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MariaDB Enterprise Server InnoDB I/O Threads

Overview

Starting with MariaDB Enterprise Server 10.5 and MariaDB Community Server 10.5, the InnoDB I/O Threads were replaced by the asynchronous I/O functionality in the InnoDB Background Thread Pool.

Feature Summary

Feature
Detail
Resources

Thread

InnoDB I/O Threads

Storage Engine

InnoDB

Purpose

Reading data from disk / Writing data to disk

Availability

MariaDB Enterprise Server

Quantity

Set by innodb_read_io_threads and innodb_write_io_threads

Configure the InnoDB I/O Threads

Basic Configuration

[mariadb]
...
innodb_read_io_threads=8
innodb_write_io_threads=8
SET GLOBAL innodb_read_io_threads=8;
SET GLOBAL innodb_write_io_threads=8;

SHOW GLOBAL VARIABLES
   LIKE 'innodb_%_io_threads';
+-------------------------+-------+
| Variable_name           | Value |
+-------------------------+-------+
| innodb_read_io_threads  | 8     |
| innodb_write_io_threads | 8     |
+-------------------------+-------+

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