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...

Optimizer Hints for Faster MySQL Query Execution

October 22, 2015 Krzysztof Ksiazek

Using Explain to Improve SQL Query Performance

October 19, 2015 Krzysztof Ksiazek

ClusterControl 1.2.11 Released

October 13, 2015 Jean-Jérôme Schmidt

An Overview of MySQL Database Indexing

October 1, 2015 Krzysztof Ksiazek