This article explains the MySQL MY-013129 error, its lack of a fixed message, the code paths that generate it in MySQL 8.0, why it is logged as an ERROR, and practical recommendations for filtering or handling the log entries.
This article explains why MySQL reports error 1040 "Too many connections", shows how Percona Server can reserve an admin port to keep DBA access, and details MySQL 8.0.14's built‑in admin connection feature with configuration steps, commands, and a performance experiment.
This article provides a comprehensive technical analysis of MySQL 8.0's atomic DDL implementation, detailing the transition from fragmented FRM-based metadata to a unified InnoDB Data Dictionary, and explaining how the DDL Log mechanism ensures crash-safe physical file operations during schema modifications.
This article explains MySQL 8.0's dual‑password mechanism for smooth password rotation and its built‑in random password generation feature, providing step‑by‑step commands, usage scenarios, and important cautions for database administrators.
Facebook’s engineering team detailed a multi‑year, complex migration from MySQL 5.6 to 8.0, highlighting custom‑feature porting, replication compatibility, query changes, performance regressions, and documentation gaps, and explaining how they finally achieved a successful upgrade.
The article explains why some MySQL 8.0.18 production environments enforce a password policy despite lacking the validate_password plugin, by examining configuration files, server parameters, and the role of the validate_password component introduced in MySQL 8.0.
The first episode of the “MySQL Chōng Chōng Chōng” livestream discusses why now is an excellent time to upgrade to MySQL 8.0, covering fast add‑column, Atomic DDL, Hash Join, Group Replication, authentication changes, and includes thanks to sponsors and a preview of the next show.
