key_cache_age_threshold

This characterizes the number of hits a hot block has to be untouched until it is considered aged enough to be downgraded to a warm block. This specifies the percentage ratio of that number of hits to the total number of blocks in key cache

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

DETAILS

PARAMETERS

Command-line

--key_cache_age_threshold=#

Configuration file

Supported

Dynamic

Yes

Scope

Global

Data Type

BIGINT UNSIGNED

Minimum Value

100

Maximum Value

4294967295

Default Value

300

SKYSQL

Cloud

SkySQL Topology

ES Ver

Default

AWS

HA (Primary/Replica)

10.4

300

AWS

HA (Primary/Replica)

10.5

300

AWS

Transactional Standalone

10.4

300

AWS

Transactional Standalone

10.5

300

AWS

Distributed Transactions

10.5

Not present

GCP

ColumnStore

10.5

300

GCP

ColumnStore Multi

10.5

300

GCP

Galera

10.4

300

GCP

Galera

10.5

300

GCP

HA (Primary/Replica)

10.4

300

GCP

HA (Primary/Replica)

10.5

300

GCP

HTAP

10.5

300

GCP

Transactional Standalone

10.4

300

GCP

Transactional Standalone

10.5

300

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

  • 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.

EXTERNAL REFERENCES