title: Convert JSON to ORC [AWS]
body: <p>This is my situation: 
  I have an application that rotates json files to an s3 bucket. I would need to convert those files in ORC format to be consulted from Athena or EMR.
  My first attempt was a lambda programmed in Node, but I didn't find any module for the conversion. 
  I think it can be done more easily with GLUE or EMR, but I can not find a solution.</p>
  
  <p>any help?</p>
  
  <p>Thanks!</p>