Files
Alexey MilovidovandClaude Opus 4.8 295ced78d1 Enable more Ruff checks (F401/F403/F405/F541/F841) and clean up tests
Follow-up to #105171, which added `ruff` with a deliberately narrow,
bug-class-only rule set and left the unused-name and star-import rules
off pending a dedicated cleanup pass. This enables that second batch in
`pyproject.toml` and fixes every violation across the tree (the bulk in
integration tests):

- `F401` unused-import and `F841` unused-variable: removed, preserving
  any side-effecting right-hand side (e.g. `result = node.query(...)`
  becomes `node.query(...)`). Two `try: import ...` feature probes are
  kept with `# noqa: F401`.
- `F541` f-string-missing-placeholders: dropped the redundant `f` prefix.
- `F403`/`F405` star imports: every `from module import *` is expanded
  into explicit imports of the names actually used, taken from each
  name's real origin, so stdlib/third-party names import from their real
  source rather than through a test "convenience bundle". The now-empty
  `tests/integration/helpers/kafka/common_direct.py` bundle is removed and
  its three remaining consumers import `_VarintBytes`/`KafkaAdminClient`
  directly.

Eliminating the star imports surfaced a real bug the wildcard had masked
from `F821`: `generate_presets.py` in `test_prometheus_protocols` called
an undefined `execute_instant_query_with_http_api`; fixed to the existing
`execute_query_via_http_api`.

No `black`/`isort` reformatting was applied (neither is enforced in the
style check), so the diff is limited to the lint fixes themselves.

Co-Authored-By: Claude Opus 4.8 (1M context) <[email protected]>
2026-06-18 23:22:25 +00:00

78 lines
2.4 KiB
Python

from multiprocessing.dummy import Pool
import pytest
from helpers.cluster import ClickHouseCluster
from helpers.corrupt_part_data_on_disk import corrupt_part_data_on_disk
cluster = ClickHouseCluster(__file__)
node1 = cluster.add_instance("node1", with_zookeeper=True)
@pytest.fixture(scope="module")
def started_cluster():
try:
cluster.start()
yield cluster
finally:
cluster.shutdown()
def test_merge_and_part_corruption(started_cluster):
node1.query(
"""
CREATE TABLE replicated_mt(date Date, id UInt32, value Int32)
ENGINE = ReplicatedMergeTree('/clickhouse/tables/replicated_mt', '{replica}') ORDER BY id
SETTINGS cleanup_delay_period=1, cleanup_delay_period_random_add=1, cleanup_thread_preferred_points_per_iteration=0;
""".format(
replica=node1.name
)
)
node1.query("SYSTEM STOP REPLICATION QUEUES replicated_mt")
for i in range(4):
node1.query(
"INSERT INTO replicated_mt SELECT toDate('2019-10-01'), number, number * number FROM numbers ({f}, 100000)".format(
f=i * 100000
)
)
assert (
node1.query(
"SELECT COUNT() FROM system.parts WHERE table='replicated_mt' AND active=1"
)
== "4\n"
)
# Need to corrupt "border part" (left or right). If we will corrupt something in the middle
# clickhouse will not consider merge as broken, because we have parts with the same min and max
# block numbers.
corrupt_part_data_on_disk(node1, "replicated_mt", "all_3_3_0")
with Pool(1) as p:
def optimize_with_delay(x):
node1.query("OPTIMIZE TABLE replicated_mt FINAL", timeout=120)
# corrupt part after merge already assigned, but not started
res_opt = p.apply_async(optimize_with_delay, (1,))
node1.query(
"CHECK TABLE replicated_mt",
settings={"check_query_single_value_result": 0, "max_threads": 1},
)
# start merge
node1.query("SYSTEM START REPLICATION QUEUES replicated_mt")
res_opt.get()
# will hung if checked bug not fixed
node1.query(
"ALTER TABLE replicated_mt UPDATE value = 7 WHERE 1",
settings={"mutations_sync": 2},
timeout=120,
)
assert node1.query("SELECT sum(value) FROM replicated_mt") == "2100000\n"
node1.query("DROP TABLE replicated_mt SYNC")