Skip to content
Percona Software for MySQL Documentation

For help, click the link below to get free database assistance or contact our experts for personalized support.

Get help from Percona

Percona XtraDB Cluster 8.0.43-34 (2025-09-22)

Get started with Quickstart Guide for Percona XtraDB Cluster.

Percona XtraDB Cluster 8.0.43-34 includes all the features and bug fixes available in Percona Server for MySQL 8.0.43-34.

Release highlights

Percona XtraDB Cluster is based on Percona Server for MySQL. Find a complete list of improvements and bug fixes in the Percona Server for MySQL 8.0.43-34 (2025-08-28) release notes.

Percona XtraDB Cluster 8.0.43-34

Implements Link-Time Optimization (LTO) to generate more optimized release binaries, resulting in improved performance for specific workloads.

Percona Server for MySQL 8.0.43-34

  • Improves the audit_log_filter_set_user() UDF to accept account names with wildcard characters ('%' and '_') in the host part. For example, you can use ‘usr1@%', ‘usr2%192.168.0.%’, or 'usr3@%.mycorp.com'.

  • Updates the C++ level of the KMPI library to enhance error handling capabilities.

  • Improves optimizer behavior by restoring correct handling of const tables in test_quick_select(). A MySQL Upstream refactor (commit 9a13c1c) removed the QEP_TAB dependency, causing get_quick_record_count() to no longer pass const table information. This could lead to suboptimal range scan boundaries. The applied patch resolves the issue by explicitly passing const_tables to test_quick_select(), ensuring consistent behavior with the pre-refactor logic.

MySQL 8.0.43

Improvements and bug fixes provided by Oracle for MySQL 8.0.43 and included in Percona Server for MySQL are the following:

  • Fixed an issue where rebuilding a primary key with duplicate entries could cause the server to stop unexpectedly. (Bug #37822992)

  • Fixed an issue related to dropping columns that were part of an index. (Bug #37726881)

  • Fixed an issue with indexing spatial datatype columns. (Bug #36682518)

  • Fixed an issue where creating a secondary index on a VARCHAR column could exceed configured memory limits, with the amount allocated being directly related to the value of innodb_ddl_buffer_size, leading to errors such as ERROR 1136 (21S01): Column count doesn’t match value count at row 1. (Bug #37233273)

Find the complete list of bug fixes and changes in the MySQL 8.0.43 Release Notes.

New feature

PXC-4631: Percona XtraDB Cluster now prevents a node from automatically attempting a State Snapshot Transfer (SST) after a failed Incremental State Transfer (IST).

Bug fixes

  • PXC-4392: The issue was resolved by PXB-3470, which occurred when users had large databases containing compressed tables.

  • PXC-4644:Creating a foreign key (FK) without sufficient privileges causes a cluster inconsistency. The node where the command is executed fails with Error 1216 (Cannot add or drop foreign key constraint), while other nodes in the cluster that replicate the event fail with Error 1452 (Cannot add or update a child row: a foreign key constraint fails).

Additional resources

Download product binaries, packages, and tarballs at Percona Product Downloads

Install Percona XtraDB Cluster

The Percona XtraDB Cluster GitHub repository

Contribute to the documentation

For training, contact Percona Training - Start learning now.