I read the Akka documentation about actors and streams abstraction and I found it very enlightening and fascinating. The only aspect that I did not completely understood is what is the best approach to deal with massive states within actors. Let’s say I have a client application that shows all visible assets of a given type (e.g. connected products or sensors of some kind) for the currently logged-in user. The list of visible assets could be seen as the state of a persistent actor that manages the lifecycle of the assets for specific user / tenant. Now, this state is potentially very big and it could contains tens of thousands entries (i.e. tens of thousands of assets). If I got it right, this actor could be seen as a projection of a underlying event store that shows the list of user accessible machines. My doubts are: 1. Is this a suitable use case for Akka? Or Akka assumes that the state associated with an actor is small in size and lightweight? 2. The snapshots generated by the actor could be quite big: is this a concern in terms of serialisation to and from the underlying snapshot storage? 3. To solve snapshots ser/deser overhead one could avoid them all together. But in this case the portion of the journal that is used by the actor increases indefinitely. In this case I wonder what is the cost of recovering. I understand that there are a lot of "it depends" answers for these questions, but I would like to get the right principles to apply when dealing with these scenarios in Akka and the potential pitfalls. Thank you! matteo -- >>>>>>>>>> Read the docs: http://akka.io/docs/ >>>>>>>>>> Check the FAQ: >>>>>>>>>> http://doc.akka.io/docs/akka/current/additional/faq.html >>>>>>>>>> Search the archives: https://groups.google.com/group/akka-user --- You received this message because you are subscribed to the Google Groups "Akka User List" group. To unsubscribe from this group and stop receiving emails from it, send an email to akka-user+unsubscr...@googlegroups.com. To post to this group, send email to firstname.lastname@example.org. Visit this group at https://groups.google.com/group/akka-user. For more options, visit https://groups.google.com/d/optout.