title: Producer/Consumer + Worker arch with Node.js/python
body: <p>We are having 2 components  1 Producer/Consumer, 2 Process</p>
  
  <p>Producer/Consumer is i/o incentive, and nothing but take web request and make entry to mongodb based on input params.</p>
  
  <p>Process is separate process (in python) which process data from mongodb and group(make pair) them.</p>
  
  <p>This pairing can take little time, and once pairing is done, we want to notify Node that for given connection, "Process is done", so node can send data back to client.</p>
  
  <p>I am not sure on  "How to notify Node's connection that process is done, and this is the output." </p>