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Akka 2.6.9- InboundHandshake exception
Implemented Remoting Artery TCP in Java Project in which getting below exception on the destination module. image1453×471 186 KB application.conf have below configuration artery { enabled=on...
View ArticleAbout ForkJoinPool
ForkJoinPool makes task more efficient by spliting task to more subtasks , similar to map-reduce. But if the logic of the task itself cannot be split into several subtasks, what is the point of using...
View ArticleAlpakka google-cloud-storage configuration
Hi, I would like to use Alpakka to materialise my stream on GCS. It seems that for authentication we need to provide private key in config file. Rest of my code use service login to silently...
View ArticleMessage was not delivered log entries in cassandra persistence plugin
Hi, I’m using Akka Persistence 2.6.10 with Cassandra persistence plugin 1.0.1 I noticed that my logs are full of the info messages of the following form: “level”:“INFO”...
View ArticleDoes Akka compile with Scala-Native?
Hi, Just a quick question- does Akka compile with Scala Native and is there any known issue with that combination? Thanks! 1 post - 1 participant Read full topic
View ArticleMultiple graphs with webhooks
Hello, sorry if this is a very basic question; i tried reading docs on Akka Streams site but the more i read the more confused I am with the alternatives to choose. I think the question is simple:...
View ArticleSupervised behavior that will send a message to the parent when child is...
Hi, Is there a way to configure the supervising behavior for a child in akka-typed, in order for it to send a specific message to its parent everytime before the child is restarted? Right now, we can...
View ArticleDatagramChannelCreator/UdpMessage setting TTL for multicast JAVA
I am trying to get multicast TTL set for akka.io.UdpMessage. I have tried setting socket options after the bind, but this has done nothing to change the TTL for sent packets. I need a TTL greater than...
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Why is the SFTP connector so much slower than the basic SFTP client
I’m using this sample class to test out streaming over SFTP. What I ultimately want to do is use a sink which is another SFTP server and stream from source(sftp server A) to sink(sftp server B) with...
View ArticleHow to shutdown a dynamic stream in MergeHub
Hi, I can not shutdown a dynamic stream in MergeHub. A code example is bellow val consumer = Sink.foreach(println) val mergeHub = MergeHub.source[JsValue](perProducerBufferSize = 16) val...
View ArticleUsing DirectoryChangesSource recursively
We are trying to use the the DirectoryChangesSource to monitor directory changes but having some issue with it where we found no solutions yet in the documentation. The directory structure: dirA **...
View ArticleWill limited typed router functionality (compared to classic) be extended in...
We investigate if it is possible for us to migrate from classic actors to typed actors. One obstacle is our usage of classic pool router SmallestMailboxPool with resizer...
View ArticleAlpakka Kafka 2.0.6 released!
Dear hakkers! We’re happy to announce a patch release Alpakka Kafka 2.0.6. Most central is the upgrade to TestContainers 1.15.1 in the Alpakka Kafka TestKit. Find the details in the Release Notes....
View ArticleSeparate instance of Flow per substream when using groupBy
Hi! I have a question about akka-streams , especially groupBy and state in substream I have a stream source .groupBy(maxNumberOfSubstreams, _.hashingId)...
View ArticleHow to get time left on a actor timer?
Hi, I couldn’t find info on this in the documentation or in another questions. Inside an actor that implements AbstractActorWithTimers I start a timer with:...
View ArticleAkka Persistence Cassandra - unrecoverable failures, tag_writes buffer grows...
Context: the database we’re using only handles insertion batch sizes of 100. We are getting into scenarios where our tag_writes buffer appears to be growing at a crazy rate and we’re unable to recover...
View ArticleAlpakka jms consumer throttle option
Hello, We are using Alpakka jms consumer (“com.lightbend.akka” %% “akka-stream-alpakka-jms” % “2.0.2”). We are facing a few challenges with our design. Background : Our microservice has alpakka jms...
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How to get materialized value of a Flow you don't control?
If I’m breaking any rules by posting this, I’ll take it down. Sorry, I’m just very curious to know the answer for this. I asked a question like this recently on StackOverflow but wanted to know if I...
View ArticleExplicit throughput limiting on part of a stream
Hi all I have a flow in our system which reads some elements from SQS (using alpakka) and does some preporcessing (< 10 stages, normally << 1 minute in total). Then, the prepared element is...
View ArticleCluster Sharding messages to /system/sharding/replicator not delivered
Akka version 2.6.10 Components: akka-management_2.12 akka-management-cluster-bootstrap_2.12 akka-discovery_2.12 akka-discovery-aws-api_2.12 akka-cluster_2.12 akka-persistence-typed_2.12...
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