Use _akka-cluster_ and _akka-cluster-sharding_

[SebastianSchmidl]

Issue

Currently all actors are spawned in the same JVM. We should use akka-cluster to distribute the actors across multiple nodes/JVMs. Cluster sharding allows distributing actors across nodes of an akka cluster without knowing their physical location.

This will need an application.conf file for configuring remoting, seed nodes, persistance provider, ....

Keywords:

• actor migration (persistent actors need a distributed journal, state can be replayed, non-persistent actors lose their state)
• cluster, cluster roles
• shards, ShardCoordinator
• remoting

Problem Description

All state is hold in-memory and there is currently only one JVM in use. State of ADBMS Dactors will potentially get to big to fit into memory of one node (JVM).

Supporting Information

• akka-cluster
• akka-cluster-sharding