Hi Patrik,
  thanks for the reply.

I think that is included in the documentation: 
> http://doc.akka.io/docs/akka/2.4.1/scala/cluster-sharding.html#Graceful_Shutdown
>
> val region = ClusterSharding(system).shardRegion("Entity")
>

Doesn't this mean I must know the entity name at the very least? Plus, how 
do I know that that entity is on or related to a given (i.e. known) cluster 
node?

I agree that, if I have an entity and I know it is on "this" cluster node, 
then I can retrieve the local shard region. But what if I don't have that 
information? i.e. all I have is the actor system (thus cluster etc.) and a 
cluster node address?
 

> You might find this useful also, to exit the jvm as the last step: 
> http://doc.akka.io/docs/akka/2.4.1/scala/cluster-usage.html#How_To_Cleanup_when_Member_is_Removed
>

Yup, definitely useful - once I have the local shard region for a given 
cluster node address. 

Hope that clarifies my question,

  Carl.

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