by Nagarajan Ponnusamy | Oct 13, 2026 | AWS RDS, MySQL
Imagine a production Amazon RDS for MySQL instance that has been running normally for months. Suddenly, application writes start failing. Background jobs stop processing, and the application team reports database connectivity issues. You check CloudWatch. CPU...
by Nagarajan Ponnusamy | Sep 8, 2026 | AWS RDS, Databases, General, MySQL
For many years, database administrators have been responsible for almost everything around databases — from installing and configuring the operating system to managing storage, backups, replication, patching, monitoring, and performance. Amazon RDS for Databases...
by Nagarajan Ponnusamy | Aug 4, 2026 | Databases, General, MongoDB
Choosing the right shard key is one of the most important architectural decisions when designing a MongoDB sharded cluster. A well-designed shard key distributes data and workload evenly across shards, allowing the cluster to scale efficiently as data volumes and...
by Nagarajan Ponnusamy | Jun 30, 2026 | Innodb, MySQL
Table of Contents Part 1 – Setting the Foundation Introduction Understanding the InnoDB Architecture Meet Our Transaction Part 2 – The Write Path The Buffer Pool – Where Every Transaction Begins Redo Log – Protecting Transactions Before the Data Reaches Disk Undo Log...
by Nagarajan Ponnusamy | Jun 16, 2026 | Databases, KnowledgeBase
If there is one thing years of production database support have taught us, it is this: Most security incidents don’t happen because MariaDB lacks security features. They happen because nobody verifies whether those features are still configured correctly after...
