Companion Objects for Actor

[Sarit Seal]

Hi,

How does Akka ensure the actors are not garbage collected. I see the actors not vanishing even if it does not receive any message for a long time.

Regards

Sarit

[Akka Team]

Hi Sarit,

Actors are part of an internal hierarchy (basically the supervision hierarchy) so parent actors always reference their children, therefore preventing them from being GCed. There is a "root" which is referenced by the ActorSystem itself. This is why it is important to explicitly stop actors, otherwise they are not collected.

Of course there are other fine details, like the threadpools used, etc. but the above explanation is more or less correct.

-Endre

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Akka Team

Typesafe - Reactive apps on the JVM

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[dario...@me.com]

Hi Sarit,

that's because it's still being referenced in the actor system. 

Cheers,

Dario

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