02703_max_local_write_bandwidth is flaky

[rschu1ze]

2023-06-14 22:39:06 --- /usr/share/clickhouse-test/queries/0_stateless/02703_max_local_write_bandwidth.reference	2023-06-14 22:34:39.423279935 +0000
2023-06-14 22:39:06 +++ /tmp/clickhouse-test/0_stateless/02703_max_local_write_bandwidth.stdout	2023-06-14 22:39:06.011805935 +0000
2023-06-14 22:39:06 @@ -1 +1 @@
2023-06-14 22:39:06 -1	1	1	1
2023-06-14 22:39:06 +1	1	1	0
2023-06-14 22:39:06 
2023-06-14 22:39:06 
2023-06-14 22:39:06 Settings used in the test: --max_insert_threads=0 --group_by_two_level_threshold=1000000 --group_by_two_level_threshold_bytes=2866638 --distributed_aggregation_memory_efficient=0 --fsync_metadata=1 --output_format_parallel_formatting=1 --input_format_parallel_parsing=1 --min_chunk_bytes_for_parallel_parsing=15958966 --max_read_buffer_size=971885 --prefer_localhost_replica=0 --max_block_size=91698 --max_threads=60 --optimize_or_like_chain=0 --optimize_read_in_order=1 --enable_multiple_prewhere_read_steps=1 --read_in_order_two_level_merge_threshold=22 --optimize_aggregation_in_order=1 --aggregation_in_order_max_block_bytes=33347303 --min_compress_block_size=1873688 --max_compress_block_size=2385623 --use_uncompressed_cache=1 --min_bytes_to_use_direct_io=1 --min_bytes_to_use_mmap_io=4641159181 --local_filesystem_read_method=pread --remote_filesystem_read_method=threadpool --local_filesystem_read_prefetch=0 --remote_filesystem_read_prefetch=0 --allow_prefetched_read_pool_for_remote_filesystem=0 --filesystem_prefetch_max_memory_usage=64Mi --filesystem_prefetches_limit=10 --filesystem_prefetch_min_bytes_for_single_read_task=16Mi --filesystem_prefetch_step_marks=0 --filesystem_prefetch_step_bytes=0 --compile_expressions=1 --compile_aggregate_expressions=0 --compile_sort_description=0 --merge_tree_coarse_index_granularity=31 --optimize_distinct_in_order=1 --optimize_sorting_by_input_stream_properties=1 --http_response_buffer_size=1969479 --http_wait_end_of_query=False --enable_memory_bound_merging_of_aggregation_results=1
2023-06-14 22:39:06 
2023-06-14 22:39:06 MergeTree settings used in test: --ratio_of_defaults_for_sparse_serialization=0.0 --prefer_fetch_merged_part_size_threshold=10737418240 --vertical_merge_algorithm_min_rows_to_activate=1 --vertical_merge_algorithm_min_columns_to_activate=100 --allow_vertical_merges_from_compact_to_wide_parts=0 --min_merge_bytes_to_use_direct_io=9879160678 --index_granularity_bytes=5622614 --merge_max_block_size=11450 --index_granularity=33140 --min_bytes_for_wide_part=461084162 --marks_compress_block_size=36057 --primary_key_compress_block_size=25275
2023-06-14 22:39:06 
2023-06-14 22:39:06 Database: test_f3maum4y

https://play.clickhouse.com/play?user=play#c2VsZWN0IHB1bGxfcmVxdWVzdF9udW1iZXIgYXMgcHIsIGNoZWNrX3N0YXJ0X3RpbWUsIGNoZWNrX25hbWUsIHRlc3RfbmFtZSwgdGVzdF9zdGF0dXMgYXMgc3RhdHVzLCByZXBvcnRfdXJsCmZyb20gY2hlY2tzCndoZXJlIHRvRGF0ZShjaGVja19zdGFydF90aW1lKSA+ICcyMDIzLTA2LTAyJyBhbmQgdGVzdF9uYW1lIGxpa2UgJyUwMjcwM19tYXhfbG9jYWxfd3JpdGVfYmFuZHdpZHRoJScgYW5kIHN0YXR1cyA9PSAnRkFJTCcKb3JkZXIgYnkgY2hlY2tfc3RhcnRfdGltZSBkZXNj

[tavplubix]

Fixed by #51120