“Dead Letters encountered” error while running AKKA remote actors

Question

I am trying to run remote actors using AKKA, on my localhost, but each time I get this error. It says dead letters encountered. I searched on internet and found out that thi

Answer 1

I think I see a few issues with your code that might be leading to deadletters. First, if your intention is to lookup an actor on a remote system from actorSystem2 into actorSystem1, then you will still need to set up remoting properties for actorSystem1, most specifically, you need to make sure it's using the RemoteActorRefProvider. If you don't do this, system 2 will not be able to lookup a remote actor in system 1. Once you make this change, I would also change your remote actor lookup from:

val remoteActor = actorSystem2.actorFor("akka://actorSystem1@localhost:2209/user/simplisticActor")

to:

val remoteActor = actorSystem2.actorSelection("akka.tcp://actorSystem1@localhost:2209/user/simplisticActor")

The actorFor method has been deprecated and also I think you left off the .tcp part of the akka protocol for looking up the remote actor.

Make these changes and then see if things work for you.