Severalnines Blog

Safe database change at fleet scale: canaries, maintenance waves, and recovery gates

November 6, 2026 Sebastian Insausti
A PostgreSQL minor update is about as boring as database maintenance gets. You stop the node, install the new binaries, and start it again. On one cluster, with someone watching, it rarely surprises anyone. Now do it on forty clusters at once. One of them pulls packages from a mirror...

Monitoring Percona XtraDB Cluster – Key Metrics

November 24, 2020 Krzysztof Ksiazek

How to Secure MySQL: Part One

November 20, 2020 Lukas Vileikis

An Overview of Percona Backup for MongoDB

November 19, 2020 Agus Syafaat

How to Deploy Percona XtraDB Cluster

November 11, 2020 Krzysztof Ksiazek