Managing State at Scale: When to Use Akka Cluster Sharding
Stop building manual routing tables for distributed state. Learn how Akka Cluster Sharding automates entity distribution and memory management through passivation.
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akkaAkka Cluster Sharding: When to Distribute Stateful Entities
Decide whether Akka Cluster Sharding fits your stateful actor service, with configuration, an Order entity example, and operational trade-offs.
Avoiding Hot‑Spot Shards in Akka Cluster Sharding
Hot‑spot shards in Akka Cluster Sharding can cripple performance. This guide shows how to design entity IDs, configure a custom MessageExtractor, and verify even distribution to keep your cluster balanced and responsive.
scalaDesigning a Fault‑Tolerant, Scalable Domain with Akka Cluster Sharding
Cluster Sharding scales stateful domain entities across a cluster with minimal plumbing. This guide covers requirements, minimal design, trust boundaries, operational checks, failure modes, and when to adjust the design, with a Cassandra‑backed example.
Choosing a Persistence Strategy for Stateful Akka Actors: A Decision Guide
Decide between no persistence, EventSourcedBehavior, and DurableStateBehavior for Akka actors based on auditability, recovery cost, and storage constraints, with a testkit-based validation path.
Diagnosing Missing Entities in Akka Cluster Sharding
A diagnostic guide for Akka Cluster Sharding entities that never receive messages: registration gaps, passivation recovery failures, serializer mismatches, and how to verify each fix.
Implementing Akka Cluster Sharding for Stateful Persistent Entities (Scala)
Step‑by‑step guide to deploy Akka Cluster Sharding with typed persistence, including configuration, verification, and recovery procedures.
Scaling Millions of IoT Devices with Akka Cluster Sharding and Entity Passivation
Learn how Akka Cluster Sharding with entity passivation lets you address millions of IoT devices as actors without keeping them all in memory, and how to tune the idle timeout for your workload.
Implementing Single-Writer Consistency with Akka Cluster Sharding
Learn how to use Akka Cluster Sharding to ensure single-writer consistency across distributed nodes, preventing race conditions in stateful applications.