When to use service-managed record distribution

Use service-managed record distribution for stateless streaming workloads where record ordering is not required:

• Log aggregation

• Metrics collection

• IoT telemetry

• Clickstream analytics

Continue using customer-managed partition keys for stateful workloads that require ordering guarantees:

• Database change data capture (CDC) where updates to the same row must be processed sequentially

• Financial transaction processing where account-level ordering is required

• Session-based analytics where all events from a user session must be processed together

• Any application where business logic depends on processing related records in the order they were produced