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thread_handling

This page is part of MariaDB's Documentation.

The parent of this page is: System Variables for MariaDB Enterprise Server

Topics on this page:

Overview
USAGE
DETAILS
- SYNONYMS
- SCHEMA
- PARAMETERS
- SKYSQL
- PRIVILEGES
EXAMPLES
ERROR HANDLING
FEATURE INTERACTION
RESPONSES
DIAGNOSIS
ISO 9075:2016
CHANGE HISTORY
RELATED TOPICS
EXTERNAL REFERENCES

Overview

Define threads usage for handling queries

See also: System Variables for MariaDB Enterprise Server 11.4, in 10.6 ES, 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 11.4, in 10.6 ES, in 10.5 ES, and in 10.4 ES

USAGE

DETAILS

SYNONYMS

SCHEMA

PARAMETERS

Command-line	--thread_handling={one-thread-per-connection\|no-threads\|pool-of-threads}
Configuration file	Supported
Dynamic	No
Scope	Global
Data Type	ENUM (one-thread-per-connection, no-threads, pool-of-threads)
Product Default Value	one-thread-per-connection

SKYSQL

Cloud	SkySQL Topology	ES Ver	Service Default
AWS	Multi-Node Analytics	10.6	one-thread-per-connection (choices: ONE-THREAD-PER-CONNECTION, NO-THREADS, POOL-OF-THREADS)
	Single Node Analytics	10.6	one-thread-per-connection (choices: ONE-THREAD-PER-CONNECTION, NO-THREADS, POOL-OF-THREADS)
	Replicated Transactions	10.4	one-thread-per-connection (choices: ONE-THREAD-PER-CONNECTION, NO-THREADS, POOL-OF-THREADS)
		10.5	one-thread-per-connection (choices: ONE-THREAD-PER-CONNECTION, NO-THREADS, POOL-OF-THREADS)
		10.6	one-thread-per-connection (choices: ONE-THREAD-PER-CONNECTION, NO-THREADS, POOL-OF-THREADS)
	Single Node Transactions	10.4	one-thread-per-connection (choices: ONE-THREAD-PER-CONNECTION, NO-THREADS, POOL-OF-THREADS)
		10.5	one-thread-per-connection (choices: ONE-THREAD-PER-CONNECTION, NO-THREADS, POOL-OF-THREADS)
		10.6	one-thread-per-connection (choices: ONE-THREAD-PER-CONNECTION, NO-THREADS, POOL-OF-THREADS)
GCP	Multi-Node Analytics	10.6	one-thread-per-connection (choices: ONE-THREAD-PER-CONNECTION, NO-THREADS, POOL-OF-THREADS)
	Single Node Analytics	10.6	one-thread-per-connection (choices: ONE-THREAD-PER-CONNECTION, NO-THREADS, POOL-OF-THREADS)
	Replicated Transactions	10.4	one-thread-per-connection (choices: ONE-THREAD-PER-CONNECTION, NO-THREADS, POOL-OF-THREADS)
		10.5	one-thread-per-connection (choices: ONE-THREAD-PER-CONNECTION, NO-THREADS, POOL-OF-THREADS)
		10.6	one-thread-per-connection (choices: ONE-THREAD-PER-CONNECTION, NO-THREADS, POOL-OF-THREADS)
	Single Node Transactions	10.4	one-thread-per-connection (choices: ONE-THREAD-PER-CONNECTION, NO-THREADS, POOL-OF-THREADS)
		10.5	one-thread-per-connection (choices: ONE-THREAD-PER-CONNECTION, NO-THREADS, POOL-OF-THREADS)
		10.6	one-thread-per-connection (choices: ONE-THREAD-PER-CONNECTION, NO-THREADS, POOL-OF-THREADS)

Cloud	SkySQL Topology	ES Ver	Service Default
AWS	ColumnStore Data Warehouse	10.6	one-thread-per-connection (choices: no-threads, one-thread-per-connection, pool-of-threads)
	Enterprise Server With Replica(s)	10.4	one-thread-per-connection (choices: no-threads, one-thread-per-connection, pool-of-threads)
		10.5	one-thread-per-connection (choices: no-threads, one-thread-per-connection, pool-of-threads)
		10.6	one-thread-per-connection (choices: no-threads, one-thread-per-connection, pool-of-threads)
	Enterprise Server Single Node	10.4	one-thread-per-connection (choices: no-threads, one-thread-per-connection, pool-of-threads)
		10.5	one-thread-per-connection (choices: no-threads, one-thread-per-connection, pool-of-threads)
		10.6	one-thread-per-connection (choices: no-threads, one-thread-per-connection, pool-of-threads)
GCP	ColumnStore Data Warehouse	10.6	one-thread-per-connection (choices: no-threads, one-thread-per-connection, pool-of-threads)
	Enterprise Server With Replica(s)	10.4	one-thread-per-connection (choices: no-threads, one-thread-per-connection, pool-of-threads)
		10.5	one-thread-per-connection (choices: no-threads, one-thread-per-connection, pool-of-threads)
		10.6	one-thread-per-connection (choices: no-threads, one-thread-per-connection, pool-of-threads)
	Enterprise Server Single Node	10.4	one-thread-per-connection (choices: no-threads, one-thread-per-connection, pool-of-threads)
		10.5	one-thread-per-connection (choices: no-threads, one-thread-per-connection, pool-of-threads)
		10.6	one-thread-per-connection (choices: no-threads, one-thread-per-connection, pool-of-threads)

See SkySQL details in MariaDB SkySQL previous release
See SkySQL details in MariaDB SkySQL new release

PRIVILEGES

EXAMPLES

ERROR HANDLING

FEATURE INTERACTION

RESPONSES

DIAGNOSIS

ISO 9075:2016

CHANGE HISTORY

Release Series	History
11.4 Enterprise	Not present.
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
11.4 Enterprise	Not present.
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.

RELATED TOPICS

EXTERNAL REFERENCES

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