performance_schema_max_rwlock_classes

Maximum number of rwlock instruments.

See also: System Variables for MariaDB Enterprise Server 10.6, in 10.5 ES, and in 10.4 ES

This page is part of MariaDB's SkySQL 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

Dynamic	No
Scope	Global
Data Type	BIGINT UNSIGNED
Minimum Value	0
Maximum Value	256
Default Value	50

SKYSQL

Cloud	SkySQL Topology	ES Ver	Default
AWS	HA (Primary/Replica)	10.4	40 (choices: 0, 50, 90, 150, 200, 250)
AWS	HA (Primary/Replica)	10.5	50 (choices: 0, 50, 90, 150, 200, 250)
AWS	Transactional Standalone	10.4	40 (choices: 0, 50, 90, 150, 200, 250)
AWS	Transactional Standalone	10.5	50 (choices: 0, 50, 90, 150, 200, 250)
AWS	Distributed Transactions	10.5	Not present (choices: 0, 50, 90, 150, 200, 250)
GCP	ColumnStore	10.5	50 (choices: 0, 50, 90, 150, 200, 250)
GCP	ColumnStore Multi	10.5	50 (choices: 0, 50, 90, 150, 200, 250)
GCP	Galera	10.4	40 (choices: 0, 50, 90, 150, 200, 250)
GCP	Galera	10.5	50 (choices: 0, 50, 90, 150, 200, 250)
GCP	HA (Primary/Replica)	10.4	40 (choices: 0, 50, 90, 150, 200, 250)
GCP	HA (Primary/Replica)	10.5	50 (choices: 0, 50, 90, 150, 200, 250)
GCP	HTAP	10.5	50 (choices: 0, 50, 90, 150, 200, 250)
GCP	Transactional Standalone	10.4	40 (choices: 0, 50, 90, 150, 200, 250)
GCP	Transactional Standalone	10.5	50 (choices: 0, 50, 90, 150, 200, 250)
GCP	Distributed Transactions	10.5	Not present (choices: 0, 50, 90, 150, 200, 250)

CHANGE HISTORY

Release Series	History
10.6 Enterprise	Present starting in MariaDB Enterprise Server 10.6.4-1.
10.5 Enterprise	Default value changed in MariaDB Enterprise Server 10.5.3-1 from 40 to 50
10.4 Enterprise	Present starting in MariaDB Enterprise Server 10.4.6-1.

EXTERNAL REFERENCES

Additional information on this topic may be found in the MariaDB Public Knowledge Base.

This page shows information specific to MariaDB SkySQL. Information for non-SkySQL use can be found on the performance_schema_max_rwlock_classes page in the MariaDB Enterprise Documentation.