ClickHouse/tests/integration/test_storage_s3_queue
Julia Kartseva d6ecabb41d Fix flaky test_storage_s3_queue/test.py::test_multiple_tables_streaming_sync_distributed
Disable parallel processing for the Ordered mode for the
test_storage_s3_queue/test.py::test_multiple_tables_streaming_sync_distributed
test.

The reason for this is that the load between the processing nodes is
too uneven when s3queue_processing_threads_num != 1,
e.g.:

```
$ grep res1 pytest.log
2024-08-07 07:15:58 [ 575 ] DEBUG : res1 size: 13300, res2 size: 1700, total_rows: 15000 (test.py:813, test_multiple_tables_streaming_sync_distributed)
```

In CIs environment, there are rare cases when one of the processors handles all the workload,
while the other is busy-waiting, and the test fails on assert:

When s3queue_processing_threads_num == 1, the workload is evenly
distributed:

```
$ grep res1 pytest.log
2024-08-07 07:26:52 [ 586 ] DEBUG : res1 size: 7200, res2 size: 7800, total_rows: 15000 (test.py:813, test_multiple_tables_streaming_sync_distributed)
```

This change only fixes test flakiness. Further investigation of the Order
mode parallelism is required.
2024-08-08 06:13:36 +00:00
..
configs S3Queue small fixes 2024-06-10 19:39:37 +02:00
__init__.py
test.py Fix flaky test_storage_s3_queue/test.py::test_multiple_tables_streaming_sync_distributed 2024-08-08 06:13:36 +00:00