Basically Hadoop is a open source distributed processing framework which is owned by Apache software foundation. We have various distributions of Hadoop like Cloudera, MapR and Hortonworks.Apache Hadoop is the base version and companies like Cloudera, MapR, Horton works took the vanilla version of Hadoop and added some features related to UI, security, monitoring etc and then they have released their own Hadoop distributions.
Important from Mondinion.com!
Never pay any "deposit fee" or any other "fee" just to view a property! Any owner / agent who asks you to pay anything by Western Union / Money Gram should be immediately reported to us.