Issue with Custom DurableStore in Akka Cluster: Deserialization Error for...
Issue with Custom DurableStore in Akka Cluster: Deserialization Error for DurableDataEnvelope I’m working on a custom DurableStore implementation in Akka Cluster using Java. My goal is to persist...
View ArticleCustom GraphStage
Hi, I’m thinking about using a custom GraphStage like the following: case class MapAsyncErrorUnordered[In, Out](parallelism: Int, f: In => Future[Out]) extends GraphStage[FanOutShape2[In, Out,...
View ArticleAkka license key
Today we have released new versions of Akka (2.9.6, 2.8.7, 2.7.1) that require a license key for use in production. Read about the motivation in the blog post Akka License Keys && a No SPAM...
View ArticleAlpakka S3 connectors for Parquet files
Hi Team We are stuck and need your help. We are reading a PARQUET file used ParquetAvro Connectors from HDFS override def streamParquetFileAsAvro(filePath: String): Source[GenericRecord, NotUsed] = {...
View ArticleInquiry about Akka Cluster Malfunction Issue
Akka Version - Implementation-Version: 2.5.17 -rw-r--r-- 1 add add 47695 5월 5 2017 com.enragedginger.akka-quartz-scheduler_2.12-1.6.1-akka-2.5.x.jar -rw-r--r-- 1 add add 96013 11월 12 2016...
View ArticleAkka Persistence Db Query error during AWS Instance type upgrade
Hi, We upgraded our AWS RDS instance type that we use for our Akka Persistence Db. We use Slick jdbc driver on top. The steps are: 1. Spinup new db type and set as Read replica of the current...
View ArticleAkka Persistence warmup
Hi, I’m using k8s to run an akka cluster with persisted sharded entities. After rollup update I can see the first interaction with actor triggers the following logs: akka.persistence.Persistence:...
View ArticleWhat is the purpose of GetLastOffset
akka-edge rust implementation has offset-store. It has GetLastOffset GetOffset and SaveOffset What is the purpose of GetLastOffset. How is it used to pause/resume or crash/resume scenarios? 1 post - 1...
View ArticleBest way to pause an actor command and retry it without blocking the actor
hello, I am trying to find the best way to pause an actor command and retry it without blocking the actor itselt. Basically events are filling a hashtable and I need to wait until a specific index of...
View ArticleAlpakka SE3 Connectors support with Ceph
Hello Fellow Engineers, I am having a basic question, currently we are using Alpakka S3 connectors with Cloudian S3, do we support Ceph as well Thanks, Susmit 1 post - 1 participant Read full topic
View ArticleAlpakka S3 Connectors For Parquet File format
Hi Team Which API to use to upload a large parquet file to S3 I tried AlpakkS3.multipartUlpoadApi but its converting the parque to ByteString Then I moved to S3AvroParquetWriter Can we use...
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Why the remote Akka nodes become unreachable however the network is reachable?
Hi, I would like to rebuild my ODL clusters on the overlay network. the cluster before: these nodes connect each other on the underlay network(11.128.85.27, 11.128.85.58, 11.128.85.79), and the...
View ArticleAlpakka connector
Hi, I am very new to Apache Kafka and kafka stream. I have a few questions: Does Apache Kafka Server has built in alpakka kafka connector My Javascript application sends messages (producer) to Apache...
View ArticleBest Practices for Scaling Akka Actors in a High Throughput System
Hello Akka community, I’m currently working on a high-throughput system using Akka, and I’m seeking advice on best practices for scaling Akka actors in a way that ensures both performance and...
View ArticleBuild akka 2.6.9
How to build Akka 2.6.9 by using the source code in the Github. I try to build it, but it can not get some plugin dependencies in JFrog. Has anyone encountered this issue? 2 posts - 2 participants...
View ArticleContinue buffering new messages when underlying persistence plugin throw ex
I have some eventSourcedBehaviour setup as a cluster. And im uisng r2dbc plugin with postgres for both the journal and snapshot. when I simulate the failure of postgres(by switching it completely...
View ArticleDowning an unreachable node via akka management doesn't solve the unreachability
Hello, we have a cluster of 5 nodes and we use akka 2.8.6. We do not use the auto-downing feature but instead we down unreachable nodes via akka management. Today a node in our cluster became...
View ArticleActorCluster bootstrap not starting properly ....
When i tried to implement a ActorCluster formation with akka 2.5.32. I have used akka-discovery_2.11-2.5.32.jar akka-http_2.11-10.1.15.jar akka-management_2.11-1.0.10.jar...
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Why/When would EventsByTagStage receive multiple pubsub notifications within...
We are using akka-persistence-cassandra v0.103 with the following configurations cassandra-journal.pubsub-notification = 3s cassandra-query-journal.refresh-interval = 10s...
View ArticleAlpakka google-cloud-pub-sub for Scala 3?
Is that in the plans? 3 posts - 2 participants Read full topic
View ArticleLicense key within Playframework
Hello there, We are (finally) migrating to Akka 2.10+ in our web application backed by Playframework. Unfortunately, we do have a strange behavior with the akka.license-key configuration. We can give...
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Akka Memory Leak Issue
I’ve observed that the memory usage of the Akka Cluster nodes continuously increases, which eventually leads to pod restarts after a certain period. I can clearly see this trend while monitoring the...
View ArticleA problem with cinnamon instrumenting akka streams
Hi, I’m using cinnamon for collecting metrics from akka streams and faced a weird behavior of the cinnamon library when RestartSource, RestartFlow or RestartSink is used. Basically the problem is that...
View ArticleIssue with EventProducerSource in app with many event sourced entitites
Hello, I’m developing the Akka application using Event Sourcing in Cluster and Projections. I started the project using the examples given in Akka’s examples on GitHub. This is how the project looks:...
View ArticleOptional scalapb serialization binding breaks existing mapping
Hi there, related to this feature in 2.9.0 release: feat: Optionally include serialization binding for ScalaPb by patriknw · Pull Request #32070 · akka/akka · GitHub I see that starting from akka...
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