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comment out more default settings

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This commit is contained in:
Denny Crane 2024-06-23 16:51:36 -03:00
parent a902d37615
commit a6a3991f39
3 changed files with 32 additions and 22 deletions
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34
programs/server/config.xml
View File

@ -408,13 +408,11 @@
<!-- Approximate size of mark cache, used in tables of MergeTree family.
In bytes. Cache is single for server. Memory is allocated only on demand.
You should not lower this value.
<mark_cache_size>5368709120</mark_cache_size>
-->
You should not lower this value. -->
<!-- <mark_cache_size>5368709120</mark_cache_size> -->
<!-- For marks of secondary indices.
<index_mark_cache_size>5368709120</index_mark_cache_size>
-->
<!-- For marks of secondary indices. -->
<!-- <index_mark_cache_size>5368709120</index_mark_cache_size> -->
<!-- If you enable the `min_bytes_to_use_mmap_io` setting,
the data in MergeTree tables can be read with mmap to avoid copying from kernel to userspace.
@ -432,13 +430,23 @@
The cache is dropped (the files are closed) automatically on removal of old parts in MergeTree,
also it can be dropped manually by the SYSTEM DROP MMAP CACHE query.
-->
<mmap_cache_size>1000</mmap_cache_size>
<!-- <mmap_cache_size>1024</mmap_cache_size> -->
<!-- Cache size in bytes for compiled expressions.-->
<compiled_expression_cache_size>134217728</compiled_expression_cache_size>
<!-- <compiled_expression_cache_size>134217728</compiled_expression_cache_size> -->
<!-- Cache size in elements for compiled expressions.-->
<compiled_expression_cache_elements_size>10000</compiled_expression_cache_elements_size>
<!-- <compiled_expression_cache_elements_size>10000</compiled_expression_cache_elements_size> -->
<!-- Configuration for the query cache -->
<!--
<query_cache>
<max_size_in_bytes>1073741824</max_size_in_bytes>
<max_entries>1024</max_entries>
<max_entry_size_in_bytes>1048576</max_entry_size_in_bytes>
<max_entry_size_in_rows>30000000</max_entry_size_in_rows>
</query_cache>
-->
<!-- Cache path for custom (created from SQL) cached disks -->
<custom_cached_disks_base_directory>/var/lib/clickhouse/caches/</custom_cached_disks_base_directory>
@ -1642,14 +1650,6 @@
-->
<!-- </kafka> -->
<!-- Configuration for the query cache -->
<query_cache>
<max_size_in_bytes>1073741824</max_size_in_bytes>
<max_entries>1024</max_entries>
<max_entry_size_in_bytes>1048576</max_entry_size_in_bytes>
<max_entry_size_in_rows>30000000</max_entry_size_in_rows>
</query_cache>
<backups>
<allowed_path>backups</allowed_path>

16
programs/server/config.yaml.example
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@ -262,6 +262,9 @@ uncompressed_cache_size: 8589934592
# You should not lower this value.
# mark_cache_size: 5368709120
# For marks of secondary indices.
# index_mark_cache_size: 5368709120
# If you enable the `min_bytes_to_use_mmap_io` setting,
# the data in MergeTree tables can be read with mmap to avoid copying from kernel to userspace.
# It makes sense only for large files and helps only if data reside in page cache.
@ -277,13 +280,20 @@ uncompressed_cache_size: 8589934592
# in query or server memory usage - because this memory can be discarded similar to OS page cache.
# The cache is dropped (the files are closed) automatically on removal of old parts in MergeTree,
# also it can be dropped manually by the SYSTEM DROP MMAP CACHE query.
mmap_cache_size: 1000
# mmap_cache_size: 1024
# Cache size in bytes for compiled expressions.
compiled_expression_cache_size: 134217728
# compiled_expression_cache_size: 134217728
# Cache size in elements for compiled expressions.
compiled_expression_cache_elements_size: 10000
# compiled_expression_cache_elements_size: 10000
# Configuration for the query cache
# query_cache:
# max_size_in_bytes: 1073741824
# max_entries: 1024
# max_entry_size_in_bytes: 1048576
# max_entry_size_in_rows: 30000000
# Path to data directory, with trailing slash.
path: /var/lib/clickhouse/

4
src/Core/Defines.h
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@ -90,13 +90,13 @@ static constexpr auto DEFAULT_UNCOMPRESSED_CACHE_POLICY = "SLRU";
static constexpr auto DEFAULT_UNCOMPRESSED_CACHE_MAX_SIZE = 0_MiB;
static constexpr auto DEFAULT_UNCOMPRESSED_CACHE_SIZE_RATIO = 0.5l;
static constexpr auto DEFAULT_MARK_CACHE_POLICY = "SLRU";
static constexpr auto DEFAULT_MARK_CACHE_MAX_SIZE = 5120_MiB;
static constexpr auto DEFAULT_MARK_CACHE_MAX_SIZE = 5_GiB;
static constexpr auto DEFAULT_MARK_CACHE_SIZE_RATIO = 0.5l;
static constexpr auto DEFAULT_INDEX_UNCOMPRESSED_CACHE_POLICY = "SLRU";
static constexpr auto DEFAULT_INDEX_UNCOMPRESSED_CACHE_MAX_SIZE = 0;
static constexpr auto DEFAULT_INDEX_UNCOMPRESSED_CACHE_SIZE_RATIO = 0.5;
static constexpr auto DEFAULT_INDEX_MARK_CACHE_POLICY = "SLRU";
static constexpr auto DEFAULT_INDEX_MARK_CACHE_MAX_SIZE = 5120_MiB;
static constexpr auto DEFAULT_INDEX_MARK_CACHE_MAX_SIZE = 5_GiB;
static constexpr auto DEFAULT_INDEX_MARK_CACHE_SIZE_RATIO = 0.3;
static constexpr auto DEFAULT_MMAP_CACHE_MAX_SIZE = 1_KiB; /// chosen by rolling dice
static constexpr auto DEFAULT_COMPILED_EXPRESSION_CACHE_MAX_SIZE = 128_MiB;