innodb_thread_concurrency

In 10.6 ES, 10.6 CS:: Not present
In 10.5 ES, 10.5 CS:: Deprecated parameter with no effect.
In 10.4 ES, 10.4 CS, 10.3 ES, 10.3 CS, 10.2 ES, 10.2 CS:: Helps in performance tuning in heavily concurrent environments. Sets the maximum number of threads allowed inside InnoDB. Value 0 will disable the thread throttling.

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

This page is part of MariaDB's Enterprise Documentation.

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

Topics on this page:

DETAILS
- PARAMETERS
- SKYSQL
CHANGE HISTORY
EXTERNAL REFERENCES

DETAILS

PARAMETERS

Command-line	--innodb_thread_concurrency=#
Configuration file	Supported
Dynamic	Yes
Scope	Global
Data Type	INT UNSIGNED
Minimum Value	0
Maximum Value	1000
Default Value	0

SKYSQL

Cloud	SkySQL Topology	ES Ver	Default
AWS	HA (Primary/Replica)	10.4	0
AWS	HA (Primary/Replica)	10.5	0
AWS	Transactional Standalone	10.4	0
AWS	Transactional Standalone	10.5	0
AWS	Distributed Transactions	10.5	Not present
GCP	ColumnStore	10.5	0
GCP	ColumnStore Multi	10.5	0
GCP	Galera	10.4	0
GCP	Galera	10.5	0
GCP	HA (Primary/Replica)	10.4	0
GCP	HA (Primary/Replica)	10.5	0
GCP	HTAP	10.5	0
GCP	Transactional Standalone	10.4	0
GCP	Transactional Standalone	10.5	0
GCP	Distributed Transactions	10.5	Not present

See MariaDB SkySQL documentation to learn more about the MariaDB SkySQL database as a service.

CHANGE HISTORY

Release Series	History
10.6 Enterprise	Removed in MariaDB Enterprise Server 10.6.4-1.
10.6 Community	Not present.
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.

EXTERNAL REFERENCES

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

Information specific to MariaDB SkySQL can be found on the innodb_thread_concurrency page in the SkySQL Documentation.