wsrep_reject_queries

Reject queries from client connections.

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

DETAILS

Cluster Nodes can accept or reject queries from client connections. When the Node is configured to reject queries, it continues to replicate write-sets from the cluster and clients can still connect to the Node, but if the client attempts to execute a query, the query it returns an error.

This system variable allows you to specify whether and how the node rejects client queries:

Option

Description

NONE

Cluster Node accepts client queries.

ALL

Cluster Node rejects client queries.

ALL_KILL

Cluster Node rejects client queries and kills existing client connections, including the current connection, without waiting for any currently running queries to complete.

PARAMETERS

Command-line

--wsrep_reject_queries[={NONE|ALL|ALL_KILL}]

Configuration file

Supported

Dynamic

Yes

Scope

Global

Data Type

ENUM (NONE, ALL, ALL_KILL)

Default Value

NONE

SKYSQL

Cloud

SkySQL Topology

ES Ver

Default

AWS

HA (Primary/Replica)

10.4

NONE (choices: NONE, ALL, ALL_KILL)

AWS

HA (Primary/Replica)

10.5

NONE (choices: NONE, ALL, ALL_KILL)

AWS

Transactional Standalone

10.4

NONE (choices: NONE, ALL, ALL_KILL)

AWS

Transactional Standalone

10.5

NONE (choices: NONE, ALL, ALL_KILL)

AWS

Distributed Transactions

10.5

Not present (choices: NONE, ALL, ALL_KILL)

GCP

ColumnStore

10.5

NONE (choices: NONE, ALL, ALL_KILL)

GCP

ColumnStore Multi

10.5

NONE (choices: NONE, ALL, ALL_KILL)

GCP

Galera

10.4

NONE (choices: NONE, ALL, ALL_KILL)

GCP

Galera

10.5

NONE (choices: NONE, ALL, ALL_KILL)

GCP

HA (Primary/Replica)

10.4

NONE (choices: NONE, ALL, ALL_KILL)

GCP

HA (Primary/Replica)

10.5

NONE (choices: NONE, ALL, ALL_KILL)

GCP

HTAP

10.5

NONE (choices: NONE, ALL, ALL_KILL)

GCP

Transactional Standalone

10.4

NONE (choices: NONE, ALL, ALL_KILL)

GCP

Transactional Standalone

10.5

NONE (choices: NONE, ALL, ALL_KILL)

GCP

Distributed Transactions

10.5

Not present (choices: NONE, ALL, ALL_KILL)

See MariaDB SkySQL documentation to learn more about the MariaDB SkySQL database as a service.

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

  • Added in MariaDB Community Server 10.3.6.

10.2 Enterprise

  • Present starting in MariaDB Enterprise Server 10.2.25-1.

10.2 Community

  • Added in MariaDB Community Server 10.2.14.

EXTERNAL REFERENCES