_system_logs_recreate():
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system_logs = [
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# enabled by default
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"query_log",
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"query_thread_log",
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"part_log",
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"trace_log",
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"metric_log",
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]
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node.query("SYSTEM FLUSH LOGS")
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for table in system_logs:
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assert "ENGINE = MergeTree" in node.query(f"SHOW CREATE TABLE system.{table}")
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assert "ENGINE = Null" not in node.query(f"SHOW CREATE TABLE system.{table}")
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assert (
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len(
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node.query(f"SHOW TABLES FROM system LIKE '{table}%'")
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.strip()
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.split("\n")
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)
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== 1
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)
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# NOTE: we use zzz- prefix to make it the last file,
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# so that it will be applied last.
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for table in system_logs:
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node.exec_in_container(
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[
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"bash",
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"-c",
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f"""echo "
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<clickhouse>
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<{table}>
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<engine>ENGINE = Null</engine>
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<partition_by remove='remove'/>
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</{table}>
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</clickhouse>
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" > /etc/clickhouse-server/config.d/zzz-override-{table}.xml
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""",
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]
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)
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node.restart_clickhouse()
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node.query("SYSTEM FLUSH LOGS")
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for table in system_logs:
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assert "ENGINE = MergeTree" not in node.query(
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f"SHOW CREATE TABLE system.{table}"
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)
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assert "ENGINE = Null" in node.query(f"SHOW CREATE TABLE system.{table}")
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assert (
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len(
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node.query(f"SHOW TABLES FROM system LIKE '{table}%'")
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.strip()
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.split("\n")
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)
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== 2
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)
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for table in system_logs:
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node.exec_in_container(
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["rm", f"/etc/clickhouse-server/config.d/zzz-override-{table}.xml"]
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)
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node.restart_clickhouse()
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node.query("SYSTEM FLUSH LOGS")
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for table in system_logs:
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assert "ENGINE = MergeTree" in node.query(f"SHOW CREATE TABLE system.{table}")
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assert "ENGINE = Null" not in node.query(f"SHOW CREATE TABLE system.{table}")
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assert (
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len(
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node.query(f"SHOW TABLES FROM system LIKE '{table}%'")
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.strip()
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.split("\n")
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)
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== 3
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)
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node.query("SYSTEM FLUSH LOGS")
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# Ensure that there was no superfluous RENAME's
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# IOW that the table created only when the structure is indeed different.
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for table in system_logs:
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assert (
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len(
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node.query(f"SHOW TABLES FROM system LIKE '{table}%'")
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.strip()
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.split("\n")
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)
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== 3
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)
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def test_drop_system_log():
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node.exec_in_container(
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[
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"bash",
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"-c",
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f"""echo "
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<clickhouse>
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<query_log>
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<flush_interval_milliseconds replace=\\"replace\\">1000000</flush_interval_milliseconds>
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</query_log>
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</clickhouse>
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" > /etc/clickhouse-server/config.d/yyy-override-query_log.xml
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""",
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]
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)
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node.restart_clickhouse()
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node.query("select 1")
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node.query("system flush logs")
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node.query("select 2")
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node.query("system flush logs")
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assert node.query("select count() > 0 from system.query_log") == "1\n"
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node.query("drop table system.query_log sync")
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node.query("select 3")
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node.query("system flush logs")
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assert node.query("select count() > 0 from system.query_log") == "1\n"
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node.exec_in_container(
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["rm", f"/etc/clickhouse-server/config.d/yyy-override-query_log.xml"]
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)
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node.restart_clickhouse()
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