I want to setup DR of entire hadoop cluster which should replicate in real time. The current version is CDH 5.3 with
Namenode HA and 5 datanodes with replication factor 3.
Most of the time what you ask is out of question for budget reason.
That said, you should look at the following things for helping you design your DR cluster :
- Cloudera BDR (for replicating hdfs and hive)
- HBase replication or ExportSnapshot (for HBase)