Custom EntityStreamingSupport
Hello, I’m trying to create a new implementation of EntityStreamingSupport. Here is my actual code: class ChecksumStreamingSupport private[akka]( maxObjectSize: Int, val supported: ContentTypeRange,...
View ArticleSetting up RoundRobinGroup with BalancingPool
Hi guys, I’m distributing quite heavy computation with Akka Cluster. Orchestrating actor is spawning subtasks which send their results to reducing actor which in the end is collecting sub results and...
View ArticleRun a websocket server in a multi-jvm test
Hi all, I have a multi-jvm integration test that involves 3 JVMs and runs several tests. Now, these 3 JVMs need to communicate with an “external” server. Currently, i start this server beforehand,...
View ArticleIs implementing a peer-to-peer network of Akka nodes that can come and go...
Hi, we are trying to implement a system where a set of Akka system nodes form a peer-to-peer network. The maximum number of nodes as well as their addresses are known by each node in advance. All...
View ArticleStreaming Multiple files periodically from shared directory
Hi, We are designing a Flow using akka streams which does following things Periodically look for files in a directory (an NFS mount) - Using Ticker source List the files Read lines from each file...
View ArticleException during recovery. Last known sequence number [0]. PersistenceId...
Hi, I’m getting the following error when I use Akka persistence with Cassandra plugin: Caused by: akka.persistence.typed.internal.JournalFailureException: Exception during recovery. Last known...
View ArticleHow to create Graph at runtime?
Hello, everybody! I need to build akka streams graph at runtime. I have some kind of configuration file (blueprint) which describes the topology. So, it is not known at compilation time. But as soon...
View Article[akka-http] The http server closed the connection unexpectedly before...
I have 2 containers, using docker command --net host , the akka application in a container, makes request to another container(a file server using nginx) . The error information is:...
View ArticleUnable to compile akka-sample-kafka-to-sharding-scala project in my local
Hi Team, I am trying to setup akka-sample-kafka-to-sharding-scala project in my local and but I am getting an error saying sample.sharding.kafka.UserServiceClient...
View ArticleDeveloping a peer-to-peer system with akka cluster
Hi, Is it feasible and advisable to develop a software system wherein computers interact with each other using akka cluster, and no intermediate server. For something like, a software which enabes...
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Akka-HTTP Request-Level Client-Side API creating too many threads
Hello! First, since I’m new here, I can’t post all the evidence (images) for this question. I’ve already asked in Stack Overflow, without getting any answer so far. Further screenshots of the observed...
View ArticleGetting Pool is now shutting down message from akka when using SNS publish...
I have a few streams that wake every min or so and pulling some docs from the DB and performing some actions and in the end sending messages to SNS. the tick interval is every 1 min currently. every...
View ArticleAkka Mangagement 1.08 - Kubernetes Lease & Kubernetes Deployment Guide
We’ve released Akka Management 1.0.8. The two main features: Deployment guide for Akka Cluster on Kubernetes Akka Coordination Lease for Kubernetes API server The lease was previously closed source...
View ArticleGrouping and merging sorted Streams
Hello, Given a type A that has a property A.location, I have some streams that emit objects of type A such that A.location is always in ascending order, but there may be some consecutive objects that...
View ArticleAkka Projections 0.2 released
Dear hakkers, We’re happy to release another milestone of Akka Projections, version 0.2. The API is still under development and might change for upcoming milestones. Feedback, bug reports and feature...
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Akka 2.6.6 released, now including Split Brain Resolver
Dear hakkers, We are very excited to announce Akka 2.6.6, which now includes Lightbend’s Split Brain Resolver. Check out the full announcement over at akka.io akka.io Akka 2.6.6 Released We are...
View ArticleResearch Papers for Akka
Hi, I am reading this paper: Scala Actors: Unifying thread-based and event-based programming (Haller, Osdersky) I know that Akka has replaced the original actors implementation. Are there any research...
View ArticleAkka Persistence JDBC 4.0.0 released!
Dear Hakkers, The Akka contributors are happy to announce Akka Persistence JDBC 4.0! This is the first major release since the project joined the Akka organisation. Highlights of the release: Use...
View ArticleUse a single source multiple times
I have a requirement where a file is uploaded by the end-user and it has to stream to two different services. I tried with pre-materialize, that didn’t work. Is there any API in akka-stream ? or...
View ArticleAlpakka 2.0.1 released
Dear Hakkers, The Alpakka contributors are happy to announce Alpakka 2.0.1. This is a patch release after Alpakka 2.0.0 which we released in the end of April. New Connector: AWS EventBridge AWS...
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