Severalnines Blog

Automated Database Failover: Why Homegrown High Availability Struggles At Scale

October 2, 2026 Paul Namuag
I've encountered DBAs and ops engineers who shared war stories of running production long before automation and modern tooling went mainstream. Experiencing sudden primary faults during sleeping hours, getting paged, logging in to squint over trace logs that show replication lag on all replicas and working out which one is...

Understanding MongoDB Indexes

March 25, 2019 Onyancha Brian Henry

Best Practices for Running MongoDB in a Cluster

March 21, 2019 Onyancha Brian Henry

How to Migrate from Oracle DB to MariaDB

March 13, 2019 Jean-Jérôme Schmidt