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...

MongoDB Sharding Ins & Outs: Part Two

November 23, 2016 Art van Scheppingen

Cloud Lock-in and Open Source Databases

November 17, 2016 Vinay Joosery

Keeping the Tills Ringing at eCommerce Platform vidaXL

November 9, 2016 Jean-Jérôme Schmidt

MongoDB Sharding Ins & Outs: Part One

November 1, 2016 Art van Scheppingen

MongoDB: How to Scale Reads

October 10, 2016 Art van Scheppingen

Sharding MySQL with MySQL Fabric and ProxySQL

October 3, 2016 Krzysztof Ksiazek

Two Database Sharding Tools for MySQL

September 27, 2016 Krzysztof Ksiazek