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How to see the buffer usage

@sigurd wrote: Hey guys, Akka stream has a nice feature, the buffers (with backpressure). source() .buffer(1000, OverflowStrategy.backpressure()) It works pretty good but sometimes it is hard to...

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Akka http's withMaxConnections setting not working within RetryFlow.withBackoff

@surendheran wrote: Hello, I have a use-case to retry on certain http response using RetryFlow.withBackoff feature in akka streams. In addition I have applied withMaxConnections to 15 in Akka http’s...

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Mutable State in conflateWithSeed functions

@gabor-aranyossy wrote: I understand that conflateWithSeed was meant to be used with a fold-style pure function application, but I was wondering whether it is safe to use a mutable data structure to...

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Node stuck in Leaving after deploy

@jzelayeta wrote: Hey guys, we have a cluster with 3 Nodes and using Rolling-Update as deployment strategy. Current version of akka is 2.6.3 and for management is 1.0.5 The situation goes like this:...

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Blocking IO dispatcher without a BatchingExecutor

@ncreep wrote: Hi, I’m trying to set up a dispatcher that will be used exclusively for blocking IO and I seem to be having troubles with that. As far as I can tell, every dispatcher that I fetch via...

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onSignal not invoked

@mghildiy wrote: I have a parent actor which has death watch set on its children. There are 2 children of interest(apart from several others too). When a child of interest is stopped, and parent...

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About Akka Kafka Integration

@abhijeet3112 wrote: I am using Akka Streams to process the Kafka data from input topic and after processing send it to output kafka topic. My main requirement is to keep this whole process in real...

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On typed Actor interaction patterns

@fxgai wrote: I discovered Akka relatively recently, and after reading the great “Akka in Action” book and various other materials, I’ve finally been dipping my toes into some coding. I’ve skipped...

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Kubernetes Memory is constant

@abhijeet3112 wrote: I deployed my code to GCP kubernetes cluster. When I monitor the performance of my code the memory graph is steady and constant at a certain level. It does not change at all...

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Caching of actor refs? Am I asking for trouble?

@MakkaPakka wrote: I’m using a Google Guava LoadingCache to provide child actors. Is that a bad idea? Will some kind of nasty threading issue bite me in the backside if I continue with this strategy?...

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ActorSystem in ActorContext of BehaviorTestKit fails to register extensions

@shubhamJ wrote: We faced an issue while using the BehaviorTestKit, where the ActorSystem which is getting injected in the behavior being tested is not able to register extensions. It fails with...

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Reading data from Kafka in Akka Streams

@Euqinu wrote: Hi , I am reading data from a Kafka topic. After reading the data, some processing is done and pushed to some other Kafka topic. Basically, if the data is of type A then it will be...

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Alpakka Kafka 2.0.2 released

@ennru wrote: Dear hakkers! We’re happy to announce another patch release Alpakka Kafka 2.0.2 which fixes some more things that made it into 2.0. Most of these were discovered and fixed by...

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Alpakka 2.0.0-M3 released

@ennru wrote: Dear hakkers, Alpakka 2.0.0 is not very far away now, but to get things out we released 2.0.0-M3 today. Find the details in the Release Notes. We plan to change a few more things on the...

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Source.actorRefWithBackpressure vs Source.queue

@VictorBLS wrote: Hi everyone, i have a question here I want to publish incoming data dynamically into my stream and i found these two ways to do that and as far i can tell these two approaches can...

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Adding basic auth to all routes and how to seal() properly

@dleacock wrote: I’m trying to add basic authentication to all my routes and I’m noticing odd behavior. Looking around it seems that because I concat() the routes that it’s trying to next route...

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When hostname is set to "0.0.0.0", cluster seed node can't be connected, why?

@billxiao wrote: To config my Akka cluster, I’d like to use “0.0.0.0” to config hostname to avoid bother what specific local IP address is. But when I set hostname to “0.0.0.0” and set seed-nodes...

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Understanding the resolution and destruction of remote ActorRef

@shubhamJ wrote: I have a setup where I have a huge number of actors running which are spread across machines and a HTTP service which will talk to these Actors. The HTTP service resolves a...

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Kafka in place of Akka Streams

@hemnath wrote: Akka stream - mainly used for backpressure. That is faster publisher should not overload the slower subscriber. Consider I am getting stream of data and I want those to publish to...

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Default-blocking-io-dispatcher in Akka HTTP

@eugenemiretsky wrote: Hi, We run a pretty simple remote actor in an Akka cluster. There are 4 actors that get a request, make an HTTP call using Akka Http, do very basic map on the response, and...

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