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Akka Streams and the number of actors created

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@Euqinu wrote:

Is there scaling and descaling of actors in Akka Streams?

Suppose I have a stream, which has an infinite source like Kafka topic and each data is computed and processed and finally sent to a database. There is no use of any async method in any flows.
So will the actors created in backend of Akka streams, scale up and scale down depending on the load. Like if there is huge data, more actors are created for the computation and processing and when the data is less, actors are again scaled down. Does something like this happen?

Or how much ever data is coming, the entire thing is processed by only one actor?Like, if the throughput of the data is 1000 tps or 200 tps, the stream runs on only actor. ?

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