All Questions
10 questions
0votes
1answer
240views
Sharing akka actors on multiple backend instances
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) ...
- 117
2votes
1answer
159views
Placing case classes
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 ...
- 129
7votes
1answer
8kviews
akka and futures, which ExecutionContext should be used
Following this blog by @Tomasz Nurkiewicz we can see that 4 different approaches are available for picking the ExecutionContext, when interacting with akka actors, for scala futures to run on. import ...
- 219
1vote
1answer
1kviews
Polyglot Node.js with Typesafe Akka for Actor Model
I have a case that needs to manipulate a large stream of JSON and inject it into Apache HBase. Our system works on Node.js with Mongo then, since we need to enhance performance, so HBase is choosen to ...
0votes
1answer
153views
Actors in a sequential protocol handshake
I am new to actors and trying to implement a very sequential protocol handshake (over websockets). This is in Scala/Akka. It goes something like this: HTTPs connection is established then upgraded to ...
- 225
12votes
3answers
5kviews
What is a "lifted representation"?
Just ran across this term here: http://www.codemesh.io/codemesh2014/viktor-klang "We'll demonstrate the Flow API—a lifted representation—as well as a pluggable way of transforming the lifted ...
- 4,877
3votes
0answers
1kviews
ZeroMQ and Majordomo protocol
I am learning ZeroMQ and came across the Majordomo Protocol. I am wondering if I'm understanding this correctly, is the use case the same as.. for example.. the Microsoft Azure AppFabric service? ...
- 225
68votes
5answers
27kviews
When is it NOT good to use actors in akka/erlang?
I've been working with akka for 7-8 months now daily. When I started, I would be working on applications and notice that actors would be used basically anywhere once inside the actor system for ...
- 1,129
76votes
3answers
36kviews
What is the difference between a Future and a Promise?
What is the difference between a Future and a promise? (In Akka and Gpars.) They look the same to me as both block and return the value of the future when get is called and a promise is to get the ...
4votes
1answer
2kviews
Using akka actors with service spring beans
Do you think that using akka actors in front of transactional service beans, is a good idea ? Actors are waked up by a facade used by a client application, and actor use a message to handle right ...
- 305
