This posting is somewhat related to my earlier topic titled “Recovery following node failure”, which focused on replay of event following processor failure due to VM crash. Even though this question is related to the topic of recovery from failure, it is framed in context of on-the-fly redistribution of failed event. Please, excuse some duplication here... We are building large CQRS system utilizing Akka-persistence with cluster sharding in akka-contrib, deploying multiple EventsourcedProcessors distributed on several cluster nodes. I’d like to know how to best redistribute an event in case of node failure. When the processor handling an event crashes along with the VM it is running on, how could we assure immediate re-distribution of the event to another healthy node? Assume that the event has been successfully persisted in the event store by the processor before failure occurred.
A) could this be done w/o restarting the failed node? Since the event was successfully persisted in the event store prior to crash, it would automatically be replayed upon node restart - assumption. B) if answer to A) is YES, could this be done w/o use of channels and/or confirmation? How else would parent actor know whether the event has been processed completely when node failure occurred? C) if failed processor completed its tasks partially before failure occurred, would automatic re-distribution of the event by parent actor or sharing coordinator be possible? If so, is there any support in akka for tracking progress of event processing (state of completion) by the child actor? Thanks in advance for your answer. Cheers, ~g -- >>>>>>>>>> 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.
