Horizontal scalability in Cloud Spanner

Question

Cloud Spanner claims that its infinitely scalable database solution. How Cloud Spanner actually implements horizontal scalability under the hood?

Answer 1

I’d recommend you take a look at these three videos in the Spanner: Database Unlimited Series.

1. What is Cloud Spanner?
2. Delivering high availability at scale
3. Delivering strong consistency at scale

There’s also a good visual explainer on the Google Cloud blog. And the white paper from 2012.