Followed the following instruction... (CentOS 7.4)
rpm -Uvh http://s3.amazonaws.com/geowave-rpms/release/noarch/geowave-repo-1.0-3.noarch.rpm

Then tried
yum --enablerepo=geowave search geowave-*

Yum returns errors unable to locate geowave/primary_db
[Errno 14] Https Error 404