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320 lines
14 KiB
Python
320 lines
14 KiB
Python
import logging
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import random
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import string
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import time
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import pytest
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from helpers.cluster import ClickHouseCluster
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logging.getLogger().setLevel(logging.INFO)
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logging.getLogger().addHandler(logging.StreamHandler())
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# Creates S3 bucket for tests and allows anonymous read-write access to it.
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def prepare_s3_bucket(cluster):
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minio_client = cluster.minio_client
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if minio_client.bucket_exists(cluster.minio_bucket):
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minio_client.remove_bucket(cluster.minio_bucket)
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minio_client.make_bucket(cluster.minio_bucket)
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@pytest.fixture(scope="module")
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def cluster():
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try:
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cluster = ClickHouseCluster(__file__)
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cluster.add_instance("node", config_dir="configs", with_minio=True)
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logging.info("Starting cluster...")
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cluster.start()
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logging.info("Cluster started")
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prepare_s3_bucket(cluster)
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logging.info("S3 bucket created")
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yield cluster
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finally:
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cluster.shutdown()
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FILES_OVERHEAD = 1
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FILES_OVERHEAD_PER_COLUMN = 2 # Data and mark files
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FILES_OVERHEAD_PER_PART_WIDE = FILES_OVERHEAD_PER_COLUMN * 3 + 2 + 6
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FILES_OVERHEAD_PER_PART_COMPACT = 10
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def random_string(length):
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letters = string.ascii_letters
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return ''.join(random.choice(letters) for i in range(length))
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def generate_values(date_str, count, sign=1):
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data = [[date_str, sign*(i + 1), random_string(10)] for i in range(count)]
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data.sort(key=lambda tup: tup[1])
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return ",".join(["('{}',{},'{}')".format(x, y, z) for x, y, z in data])
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def create_table(cluster, table_name, additional_settings=None):
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node = cluster.instances["node"]
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create_table_statement = """
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CREATE TABLE {} (
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dt Date,
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id Int64,
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data String,
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INDEX min_max (id) TYPE minmax GRANULARITY 3
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) ENGINE=MergeTree()
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PARTITION BY dt
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ORDER BY (dt, id)
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SETTINGS
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old_parts_lifetime=0, index_granularity=512
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""".format(table_name)
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if additional_settings:
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create_table_statement += ","
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create_table_statement += additional_settings
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node.query(create_table_statement)
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@pytest.fixture(autouse=True)
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def drop_table(cluster):
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yield
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node = cluster.instances["node"]
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minio = cluster.minio_client
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node.query("DROP TABLE IF EXISTS s3_test")
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assert len(list(minio.list_objects(cluster.minio_bucket, 'data/'))) == 0
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@pytest.mark.parametrize(
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"min_rows_for_wide_part,files_per_part",
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[
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(0, FILES_OVERHEAD_PER_PART_WIDE),
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(8192, FILES_OVERHEAD_PER_PART_COMPACT)
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]
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)
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def test_simple_insert_select(cluster, min_rows_for_wide_part, files_per_part):
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create_table(cluster, "s3_test", additional_settings="min_rows_for_wide_part={}".format(min_rows_for_wide_part))
