Akka v0.7 live release

[Aaronontheweb]

0.7.0 Oct 16 2014

Major new changes and additions in this release, including some breaking changes...

Akka.Cluster Support (pre-release) - Akka.Cluster is now available on NuGet as a pre-release package (has a -pre suffix) and is available for testing. After installing the the Akka.Cluster module you can add take advantage of clustering via configuration, like so:

akka {
    actor {
      provider = "Akka.Cluster.ClusterActorRefProvider, Akka.Cluster"
    }

    remote {
      log-remote-lifecycle-events = DEBUG
      helios.tcp {
    hostname = "127.0.0.1"
    port = 0
      }
    }

    cluster {
      seed-nodes = [
    "akka.tcp://[email protected]:2551",
    "akka.tcp://[email protected]:2552"]

      auto-down-unreachable-after = 10s
    }
  }

And then use cluster-enabled routing on individual, named routers:

/myAppRouter {
 router = consistent-hashing-pool
  nr-of-instances = 100
  cluster {
    enabled = on
    max-nr-of-instances-per-node = 3
    allow-local-routees = off
    use-role = backend
  }
}

For more information on how clustering works, please see #400

Breaking Changes: Improved Stashing - The old WithUnboundedStash and WithBoundedStash interfaces have been slightly changed and the CurrentStash property has been renamed to Stash. Any old stashing code can be replaced with the following in order to continue working:

public IStash CurrentStash { get { return Stash; } set { Stash=value; } }

The Stash field is now automatically populated with an appropriate stash during the actor creation process and there is no need to set this field at all yourself.

Breaking Changes: Renamed Logger Namespaces - The namespaces, DLL names, and NuGet packages for all logger add-ons have been changed to Akka.Loggers.Xyz. Please install the latest NuGet package (and uninstall the old ones) and update your Akka HOCON configurations accordingly.

Serilog Support - Akka.NET now has an official Serilog logger that you can install via the Akka.Logger.Serilog package. You can register the serilog logger via your HOCON configuration like this:

 loggers=["Akka.Logger.Serilog.SerilogLogger, Akka.Logger.Serilog"]

New Feature: Priority Mailbox - The PriorityMailbox allows you to define the priority of messages handled by your actors, and this is done by creating your own subclass of either the UnboundedPriorityMailbox or BoundedPriorityMailbox class and implementing the PriorityGenerator method like so:

public class ReplayMailbox : UnboundedPriorityMailbox
{
    protected override int PriorityGenerator(object message)
    {
        if (message is HttpResponseMessage) return 1;
        if (!(message is LoggedHttpRequest)) return 2;
        return 3;
    }
}

The smaller the return value from the PriorityGenerator, the higher the priority of the message. You can then configure your actors to use this mailbox via configuration, using a fully-qualified name:

replay-mailbox {
 mailbox-type: "TrafficSimulator.PlaybackApp.Actors.ReplayMailbox,TrafficSimulator.PlaybackApp"
}

And from this point onward, any actor can be configured to use this mailbox via Props:

Context.ActorOf(Props.Create<ReplayActor>()
                    .WithRouter(new RoundRobinPool(3))
                    .WithMailbox("replay-mailbox"));

New Feature: Test Your Akka.NET Apps Using Akka.TestKit - We've refactored the testing framework used for testing Akka.NET's internals into a test-framework-agnostic NuGet package you can use for unit and integration testing your own Akka.NET apps. Right now we're scarce on documentation so you'll want to take a look at the tests inside the Akka.NET source for reference.

Right now we have Akka.TestKit adapters for both MSTest and XUnit, which you can install to your own project via the following:

MSTest:

install-package Akka.TestKit.VsTest

XUnit:

install-package Akka.TestKit.Xunit

[Aaronontheweb]

Please note that Akka.Cluster is a pre-release NuGet package: http://www.nuget.org/packages/Akka.Cluster

So you'll need to use the -pre suffix when you install it:

Install-Package Akka.Cluster -Pre

[HCanber]

@Aaronontheweb Build and publish this nuspec file: https://gist.github.com/HCanber/ef36eab814f1fd7364d3
It's a Akka.NLog v0.7 that automatically installs the new Akka.Logger.NLog package and displays a readme with instructions what the user should do to use the new package.

[Aaronontheweb]

@HCanber sure thing Hakan - I'll take care of this today.

[Aaronontheweb]

@HCanber done - does this look right to you?

http://www.nuget.org/packages/Akka.NLog/