innodb_undo_logs

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:: Number of undo logs to use.

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_undo_logs[=#]
Configuration file	Supported
Dynamic	Yes
Scope	Global
Data Type	BIGINT UNSIGNED
Minimum Value	0
Maximum Value	128
Default Value	128

SKYSQL

Cloud	SkySQL Topology	ES Ver	Default
AWS	HA (Primary/Replica)	10.4	128
AWS	HA (Primary/Replica)	10.5	128
AWS	Transactional Standalone	10.4	128
AWS	Transactional Standalone	10.5	128
AWS	Distributed Transactions	10.5	Not present
GCP	ColumnStore	10.5	128
GCP	ColumnStore Multi	10.5	128
GCP	Galera	10.4	128
GCP	Galera	10.5	128
GCP	HA (Primary/Replica)	10.4	128
GCP	HA (Primary/Replica)	10.5	128
GCP	HTAP	10.5	128
GCP	Transactional Standalone	10.4	128
GCP	Transactional Standalone	10.5	128
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	Minimum value changed in MariaDB Enterprise Server 10.5.3-1 from 1 to 0
10.5 Community	Minimum value changed in MariaDB Community Server 10.5.0 from 1 to 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_undo_logs page in the SkySQL Documentation.