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node = cluster.instances["node"]
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minio = cluster.minio_client
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values1 = generate_values('2020-01-03', 4096)
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node.query("INSERT INTO s3_test VALUES {}".format(values1))
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assert node.query("SELECT * FROM s3_test order by dt, id FORMAT Values") == values1
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assert len(list(minio.list_objects(cluster.minio_bucket, 'data/'))) == FILES_OVERHEAD + files_per_part
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values2 = generate_values('2020-01-04', 4096)
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node.query("INSERT INTO s3_test VALUES {}".format(values2))
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assert node.query("SELECT * FROM s3_test ORDER BY dt, id FORMAT Values") == values1 + "," + values2
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assert len(list(minio.list_objects(cluster.minio_bucket, 'data/'))) == FILES_OVERHEAD + files_per_part*2
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assert node.query("SELECT count(*) FROM s3_test where id = 1 FORMAT Values") == "(2)"
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@pytest.mark.parametrize(
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"merge_vertical", [False, True]
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)
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def test_insert_same_partition_and_merge(cluster, merge_vertical):
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settings = None
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if merge_vertical:
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settings = """
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vertical_merge_algorithm_min_rows_to_activate=0,
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vertical_merge_algorithm_min_columns_to_activate=0
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"""
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create_table(cluster, "s3_test", additional_settings=settings)
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node = cluster.instances["node"]
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minio = cluster.minio_client
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node.query("SYSTEM STOP MERGES s3_test")
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node.query("INSERT INTO s3_test VALUES {}".format(generate_values('2020-01-03', 1024)))
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node.query("INSERT INTO s3_test VALUES {}".format(generate_values('2020-01-03', 2048)))
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node.query("INSERT INTO s3_test VALUES {}".format(generate_values('2020-01-03', 4096)))
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node.query("INSERT INTO s3_test VALUES {}".format(generate_values('2020-01-03', 1024, -1)))
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node.query("INSERT INTO s3_test VALUES {}".format(generate_values('2020-01-03', 2048, -1)))
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node.query("INSERT INTO s3_test VALUES {}".format(generate_values('2020-01-03', 4096, -1)))
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assert node.query("SELECT sum(id) FROM s3_test FORMAT Values") == "(0)"
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assert node.query("SELECT count(distinct(id)) FROM s3_test FORMAT Values") == "(8192)"
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assert len(list(minio.list_objects(cluster.minio_bucket, 'data/'))) == FILES_OVERHEAD_PER_PART_WIDE*6 + FILES_OVERHEAD
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node.query("SYSTEM START MERGES s3_test")
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# Wait for merges and old parts deletion
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time.sleep(3)
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assert node.query("SELECT sum(id) FROM s3_test FORMAT Values") == "(0)"
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assert node.query("SELECT count(distinct(id)) FROM s3_test FORMAT Values") == "(8192)"
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assert len(list(minio.list_objects(cluster.minio_bucket, 'data/'))) == FILES_OVERHEAD_PER_PART_WIDE + FILES_OVERHEAD
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def test_alter_table_columns(cluster):
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create_table(cluster, "s3_test")
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node = cluster.instances["node"]
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minio = cluster.minio_client
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node.query("INSERT INTO s3_test VALUES {}".format(generate_values('2020-01-03', 4096)))
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node.query("INSERT INTO s3_test VALUES {}".format(generate_values('2020-01-03', 4096, -1)))
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node.query("ALTER TABLE s3_test ADD COLUMN col1 UInt64 DEFAULT 1")
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# To ensure parts have merged
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node.query("OPTIMIZE TABLE s3_test")
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# Wait for merges, mutations and old parts deletion
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time.sleep(3)
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assert node.query("SELECT sum(col1) FROM s3_test FORMAT Values") == "(8192)"
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assert node.query("SELECT sum(col1) FROM s3_test WHERE id > 0 FORMAT Values") == "(4096)"
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assert len(list(minio.list_objects(cluster.minio_bucket, 'data/'))) == FILES_OVERHEAD + FILES_OVERHEAD_PER_PART_WIDE + FILES_OVERHEAD_PER_COLUMN
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node.query("ALTER TABLE s3_test MODIFY COLUMN col1 String", settings={"mutations_sync": 2})
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# Wait for old parts deletion
