ClickHouse/tests/integration/test_backup_restore_new/test.py
2022-04-26 18:45:39 +02:00

259 lines
8.6 KiB
Python

import pytest
import re
import os.path
from helpers.cluster import ClickHouseCluster
cluster = ClickHouseCluster(__file__)
instance = cluster.add_instance(
"instance", main_configs=["configs/backups_disk.xml"], external_dirs=["/backups/"]
)
def create_and_fill_table(engine="MergeTree"):
if engine == "MergeTree":
engine = "MergeTree ORDER BY y PARTITION BY x%10"
instance.query("CREATE DATABASE test")
instance.query(f"CREATE TABLE test.table(x UInt32, y String) ENGINE={engine}")
instance.query(
"INSERT INTO test.table SELECT number, toString(number) FROM numbers(100)"
)
@pytest.fixture(scope="module", autouse=True)
def start_cluster():
try:
cluster.start()
yield cluster
finally:
cluster.shutdown()
@pytest.fixture(autouse=True)
def cleanup_after_test():
try:
yield
finally:
instance.query("DROP DATABASE IF EXISTS test")
backup_id_counter = 0
def new_backup_name():
global backup_id_counter
backup_id_counter += 1
return f"Disk('backups', '{backup_id_counter}/')"
def get_path_to_backup(backup_name):
name = backup_name.split(",")[1].strip("')/ ")
return os.path.join(instance.cluster.instances_dir, "backups", name)
@pytest.mark.parametrize(
"engine", ["MergeTree", "Log", "TinyLog", "StripeLog", "Memory"]
)
def test_restore_table(engine):
backup_name = new_backup_name()
create_and_fill_table(engine=engine)
assert instance.query("SELECT count(), sum(x) FROM test.table") == "100\t4950\n"
instance.query(f"BACKUP TABLE test.table TO {backup_name}")
instance.query("DROP TABLE test.table")
assert instance.query("EXISTS test.table") == "0\n"
instance.query(f"RESTORE TABLE test.table FROM {backup_name}")
assert instance.query("SELECT count(), sum(x) FROM test.table") == "100\t4950\n"
@pytest.mark.parametrize(
"engine", ["MergeTree", "Log", "TinyLog", "StripeLog", "Memory"]
)
def test_restore_table_into_existing_table(engine):
backup_name = new_backup_name()
create_and_fill_table(engine=engine)
assert instance.query("SELECT count(), sum(x) FROM test.table") == "100\t4950\n"
instance.query(f"BACKUP TABLE test.table TO {backup_name}")
instance.query(f"RESTORE TABLE test.table INTO test.table FROM {backup_name}")
assert instance.query("SELECT count(), sum(x) FROM test.table") == "200\t9900\n"
instance.query(f"RESTORE TABLE test.table INTO test.table FROM {backup_name}")
assert instance.query("SELECT count(), sum(x) FROM test.table") == "300\t14850\n"
def test_restore_table_under_another_name():
backup_name = new_backup_name()
create_and_fill_table()
assert instance.query("SELECT count(), sum(x) FROM test.table") == "100\t4950\n"
instance.query(f"BACKUP TABLE test.table TO {backup_name}")
assert instance.query("EXISTS test.table2") == "0\n"
instance.query(f"RESTORE TABLE test.table INTO test.table2 FROM {backup_name}")
assert instance.query("SELECT count(), sum(x) FROM test.table2") == "100\t4950\n"
def test_backup_table_under_another_name():
backup_name = new_backup_name()
create_and_fill_table()
assert instance.query("SELECT count(), sum(x) FROM test.table") == "100\t4950\n"
instance.query(f"BACKUP TABLE test.table AS test.table2 TO {backup_name}")
assert instance.query("EXISTS test.table2") == "0\n"
instance.query(f"RESTORE TABLE test.table2 FROM {backup_name}")
assert instance.query("SELECT count(), sum(x) FROM test.table2") == "100\t4950\n"
def test_materialized_view():
backup_name = new_backup_name()
instance.query(
"CREATE MATERIALIZED VIEW mv_1(x UInt8) ENGINE=MergeTree ORDER BY tuple() POPULATE AS SELECT 1 AS x"
)
instance.query(f"BACKUP TABLE mv_1 TO {backup_name}")
instance.query("DROP TABLE mv_1")
instance.query(f"RESTORE TABLE mv_1 FROM {backup_name}")
assert instance.query("SELECT * FROM mv_1") == "1\n"
instance.query("DROP TABLE mv_1")
def test_incremental_backup():
backup_name = new_backup_name()
incremental_backup_name = new_backup_name()
create_and_fill_table()
assert instance.query("SELECT count(), sum(x) FROM test.table") == "100\t4950\n"
instance.query(f"BACKUP TABLE test.table TO {backup_name}")
instance.query("INSERT INTO test.table VALUES (65, 'a'), (66, 'b')")
assert instance.query("SELECT count(), sum(x) FROM test.table") == "102\t5081\n"
instance.query(
f"BACKUP TABLE test.table TO {incremental_backup_name} SETTINGS base_backup = {backup_name}"
)
instance.query(
f"RESTORE TABLE test.table AS test.table2 FROM {incremental_backup_name}"
)
assert instance.query("SELECT count(), sum(x) FROM test.table2") == "102\t5081\n"
def test_incremental_backup_after_renaming_table():
backup_name = new_backup_name()
incremental_backup_name = new_backup_name()
create_and_fill_table()
instance.query(f"BACKUP TABLE test.table TO {backup_name}")
instance.query("RENAME TABLE test.table TO test.table2")
instance.query(
f"BACKUP TABLE test.table2 TO {incremental_backup_name} SETTINGS base_backup = {backup_name}"
)
