Fix 01035_lc_empty_part_bug under stress tests

Found in [1]:

    2021.03.12 23:32:58.897190 [ 436606 ] {97a08a8f-4630-44f8-ba18-a94c6fabbded} <Information> test_13.lc_empty_part_bug: Waiting mutation: mutation_3.txt
    ...
    2021.03.12 23:32:58.900444 [ 374 ] {} <Debug> test_13.lc_empty_part_bug: Current max source part size for mutation is 0 but part size 1. Will not mutate part all_1_1_0_2. Max size depends not only on available space, but also on settings 'number_of_free_entries_in_pool_to_execute_mutation' and 'background_pool_size'
    ...

Hang check:

    query:                alter table lc_empty_part_bug modify column s LowCardinality(String);
    elapsed:              2156.396613506

  [1]: https://clickhouse-test-reports.s3.yandex.net/21511/d7d9638ceb6bd702f34a88ee54f8f83197e90af5/stress_test_(address).html#fail1
This commit is contained in:
Azat Khuzhin 2021-03-13 10:31:19 +03:00
parent b2a6a8feb8
commit 1ce9293e97

View File

@ -8,7 +8,7 @@ CURDIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
${CLICKHOUSE_CLIENT} --multiquery --query="
DROP TABLE IF EXISTS lc_empty_part_bug;
create table lc_empty_part_bug (id UInt64, s String) Engine=MergeTree ORDER BY id;
create table lc_empty_part_bug (id UInt64, s String) Engine=MergeTree ORDER BY id SETTINGS number_of_free_entries_in_pool_to_execute_mutation=0;
insert into lc_empty_part_bug select number as id, toString(rand()) from numbers(100);
alter table lc_empty_part_bug delete where id < 100;
" --mutations_sync=1