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thread_cache_size

This page is part of MariaDB's MariaDB Documentation.

The parent of this page is: System Variables for MariaDB Enterprise Server

Topics on this page:

Overview
DETAILS
- PARAMETERS
- SKYSQL
CHANGE HISTORY
EXTERNAL REFERENCES

Overview

How many threads we should keep in a cache for reuse. These are freed after 5 minutes of idle time

See also: System Variables for MariaDB Enterprise Server 10.6, in 10.5 ES, in 10.4 ES, in 10.3 ES, in 10.2 ES, in 10.6 CS, in 10.5 CS, in 10.4 CS, in 10.3 CS, and in 10.2 CS

See also: System Variables for MariaDB Enterprise Server 10.6, in 10.5 ES, and in 10.4 ES

DETAILS

PARAMETERS

Command-line	--thread_cache_size=#
Configuration file	Supported
Dynamic	Yes
Scope	Global
Data Type	BIGINT UNSIGNED
Minimum Value	0
Maximum Value	16384
Product Default Value	256

SKYSQL

Cloud	SkySQL Topology	ES Ver	Service Default
AWS	Multi-Node Analytics	10.6	151 (choices: 0, 128, 256, 512, 1024, 2048, 4096)
	Single Node Analytics	10.6	151 (choices: 0, 128, 256, 512, 1024, 2048, 4096)
	Replicated Transactions	10.4	256 (choices: 0, 128, 256, 512, 1024, 2048, 4096)
		10.5	256 (choices: 0, 128, 256, 512, 1024, 2048, 4096)
		10.6	256 (choices: 0, 128, 256, 512, 1024, 2048, 4096)
	Single Node Transactions	10.4	256 (choices: 0, 128, 256, 512, 1024, 2048, 4096)
		10.5	256 (choices: 0, 128, 256, 512, 1024, 2048, 4096)
		10.6	256 (choices: 0, 128, 256, 512, 1024, 2048, 4096)
GCP	Multi-Node Analytics	10.6	151 (choices: 0, 128, 256, 512, 1024, 2048, 4096)
	Single Node Analytics	10.6	151 (choices: 0, 128, 256, 512, 1024, 2048, 4096)
	Replicated Transactions	10.4	256 (choices: 0, 128, 256, 512, 1024, 2048, 4096)
		10.5	256 (choices: 0, 128, 256, 512, 1024, 2048, 4096)
		10.6	256 (choices: 0, 128, 256, 512, 1024, 2048, 4096)
	Single Node Transactions	10.4	256 (choices: 0, 128, 256, 512, 1024, 2048, 4096)
		10.5	256 (choices: 0, 128, 256, 512, 1024, 2048, 4096)
		10.6	256 (choices: 0, 128, 256, 512, 1024, 2048, 4096)

Cloud	SkySQL Topology	ES Ver	Service Default
AWS	ColumnStore Data Warehouse	10.6	151 (choices: 0, 128, 256, 512, 1024, 2048, 4096)
	Enterprise Server With Replica(s)	10.4	256 (choices: 0, 128, 256, 512, 1024, 2048, 4096)
		10.5	256 (choices: 0, 128, 256, 512, 1024, 2048, 4096)
		10.6	256 (choices: 0, 128, 256, 512, 1024, 2048, 4096)
	Enterprise Server Single Node	10.4	256 (choices: 0, 128, 256, 512, 1024, 2048, 4096)
		10.5	256 (choices: 0, 128, 256, 512, 1024, 2048, 4096)
		10.6	256 (choices: 0, 128, 256, 512, 1024, 2048, 4096)
GCP	ColumnStore Data Warehouse	10.6	151 (choices: 0, 128, 256, 512, 1024, 2048, 4096)
	Enterprise Server With Replica(s)	10.4	256 (choices: 0, 128, 256, 512, 1024, 2048, 4096)
		10.5	256 (choices: 0, 128, 256, 512, 1024, 2048, 4096)
		10.6	256 (choices: 0, 128, 256, 512, 1024, 2048, 4096)
	Enterprise Server Single Node	10.4	256 (choices: 0, 128, 256, 512, 1024, 2048, 4096)
		10.5	256 (choices: 0, 128, 256, 512, 1024, 2048, 4096)
		10.6	256 (choices: 0, 128, 256, 512, 1024, 2048, 4096)

See SkySQL details in MariaDB SkySQL previous release
See SkySQL details in MariaDB SkySQL new release

CHANGE HISTORY

Release Series	History
10.6 Enterprise	Present starting in MariaDB Enterprise Server 10.6.4-1.
10.6 Community	Present starting in MariaDB Community Server 10.6.0.
10.5 Enterprise	Present starting in MariaDB Enterprise Server 10.5.3-1.
10.5 Community	Present starting in MariaDB Community Server 10.5.0.
10.4 Enterprise	Present starting in MariaDB Enterprise Server 10.4.6-1.
10.4 Community	Present starting in MariaDB Community Server 10.4.0.
10.3 Enterprise	Present starting in MariaDB Enterprise Server 10.3.16-1.
10.3 Community	Present starting in MariaDB Community Server 10.3.0.
10.2 Enterprise	Present starting in MariaDB Enterprise Server 10.2.25-1.
10.2 Community	Present starting in MariaDB Community Server 10.2.0.

Release Series	History
10.6 Enterprise	Present starting in MariaDB Enterprise Server 10.6.4-1.
10.5 Enterprise	Present starting in MariaDB Enterprise Server 10.5.3-1.
10.4 Enterprise	Present starting in MariaDB Enterprise Server 10.4.6-1.

EXTERNAL REFERENCES

Additional information on this topic may be found in the MariaDB Public Knowledge Base.