Hi Gerd, Thanks much for your valuable inputs. I can store the files directly in HDFS as you said.Say if I am using Apache Spark for processing the files (already we have our application in java for processing the files) , can we Integrate our existing java application with Spark believe that is very hard and needs a huge code change. Any high level suggestions on how to integrate this. Thanks Sathiyanarayana kumar. N ... View more