back_log

Overview

The number of outstanding connection requests MariaDB can have. This comes into play when the main MariaDB thread gets very many connection requests in a very short 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

USAGE

DETAILS

SYNONYMS

SCHEMA

PARAMETERS

Command-line

--back_log=#

Configuration file

Supported

Dynamic

No

Scope

Global

Data Type

BIGINT UNSIGNED

Minimum Value

0

Maximum Value

65535

Product Default Value

150

SKYSQL

Cloud

SkySQL Topology

ES Ver

Service Default

AWS

Multi-Node Analytics

10.6

80

Single Node Analytics

10.6

80

Replicated Transactions

10.4

100

10.5

100

10.6

100

Single Node Transactions

10.4

100

10.5

100

10.6

100

GCP

Multi-Node Analytics

10.6

80

Single Node Analytics

10.6

80

Replicated Transactions

10.4

100

10.5

100

10.6

100

Single Node Transactions

10.4

100

10.5

100

10.6

100

Cloud

SkySQL Topology

ES Ver

Service Default

AWS

ColumnStore Data Warehouse

10.6

80

Enterprise Server With Replica(s)

10.4

100

10.5

100

10.6

100

Enterprise Server Single Node

10.4

100

10.5

100

10.6

100

GCP

ColumnStore Data Warehouse

10.6

80

Enterprise Server With Replica(s)

10.4

100

10.5

100

10.6

100

Enterprise Server Single Node

10.4

100

10.5

100

10.6

100

PRIVILEGES

EXAMPLES

ERROR HANDLING

FEATURE INTERACTION

RESPONSES

DIAGNOSIS

ISO 9075:2016

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