From 322a5e515300cef09ba52bef4f730e84dc8c1295 Mon Sep 17 00:00:00 2001 From: Olga Revyakina Date: Sat, 16 Jan 2021 23:00:00 +0300 Subject: [PATCH 1/3] First draft --- docs/en/operations/caches.md | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 docs/en/operations/caches.md diff --git a/docs/en/operations/caches.md b/docs/en/operations/caches.md new file mode 100644 index 00000000000..0107c340019 --- /dev/null +++ b/docs/en/operations/caches.md @@ -0,0 +1,24 @@ +--- +toc_priority: 65 +toc_title: Caches +--- + +# Cache Types {#cache-types} + +When performing queries, ClichHouse uses different caches. + +Main cache types: +- `mark_cache` — Cache of marks used by table engines of the [MergeTree](../engines/table-engines/mergetree-family/mergetree.md) family. +- `uncompressed_cache` — Cache of uncompressed data used by table engines of the [MergeTree](../engines/table-engines/mergetree-family/mergetree.md) family. + +Additional cache types: +- DNS cache +- [regexp](../interfaces/formats.md#data-format-regexp) cache +- compiled expressions cache +- [Avro format](../interfaces/formats.md#data-format-avro) schemas cache +- [dictionaries data cache](../sql-reference/dictionaries/index.md) + +Not directly used: +- page cache OS + +[Original article](https://clickhouse.tech/docs/en/operations/caches/) From 2edf69fe6459657a0b1783b3236d1ce7445db308 Mon Sep 17 00:00:00 2001 From: Olga Revyakina Date: Thu, 21 Jan 2021 09:17:12 +0300 Subject: [PATCH 2/3] Fix --- docs/en/operations/caches.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/docs/en/operations/caches.md b/docs/en/operations/caches.md index 0107c340019..0323fc84ef4 100644 --- a/docs/en/operations/caches.md +++ b/docs/en/operations/caches.md @@ -19,6 +19,6 @@ Additional cache types: - [dictionaries data cache](../sql-reference/dictionaries/index.md) Not directly used: -- page cache OS +- OS page cache [Original article](https://clickhouse.tech/docs/en/operations/caches/) From cf5c0dad94eff60d0ddec72abcf63c3c4b983250 Mon Sep 17 00:00:00 2001 From: Olga Revyakina Date: Thu, 21 Jan 2021 23:56:29 +0300 Subject: [PATCH 3/3] Minor fix --- docs/en/operations/caches.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/docs/en/operations/caches.md b/docs/en/operations/caches.md index 0323fc84ef4..66f2eaeadc9 100644 --- a/docs/en/operations/caches.md +++ b/docs/en/operations/caches.md @@ -18,7 +18,7 @@ Additional cache types: - [Avro format](../interfaces/formats.md#data-format-avro) schemas cache - [dictionaries data cache](../sql-reference/dictionaries/index.md) -Not directly used: +Indirectly used: - OS page cache [Original article](https://clickhouse.tech/docs/en/operations/caches/)