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Percona Software for MySQL Documentation

Percona Distribution for MySQL 8.0.29 using Percona Server for MySQL (2022-08-09)

Release date August 8, 2022
Installation Installing Percona Distribution for MySQL

Percona Distribution for MySQL is a single solution with the best and most critical enterprise components from the MySQL open-source community, designed and tested to work together.

Percona Distribution for MySQL provides two deployment variants: one is based on Percona Server for MySQL and another one is based on Percona XtraDB Cluster.

This release is focused on the Percona Server for MySQL-based deployment variant. It is based on Percona Server for MySQL 8.0.29-21.

Release Highlights

The following lists a number of the bug fixes for MySQL 8.0.29, provided by Oracle, and included in Percona Server for MySQL and Percona Distribution for MySQL:

  • The Performance Schema tracks if a query was processed on the PRIMARY engine, InnoDB, or a SECONDARY engine, HeatWave. An EXECUTION_ENGINE column, which indicates the engine used, was added to the Performance Schema statement event tables and the sys.processlist and the sys.x$processlist views.
  • Added support for the IF NOT EXISTS option for the CREATE FUNCTION, CREATE PROCEDURE, and CREATE TRIGGER statements.
  • Added support for ALTER TABLE ... DROP COLUMN ALGORITHM=INSTANT.
  • An anonymous user with the PROCESS privilege was unable to select processlist table rows.

Find the full list of bug fixes and changes in the MySQL 8.0.29 Release Notes.

Note

Percona Server for MySQL has changed the default for supported DDL column operations to ALGORITHM=INPLACE. This fixes corruption issue and several other issues with the INSTANT ADD/DROP COLUMN DDL (Find more details in PS-8292, PS-8291 and PS-8303).

In MySQL 8.0.29, the default setting for supported DDL operations is ALGORITHM=INSTANT. You can explicitly specify ALGORITHM=INSTANT in DDL column operations.

For more information, see Percona Blog: Percona XtraBackup 8.0.29 and INSTANT ADD/DROP Columns.

Orchestrator

  • DISTMYSQL-198: orchestrator client packages were missing for RPM based distributions. Starting from v8.0.29 they are now built and available for download.
  • DISTMYSQL-197: Option --version now returns a more understandable version number (in addition to the commit hash).

Packaging Notes

Debian 9 (“Stretch”) is no longer supported. To learn more, see Percona Blog: OS Platform End of Life (EOL) Announcement for Debian Linux 9

The following is the list of components supplied with Percona Server for MySQL-based deployment variant of Percona Distribution for MySQL:

Component Version Description
Orchestrator 3.2.6-3 The replication topology manager for Percona Server for MySQL
ProxySQL 2.3.2 A high performance, high-availability, protocol-aware proxy for MySQL
Percona XtraBackup 8.0.29-22 An open-source hot backup utility for MySQL-based servers
Percona Toolkit 3.4.0 The set of scripts to simplify and optimize database operation
MySQL Shell 8.0.29 An advanced client and code editor for MySQL Server
MySQL Router 8.0.29 Lightweight middleware that provides transparent routing between your application and back-end MySQL servers

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