You can use the CM -> HBase -> Configuration -> RegionServer Safety Valve (for hbase-site.xml) to make the HFile V3 property setting change, since there's no direct UI field for it. CM does separate client configs from server ones, to isolate and configure server specific items independently. This is better explained in the architecture docs at http://www.cloudera.com/content/cloudera/en/documentation/core/latest/topics/cm_intro_primer.html ... View more