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489 lines
16 KiB
Python
489 lines
16 KiB
Python
import pytest
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import re
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import os.path
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from helpers.cluster import ClickHouseCluster
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from helpers.test_tools import assert_eq_with_retry, TSV
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cluster = ClickHouseCluster(__file__)
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instance = cluster.add_instance(
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"instance", main_configs=["configs/backups_disk.xml"], external_dirs=["/backups/"]
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)
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def create_and_fill_table(engine="MergeTree", n=100):
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if engine == "MergeTree":
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engine = "MergeTree ORDER BY y PARTITION BY x%10"
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instance.query("CREATE DATABASE test")
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instance.query(f"CREATE TABLE test.table(x UInt32, y String) ENGINE={engine}")
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instance.query(
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f"INSERT INTO test.table SELECT number, toString(number) FROM numbers({n})"
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)
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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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@pytest.fixture(autouse=True)
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def cleanup_after_test():
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try:
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yield
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finally:
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instance.query("DROP DATABASE IF EXISTS test")
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instance.query("DROP DATABASE IF EXISTS test2")
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instance.query("DROP DATABASE IF EXISTS test3")
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backup_id_counter = 0
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def new_backup_name():
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global backup_id_counter
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backup_id_counter += 1
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return f"Disk('backups', '{backup_id_counter}/')"
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def get_path_to_backup(backup_name):
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name = backup_name.split(",")[1].strip("')/ ")
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return os.path.join(instance.cluster.instances_dir, "backups", name)
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session_id_counter = 0
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def new_session_id():
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global session_id_counter
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session_id_counter += 1
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return "Session #" + str(session_id_counter)
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@pytest.mark.parametrize(
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"engine", ["MergeTree", "Log", "TinyLog", "StripeLog", "Memory"]
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)
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def test_restore_table(engine):
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backup_name = new_backup_name()
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create_and_fill_table(engine=engine)
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assert instance.query("SELECT count(), sum(x) FROM test.table") == "100\t4950\n"
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instance.query(f"BACKUP TABLE test.table TO {backup_name}")
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instance.query("DROP TABLE test.table")
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assert instance.query("EXISTS test.table") == "0\n"
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instance.query(f"RESTORE TABLE test.table FROM {backup_name}")
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assert instance.query("SELECT count(), sum(x) FROM test.table") == "100\t4950\n"
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@pytest.mark.parametrize(
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"engine", ["MergeTree", "Log", "TinyLog", "StripeLog", "Memory"]
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)
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def test_restore_table_into_existing_table(engine):
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backup_name = new_backup_name()
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create_and_fill_table(engine=engine)
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assert instance.query("SELECT count(), sum(x) FROM test.table") == "100\t4950\n"
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instance.query(f"BACKUP TABLE test.table TO {backup_name}")
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expected_error = "already contains some data"
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assert expected_error in instance.query_and_get_error(
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f"RESTORE TABLE test.table FROM {backup_name}"
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)
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instance.query(
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f"RESTORE TABLE test.table FROM {backup_name} SETTINGS structure_only=true"
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)
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assert instance.query("SELECT count(), sum(x) FROM test.table") == "100\t4950\n"
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instance.query(
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f"RESTORE TABLE test.table FROM {backup_name} SETTINGS allow_non_empty_tables=true"
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)
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assert instance.query("SELECT count(), sum(x) FROM test.table") == "200\t9900\n"
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def test_restore_table_under_another_name():
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backup_name = new_backup_name()
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create_and_fill_table()
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assert instance.query("SELECT count(), sum(x) FROM test.table") == "100\t4950\n"
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instance.query(f"BACKUP TABLE test.table TO {backup_name}")
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assert instance.query("EXISTS test.table2") == "0\n"
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instance.query(f"RESTORE TABLE test.table AS test.table2 FROM {backup_name}")
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assert instance.query("SELECT count(), sum(x) FROM test.table2") == "100\t4950\n"
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def test_backup_table_under_another_name():
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backup_name = new_backup_name()
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create_and_fill_table()
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assert instance.query("SELECT count(), sum(x) FROM test.table") == "100\t4950\n"
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instance.query(f"BACKUP TABLE test.table AS test.table2 TO {backup_name}")
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assert instance.query("EXISTS test.table2") == "0\n"
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instance.query(f"RESTORE TABLE test.table2 FROM {backup_name}")
