thevar1able/ClickHouse
1
0
Fork 0
mirror of https://github.com/ClickHouse/ClickHouse.git synced 2024-11-21 23:21:59 +00:00
Code Issues Packages Projects Releases Wiki Activity

Better

Browse Source
This commit is contained in:
alesapin 2020-09-01 14:23:38 +03:00
parent f0dc5a3085
commit c37a19f7b0
4 changed files with 12 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
src/Storages/MergeTree/MergeTreeDataMergerMutator.cpp
View File

@ -1126,8 +1126,6 @@ MergeTreeData::MutableDataPartPtr MergeTreeDataMergerMutator::mutatePartToTempor
}
else /// TODO: check that we modify only non-key columns in this case.
{
std::cerr << "MUTATING SOME PART COLUMNS\n";
/// We will modify only some of the columns. Other columns and key values can be copied as-is.
auto indices_to_recalc = getIndicesToRecalculate(in, updated_header.getNamesAndTypesList(), metadata_snapshot, context);
@ -1138,11 +1136,6 @@ MergeTreeData::MutableDataPartPtr MergeTreeDataMergerMutator::mutatePartToTempor
{
files_to_skip.insert("ttl.txt");
}
for (const auto & name : files_to_skip)
{
std::cerr << "SKIPPING " << name << std::endl;
}
/// Create hardlinks for unchanged files
for (auto it = disk->iterateDirectory(source_part->getFullRelativePath()); it->isValid(); it->next())
{
@ -1174,8 +1167,6 @@ MergeTreeData::MutableDataPartPtr MergeTreeDataMergerMutator::mutatePartToTempor
if (in)
{
std::cerr << "HEADER:" << updated_header.dumpStructure() << std::endl;
std::cerr << "IN HEADER:" << in->getHeader().dumpStructure() << std::endl;
mutateSomePartColumns(
source_part,
metadata_snapshot,

2
src/Storages/MergeTree/MergeTreeSettings.h
View File

@ -33,8 +33,10 @@ struct Settings;
M(UInt64, max_bytes_to_merge_at_min_space_in_pool, 1024 * 1024, "Maximum in total size of parts to merge, when there are minimum free threads in background pool (or entries in replication queue).", 0) \
M(UInt64, max_replicated_merges_in_queue, 16, "How many tasks of merging and mutating parts are allowed simultaneously in ReplicatedMergeTree queue.", 0) \
M(UInt64, max_replicated_mutations_in_queue, 8, "How many tasks of mutating parts are allowed simultaneously in ReplicatedMergeTree queue.", 0) \
M(UInt64, max_replicated_recompressions_in_queue, 1, "How many tasks of recompressiong parts are allowed simultaneously in ReplicatedMergeTree queue.", 0) \
M(UInt64, number_of_free_entries_in_pool_to_lower_max_size_of_merge, 8, "When there is less than specified number of free entries in pool (or replicated queue), start to lower maximum size of merge to process (or to put in queue). This is to allow small merges to process - not filling the pool with long running merges.", 0) \
M(UInt64, number_of_free_entries_in_pool_to_execute_mutation, 10, "When there is less than specified number of free entries in pool, do not execute part mutations. This is to leave free threads for regular merges and avoid \"Too many parts\"", 0) \
M(UInt64, number_of_free_entries_in_pool_to_execute_ttl_recompression, 10, "When there is less than specified number of free entries in pool, do not execute part recompression according to TTL. This is to leave free threads for regular merges and avoid \"Too many parts\"", 0) \
M(Seconds, old_parts_lifetime, 8 * 60, "How many seconds to keep obsolete parts.", 0) \
M(Seconds, temporary_directories_lifetime, 86400, "How many seconds to keep tmp_-directories.", 0) \
M(Seconds, lock_acquire_timeout_for_background_operations, DBMS_DEFAULT_LOCK_ACQUIRE_TIMEOUT_SEC, "For background operations like merges, mutations etc. How many seconds before failing to acquire table locks.", 0) \

2
tests/queries/0_stateless/01465_ttl_recompression.reference
View File

@ -1,7 +1,9 @@
CREATE TABLE default.recompression_table\n(\n `dt` DateTime,\n `key` UInt64,\n `value` String\n)\nENGINE = MergeTree()\nPARTITION BY key\nORDER BY tuple()\nTTL dt + toIntervalMonth(1) RECOMPRESS CODEC(ZSTD(17)), dt + toIntervalYear(1) RECOMPRESS CODEC(LZ4HC(10))\nSETTINGS index_granularity = 8192
3000
1_1_1_0 LZ4
2_2_2_0 ZSTD(17)
3_3_3_0 LZ4HC(10)
CREATE TABLE default.recompression_table\n(\n `dt` DateTime,\n `key` UInt64,\n `value` String\n)\nENGINE = MergeTree()\nPARTITION BY key\nORDER BY tuple()\nTTL dt + toIntervalMonth(1) RECOMPRESS CODEC(ZSTD(12))\nSETTINGS index_granularity = 8192
1_1_1_0_4 LZ4
2_2_2_0_4 ZSTD(17)
3_3_3_0_4 LZ4HC(10)

8
tests/queries/0_stateless/01465_ttl_recompression.sql
View File

@ -11,6 +11,10 @@ ORDER BY tuple()
PARTITION BY key
TTL dt + INTERVAL 1 MONTH RECOMPRESS CODEC(ZSTD(17)), dt + INTERVAL 1 YEAR RECOMPRESS CODEC(LZ4HC(10));
SHOW CREATE TABLE recompression_table;
SYSTEM STOP TTL MERGES recompression_table;
INSERT INTO recompression_table SELECT now(), 1, toString(number) from numbers(1000);
INSERT INTO recompression_table SELECT now() - INTERVAL 2 MONTH, 2, toString(number) from numbers(1000, 1000);
@ -23,8 +27,12 @@ SELECT name, default_compression_codec FROM system.parts WHERE table = 'recompre
ALTER TABLE recompression_table MODIFY TTL dt + INTERVAL 1 MONTH RECOMPRESS CODEC(ZSTD(12)) SETTINGS mutations_sync = 2;
SHOW CREATE TABLE recompression_table;
SELECT name, default_compression_codec FROM system.parts WHERE table = 'recompression_table' and active = 1 and database = currentDatabase() ORDER BY name;
SYSTEM START TTL MERGES recompression_table;
OPTIMIZE TABLE recompression_table FINAL;
SELECT name, default_compression_codec FROM system.parts WHERE table = 'recompression_table' and active = 1 and database = currentDatabase() ORDER BY name;