ProcessManager/Saga docs and samples

Would be great to extend example module with sample ProcessManager code. Maybe showcase several aggregates/entities and process manager in a real world scenario.

[johnbywater]

Sorry for the delay. I’ve been changing the Process doc quite a lot. I tried to make it as good as I can.

Would be great to get some feedback about it. Maybe it’s more readable now?http://eventsourcing.readthedocs.io/en/latest/topics/process.html

Since you were asking about actors, I wanted to say: There’s an incomplete section at the bottom of that doc, about using an actor model framework to orchestrate processing. If you are still interested, perhaps we could work on that together?

I keep returning to the Thespian library, which claims to run actors across a cluster.

It would be great to have a Docker image that can be used in an auto-scaling cluster, something that automatically starts an actor system that runs an event sourced processing system. The actor system could then run the process applications.

Not sure if the Actor system would need to be supervised by e.g. Kubernetes, or if there should be a “leader election” amongst nodes to decide which node runs the Actor system and which nodes follow. If there needs to be a leader election, then perhaps Raft would be sufficient for that?

Basically, it would be great to have something into which people can drop in their aggregates and policies and system definition, and then deploy and have a running, auto-scalable, event-sourced event processing service. It doesn’t have to be the best actor implementation and Docker file ever. But if we could get something working, then we would finally have a spike solution that stretches all the way from event storming, through domain modelling, to a distributed, auto-scaling event processing service.

Hope you’re well.

[vladimirnani]

Very good read. Thanks!

Going to play around with it in bit.