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assert instance.query("SELECT count(), sum(x) FROM test.table2") == "100\t4950\n"
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def test_materialized_view():
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backup_name = new_backup_name()
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instance.query(
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"CREATE MATERIALIZED VIEW mv_1(x UInt8) ENGINE=MergeTree ORDER BY tuple() POPULATE AS SELECT 1 AS x"
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)
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instance.query(f"BACKUP TABLE mv_1 TO {backup_name}")
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instance.query("DROP TABLE mv_1")
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instance.query(f"RESTORE TABLE mv_1 FROM {backup_name}")
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assert instance.query("SELECT * FROM mv_1") == "1\n"
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instance.query("DROP TABLE mv_1")
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def test_incremental_backup():
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backup_name = new_backup_name()
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incremental_backup_name = new_backup_name()
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create_and_fill_table()
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assert instance.query("SELECT count(), sum(x) FROM test.table") == "100\t4950\n"
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instance.query(f"BACKUP TABLE test.table TO {backup_name}")
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instance.query("INSERT INTO test.table VALUES (65, 'a'), (66, 'b')")
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assert instance.query("SELECT count(), sum(x) FROM test.table") == "102\t5081\n"
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instance.query(
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f"BACKUP TABLE test.table TO {incremental_backup_name} SETTINGS base_backup = {backup_name}"
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)
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instance.query(
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f"RESTORE TABLE test.table AS test.table2 FROM {incremental_backup_name}"
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)
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assert instance.query("SELECT count(), sum(x) FROM test.table2") == "102\t5081\n"
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def test_incremental_backup_after_renaming_table():
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backup_name = new_backup_name()
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incremental_backup_name = new_backup_name()
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create_and_fill_table()
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instance.query(f"BACKUP TABLE test.table TO {backup_name}")
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instance.query("RENAME TABLE test.table TO test.table2")
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instance.query(
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f"BACKUP TABLE test.table2 TO {incremental_backup_name} SETTINGS base_backup = {backup_name}"
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)
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# Files in a base backup can be searched by checksum, so an incremental backup with a renamed table actually
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# contains only its changed metadata.
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assert (
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os.path.isdir(os.path.join(get_path_to_backup(backup_name), "metadata")) == True
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)
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assert os.path.isdir(os.path.join(get_path_to_backup(backup_name), "data")) == True
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assert (
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os.path.isdir(
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os.path.join(get_path_to_backup(incremental_backup_name), "metadata")
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)
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== True
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)
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assert (
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os.path.isdir(os.path.join(get_path_to_backup(incremental_backup_name), "data"))
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== False
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)
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instance.query("DROP TABLE test.table2")
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instance.query(f"RESTORE TABLE test.table2 FROM {incremental_backup_name}")
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assert instance.query("SELECT count(), sum(x) FROM test.table2") == "100\t4950\n"
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def test_backup_not_found_or_already_exists():
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backup_name = new_backup_name()
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expected_error = "Backup .* not found"
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assert re.search(
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expected_error,
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instance.query_and_get_error(
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f"RESTORE TABLE test.table AS test.table2 FROM {backup_name}"
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),
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)
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create_and_fill_table()
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instance.query(f"BACKUP TABLE test.table TO {backup_name}")
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expected_error = "Backup .* already exists"
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assert re.search(
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expected_error,
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instance.query_and_get_error(f"BACKUP TABLE test.table TO {backup_name}"),
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)
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def test_file_engine():
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backup_name = f"File('/backups/file/')"
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create_and_fill_table()
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assert instance.query("SELECT count(), sum(x) FROM test.table") == "100\t4950\n"
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instance.query(f"BACKUP TABLE test.table TO {backup_name}")
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instance.query("DROP TABLE test.table")
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assert instance.query("EXISTS test.table") == "0\n"
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instance.query(f"RESTORE TABLE test.table FROM {backup_name}")
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assert instance.query("SELECT count(), sum(x) FROM test.table") == "100\t4950\n"
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def test_database():
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backup_name = new_backup_name()
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create_and_fill_table()
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assert instance.query("SELECT count(), sum(x) FROM test.table") == "100\t4950\n"
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instance.query(f"BACKUP DATABASE test TO {backup_name}")
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instance.query("DROP DATABASE test")
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instance.query(f"RESTORE DATABASE test FROM {backup_name}")
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assert instance.query("SELECT count(), sum(x) FROM test.table") == "100\t4950\n"
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def test_zip_archive():
