title: Heartbeat print on running R script via Oozie
body: <p>I was trying to run a R script on Oozie.
  Though the R script was triggered, the Oozie job kept printing Heartbeat in the stdout file, without proceeding further into the R-code.
  What may have caused it? Also, how to avoid the same?</p>
  <h3>Edit :</h3>
  <p>The script was supposed to read data from HDFS and a series of R scripts were supposed to be operating on the data to generate a json output.
  The script was triggered by the oozie workflow from command line.
  This oozie job is further planned to be exposed as an API.</p>
  <p>I have tried changing the scheduler to fair scheduler as mentioned in <a href="https://stackoverflow.com/questions/27653937/error-on-running-multiple-workflow-in-oozie-4-1-0/27855432#27855432" title="this">this</a> post, but still it didnt work.</p>