Hi, I'm playing around a bit with cluster sharding and considering trying it for my new service prototype. Although it'll start with only one node and doesn't have any scalability issue yet, I found this actor-per-entity model with built-in passivation support very useful when implementing DDD with Akka.
It's very common in web applications that when a request comes in, the app checks whether requested resource exists and if not it returns 400 (Not Found) error. However, I couldn't found any way to ask for the existence of an entity to a ShardRegion. Currently, there are two possible workarounds: - Start each actor in 'empty' state by default. When a check message arrives before the state is changed by an explicit creation message, reply with negative result and stop the actor immediately. - Maintain global or per-cluster singleton registry. Or we might add a feature to ShardRegion checking the existence of an entity by its id. What do you think? Regards, Jisoo -- >>>>>>>>>> Read the docs: http://akka.io/docs/ >>>>>>>>>> Check the FAQ: http://akka.io/faq/ >>>>>>>>>> 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 [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/akka-user. For more options, visit https://groups.google.com/groups/opt_out.
