Since serverless systems work on the basis of a single function, they are well suited to problems that are, or can be broken down into, the following subsystems:
- Stateless
- Computationally small and predictable
Serverless functions are ephemeral; that is, they have a known lifetime. Computation that is itself stateless is the type of problem where FaaS platforms shine. Application state may exist, and functions may store that state using a database or some other kind of data store, but the functions themselves retain no state between invocations.
In terms of computing resources, serverless functions have an upper bound, both in memory and total duration. Your software should have an expected or predictable upper limit that ...
