What is Stateless serving?
Verified 5 August 2026
If the authoritative copy of the index lives elsewhere, a serving node is a cache. It can be killed, replaced, autoscaled or moved with no migration and no rebalancing — which is what makes horizontal scaling an operational non-event rather than a project.
The property a caller notices is failure behaviour: a stateless tier degrades rather than errors, because any node can answer any request.
Common questions
What is Stateless serving?
A stateless serving tier holds no authoritative data, so any node can be replaced without coordination or data loss.
How does Stateless serving work in practice?
The property a caller notices is failure behaviour: a stateless tier degrades rather than errors, because any node can answer any request.
See it working
The free tier is 10,000 requests a month with no card — enough to test any of this against your own queries.