title: Multiple jobs or multiple pipelines in one job in Flink
body: <p>I have a use case where I want to run 2 independent processing flows on Flink.
  So 2 flows would look like </p>
  
  <p>Source1 -> operator1 -> Sink1</p>
  
  <p>Source2 -> operator2 -> Sink2</p>
  
  <p>I want to re-use the same Flink cluster for both flows. I can think of doing this in 2 ways:</p>
  
  <p>1) submit 2 different jobs on the same Flink application</p>
  
  <p>2) Setup 2 pipelines in same job</p>
  
  <p>I was able to setup the first option, but not sure how to do the second option.
  Has anyone tried such a setup before? 
  What is the advantage of one over the other?</p>