read_buffer_size

Overview

Each thread that does a sequential scan allocates a buffer of this size for each table it scans. If you do many sequential scans, you may want to increase this value

DETAILS

PARAMETERS

Command-line

--read_buffer_size=#

Configuration file

Supported

Dynamic

Yes

Scope

Global, Session

Data Type

BIGINT UNSIGNED

Minimum Value

8192

Maximum Value

2147483647

Default Value

131072

SKYSQL

Cloud

SkySQL Topology

ES Ver

Default

AWS

Multi-Node Analytics

10.6

131072

Single Node Analytics

10.6

131072

Distributed Transactions

10.5

Not present

10.6

Not present

Replicated Transactions

10.4

131072

10.5

131072

10.6

131072

Single Node Transactions

10.4

131072

10.5

131072

10.6

131072

GCP

Multi-Node Analytics

10.6

131072

Single Node Analytics

10.6

131072

Distributed Transactions

10.5

Not present

10.6

Not present

Replicated Transactions

10.4

131072

10.5

131072

10.6

131072

Single Node Transactions

10.4

131072

10.5

131072

10.6

131072

Cloud

SkySQL Topology

ES Ver

Default

AWS

ColumnStore Data Warehouse

10.6

131072

Xpand Distributed SQL

10.5

Not present

10.6

Not present

Enterprise Server With Replica(s)

10.4

131072

10.5

131072

10.6

131072

Enterprise Server Single Node

10.4

131072

10.5

131072

10.6

131072

GCP

ColumnStore Data Warehouse

10.6

131072

Xpand Distributed SQL

10.5

Not present

10.6

Not present

Enterprise Server With Replica(s)

10.4

131072

10.5

131072

10.6

131072

Enterprise Server Single Node

10.4

131072

10.5

131072

10.6

131072

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