To install the Data Warehouse on hosts running RHEL 7 or CentOS 7:
yum --nogpgcheck install http://downloads.eucalyptus.cloud/software/eucalyptus/4.4/rhel/7/x86_64/eucalyptus-release-4.4-2.8.as.el7.noarch.rpm
yum install eucadw
yum install postgresql91-server