BigDBA – Database,Devops,Big Data,Cloud & Oracle Blog

A field runbook for a two-node primary/standby setup, written from real upgrade notes and checked against Oracle MOS and Oracle Linux documentation.

On this page
1. What we are starting with
2. Why the database ...

Maintaining uninterrupted database services requires seamless communication between load balancers, health checks, and clustering engines. In enterprise environments running PostgreSQL with Patroni, any breakdown in node discovery or thread execution can bring down read/write operations within seconds. A real-world outage involving HAProxy 2.8 and Keepalived highlights the cr...

If you have ever built a mobile app on Firebase, you already know the appeal: a few SDK calls, and you get authentication, a document database, file storage, and security rules without standing up your own backend. It’s fast, and it feels good while you’re building the first version of your product.

The catch shows up later. Once your company already runs on Oracle ...