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backup_name = f"Disk('backups', 'archive.zip')"
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create_and_fill_table()
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assert instance.query("SELECT count(), sum(x) FROM test.table") == "100\t4950\n"
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instance.query(f"BACKUP TABLE test.table TO {backup_name}")
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assert os.path.isfile(get_path_to_backup(backup_name))
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instance.query("DROP TABLE test.table")
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assert instance.query("EXISTS test.table") == "0\n"
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instance.query(f"RESTORE TABLE test.table FROM {backup_name}")
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assert instance.query("SELECT count(), sum(x) FROM test.table") == "100\t4950\n"
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def test_zip_archive_with_settings():
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backup_name = f"Disk('backups', 'archive_with_settings.zip')"
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create_and_fill_table()
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assert instance.query("SELECT count(), sum(x) FROM test.table") == "100\t4950\n"
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instance.query(
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f"BACKUP TABLE test.table TO {backup_name} SETTINGS compression_method='lzma', compression_level=3, password='qwerty'"
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)
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instance.query("DROP TABLE test.table")
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assert instance.query("EXISTS test.table") == "0\n"
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instance.query(
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f"RESTORE TABLE test.table FROM {backup_name} SETTINGS password='qwerty'"
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)
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assert instance.query("SELECT count(), sum(x) FROM test.table") == "100\t4950\n"
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def test_async():
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create_and_fill_table()
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assert instance.query("SELECT count(), sum(x) FROM test.table") == "100\t4950\n"
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backup_name = new_backup_name()
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[id, _, status] = instance.query(
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f"BACKUP TABLE test.table TO {backup_name} ASYNC"
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).split("\t")
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assert status == "MAKING_BACKUP\n" or status == "BACKUP_COMPLETE\n"
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assert_eq_with_retry(
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instance,
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f"SELECT status FROM system.backups WHERE uuid='{id}'",
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"BACKUP_COMPLETE\n",
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)
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instance.query("DROP TABLE test.table")
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[id, _, status] = instance.query(
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f"RESTORE TABLE test.table FROM {backup_name} ASYNC"
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).split("\t")
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assert status == "RESTORING\n" or status == "RESTORED\n"
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assert_eq_with_retry(
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instance, f"SELECT status FROM system.backups WHERE uuid='{id}'", "RESTORED\n"
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)
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assert instance.query("SELECT count(), sum(x) FROM test.table") == "100\t4950\n"
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def test_dependencies():
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create_and_fill_table()
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instance.query("CREATE VIEW test.view AS SELECT x, y AS w FROM test.table")
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instance.query(
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"CREATE DICTIONARY test.dict1(x UInt32, w String) PRIMARY KEY x SOURCE(CLICKHOUSE(HOST 'localhost' PORT tcpPort() DB 'test' TABLE 'view')) LAYOUT(FLAT()) LIFETIME(0)"
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)
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instance.query(
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"CREATE DICTIONARY test.dict2(x UInt32, w String) PRIMARY KEY w SOURCE(CLICKHOUSE(HOST 'localhost' PORT tcpPort() DB 'test' TABLE 'dict1')) LAYOUT(FLAT()) LIFETIME(0)"
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)
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instance.query(
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"CREATE TABLE test.table2(k String, v Int32 DEFAULT dictGet('test.dict2', 'x', k) - 1) ENGINE=MergeTree ORDER BY tuple()"
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)
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instance.query("INSERT INTO test.table2 (k) VALUES ('7'), ('96'), ('124')")
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assert instance.query("SELECT * FROM test.table2 ORDER BY k") == TSV(
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[["124", -1], ["7", 6], ["96", 95]]
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)
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backup_name = new_backup_name()
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instance.query(f"BACKUP DATABASE test AS test2 TO {backup_name}")
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instance.query("DROP DATABASE test")
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instance.query(f"RESTORE DATABASE test2 AS test3 FROM {backup_name}")
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assert instance.query("SELECT * FROM test3.table2 ORDER BY k") == TSV(
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[["124", -1], ["7", 6], ["96", 95]]
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)
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instance.query("INSERT INTO test3.table2 (k) VALUES ('63'), ('152'), ('71')")
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assert instance.query("SELECT * FROM test3.table2 ORDER BY k") == TSV(
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[["124", -1], ["152", -1], ["63", 62], ["7", 6], ["71", 70], ["96", 95]]
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)
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def test_materialized_view():
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create_and_fill_table(n=5)
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instance.query(
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"CREATE MATERIALIZED VIEW test.view ENGINE=MergeTree ORDER BY tuple() POPULATE AS SELECT y, x FROM test.table"
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)
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instance.query("INSERT INTO test.table VALUES (990, 'a')")
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backup_name = new_backup_name()
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instance.query(f"BACKUP DATABASE test TO {backup_name}")
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assert sorted(
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os.listdir(os.path.join(get_path_to_backup(backup_name), "metadata/test"))
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) == ["table.sql", "view.sql"]
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assert sorted(
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os.listdir(os.path.join(get_path_to_backup(backup_name), "data/test"))
