i think distributed pub-sub is what you need:
http://doc.akka.io/docs/akka/2.3.8/contrib/distributed-pub-sub.html
(somewhat hidden under 'External Contributions').
-Michael
On 12/23/14 08:33, Terry Heinze wrote:
Hi,
I'm just in the early stages of migrating a simulation that uses the
old Scala Actors to use Akka instead. The application generates a very
large pool of stateful actors that inter-communicate with each other.
The functionality in the cluster sharding example (the one the creates
blog posts) is quite close to what I need. What I haven't discovered
yet is an obvious way to let one actor in the cluster broadcast a
message to all of the other actors in the cluster (or a large subset
of the cluster) for affinity propagation.
I tried a simplistic approach of just sending to a masked path, but
that only sent the message to the actors that were on the same node
and not the entire cluster.
context.actorSelection("/user/sharding/MyPool/*") ! Notify(*"Hi, I was
just added"*)
It seems like I should be sending the message to the shard region
instead, but the examples I'm finding only show using an IdExtractor
to locate a specific actor in the cluster and not to the entire
cluster. The secondary shard region in the blog example stores a
subset of the cluster (the author listings) is basically the tactic I
use in the original simulation (an external mutable map of actor
references).
Is there a recommend way to implement broadcasting?
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