key_buffer_size

Overview

The size of the buffer used for index blocks for MyISAM tables. Increase this to get better index handling (for all reads and multiple writes) to as much as you can afford

DETAILS

PARAMETERS

Command-line

--key_buffer_size=#

Configuration file

Supported

Dynamic

Yes

Scope

Global

Data Type

BIGINT UNSIGNED

Minimum Value

0

Maximum Value

18446744073709551615

Default Value

134217728

SKYSQL

Cloud

SkySQL Topology

ES Ver

Default

AWS

Multi-Node Analytics

10.6

134217728

Single Node Analytics

10.6

134217728

Distributed Transactions

10.5

Not present

10.6

Not present

Replicated Transactions

10.4

20971520

10.5

20971520

10.6

20971520

Single Node Transactions

10.4

20971520

10.5

20971520

10.6

20971520

GCP

Multi-Node Analytics

10.6

134217728

Single Node Analytics

10.6

134217728

Distributed Transactions

10.5

Not present

10.6

Not present

Replicated Transactions

10.4

134217728

10.5

134217728

10.6

134217728

Single Node Transactions

10.4

134217728

10.5

134217728

10.6

134217728

Cloud

SkySQL Topology

ES Ver

Default

AWS

ColumnStore Data Warehouse

10.6

134217728

Xpand Distributed SQL

10.5

Not present

10.6

Not present

Enterprise Server With Replica(s)

10.4

20971520

10.5

20971520

10.6

20971520

Enterprise Server Single Node

10.4

20971520

10.5

20971520

10.6

20971520

GCP

ColumnStore Data Warehouse

10.6

134217728

Xpand Distributed SQL

10.5

Not present

10.6

Not present

Enterprise Server With Replica(s)

10.4

134217728

10.5

134217728

10.6

134217728

Enterprise Server Single Node

10.4

134217728

10.5

134217728

10.6

134217728

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