I think @emaxwell already answered my other question. q: If a user have access to hdfs/hive (enabled thru Ranger), can they simply use presto as a access tool and access the data? Answer: You can control the HDFS and Hive services via Ranger to enable Presto to access those resources, ... View more

@Ramesh Mani: Thanks for jumping in. I have not installed Presto yet, I am preparing for it and trying to get answers to my questions. So in order for a user to work through presto to access HDFS/Hive there should be some global policies be created? am I understanding it correctly? this question might be related to my first one, If a user have access to hdfs/hive (enabled thru Ranger), can they simply use presto as a access tool and access the data? ... View more

Hello @emaxwell thanks for the quick response. My question now is, how is presto allowed to access hdfs and hive with Ranger standing between them? My understanding with Ranger is it is kind of gate keeper and you need to have a service to go through it.. can you help me here or direct me to a document which I can read..? another question.. what about the Presto auditing, Will Ranger show audit log related to Presto? ... View more