ReadMeFeed / Community knowledge
Real questions. Useful conversations. Find the people who know your stack.
Decide between no persistence, EventSourcedBehavior, and DurableStateBehavior for Akka actors based on auditability, recovery cost, and storage constraints, with a testkit-based validation path.
Schema Evolution in Akka Persistence When updating the event schema for a Persistent Actor, the primary goal is ensuring that a previous binary version can still recover state if a deployment must be rolled back after new events have been written to the journal. The Compatibility Constraint Akka Persistence provides EventAdapter and upcaster chains to handle
Akka Persistence event-sourced actors can persist duplicate events when a command is retried after a failure, because the framework does not provide built-in duplicate suppression. The documented pattern embeds a unique requestId in the command and maintains a set of processed identifiers in actor state, but the exact configuration boundary between framework
akka