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fef5f146e7
fsync of the temporary part directory is superfluous anyway, and besides
that directory is not exists at that time, that will lead to ENOENT
error:
2022.02.18 17:02:51.634565 [ 35639 ] {} <Error> void DB::MergeTreeBackgroundExecutor<DB::MergeMutateRuntimeQueue>::routine(DB::TaskRuntimeDataPtr) [Queue = DB::MergeMutateRuntimeQueue]: Code: 107. DB::ErrnoException: Cannot open file /var/lib/clickhouse/data/system/text_log/tmp_merge_202202_1864_3192_14/, errno: 2, strerror: No such file or directory. (FILE_DOESNT_EXIST), Stack trace (when copying this message, always include the lines below):
0. DB::Exception::Exception() @ 0xb26ecfa in /usr/lib/debug/.build-id/01/8c328bd4858d67.debug
1. DB::throwFromErrnoWithPath() @ 0xb2700ea in /usr/lib/debug/.build-id/01/8c328bd4858d67.debug
2. DB::LocalDirectorySyncGuard::LocalDirectorySyncGuard() @ 0x14905531 in /usr/lib/debug/.build-id/01/8c328bd4858d67.debug
3. DB::DiskLocal::getDirectorySyncGuard() const @ 0x148af3e3 in /usr/lib/debug/.build-id/01/8c328bd4858d67.debug
4. DB::MergeTask::ExecuteAndFinalizeHorizontalPart::prepare() @ 0x157bef13 in /usr/lib/debug/.build-id/01/8c328bd4858d67.debug
Note, that IMergeTreeDataPart::renameTo() anyway will have fsync for the
directory.
Signed-off-by: Azat Khuzhin <a.khuzhin@semrush.com>
53 lines
2.3 KiB
SQL
53 lines
2.3 KiB
SQL
drop table if exists data_01643;
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select 'default';
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create table data_01643 (key Int) engine=MergeTree() order by key;
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insert into data_01643 values (1);
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select * from data_01643;
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optimize table data_01643 final;
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drop table data_01643;
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select 'compact fsync_after_insert';
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create table data_01643 (key Int) engine=MergeTree() order by key settings min_rows_for_wide_part=2, fsync_after_insert=1;
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insert into data_01643 values (1);
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select * from data_01643;
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optimize table data_01643 final;
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drop table data_01643;
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select 'compact fsync_after_insert,fsync_part_directory';
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create table data_01643 (key Int) engine=MergeTree() order by key settings min_rows_for_wide_part=2, fsync_after_insert=1, fsync_part_directory=1;
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insert into data_01643 values (1);
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select * from data_01643;
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optimize table data_01643 final;
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drop table data_01643;
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select 'wide fsync_after_insert';
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create table data_01643 (key Int) engine=MergeTree() order by key settings min_bytes_for_wide_part=0, fsync_after_insert=1;
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insert into data_01643 values (1);
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select * from data_01643;
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optimize table data_01643 final;
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drop table data_01643;
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select 'wide fsync_after_insert,fsync_part_directory';
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create table data_01643 (key Int) engine=MergeTree() order by key settings min_bytes_for_wide_part=0, fsync_after_insert=1, fsync_part_directory=1;
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insert into data_01643 values (1);
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select * from data_01643;
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optimize table data_01643 final;
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drop table data_01643;
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select 'memory in_memory_parts_insert_sync';
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create table data_01643 (key Int) engine=MergeTree() order by key settings min_rows_for_compact_part=2, in_memory_parts_insert_sync=1, fsync_after_insert=1, fsync_part_directory=1;
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insert into data_01643 values (1);
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select * from data_01643;
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optimize table data_01643 final;
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drop table data_01643;
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select 'wide fsync_part_directory,vertical';
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create table data_01643 (key Int) engine=MergeTree() order by key settings min_bytes_for_wide_part=0, fsync_part_directory=1, enable_vertical_merge_algorithm=1, vertical_merge_algorithm_min_rows_to_activate=0, vertical_merge_algorithm_min_columns_to_activate=0;
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insert into data_01643 values (1);
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insert into data_01643 values (2);
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select * from data_01643 order by key;
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-- vertical merge does not supports deduplicate, hence no FINAL
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optimize table data_01643;
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drop table data_01643;
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