Percona Server for MySQL 5.7.44-48 (2023-12-05)¶
Important
Percona Server for MySQL 5.7.44-48 is the final release of the Percona Server for MySQL 5.7 series.
We recommend that you either upgrade to MySQL 8.0 or stay on 5.7; we’ll support you.
Percona Server for MySQL 5.7.44-48 includes all the features and bug fixes available in MySQL 5.7.44 Community Edition in addition to enterprise-grade features developed by Percona.
Release highlights¶
Percona Server for MySQL implements telemetry that fills the gaps in our understanding of how you use Percona Server to improve our products. Participation in the anonymous program is optional. You can opt out if you prefer not to share this information. Find more details in the Telemetry on Percona Server for MySQL document.
Improvements and bug fixes provided by Oracle for MySQL 5.7.44 and included in Percona Server for MySQL are the following:
- Upgraded the linked Open SSL library to OpenSSL 3.0.10
- Removed the printed query string limit to display the characters for a detected deadlock section of the engine status log
Find the complete list of additions or bug fixes in the MySQL 5.7.44 Release Notes.
Bug fixes¶
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PS-7806: Working with tables with column compression broke asynchronous replication. Using column compression on the tables reduces the storage space and the memory usage of the data but also increases the CPU overhead and complexity. Asynchronous replication sends data from one node to another without waiting for acknowledgment, which improves performance and source availability but also risks data loss and inconsistency. With column compression, the replica must decompress the data in the columns, which can cause errors, delays, or conflicts.
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PS-8879: A large table received an out-of-memory error when running
ALTER TABLE ... COLUMN_FORMAT COMPRESSED;because the internal DDL copy operation consumed the available memory (thank you to minghuan zhao for your contribution).
Useful links¶
Install Percona Server for MySQL
The Percona Server for MySQL GitHub repository
Contribute to the documentation
Download product binaries, packages, and tarballs at Percona Product Downloads
For training, contact Percona Training - Start learning now