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...

Data Backups for SOC 2 Compliance

September 24, 2020 Andrew Abwoga

How Load Balancing Works with DBaaS Setups

September 22, 2020 Agus Syafaat

Connection Handling & Throttling with ProxySQL

September 21, 2020 Krzysztof Ksiazek

A Guide to MySQL Indexes

September 18, 2020 Lukas Vileikis

What’s New in HAProxy 2.2

September 16, 2020 Agus Syafaat

Storing Files in MongoDB with GridFS

September 11, 2020 Onyancha Brian Henry

How Does a Database Load Balancer Work?

September 10, 2020 Agus Syafaat

Tips for Managing & Monitoring Your Moodle Database

September 8, 2020 Sebastian Insausti

Scaling Out the Moodle Database

September 7, 2020 Krzysztof Ksiazek

What’s New in MongoDB 4.4

September 4, 2020 Onyancha Brian Henry