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How to create singleton parent actor?

@syadav wrote: Hi, I am new to Akka and developing a spring boot application integrated with Akka. I have a root actor, which has few child actors. This root actor is the one which receives all the...

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Akka.cluster.metrics.native-library-extract-folder refers to $user.dir

@surendarchandra wrote: For some reason, I don’t have user.dir and so I get: com.typesafe.config.ConfigException$UnresolvedSubstitution: reference.conf @...

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Akka HTTP 10.1.10 released

@raboof wrote: Dear hakkers, We are happy to announce the 10.1.10 release of Akka HTTP. This release is the tenth update in the 10.1.x series of Akka HTTP. Migration notes RFC 7231 dictates an HTTP...

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ServiceKey variance

@schernichkin wrote: Should not it be contravariant in it’s argument to match ActorRef variance? Posts: 2 Participants: 2 Read full topic

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Failure-detector.acceptable-heartbeat-pause does not seem to work

@weicheng113 wrote: Sorry, ignore this for now. Maybe I made a mistake. Hi I am running a cluster in AWS EC2 enviroment. I was trying to increase acceptable-heartbeat-pause of cluster...

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Unsubscribe from receptionist events

@schernichkin wrote: I want to listen for receptionist events for limited amount of time than unsubscribe from it. Will stopping listening actor (by using Behaviors.stopped) be enough? How do...

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Flat json with Akka Stream

@jonatasfreitasv wrote: Hello guys, I’m using Play Json to work with json data. with Akka Stream I have this input: { "sku": 0, "buffer": 0, "consistency": 0, "inner": 0, "stores": [ { "store": 1,...

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Allocation hotspots of akka-client

@flschulz wrote: Hello, in one of my applications I’m using the akka-http client and a few days ago I did some load testing and profiling to see, which components are doing most of the allocations and...

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Akka 2.6.0-M8 released

@patriknw wrote: Dear hakkers, The eighth development milestone for Akka 2.6 is out. It would be excellent if you can try the milestones out and give us feedback. We intend to publish the first...

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HTTP Management and health checks

@lay wrote: I am using the HTTP Management in an existing HTTP server adding the routes in the following way:...

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Error kernel pattern and scheduler

@freedev wrote: Hi All, I have implemented the error kernel pattern in a sample I was trying to create. The idea was to create a conversation between 3 actors but one does not respond immediately, you...

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`majority-min-cap` default value

@asavelyev wrote: We in our team are currently thinking if we dare to change the default setting akka.cluster.sharding.distributed-data.majority-min-cap = 5 Set in config...

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Amazon MSK (Kafka) and Alpakka-Kafka

@scotartt wrote: Hi guys Are there any traps, gotchas, or caveats I need to watch out for if I’m going to use the Alpakka Kafka connector with the Amazon MSK product (which is the AWS-managed Kafka...

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Alpakka Kafka 1.1.0-RC2

@ennru wrote: Dear hakkers, We are happy to announce Alpakka Kafka 1.1.0-RC2. We are bumping the minor version number because of the changes to the internals of how offset commits are sent to the...

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Mute log warning when Connection attempt failed

@MeniSamet wrote: Hi, We use Akka HTTP for the client and getting log warning Connection attempt failed. Backing off new connection attempts for at least XXX milliseconds. Since we have a monitoring...

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Stream framing without delimiter or length field

@ecartner wrote: My apologies if this a silly question. I’ve searched and searched without any luck. Maybe my search term skills are lacking. I want to take a stream of bytes and convert it to a...

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Kafka streams creating multiple producer threads

@kolapkardhaval wrote: I am running alpakka kafka producer in akka stream and multiple producer processes are getting run: “kafka-producer-network-thread | producer-20” #49 daemon prio=5 os_prio=31...

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Streaming text over http from a Source.tick

@dleacock wrote: I’m creating small demos to develop my understanding of streaming objects over http using akka. My end goal is a route that streams a generated object (an image from a webcam to be...

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Constructing Akka HTTP requests for JSON Lines

@huntc wrote: The doco is fabulous when explaining how to unmarshal a stream of JSON Lines object from an HTTP response using Spray JSON, but I couldn’t find anything on marshaling when constructing a...

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Cannot extract the lastSequenceNumber

@pawelkaczor wrote: Hi, In some rare circumstances (I haven’t investigated it closer) I’m getting the following error when calling EventSourcedBehavior.lastSequenceNumber:...

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