title: is creating too many actors in akka bad?
body: <p>I am having a graph datastructure and i have vertices in graph.No of vertices are around  20K .Now I want to create a seperate actor for each node.this is because i want to perform some aggregations across nodes.</p>
  
  <p>There is a master worker which reads and sends messages to  worker at vertex.This worker than does some complex tasks.Hit db and stuff.</p>
  
  <p>Is it ok to create so many actors?</p>
  
  <p>If yes how many actors can be supported on a box with say 4 gb ram?</p>