Questions tagged [akka]

Question 1

After doing some research regarding the actor model, Im still not really sure what an actor actually is.. and what its supposed to "replace". From what I have understood an actor is supposed ...

Question 2

I have a web applications (angular) which is connected to backend using websockets. The role of web app is to display data from multiple sources (which are updated constantly by some Scala Spark apps) ...

Question 3

What are the drawbacks of sharing immutable state between actors in a non-clustered system? It's clear as to why a mutable shared state works against a lot of the guarantees that the actor model ...

Question 4

We have data in Kafka which we need to export to multiple destinations. Each message key is to be exported to one destination. A destination can be a REST endpoint, a file, a database etc. Each ...

Question 5

We have a Java Play Framework Application which we want to scale out into a cluster. The only issue is that there are services ran by the Akka Scheduler once per day, and we don't want these services ...

Question 6

I have been developing with Orleans actor implementation. Recently, I saw that we were scheduling a long running job on an actor, which was effectively blocking the actor since it couldn't process the ...

Question 7

I have an application say x which uses another Java library(say Y) as a JAR file . So y basically needs to download a file and load it into memory before any of it's methods are called at runtime by X....

Question 8

In a distributed asynchronous system serializability cannot be achieved, but we still have to somehow provide the semantics. Consider quite natural requirement that user must have unique email or no ...

Question 9

I need to create a distributed application with timers / periodically checking two timestamps for elapsed time. Is it possible to achieve following behaviour with the actor model: Spawn Child actor ...

Question 10

I'm new to AKKA and i can't figure out a general proper way to integrate a backend actor system with my WPF views. I studied a few examples i found (all very similar, probably based on this), but in ...

Question 11

I was reading Akka Persistance documentation and it says that Akka is good for Event Sourcing. Imagine I have a User entity. Each user is defined uniquely with ID and has some properties and some ...

Question 12

I know that transactions use locks. It is claimed that actors liberate us from shared state and locks make sure all crashes are the same as clean shutdowns: this can be done through practices such ...

Question 13

Now I'm trying to understand Actor model. I know main concepts like everything is an actor etc. I see a lot of words like "it's very good from performance point of view", "no locks because there is no ...

Question 14

If the supervisor and its child actors are sharing the same messages, which is the right place to keep those case classes? Should it be in both Supervisor and the individual actors or should it be in ...

Question 15

As I can see in recent releases of akka-http, successor of spray, spray-routing's approach of using shapeless HList was replaced in favor of self-included Tuple What is the motivation for this ...

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Questions tagged [akka]

Can the actor model replace a database?

Sharing akka actors on multiple backend instances

Shared immutable state between actors

Processing messages in parallel with Kafka & Akka

RMI vs APIs vs Akka Cluster

Does Akka support communication with external threads

Periodically update files from s3 in a Java maven library used as Packaged JAR

How to implement semantics of serializability in eventually consistent system?

Is the actor model suited for an application dealing with elapsed time?

How to integrate WPF and AKKA

Akka Event Sourcing - how to create Actor per Entity

Is the Actor Model an alternative to transactions?

Akka.Net - real scenarios of usage

Placing case classes

What is the reason behing Tuples instead of HList in akka-http

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