- a total order per persistenceId based on sequence numbers (= partial ordering in the "all events" stream) is a must have IMO. - ordering based on timestamps should be an application level concern (= timestamps in application-defined events and (re-)ordering done by application) Agreed, seqNrs are at our core and we’ll stick to them (partial ordering will be in for sure, was thinking if more was needed by app implementors). Bringing in timestamps “in some case” would be inconsistent with the rest of persistence anyway, so pushing it into user land sounds good.
Actually, since we want to expose this as reactive streams the timestamp ordering could be expressed as `merge(streams, userLandProvidedOrdering)` (we don’t have this yet)… Tempting idea, looking forward to trying out different things there. - mid/long-term goal: causal ordering (allows moving from eventual consistency to causal consistency). See also Don't Settle For Eventual Consistency. Thanks! Have not read that one yet - looks very interesting. Will catch up with it today :-) — k -- >>>>>>>>>> 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 akka-user@googlegroups.com. Visit this group at http://groups.google.com/group/akka-user. For more options, visit https://groups.google.com/d/optout.
