This does not help if you want to use an external that ranger dose manage the install. ... View more

When I was looking at this I was looking at third party applications that are being made to plug into ambari. They require the hadoop group added but in some cases these third party applications would be manged by another team not on a core node. In those cases I would not like them to be in the hadoop group because that would give the other team access to all the keytabs on the servers. In short I found that this is configurable in ambari when adding the services. ... View more

Take a look at these: https://stackoverflow.com/questions/18477983/what-exactly-non-dfs-used-means https://community.hortonworks.com/questions/42122/hdfs-non-dfs-used.html ... View more

Hello, DFS used 2.3 PB will go up 2.6 PB Remaining 918.4 TB will go down to 918.1 non DFS should not change. let me know if you need more info. ... View more

What is your clusters replication factor? If your replication is 3X then 100 GB x 3 = 300 GB. 300 GB will be the about of hdfs storage used. ... View more

What do you do for the for the other 99% of the time when you get this error and DNS is not the isse? ... View more

In my case the data will be moved to HDFS via an ingestion process. We are looking to know if the user queries can be run as is or if they will need to invest a lot of time in doing changes to there code. ... View more