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...

Your DBA Is Absent: What Now?

September 8, 2021 Lukas Vileikis

Your DBA is Absent: What Do You Do?

September 7, 2021 Lukas Vileikis

How to verify a backup?

September 7, 2021 Sebastian Insausti

Comparing CCX with Amazon DynamoDB

September 6, 2021 Lukas Vileikis

Why Database as a Service?

September 4, 2021 Lukas Vileikis

Benchmarking databases 101 – part 2

August 30, 2021 Krzysztof Ksiazek

MySQL Security with ClusterControl

August 26, 2021 Lukas Vileikis