Since these are local messages (in same jvm) you can in practice rely on that they will be delivered.
Akka has this disclaimer of at-most-once also for local messages since you might be using a bounded mailbox, or the jvm may crash. In theory you can setup such subscriptions also with remote actor refs, but that doesn’t make sense. /Patrik tors 30 nov. 2017 kl. 17:44 skrev eugene miretsky <[email protected] >: > Hi, > > When subscribing to cluster events, for example: > cluster.subscribe(self, initialStateMode = InitialStateAsEvents,classOf[ > ClusterDomainEvent]) > > What are the message delivery guarantees? My understanding is that it is > at-most-once, and messages can get lost if the JVM is acting up. In that > case, wouldn't it be more reliable to schedule a periodic update of the > cluster state using cluster.sendCurrentClusterState(self)? > > I have looked at some example code (AutoDown > <https://github.com/akka/akka/blob/1e4e7cbba27726486bdf1e783b4cec710093fd04/akka-cluster/src/main/scala/akka/cluster/AutoDown.scala>, > Cluster Singelton Manager > <https://github.com/akka/akka/blob/6a464c474a2741beff54728d38fc18db5e64500f/akka-cluster-tools/src/main/scala/akka/cluster/singleton/ClusterSingletonManager.scala>), > and it seems like it assumes that all events will be delivered. > > -- > >>>>>>>>>> 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 [email protected]. > To post to this group, send email to [email protected]. > Visit this group at https://groups.google.com/group/akka-user. > For more options, visit https://groups.google.com/d/optout. > -- >>>>>>>>>> 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 [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/akka-user. For more options, visit https://groups.google.com/d/optout.
