Database Administration
Diagnosing & Resolving MariaDB / MySQL Metadata Lock (MDL) Storms & Table Definition Cache Thrashing in High-Traffic Workloads
An advanced systems engineering guide to diagnosing 'Waiting for table metadata lock' deadlocks, tracing MDL blockers via performance_schema and sys schema, resolving table definition cache thrashing, and configuring zero-downtime DDL in high-concurrency MySQL/MariaDB environments.
