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Questions tagged [akka-cluster]

Akka cluster is a new (2.1+) functionality that allows one to build cluster capabilities on top of the Akka middleware.

486 questions
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Migration to Play! 2.5 leads to this error: NoSuchMethodError: akka.actor.LocalActorRefProvider.log()Lakka/event/LoggingAdapter

I'm updating my Play! scala application from 2.4 to 2.5.10 and I'm getting this runtime exception: java.lang.NoSuchMethodError: akka.actor.LocalActorRefProvider.log()Lakka/event/LoggingAdapter; The build.sbt part about Akka did not change and is as…
Simon
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Running akka scheduler only once in a cluster

I have configured a Akka scheduler in my play application. It works fine but now the problem is I have two instances of same application running in a cluster. So scheduler is also running twice. I want it to run only once for the overall…
CodeGuru
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In Akka.NET, (using Akka.Cluster) how to configure multiple seed nodes (Lighthouse) to know about each other?

If I want to have two Lighthouse seed nodes running on different PCs, where each should know about the other, how should I configure them? Although I have found mention of using multiple Lighthouse instances and seen non-seed node configurations…
foven
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Akka cluster detecting Quarantined state

How can I detect Quarantined state from within the system being quarantined~? I'm seeing this log below: [warn] Remoting - Tried to associate with unreachable remote address [akka.tcp://Application@192.168.0.15:6000]. Address is now gated for 5000…
Chris
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Akka Cluster with bind-port and bind-hostname

After configuring bind-hostname and bind-port in application.conf, as specified by the Akka FAQ, and bringing up the cluster, I'm receiving an error: [ERROR] [07/09/2015 19:54:24.132] [default-akka.remote.default-remote-dispatcher-20]…
babbitt
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Proper way to inject dependencies into clustered persistent Akka actors?

I'm using Akka Persistence with Cluster Sharding. What is the proper way to provide dependencies into such PersistentActor-s? As far as I understand, passing them as constructor arguments is not possible, as Cluster Sharding is creating these…
John M
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Akka remote routees hostname configuration issue

I am experiencing the akka remote feature for a tool I am making. Actually, I was able to make core and remote systems works in the same host with diferent ports. Note that my remote servers runs over a router, as explained in akka docs. Now I am…
Raphael do Vale
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How to add seed nodes to a running akka-cluster

I am trying to create a fault tolerant akka-cluster which will be deployed in AWS. Its a standard cluster with 3 seed-nodes SN1, SN2 and SN3 and multiple Akka-systems connected to one seed-node. The SN's have ASG's which will spin a new instance in…
user3869813
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Akka Singleton - not accepting messages

It was me being stupid - I wasn't passing the indexer props into system creation. I'll leave the answer here in case anyone takes some benefit * I'm creating a singleton and sending a message like this: val indexerProps =…
Nick
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How to run multiple Akka.NET Lighthouse seeds

On my way to use Akka.NET for a scalable application, I am trying to setup a cluster of Lighthouse seed nodes. I am testing 3 Lighthouse nodes as seed nodes, each running on the same machine with different ports. Following is my hocon config…
Babu James
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Akka Cluster status Weakly Up

I read Akka document and found this As mentioned before, if a node is unreachable then gossip convergence is not possible and therefore any leader actions are also not possible. By enabling akka.cluster.allow-weakly-up-members (enabled by default)…
Manh Do
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Akka HTTP Code/Structural Patterns

I am just starting with Akka Http (and Scala) and was wondering if there are any well-defined patterns for structuring Akka code. In particular, I am looking for structural patterns for composing/aggregating routes dynamically. In particular, I'm…
MojoJojo
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Flink TaskManager cannot connect to JobManager in docker swarm task

I cannot manage to make a TaskManager communicate with the JobManager on a docker swarm stack. The content of the stack.yml file I use to docker stack deploy is: version: "3" services: jobmanager: image: affo/flink:1.1.3 ports: -…
affo
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Can a cluster have multiple singleton actors?

Can there be multiple different actors which are singletons in an Akka cluster? For example, let's say I need a single entry point into multiple systems. I might want Singleton1 to be responsible for entry into System1 and Singleton2 to be…
Justin
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Singleton cluster actor is not starting up

The following cluster singleton is not starting up. commander = system.actorOf( ClusterSingletonManager.props(Commander.props(this), terminationMessage = PoisonPill.getInstance, settings =…
Dyin
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