Recent failures on CI [1]:
2024.10.06 16:28:33.624022 [ 620 ] {0e953192-be08-422a-a21f-c3b6f8f5e24d} <Debug> executeQuery: (from [::1]:58814) (comment: 02125_many_mutations.sh) system start merges many_mutations; (stage: Complete)
2024.10.06 16:28:33.624022 [ 620 ] {0e953192-be08-422a-a21f-c3b6f8f5e24d} <Debug> executeQuery: (from [::1]:58814) (comment: 02125_many_mutations.sh) system start merges many_mutations; (stage: Complete)
2024.10.06 16:28:33.624408 [ 620 ] {0e953192-be08-422a-a21f-c3b6f8f5e24d} <Debug> TCPHandler: Processed in 0.00091483 sec.
2024.10.06 16:28:33.624480 [ 929 ] {} <Debug> MutationsInterpreter(test_xa6pnknp.many_mutations): Will use old analyzer to prepare mutation
...
2024.10.06 16:28:33.625358 [ 620 ] {d6a3f295-498f-48e2-8af7-bbec46e03a7e} <Debug> executeQuery: (from [::1]:58814) (comment: 02125_many_mutations.sh) optimize table many_mutations final SETTINGS optimize_throw_if_noop = 1; (stage: Complete)
...
2024.10.06 16:28:37.765705 [ 929 ] {} <Debug> MutationsInterpreter(test_xa6pnknp.many_mutations): Will use old analyzer to prepare mutation
2024.10.06 16:28:37.765881 [ 929 ] {} <Trace> DiskLocal: Reserved 1.00 MiB on local disk `default`, having unreserved 127.09 GiB.
2024.10.06 16:28:37.765946 [ 620 ] {d6a3f295-498f-48e2-8af7-bbec46e03a7e} <Debug> test_xa6pnknp.many_mutations (32de70b8-ea0a-4766-ac95-8ebc7923205e): Waiting for currently running merges (1 parts are merging right now) to perform OPTIMIZE FINAL
...
2024.10.06 16:28:37.968946 [ 1227 ] {32de70b8-ea0a-4766-ac95-8ebc7923205e::all_1_1_0_20001} <Debug> MutationsInterpreter(test_xa6pnknp.many_mutations): Will use old analyzer to prepare mutation
...
2024.10.06 16:31:24.077825 [ 620 ] {d6a3f295-498f-48e2-8af7-bbec46e03a7e} <Information> test_xa6pnknp.many_mutations (32de70b8-ea0a-4766-ac95-8ebc7923205e): Cannot OPTIMIZE table: Timeout (120000 ms) while waiting for already running merges before running OPTIMIZE with FINAL. Cannot select pa>
...
2024.10.06 16:31:33.473249 [ 1235 ] {32de70b8-ea0a-4766-ac95-8ebc7923205e::all_1_1_0_20001} <Trace> test_xa6pnknp.many_mutations (32de70b8-ea0a-4766-ac95-8ebc7923205e): Renaming temporary part tmp_mut_all_1_1_0_20001 to all_1_1_0_20001 with tid (1, 1, 00000000-0000-0000-0000-000000000000).
...
2024.10.06 16:31:34.944518 [ 1268 ] {} <Trace> test_xa6pnknp.many_mutations (32de70b8-ea0a-4766-ac95-8ebc7923205e): Removing mutation: mutation_2.txt
2024.10.06 16:31:34.945149 [ 1268 ] {} <Trace> test_xa6pnknp.many_mutations (32de70b8-ea0a-4766-ac95-8ebc7923205e): Removing mutation: mutation_3.txt
[1]: https://s3.amazonaws.com/clickhouse-test-reports/70358/eca9ec566a63a9046bb3f1c9373d671946a95ba4/stateless_tests__aarch64_.html
The problem is that after "start merges" all mutations will start, and
the OPTIMIZE may be blocked for too long due to too much mutations in
the queue.
Signed-off-by: Azat Khuzhin <a.khuzhin@semrush.com>
