title: Storm - DRPC versus Transactional versus Trident - When to use what?
body: <p>Trident seems to have deprecated DRPC and Transactional Topologies. And its also not so clear why a regular topology cannot do what a DRPC Topology would do. Whats the specialty with DRPC Topology? </p>
  
  <p>Can somebody explain when to use DRPC, Transactional, Trident?</p>
  
  <p>Any help appreciated</p>