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time.sleep(3)
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assert node.query("SELECT distinct(col1) FROM s3_test FORMAT Values") == "('1')"
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# and file with mutation
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assert len(list(minio.list_objects(cluster.minio_bucket, 'data/'))) == (FILES_OVERHEAD + FILES_OVERHEAD_PER_PART_WIDE + FILES_OVERHEAD_PER_COLUMN + 1)
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node.query("ALTER TABLE s3_test DROP COLUMN col1", settings={"mutations_sync": 2})
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# Wait for old parts deletion
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time.sleep(3)
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# and 2 files with mutations
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assert len(list(minio.list_objects(cluster.minio_bucket, 'data/'))) == FILES_OVERHEAD + FILES_OVERHEAD_PER_PART_WIDE + 2
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def test_attach_detach_partition(cluster):
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create_table(cluster, "s3_test")
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node = cluster.instances["node"]
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minio = cluster.minio_client
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node.query("INSERT INTO s3_test VALUES {}".format(generate_values('2020-01-03', 4096)))
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node.query("INSERT INTO s3_test VALUES {}".format(generate_values('2020-01-04', 4096)))
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assert node.query("SELECT count(*) FROM s3_test FORMAT Values") == "(8192)"
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assert len(list(minio.list_objects(cluster.minio_bucket, 'data/'))) == FILES_OVERHEAD + FILES_OVERHEAD_PER_PART_WIDE*2
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node.query("ALTER TABLE s3_test DETACH PARTITION '2020-01-03'")
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assert node.query("SELECT count(*) FROM s3_test FORMAT Values") == "(4096)"
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assert len(list(minio.list_objects(cluster.minio_bucket, 'data/'))) == FILES_OVERHEAD + FILES_OVERHEAD_PER_PART_WIDE*2
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node.query("ALTER TABLE s3_test ATTACH PARTITION '2020-01-03'")
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assert node.query("SELECT count(*) FROM s3_test FORMAT Values") == "(8192)"
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assert len(list(minio.list_objects(cluster.minio_bucket, 'data/'))) == FILES_OVERHEAD + FILES_OVERHEAD_PER_PART_WIDE*2
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node.query("ALTER TABLE s3_test DROP PARTITION '2020-01-03'")
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assert node.query("SELECT count(*) FROM s3_test FORMAT Values") == "(4096)"
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assert len(list(minio.list_objects(cluster.minio_bucket, 'data/'))) == FILES_OVERHEAD + FILES_OVERHEAD_PER_PART_WIDE
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node.query("ALTER TABLE s3_test DETACH PARTITION '2020-01-04'")
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node.query("SET allow_drop_detached=1; ALTER TABLE s3_test DROP DETACHED PARTITION '2020-01-04'")
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assert node.query("SELECT count(*) FROM s3_test FORMAT Values") == "(0)"
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assert len(list(minio.list_objects(cluster.minio_bucket, 'data/'))) == FILES_OVERHEAD
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def test_move_partition_to_another_disk(cluster):
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create_table(cluster, "s3_test")
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node = cluster.instances["node"]
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minio = cluster.minio_client
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node.query("INSERT INTO s3_test VALUES {}".format(generate_values('2020-01-03', 4096)))
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node.query("INSERT INTO s3_test VALUES {}".format(generate_values('2020-01-04', 4096)))
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assert node.query("SELECT count(*) FROM s3_test FORMAT Values") == "(8192)"
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assert len(list(minio.list_objects(cluster.minio_bucket, 'data/'))) == FILES_OVERHEAD + FILES_OVERHEAD_PER_PART_WIDE*2
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node.query("ALTER TABLE s3_test MOVE PARTITION '2020-01-04' TO DISK 'hdd'")
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assert node.query("SELECT count(*) FROM s3_test FORMAT Values") == "(8192)"
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assert len(list(minio.list_objects(cluster.minio_bucket, 'data/'))) == FILES_OVERHEAD + FILES_OVERHEAD_PER_PART_WIDE
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def test_table_manipulations(cluster):
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create_table(cluster, "s3_test")
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node = cluster.instances["node"]
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minio = cluster.minio_client
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node.query("INSERT INTO s3_test VALUES {}".format(generate_values('2020-01-03', 4096)))
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node.query("INSERT INTO s3_test VALUES {}".format(generate_values('2020-01-04', 4096)))
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node.query("RENAME TABLE s3_test TO s3_renamed")
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assert node.query("SELECT count(*) FROM s3_renamed FORMAT Values") == "(8192)"
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assert len(list(minio.list_objects(cluster.minio_bucket, 'data/'))) == FILES_OVERHEAD + FILES_OVERHEAD_PER_PART_WIDE*2
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node.query("RENAME TABLE s3_renamed TO s3_test")
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# TODO: Doesn't work with min_max index.
