Actor Name is not Unique InvalidActorNameException - scala

Question

My environment is eclipse, play, akka, and scala. I am getting an error when trying to create a remote master akka actor.
I am not sure why I am getting this error:
[InvalidActorNameException: actor name hello is not unique!]
When the user submits their form, calculate is called:
options => {
this.calculate(options.numWorkers.toInt, options.numElements.toInt, options.numMessages.toInt)
//Redirect(routes.Application.)
Ok(html.form(this.optionsForm))
}
Here is the code where I create the actor
val master = RemoteSystem.system.actorOf(Props[Master], "hello")
I also only create one instance of this actor and have tried many other names such as master, Master, and master1983274612987346198356.
Master is defined as:
class Master extends Actor {
var pi: Double = _
var nrOfResults: Int = _
var start: Long = _
def receive = {
case calculate(numWorkers, numElements, numMessages) =>{
for (i <- 0 until numWorkers) {
val worker = RemoteSystem.system.actorOf(Props[Worker], "Worker")
for(j <- 0 until numMessages)
{
worker ! Work(0, numElements)
}
}
}
case PiResult(start, numTerms, acc) => println("Pi Result: " + acc)
}
override def preStart() {
start = System.currentTimeMillis
}
override def postStop() {
println(
"\n\tCalculation time: \t%s millis".format(System.currentTimeMillis - start))
}
}
And the actor system is:
object RemoteSystem {
val system = ActorSystem(
"RemoteCreation", ConfigFactory.load.getConfig("remotecreation"))
}
Where remotecreation is defined as:
remotecreation{
include "common"
akka {
actor{
deployment{
/Worker{
remote="akka://Pi#10.0.100.254:2552"
}
}
}
remote.netty.port = 2554
}
}

Answer 1

It seems in the following code that you are creating many workers with the same name "Worker":
for (i <- 0 until numWorkers) {
val worker = RemoteSystem.system.actorOf(Props[Worker], "Worker")
for(j <- 0 until numMessages)
{
worker ! Work(0, numElements)
}
}
You need to move the actor creation code (see this doc):
class Master extends Actor {
val worker = RemoteSystem.system.actorOf(Props[Worker], "Worker")
...
}