Practical articles on AI, DevOps, Cloud, Linux, and infrastructure engineering.
Backups are easy. Restores are hard. The quarterly drill we run, what's failed during it, and the discipline that makes "we have backups" actually mean something.
Replication is the foundation of database HA. What we monitor, how we practice failover, and the gotchas that show up only when you actually fail over.
Why Postgres connection limits bite at unexpected times, the pooling layer we put in front, and the pool-mode tradeoffs we learned the hard way.
A 2 AM incident, the autovacuum settings that caused it, and the parameter changes that prevented the next one. The discipline that took our biggest Postgres host from periodic stalls to steady.
