message - Use case for Akka PoisonPill -


according akka docs poisonpill:

you can send actor akka.actor.poisonpill message, stop actor when message processed. poisonpill enqueued ordinary messages , handled after messages queued in mailbox.

although usefulness/utility of such feature may obvious akka guru, newcomer, sounds useless/reckless/dangerous.

so ask: what's point of message , when 1 ever use it, reason?!?

we use pattern called disposable actors:

  • a new temporary actor created each application request.
  • this actor may create other actors work related request.
  • processed result sent client.
  • all temporary actors related request killed. that's place poisonpill used.

creating actor implies low overhead (about 300 bytes of ram), it's quite practise.


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