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#assert node.query("SET check_query_single_value_result='false'; CHECK TABLE s3_test FORMAT Values") == "(1)"
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node.query("DETACH TABLE s3_test")
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node.query("ATTACH TABLE s3_test")
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assert node.query("SELECT count(*) FROM s3_test FORMAT Values") == "(8192)"
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assert len(list(minio.list_objects(cluster.minio_bucket, 'data/'))) == FILES_OVERHEAD + FILES_OVERHEAD_PER_PART_WIDE*2
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node.query("TRUNCATE TABLE s3_test")
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assert node.query("SELECT count(*) FROM s3_test FORMAT Values") == "(0)"
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assert len(list(minio.list_objects(cluster.minio_bucket, 'data/'))) == FILES_OVERHEAD
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def test_move_replace_partition_to_another_table(cluster):
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create_table(cluster, "s3_test")
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node = cluster.instances["node"]
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minio = cluster.minio_client
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node.query("INSERT INTO s3_test VALUES {}".format(generate_values('2020-01-03', 4096)))
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node.query("INSERT INTO s3_test VALUES {}".format(generate_values('2020-01-04', 4096)))
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node.query("INSERT INTO s3_test VALUES {}".format(generate_values('2020-01-05', 4096, -1)))
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node.query("INSERT INTO s3_test VALUES {}".format(generate_values('2020-01-06', 4096, -1)))
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assert node.query("SELECT sum(id) FROM s3_test FORMAT Values") == "(0)"
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assert node.query("SELECT count(*) FROM s3_test FORMAT Values") == "(16384)"
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assert len(list(minio.list_objects(cluster.minio_bucket, 'data/'))) == FILES_OVERHEAD + FILES_OVERHEAD_PER_PART_WIDE*4
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create_table(cluster, "s3_clone")
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node.query("ALTER TABLE s3_test MOVE PARTITION '2020-01-03' TO TABLE s3_clone")
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node.query("ALTER TABLE s3_test MOVE PARTITION '2020-01-05' TO TABLE s3_clone")
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assert node.query("SELECT sum(id) FROM s3_test FORMAT Values") == "(0)"
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assert node.query("SELECT count(*) FROM s3_test FORMAT Values") == "(8192)"
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assert node.query("SELECT sum(id) FROM s3_clone FORMAT Values") == "(0)"
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assert node.query("SELECT count(*) FROM s3_clone FORMAT Values") == "(8192)"
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# Number of objects in S3 should be unchanged.
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assert len(list(minio.list_objects(cluster.minio_bucket, 'data/'))) == FILES_OVERHEAD*2 + FILES_OVERHEAD_PER_PART_WIDE*4
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# Add new partitions to source table, but with different values and replace them from copied table.
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node.query("INSERT INTO s3_test VALUES {}".format(generate_values('2020-01-03', 4096, -1)))
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node.query("INSERT INTO s3_test VALUES {}".format(generate_values('2020-01-05', 4096)))
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assert node.query("SELECT sum(id) FROM s3_test FORMAT Values") == "(0)"
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assert node.query("SELECT count(*) FROM s3_test FORMAT Values") == "(16384)"
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assert len(list(minio.list_objects(cluster.minio_bucket, 'data/'))) == FILES_OVERHEAD*2 + FILES_OVERHEAD_PER_PART_WIDE*6
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node.query("ALTER TABLE s3_test REPLACE PARTITION '2020-01-03' FROM s3_clone")
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node.query("ALTER TABLE s3_test REPLACE PARTITION '2020-01-05' FROM s3_clone")
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assert node.query("SELECT sum(id) FROM s3_test FORMAT Values") == "(0)"
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assert node.query("SELECT count(*) FROM s3_test FORMAT Values") == "(16384)"
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assert node.query("SELECT sum(id) FROM s3_clone FORMAT Values") == "(0)"
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assert node.query("SELECT count(*) FROM s3_clone FORMAT Values") == "(8192)"
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# Wait for outdated partitions deletion.
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time.sleep(3)
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assert len(list(minio.list_objects(cluster.minio_bucket, 'data/'))) == FILES_OVERHEAD*2 + FILES_OVERHEAD_PER_PART_WIDE*4
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node.query("DROP TABLE s3_clone")
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assert node.query("SELECT sum(id) FROM s3_test FORMAT Values") == "(0)"
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assert node.query("SELECT count(*) FROM s3_test FORMAT Values") == "(16384)"
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# Data should remain in S3
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assert len(list(minio.list_objects(cluster.minio_bucket, 'data/'))) == FILES_OVERHEAD + FILES_OVERHEAD_PER_PART_WIDE*4
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node.query("ALTER TABLE s3_test FREEZE")
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# Number S3 objects should be unchanged.
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assert len(list(minio.list_objects(cluster.minio_bucket, 'data/'))) == FILES_OVERHEAD + FILES_OVERHEAD_PER_PART_WIDE*4
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node.query("DROP TABLE s3_test")
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# Backup data should remain in S3.
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assert len(list(minio.list_objects(cluster.minio_bucket, 'data/'))) == FILES_OVERHEAD_PER_PART_WIDE*4
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for obj in list(minio.list_objects(cluster.minio_bucket, 'data/')):
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minio.remove_object(cluster.minio_bucket, obj.object_name)
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