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Percona Distribution for MySQL 8.0.28 using Percona XtraDB Cluster (2022-07-19)

Release date July 19, 2022
Installation Installing Percona Distribution for MySQL

Percona Distribution for MySQL is a single solution with the 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 of Percona Distribution for MySQL is focused on the Percona XtraDB Cluster-based deployment variant. It is based on Percona XtraDB Cluster 8.0.28-19.1

Release Highlights

The following lists a number of the bug fixes for MySQL 8.0.28, provided by Oracle, and included in Percona XtraDB Cluster and Percona Distribution for MySQL:

  • The ASCII shortcut for CHARACTER SET latin1 and UNICODE shortcut for CHARACTER SET ucs2 are deprecated and raise a warning to use CHARACTER SET instead. The shortcuts will be removed in a future version.
  • A stored function and a loadable function with the same name can share the same namespace. Add the schema name when invoking a stored function in the shared namespace. The server generates a warning when function names collide.
  • InnoDB supports ALTER TABLE ... RENAME COLUMN operations when using ALGORITHM=INSTANT.
  • The limit for innodb_open_files now includes temporary tablespace files. The temporary tablespace files were not counted in the innodb_open_files in previous versions.

Find the full list of bug fixes and changes in the MySQL 8.0.28 Release Notes.

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

Component Version Description
Percona XtraBackup 8.0.28 An open-source hot backup utility for MySQL-based servers that doesn’t lock your database during the backup.
HAProxy 2.5.6 A high-availability and load-balancing solution for Percona XtraDB Cluster. This is a default proxy.
ProxySQL 2.3.2 A high performance, high-availability, protocol-aware proxy for MySQL.
Percona Toolkit 3.4.0 The set of scripts to simplify and optimize database operation.

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