Database Insights

Eliminate stale cache reads and thundering-herd stampedes by streaming MySQL binlog changes to Valkey via Debezium CDC. Full Java setup with embedded engine and XFetch.

Migrate from MySQL to PostgreSQL using pgLoader. Covers schema differences, type casting, application code changes, validation, and zero-downtime migration strategies.

Design multi-tenant databases — compare schema-per-tenant, row-level-security, and database-per-tenant approaches

Use Aurora Serverless v2 for cost-effective scaling — ACU configuration, scaling behavior, and when it fits

Set up MySQL Orchestrator for automatic failover, topology discovery, and master election at scale

Size and configure the InnoDB buffer pool correctly to maximize cache hit ratios and minimize disk I/O

Manage MySQL binary logs safely — set retention, purge old logs, and avoid disk exhaustion in production

Use MySQL Performance Schema to profile queries, monitor memory, and diagnose bottlenecks without guesswork

2025 was the year databases competed on operational simplicity. Serverless databases matured, pgvector merged vector search into PostgreSQL, and CDC became standard infrastructure. Here's what mattered and what's next.

Compare Liquibase and Flyway for production database schema management. Learn changelog formats, rollback strategies, team workflows, and CI/CD integration patterns.

Five counterintuitive database performance truths every engineer gets wrong — over-indexing costs, N+1 queries, connection pool sizing, replica reads, and EXPLAIN limitations.

RDS MySQL audit logs stored in CloudWatch cost significantly more than S3 — and most teams don't need real-time log access. Here's how to export audit logs to S3 and cut your AWS bill.