# Files in a base backup can be searched by checksum, so an incremental backup with a renamed table actually
# contains only its changed metadata.
assert (
os.path.isdir(os.path.join(get_path_to_backup(backup_name), "metadata")) == True
)
assert os.path.isdir(os.path.join(get_path_to_backup(backup_name), "data")) == True
assert (
os.path.isdir(
os.path.join(get_path_to_backup(incremental_backup_name), "metadata")
)
== True
)
assert (
os.path.isdir(os.path.join(get_path_to_backup(incremental_backup_name), "data"))
== False
)
instance.query("DROP TABLE test.table2")
instance.query(f"RESTORE TABLE test.table2 FROM {incremental_backup_name}")
assert instance.query("SELECT count(), sum(x) FROM test.table2") == "100\t4950\n"
def test_backup_not_found_or_already_exists():
backup_name = new_backup_name()
expected_error = "Backup .* not found"
assert re.search(
expected_error,
instance.query_and_get_error(
f"RESTORE TABLE test.table AS test.table2 FROM {backup_name}"
),
)
create_and_fill_table()
instance.query(f"BACKUP TABLE test.table TO {backup_name}")
expected_error = "Backup .* already exists"
assert re.search(
expected_error,
instance.query_and_get_error(f"BACKUP TABLE test.table TO {backup_name}"),
)
def test_file_engine():
backup_name = f"File('/backups/file/')"
create_and_fill_table()
assert instance.query("SELECT count(), sum(x) FROM test.table") == "100\t4950\n"
instance.query(f"BACKUP TABLE test.table TO {backup_name}")
instance.query("DROP TABLE test.table")
assert instance.query("EXISTS test.table") == "0\n"
instance.query(f"RESTORE TABLE test.table FROM {backup_name}")
assert instance.query("SELECT count(), sum(x) FROM test.table") == "100\t4950\n"
def test_database():
backup_name = new_backup_name()
create_and_fill_table()
assert instance.query("SELECT count(), sum(x) FROM test.table") == "100\t4950\n"
instance.query(f"BACKUP DATABASE test TO {backup_name}")
instance.query("DROP DATABASE test")
instance.query(f"RESTORE DATABASE test FROM {backup_name}")
assert instance.query("SELECT count(), sum(x) FROM test.table") == "100\t4950\n"
def test_zip_archive():
backup_name = f"Disk('backups', 'archive.zip')"
create_and_fill_table()
assert instance.query("SELECT count(), sum(x) FROM test.table") == "100\t4950\n"
instance.query(f"BACKUP TABLE test.table TO {backup_name}")
assert os.path.isfile(get_path_to_backup(backup_name))
instance.query("DROP TABLE test.table")
assert instance.query("EXISTS test.table") == "0\n"
instance.query(f"RESTORE TABLE test.table FROM {backup_name}")
assert instance.query("SELECT count(), sum(x) FROM test.table") == "100\t4950\n"
def test_zip_archive_with_settings():
backup_name = f"Disk('backups', 'archive_with_settings.zip')"
create_and_fill_table()
assert instance.query("SELECT count(), sum(x) FROM test.table") == "100\t4950\n"
instance.query(
f"BACKUP TABLE test.table TO {backup_name} SETTINGS compression_method='lzma', compression_level=3, password='qwerty'"
)
instance.query("DROP TABLE test.table")
assert instance.query("EXISTS test.table") == "0\n"
instance.query(
f"RESTORE TABLE test.table FROM {backup_name} SETTINGS password='qwerty'"
)
assert instance.query("SELECT count(), sum(x) FROM test.table") == "100\t4950\n"