Wonderful question, too bad noone answered this. We are handling something similar (upgrading to HDP3.1.5 from HDP2.6.5 in diffrent cluster - HBase 1.1.2 to Hbase 2.0.2). We asked this through Cloudera support and offered us same solution  - copyTable / syncTable but this can't be run from destination cluster (since the source cluster is in current production) so we're looking at snapshots solution, but we still need to identify if is feasible and the challenges implied... Any inputs from your experience? did you managed to do this migration/upgrade? Thank You! ... View more