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304 lines
10 KiB
Python
304 lines
10 KiB
Python
from typing import Dict, Iterable
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import pytest
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from helpers.cluster import ClickHouseCluster
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from helpers.test_tools import TSV
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cluster = ClickHouseCluster(__file__)
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node = cluster.add_instance(
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"node",
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main_configs=[
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"configs/disk_s3.xml",
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"configs/named_collection_s3_backups.xml",
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"configs/s3_settings.xml",
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],
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user_configs=[
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"configs/zookeeper_retries.xml",
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],
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with_minio=True,
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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
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finally:
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cluster.shutdown()
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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"backup{backup_id_counter}"
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def get_events(events_names: Iterable[str]) -> Dict[str, int]:
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_events = TSV(
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node.query(
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f"SELECT event, value FROM system.events WHERE event in {events_names} SETTINGS system_events_show_zero_values = 1;"
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)
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)
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return {
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event: int(value)
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for event, value in [line.split("\t") for line in _events.lines]
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}
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def check_backup_and_restore(
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storage_policy, backup_destination, size=1000, backup_name=None, check_events=False
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):
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s3_backup_events = (
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"WriteBufferFromS3Microseconds",
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"WriteBufferFromS3Bytes",
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"WriteBufferFromS3RequestsErrors",
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)
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s3_restore_events = (
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"ReadBufferFromS3Microseconds",
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"ReadBufferFromS3Bytes",
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"ReadBufferFromS3RequestsErrors",
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)
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node.query(
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f"""
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DROP TABLE IF EXISTS data SYNC;
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CREATE TABLE data (key Int, value String, array Array(String)) Engine=MergeTree() ORDER BY tuple() SETTINGS storage_policy='{storage_policy}';
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INSERT INTO data SELECT * FROM generateRandom('key Int, value String, array Array(String)') LIMIT {size};
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OPTIMIZE TABLE data FINAL;
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"""
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)
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try:
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events_before_backups = get_events(s3_backup_events)
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node.query(f"BACKUP TABLE data TO {backup_destination}")
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events_after_backups = get_events(s3_backup_events)
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events_before_restore = get_events(s3_restore_events)
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node.query(
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f"""
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RESTORE TABLE data AS data_restored FROM {backup_destination};
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"""
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)
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events_after_restore = get_events(s3_restore_events)
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node.query(
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"""
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SELECT throwIf(
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(SELECT count(), sum(sipHash64(*)) FROM data) !=
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(SELECT count(), sum(sipHash64(*)) FROM data_restored),
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'Data does not matched after BACKUP/RESTORE'
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);
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"""
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)
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if check_events and backup_name:
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objects = node.cluster.minio_client.list_objects(
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"root", f"data/backups/multipart/{backup_name}/"
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)
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backup_meta_size = 0
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for obj in objects:
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if ".backup" in obj.object_name:
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backup_meta_size = obj.size
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break
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backup_total_size = int(
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node.query(
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f"SELECT sum(total_size) FROM system.backups WHERE status = 'BACKUP_CREATED' AND name like '%{backup_name}%'"
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).strip()
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)
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restore_total_size = int(
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node.query(
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f"SELECT sum(total_size) FROM system.backups WHERE status = 'RESTORED' AND name like '%{backup_name}%'"
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).strip()
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)
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# backup
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# NOTE: ~35 bytes is used by .lock file, so set up 100 bytes to avoid flaky test
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assert (
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abs(
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backup_total_size
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- (
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events_after_backups["WriteBufferFromS3Bytes"]
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- events_before_backups["WriteBufferFromS3Bytes"]
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- backup_meta_size
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)
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)
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< 100
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)
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assert (
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events_after_backups["WriteBufferFromS3Microseconds"]
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> events_before_backups["WriteBufferFromS3Microseconds"]
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)
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assert events_after_backups["WriteBufferFromS3RequestsErrors"] == 0
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# restore
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assert (
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events_after_restore["ReadBufferFromS3Bytes"]
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- events_before_restore["ReadBufferFromS3Bytes"]
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- backup_meta_size
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== restore_total_size
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)
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assert (
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events_after_restore["ReadBufferFromS3Microseconds"]
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> events_before_restore["ReadBufferFromS3Microseconds"]
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)
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assert events_after_restore["ReadBufferFromS3RequestsErrors"] == 0
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finally:
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node.query(
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"""
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DROP TABLE data SYNC;
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DROP TABLE IF EXISTS data_restored SYNC;
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"""
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)
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def check_system_tables():
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disks = [
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tuple(disk.split("\t"))
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for disk in node.query("SELECT name, type FROM system.disks").split("\n")
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if disk
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]
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expected_disks = (
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("default", "local"),
