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https://github.com/ClickHouse/ClickHouse.git
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108 lines
6.4 KiB
Python
108 lines
6.4 KiB
Python
import time
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import pytest
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from helpers.client import QueryRuntimeException
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from helpers.cluster import ClickHouseCluster
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from helpers.test_tools import assert_eq_with_retry
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cluster = ClickHouseCluster(__file__)
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node1 = cluster.add_instance('node1')
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node2 = cluster.add_instance('node2')
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distributed = cluster.add_instance('distributed', main_configs=["configs/remote_servers.xml"], stay_alive=True)
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@pytest.fixture(scope="module", autouse=True)
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def started_cluster():
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try:
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cluster.start()
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for node in [node1, node2]:
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node.query("CREATE TABLE sometable (date Date, id UInt32, value Int32) ENGINE = MergeTree() ORDER BY id;")
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node.query("INSERT INTO sometable VALUES (toDate('2010-01-10'), 1, 1)")
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node.query("CREATE USER shard")
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node.query("GRANT ALL ON *.* TO shard")
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distributed.query("CREATE TABLE proxy (date Date, id UInt32, value Int32) ENGINE = Distributed(test_cluster, default, sometable, toUInt64(date));")
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distributed.query("CREATE TABLE shard_settings (name String, value String) ENGINE = Distributed(test_cluster, system, settings);")
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distributed.query("CREATE ROLE admin")
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distributed.query("GRANT ALL ON *.* TO admin")
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yield cluster
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finally:
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cluster.shutdown()
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@pytest.fixture(autouse=True)
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def restart_distributed():
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# Magic: Distributed table tries to keep connections to shards open, and after changing shards' default settings
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# we need to reset connections to force the shards to reset sessions and therefore to reset current settings
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# to their new defaults.
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distributed.restart_clickhouse()
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def test_select_clamps_settings():
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distributed.query("CREATE USER normal DEFAULT ROLE admin SETTINGS max_memory_usage = 80000000")
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distributed.query("CREATE USER wasteful DEFAULT ROLE admin SETTINGS max_memory_usage = 2000000000")
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distributed.query("CREATE USER readonly DEFAULT ROLE admin SETTINGS readonly = 1")
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node1.query("ALTER USER shard SETTINGS max_memory_usage = 50000000 MIN 11111111 MAX 99999999")
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node2.query("ALTER USER shard SETTINGS readonly = 1")
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# Check that shards doesn't throw exceptions on constraints violation
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query = "SELECT COUNT() FROM proxy"
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assert distributed.query(query) == '2\n'
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assert distributed.query(query, user = 'normal') == '2\n'
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assert distributed.query(query, user = 'wasteful') == '2\n'
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assert distributed.query(query, user = 'readonly') == '2\n'
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assert distributed.query(query, settings={"max_memory_usage": 40000000, "readonly": 2}) == '2\n'
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assert distributed.query(query, settings={"max_memory_usage": 3000000000, "readonly": 2}) == '2\n'
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query = "SELECT COUNT() FROM remote('node{1,2}', 'default', 'sometable')"
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assert distributed.query(query) == '2\n'
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assert distributed.query(query, user = 'normal') == '2\n'
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assert distributed.query(query, user = 'wasteful') == '2\n'
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# Check that shards clamp passed settings.
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query = "SELECT hostName() as host, name, value FROM shard_settings WHERE name = 'max_memory_usage' OR name = 'readonly' ORDER BY host, name, value"
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assert distributed.query(query) == 'node1\tmax_memory_usage\t99999999\n'\
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'node1\treadonly\t0\n'\
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'node2\tmax_memory_usage\t10000000000\n'\
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'node2\treadonly\t1\n'
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assert distributed.query(query, user = 'normal') == 'node1\tmax_memory_usage\t80000000\n'\
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'node1\treadonly\t0\n'\
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'node2\tmax_memory_usage\t10000000000\n'\
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'node2\treadonly\t1\n'
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assert distributed.query(query, user = 'wasteful') == 'node1\tmax_memory_usage\t99999999\n'\
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'node1\treadonly\t0\n'\
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'node2\tmax_memory_usage\t10000000000\n'\
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'node2\treadonly\t1\n'
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assert distributed.query(query, user = 'readonly') == 'node1\tmax_memory_usage\t99999999\n'\
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'node1\treadonly\t1\n'\
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'node2\tmax_memory_usage\t10000000000\n'\
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'node2\treadonly\t1\n'
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assert distributed.query(query, settings={"max_memory_usage": 1}) == 'node1\tmax_memory_usage\t11111111\n'\
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'node1\treadonly\t0\n'\
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'node2\tmax_memory_usage\t10000000000\n'\
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'node2\treadonly\t1\n'
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assert distributed.query(query, settings={"max_memory_usage": 40000000, "readonly": 2}) == 'node1\tmax_memory_usage\t40000000\n'\
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'node1\treadonly\t2\n'\
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'node2\tmax_memory_usage\t10000000000\n'\
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'node2\treadonly\t1\n'
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assert distributed.query(query, settings={"max_memory_usage": 3000000000, "readonly": 2}) == 'node1\tmax_memory_usage\t99999999\n'\
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'node1\treadonly\t2\n'\
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'node2\tmax_memory_usage\t10000000000\n'\
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'node2\treadonly\t1\n'
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def test_insert_clamps_settings():
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node1.query("ALTER USER shard SETTINGS max_memory_usage = 50000000 MIN 11111111 MAX 99999999")
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node2.query("ALTER USER shard SETTINGS max_memory_usage = 50000000 MIN 11111111 MAX 99999999")
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distributed.query("INSERT INTO proxy VALUES (toDate('2020-02-20'), 2, 2)")
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distributed.query("INSERT INTO proxy VALUES (toDate('2020-02-21'), 2, 2)", settings={"max_memory_usage": 5000000})
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distributed.query("SYSTEM FLUSH DISTRIBUTED proxy")
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assert_eq_with_retry(distributed, "SELECT COUNT() FROM proxy", "4")
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