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) == ["table", "view"]
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view_create_query = open(
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os.path.join(get_path_to_backup(backup_name), "metadata/test/view.sql")
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).read()
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assert view_create_query.startswith("CREATE MATERIALIZED VIEW test.view")
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assert "POPULATE" not in view_create_query
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instance.query("DROP DATABASE test")
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instance.query(f"RESTORE DATABASE test FROM {backup_name}")
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instance.query("INSERT INTO test.table VALUES (991, 'b')")
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assert instance.query("SELECT * FROM test.view ORDER BY x") == TSV(
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[["0", 0], ["1", 1], ["2", 2], ["3", 3], ["4", 4], ["a", 990], ["b", 991]]
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)
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def test_materialized_view_with_target_table():
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create_and_fill_table(n=5)
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instance.query(
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"CREATE TABLE test.target(x Int64, y String) ENGINE=MergeTree ORDER BY tuple()"
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)
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instance.query(
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"CREATE MATERIALIZED VIEW test.view TO test.target AS SELECT y, x FROM test.table"
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)
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instance.query("INSERT INTO test.table VALUES (990, 'a')")
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backup_name = new_backup_name()
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instance.query(f"BACKUP DATABASE test TO {backup_name}")
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assert sorted(
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os.listdir(os.path.join(get_path_to_backup(backup_name), "metadata/test"))
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) == ["table.sql", "target.sql", "view.sql"]
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assert sorted(
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os.listdir(os.path.join(get_path_to_backup(backup_name), "data/test"))
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) == ["table", "target"]
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instance.query("DROP DATABASE test")
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instance.query(f"RESTORE DATABASE test FROM {backup_name}")
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instance.query("INSERT INTO test.table VALUES (991, 'b')")
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assert instance.query("SELECT * FROM test.view ORDER BY x") == TSV(
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[["a", 990], ["b", 991]]
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)
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def test_temporary_table():
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session_id = new_session_id()
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instance.http_query(
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"CREATE TEMPORARY TABLE temp_tbl(s String)", params={"session_id": session_id}
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)
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instance.http_query(
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"INSERT INTO temp_tbl VALUES ('q')", params={"session_id": session_id}
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)
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instance.http_query(
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"INSERT INTO temp_tbl VALUES ('w'), ('e')", params={"session_id": session_id}
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)
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backup_name = new_backup_name()
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instance.http_query(
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f"BACKUP TEMPORARY TABLE temp_tbl TO {backup_name}",
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params={"session_id": session_id},
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)
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session_id = new_session_id()
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instance.http_query(
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f"RESTORE TEMPORARY TABLE temp_tbl FROM {backup_name}",
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params={"session_id": session_id},
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)
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assert instance.http_query(
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"SELECT * FROM temp_tbl ORDER BY s", params={"session_id": session_id}
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) == TSV([["e"], ["q"], ["w"]])
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# We allow BACKUP DATABASE _temporary_and_external_tables only if the backup doesn't contain any table.
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def test_temporary_tables_database():
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session_id = new_session_id()
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instance.http_query(
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"CREATE TEMPORARY TABLE temp_tbl(s String)", params={"session_id": session_id}
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)
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backup_name = new_backup_name()
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instance.query(f"BACKUP DATABASE _temporary_and_external_tables TO {backup_name}")
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assert os.listdir(os.path.join(get_path_to_backup(backup_name), "metadata/")) == [
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"_temporary_and_external_tables.sql" # database metadata only
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]
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def test_system_table():
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backup_name = new_backup_name()
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instance.query(f"BACKUP TABLE system.numbers TO {backup_name}")
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assert os.listdir(
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os.path.join(get_path_to_backup(backup_name), "metadata/system")
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) == ["numbers.sql"]
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assert not os.path.isdir(os.path.join(get_path_to_backup(backup_name), "data"))
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create_query = open(
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os.path.join(get_path_to_backup(backup_name), "metadata/system/numbers.sql")
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).read()
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assert (
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create_query
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== "CREATE TABLE system.numbers (`number` UInt64) ENGINE = SystemNumbers"
|
|
)
|
|
|
|
instance.query(f"RESTORE TABLE system.numbers FROM {backup_name}")
|
|
|
|
|
|
def test_system_database():
|
|
backup_name = new_backup_name()
|
|
instance.query(f"BACKUP DATABASE system TO {backup_name}")
|
|
|
|
assert "numbers.sql" in os.listdir(
|
|
os.path.join(get_path_to_backup(backup_name), "metadata/system")
|
|
)
|
|
|
|
create_query = open(
|
|
os.path.join(get_path_to_backup(backup_name), "metadata/system/numbers.sql")
|
|
).read()
|
|
|
|
assert (
|
|
create_query
|
|
== "CREATE TABLE system.numbers (`number` UInt64) ENGINE = SystemNumbers"
|
|
)
|