Definition
A service that keeps no client/session state between requests, so any instance can handle any request.
How it works
Statelessness is what makes horizontal scaling and load balancing easy — kill or add instances freely, no sticky sessions. Push the state outward: sessions in Redis, data in the DB, files in S3. The standard shape for web/app tiers; only the storage layer is deliberately stateful.
Learn more on SystemLore
Common questions
What is Stateless Service?
A service that keeps no client/session state between requests, so any instance can handle any request.
How does Stateless Service work?
Statelessness is what makes horizontal scaling and load balancing easy — kill or add instances freely, no sticky sessions. Push the state outward: sessions in Redis, data in the DB, files in S3. The standard shape for web/app tiers; only the storage layer is deliberately…
What is Stateless Service used for in system design?
Statelessness is what makes horizontal scaling and load balancing easy — kill or add instances freely, no sticky sessions. Push the state outward: sessions in Redis, data in the DB, files in S3. The standard shape for web/app tiers; only the storage layer is deliberately…