> On Aug 5, 2014, at 19:33, ahjohannessen <[email protected]> wrote: > > "I'm not sure I understand this requirement. Do you ask for full ordering > among all events with the same tag? That is not possible for scalability > reasons." > > So, you do not think it is possible for a journal to maintain a logical > position per topic / tag ?
How do you define the order? Is it based on time stamps in the persistent actors? Is it based on some feature in the backend store? /Patrik > > "Time stamps, logical clocks, or such, have to be added to your own event > data." > > That requirement is exactly what makes akka persistence painful, almost > useless, in a DDD / ES / CQRS setup, because read side / > catchup-subscriptions currently require to maintain snr per persistentId. > > "The events will be in order per persistenceId (and there is a sequence > number per persistenceId)." > > That I am aware of and that is not enough in a DDD/ES/CQRS setup. > > I see no value in tags without ability to track offset pr topic / tag. > > -- >>>>>>>>>>> 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 http://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 http://groups.google.com/group/akka-user. For more options, visit https://groups.google.com/d/optout.
