https://community.cloudera.com/t5/Support-Questions/How-to-change-the-name-node-and-data-node-instance-types/m-p/192696#M154760 <P><A rel="user" href="https://community.cloudera.com/users/5019/ssubhas.html" nodeid="5019">@Sindhu</A> </P><P>Thank you for your reply. My case for production the data size is around 45 TB. Copy will take long time. Thought of copying online before stopping the cluster and services and assume it takes couple of days to complete and then stop the cluster &amp; Jobs and find last two days updated files / directories and copy them to new mount points. (Have to formulate small shell script to do this).</P><P>We cant stop and hold the cluster for 2 days to do the copy. Let me know if this is fine good? I will be testing the same in development and then move to production. </P> Thu, 19 Jul 2018 17:33:21 GMT muthukumar_siva 2018-07-19T17:33:21Z