Hi Patrick, In a situation with a lot of (Eventsourced)Processors and having a View to store certain (view) state into a database (or other storage), You need to take care of the way connections to these storage are managed, especially when it is used together with cluster sharding.
A single view that is able to proces the events per node (or for multiple nodes) allows for an easy construction of a CQRS style view model and allows me to use that same actor to ask for the view data. (this is how it's done with the Axon framework) Let's assume that I need this functionality, in what way would you change the persistence code to support this ? It seems that my other option is to create a distributed publish subscribe mechanism using channels in order to aggregate the data, but I prefer to construct it in a way that's inline with the way persistence works / will work. Kind regards, Olger On Tuesday, April 15, 2014 9:44:51 PM UTC+2, delasoul wrote: > > Hello, > > problems using a view for multiple processors have been discussed before, > e.g.: > https://groups.google.com/d/msg/akka-user/Tb1Qqh4ZMmo/ssqiBEQ_Eb0J > It would still be a great feature to have though(when you need an > aggregated view on events of multiple processors). > The solution to send the events from views to an aggregator still leaves > me with the question why then use a view at all and not just send the > events from > the processor to the aggregator directly? When using a view in the > "middle" one has to deal again with not sending duplicate messages to the > aggregator when views > replay, persistence(if needed) of the aggregator, losing messages etc. or > am I missing smthg? > > michael > > > > > > > > On Monday, 14 April 2014 16:42:08 UTC+2, Chanan Braunstein wrote: >> >> Entered: https://github.com/akka/akka/issues/15004 >>> >>> -- >>>>>>>>>> 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.