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("disk_s3", "s3"),
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("disk_s3_other_bucket", "s3"),
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("disk_s3_plain", "s3_plain"),
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)
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assert len(expected_disks) == len(disks)
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for expected_disk in expected_disks:
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if expected_disk not in disks:
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raise AssertionError(f"Missed {expected_disk} in {disks}")
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@pytest.mark.parametrize(
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"storage_policy, to_disk",
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[
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pytest.param(
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"default",
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"default",
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id="from_local_to_local",
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),
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pytest.param(
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"policy_s3",
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"default",
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id="from_s3_to_local",
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),
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pytest.param(
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"default",
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"disk_s3",
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id="from_local_to_s3",
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),
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pytest.param(
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"policy_s3",
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"disk_s3_plain",
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id="from_s3_to_s3_plain",
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),
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pytest.param(
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"default",
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"disk_s3_plain",
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id="from_local_to_s3_plain",
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),
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],
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)
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def test_backup_to_disk(storage_policy, to_disk):
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backup_name = new_backup_name()
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backup_destination = f"Disk('{to_disk}', '{backup_name}')"
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check_backup_and_restore(storage_policy, backup_destination)
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def test_backup_to_s3():
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storage_policy = "default"
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backup_name = new_backup_name()
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backup_destination = (
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f"S3('http://minio1:9001/root/data/backups/{backup_name}', 'minio', 'minio123')"
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)
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check_backup_and_restore(storage_policy, backup_destination)
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check_system_tables()
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def test_backup_to_s3_named_collection():
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storage_policy = "default"
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backup_name = new_backup_name()
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backup_destination = f"S3(named_collection_s3_backups, '{backup_name}')"
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check_backup_and_restore(storage_policy, backup_destination)
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def test_backup_to_s3_multipart():
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storage_policy = "default"
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backup_name = new_backup_name()
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backup_destination = f"S3('http://minio1:9001/root/data/backups/multipart/{backup_name}', 'minio', 'minio123')"
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check_backup_and_restore(
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storage_policy,
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backup_destination,
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size=1000000,
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backup_name=backup_name,
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check_events=True,
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)
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assert node.contains_in_log(
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f"copyDataToS3File: Multipart upload has completed. Bucket: root, Key: data/backups/multipart/{backup_name}"
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)
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def test_backup_to_s3_native_copy():
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storage_policy = "policy_s3"
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backup_name = new_backup_name()
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backup_destination = (
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f"S3('http://minio1:9001/root/data/backups/{backup_name}', 'minio', 'minio123')"
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)
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check_backup_and_restore(storage_policy, backup_destination)
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assert node.contains_in_log("BackupWriterS3.*using native copy")
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assert node.contains_in_log("BackupReaderS3.*using native copy")
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assert node.contains_in_log(
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f"copyS3File: Single operation copy has completed. Bucket: root, Key: data/backups/{backup_name}"
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)
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def test_backup_to_s3_native_copy_other_bucket():
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storage_policy = "policy_s3_other_bucket"
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backup_name = new_backup_name()
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backup_destination = (
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f"S3('http://minio1:9001/root/data/backups/{backup_name}', 'minio', 'minio123')"
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)
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check_backup_and_restore(storage_policy, backup_destination)
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assert node.contains_in_log("BackupWriterS3.*using native copy")
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assert node.contains_in_log("BackupReaderS3.*using native copy")
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assert node.contains_in_log(
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f"copyS3File: Single operation copy has completed. Bucket: root, Key: data/backups/{backup_name}"
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)
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def test_backup_to_s3_native_copy_multipart():
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storage_policy = "policy_s3"
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backup_name = new_backup_name()
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backup_destination = f"S3('http://minio1:9001/root/data/backups/multipart/{backup_name}', 'minio', 'minio123')"
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check_backup_and_restore(storage_policy, backup_destination, size=1000000)
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assert node.contains_in_log("BackupWriterS3.*using native copy")
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assert node.contains_in_log("BackupReaderS3.*using native copy")
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assert node.contains_in_log(
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f"copyS3File: Multipart upload has completed. Bucket: root, Key: data/backups/multipart/{backup_name}/"
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)
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def test_incremental_backup_append_table_def():
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backup_name = f"S3('http://minio1:9001/root/data/backups/{new_backup_name()}', 'minio', 'minio123')"
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node.query(
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"CREATE TABLE data (x UInt32, y String) Engine=MergeTree() ORDER BY y PARTITION BY x%10 SETTINGS storage_policy='policy_s3'"
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)
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node.query("INSERT INTO data SELECT number, toString(number) FROM numbers(100)")
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assert node.query("SELECT count(), sum(x) FROM data") == "100\t4950\n"
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node.query(f"BACKUP TABLE data TO {backup_name}")
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node.query("ALTER TABLE data MODIFY SETTING parts_to_throw_insert=100")
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incremental_backup_name = f"S3('http://minio1:9001/root/data/backups/{new_backup_name()}', 'minio', 'minio123')"
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node.query(
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f"BACKUP TABLE data TO {incremental_backup_name} SETTINGS base_backup = {backup_name}"
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)
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node.query("DROP TABLE data")
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node.query(f"RESTORE TABLE data FROM {incremental_backup_name}")
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assert node.query("SELECT count(), sum(x) FROM data") == "100\t4950\n"
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assert "parts_to_throw_insert = 100" in node.query("SHOW CREATE TABLE data")
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