Database Insights

Performing online schema changes on MySQL tables with triggers is a known pain point — pt-osc creates conflicting triggers, and gh-ost has its own limitations. Here are the safe approaches.

Use Percona XtraBackup to take hot physical backups of MySQL InnoDB — setup, verification, and restore steps

A comprehensive guide to optimizing AWS RDS MySQL performance through infrastructure tuning, parameter configuration, and query optimization

MySQL 8.0 significantly improved geospatial support with SRID-aware columns, spatial reference systems, and accurate geographic distance calculations. Here's how to use it in production.

Set up MySQL Galera Cluster for synchronous multi-master replication — configuration, split-brain avoidance, and monitoring

Evaluate PlanetScale for MySQL workloads — Vitess-based branching, non-blocking schema changes, and pricing

MySQL 8.0 exposes error logs through performance_schema.error_log — enabling SQL-based filtering by severity, component, and timestamp without grep-ing log files.

MySQL's ecosystem includes three main logical backup tools — mysqldump, mysqlpump, and mydumper. Each has distinct performance characteristics, parallelism support, and compatibility trade-offs.

MySQL InnoDB tablespace encryption (TDE) encrypts data pages on disk without changing application code — using a two-tier keyring architecture that separates the master key from table keys.

Deploy enterprise-grade MySQL high availability with InnoDB Cluster. Learn Group Replication integration, MySQL Router configuration, and automatic failover setup.

Everything you need to know about MySQL: storage engines, replication topologies, performance tuning, and cloud deployment. From basics to advanced optimization.

ProxySQL's read/write splitting routes SELECT queries to replicas and writes to the primary automatically — but getting the configuration right requires understanding hostgroups, query rules, and lag-aware routing.