mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-11 18:14:03 +00:00
134 lines
5.4 KiB
Python
134 lines
5.4 KiB
Python
import pytest
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import os
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import time
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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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from multiprocessing.dummy import Pool
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cluster = ClickHouseCluster(__file__)
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node1 = cluster.add_instance('node1', main_configs=['configs/wide_parts_only.xml'])
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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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yield cluster
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finally:
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cluster.shutdown()
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def check_hardlinks(table, part_path, column_file, count):
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column_path = os.path.join("/var/lib/clickhouse/data/default", table, part_path, column_file)
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script = """
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export INODE=`ls -i {column_path} | awk '{{print $1}}'`
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export COUNT=`find /var/lib/clickhouse -inum $INODE | wc -l`
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test $COUNT = {count}
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""".format(column_path=column_path, count=count)
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node1.exec_in_container(["bash", "-c", script])
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def check_exists(table, part_path, column_file):
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column_path = os.path.join("/var/lib/clickhouse/data/default", table, part_path, column_file)
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node1.exec_in_container(["bash", "-c", "test -f {}".format(column_path)])
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def test_update_mutation(started_cluster):
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node1.query("CREATE TABLE table_for_update(key UInt64, value1 UInt64, value2 String) ENGINE MergeTree() ORDER BY tuple()")
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node1.query("INSERT INTO table_for_update SELECT number, number, toString(number) from numbers(100)")
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assert int(node1.query("SELECT sum(value1) FROM table_for_update").strip()) == sum(range(100))
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node1.query("ALTER TABLE table_for_update UPDATE value1 = value1 * value1 WHERE 1", settings={"mutations_sync" : "2"})
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assert int(node1.query("SELECT sum(value1) FROM table_for_update").strip()) == sum(i * i for i in range(100))
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check_hardlinks("table_for_update", "all_1_1_0_2", "key.bin", 2)
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check_hardlinks("table_for_update", "all_1_1_0_2", "value2.bin", 2)
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check_hardlinks("table_for_update", "all_1_1_0_2", "value1.bin", 1)
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node1.query("ALTER TABLE table_for_update UPDATE key=key, value1=value1, value2=value2 WHERE 1", settings={"mutations_sync": "2"})
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assert int(node1.query("SELECT sum(value1) FROM table_for_update").strip()) == sum(i * i for i in range(100))
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check_hardlinks("table_for_update", "all_1_1_0_3", "key.bin", 1)
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check_hardlinks("table_for_update", "all_1_1_0_3", "value1.bin", 1)
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check_hardlinks("table_for_update", "all_1_1_0_3", "value2.bin", 1)
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def test_modify_mutation(started_cluster):
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node1.query("CREATE TABLE table_for_modify(key UInt64, value1 UInt64, value2 String) ENGINE MergeTree() ORDER BY tuple()")
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node1.query("INSERT INTO table_for_modify SELECT number, number, toString(number) from numbers(100)")
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assert int(node1.query("SELECT sum(value1) FROM table_for_modify").strip()) == sum(range(100))
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node1.query("ALTER TABLE table_for_modify MODIFY COLUMN value2 UInt64", settings={"mutations_sync" : "2"})
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assert int(node1.query("SELECT sum(value2) FROM table_for_modify").strip()) == sum(range(100))
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check_hardlinks("table_for_modify", "all_1_1_0_2", "key.bin", 2)
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check_hardlinks("table_for_modify", "all_1_1_0_2", "value1.bin", 2)
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check_hardlinks("table_for_modify", "all_1_1_0_2", "value2.bin", 1)
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def test_drop_mutation(started_cluster):
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node1.query("CREATE TABLE table_for_drop(key UInt64, value1 UInt64, value2 String) ENGINE MergeTree() ORDER BY tuple()")
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node1.query("INSERT INTO table_for_drop SELECT number, number, toString(number) from numbers(100)")
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assert int(node1.query("SELECT sum(value1) FROM table_for_drop").strip()) == sum(range(100))
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node1.query("ALTER TABLE table_for_drop DROP COLUMN value2", settings={"mutations_sync": "2"})
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check_hardlinks("table_for_drop", "all_1_1_0_2", "key.bin", 2)
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check_hardlinks("table_for_drop", "all_1_1_0_2", "value1.bin", 2)
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with pytest.raises(Exception):
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check_exists("table_for_drop", "all_1_1_0_2", "value2.bin")
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with pytest.raises(Exception):
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check_exists("table_for_drop", "all_1_1_0_2", "value2.mrk")
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def test_delete_and_drop_mutation(started_cluster):
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node1.query("CREATE TABLE table_for_delete_and_drop(key UInt64, value1 UInt64, value2 String) ENGINE MergeTree() ORDER BY tuple()")
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node1.query("INSERT INTO table_for_delete_and_drop SELECT number, number, toString(number) from numbers(100)")
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assert int(node1.query("SELECT sum(value1) FROM table_for_delete_and_drop").strip()) == sum(range(100))
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node1.query("SYSTEM STOP MERGES")
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def mutate():
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node1.query("ALTER TABLE table_for_delete_and_drop DELETE WHERE key % 2 == 0, DROP COLUMN value2")
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p = Pool(2)
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p.apply_async(mutate)
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for _ in range(1, 100):
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result = node1.query("SELECT COUNT() FROM system.mutations WHERE table = 'table_for_delete_and_drop' and is_done=0")
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try:
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if int(result.strip()) == 2:
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break
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except:
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print "Result", result
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pass
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time.sleep(0.5)
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node1.query("SYSTEM START MERGES")
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assert_eq_with_retry(node1, "SELECT COUNT() FROM table_for_delete_and_drop", str(sum(1 for i in range(100) if i % 2 != 0)))
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check_hardlinks("table_for_delete_and_drop", "all_1_1_0_3", "key.bin", 1)
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check_hardlinks("table_for_delete_and_drop", "all_1_1_0_3", "value1.bin", 1)
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with pytest.raises(Exception):
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check_exists("table_for_delete_and_drop", "all_1_1_0_3", "value2.bin")
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with pytest.raises(Exception):
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check_exists("table_for_delete_and_drop", "all_1_1_0_3", "value2.mrk")
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