In about ~2 hours I'll be running our live "Introduction to @AkkaDotNET Streams" training and this session is open to the public. Anyone can join without a support plan.

It's listed at the top of petabridge.com/training/?utm_…

Going live with our November 2026 @AkkaDotNET Community Standup in about 15 minutes - lots of important v1.6 work plus Akka.Reminders!
youtube.com/watch?v=SqvtWg…

Your actors sleep. Their reminders don't.

Akka.Reminders wakes sharded @AkkaDotNET entities on a durable schedule — even after passivation or a restart.

Live tomorrow, 12 PM CT 👇
youtube.com/watch?v=SqvtWg…

A process manager should coordinate a long-running workflow, not perform every step itself. Persist progress, delegate work, and resume from the last successful offset after a worker failure or timeout.

petabridge.com/blog/akkadotne…

@AkkaDotNET v1.5.74 is out: Streams, Cluster Sharding, Persistence, and Hosting fixes.

The shared materializer no longer dies on Dispose(). Sharding handoff no longer stalls. Async handlers stay on-thread.

No new APIs, no breaking changes.
github.com/akkadotnet/akk…

In CQRS, a persistent actor can own the write model: validate a command, persist events, update state, then project it into a query-friendly database model. The projection is not the authority.

petabridge.com/blog/crud-to-c…

Akka.Streams.Kafka 1.5.73 fixes a throughput defect in partitioned consumers: ~6,200 → ~16,900 msg/s.

petabridge.com/blog/akka-stre…

Akka.Aspire turns a local @AkkaDotNET cluster into executable topology: declare discovery, a shared cluster, and service replicas in the AppHost; health checks gate startup until bootstrap succeeds.

petabridge.com/blog/akkadotne…

While looking into a user's PR for Akka.Streams.Kafka, found a stupid bug I introduced that was negatively impacting partitioned stream (parallelism) performance.

Given that this is how most prod users run Kafka with @AkkaDotNET , upgrade to 1.5.73

Chart for reference:

Static seed-node addresses are a poor fit for dynamic infrastructure. Akka .Management and Akka.Discovery locate contact points, probe them, then join an existing cluster or safely form one.

petabridge.com/blog/akka-mana…

Tomorrow 12pm CT: @AkkaDotNet Community Standup — v1.6 betas: AOT, source-gen serialization, faster Akka.Remote.

youtube.com/live/bKZzjuiEa…

In ASP .NET Core, register @AkkaDotNET with `AddAkka` instead of manually managing the ActorSystem. Akka .Hosting adds lifecycle management, the ActorRegistry, and access to actor references through .NET DI.

petabridge.com/blog/akkadotne…

A fixed Akka.NET CVE offers a useful design lesson: keep Akka.Remote on private networks, and use mTLS when traffic crosses trust boundaries. Add hostname validation or pinning when the threat model requires it.

petabridge.com/blog/akka-net-…

So @AkkaDotNET v1.6 is already an order-of-magnitude improvement for networking and serialization performance over v1.5, but the next beta of it is about to be even faster:

Looking at about a ~20% throughput improvement across the board and significant reductions in CPU / mem All from simple mechanical fixes plus some experimental IActorRef compression on the receiving side of the wire.

Kafka consumers must coordinate in-flight work, offset commits, and partition revocation. Akka.Streams.Kafka layers stream backpressure and committable offsets over Confluent.Kafka so those concerns stay in one pipeline.

petabridge.com/blog/akka-stre…

“Unreachable” does not mean “removed” in Akka.NET. A busy process or short network partition may recover. Give partitions time to heal, then let a split-brain strategy decide when a member must be downed.

petabridge.com/blog/proper-ca…

Had a customer try out @AkkaDotNET v1.6 in their high-performance app today and report several different performance / code-generated serializer issues their agents found while exercising it.

The rate at which we can improve software now is just incredible

Kubernetes rollouts can trigger repeated shard rebalances. Petabridge recommends Deployments with `maxSurge: 1` and `maxUnavailable: 0` for new Akka.NET projects, bringing up a replacement before removing the old pod.

petabridge.com/blog/akkadotne…

With Akka.Cluster.Sharding, callers send to an entity ID instead of tracking a node address. Sharding locates or starts that entity and can redistribute its shard as cluster membership changes.

petabridge.com/blog/distribut…

An Akka.NET actor can use `Become` to change which messages it handles in each state. Pair it with `IStash` to defer requests that aren’t valid yet, then unstash them when the actor returns to a ready behavior.

petabridge.com/blog/akka-acto…