Ganglia Metrics on HDP2.2 dont show

Hi,

I have successfully installed HDP 2.2 on RHEL 6.5 on ec2 instances using Ambari 1.7. However I cant seem to get Ganglia metrics for my cluster hosts. (Kafka,Storm Datanodes HBASe master etc).
Only HDPSlaves seems to be installed. How exactly does Ambari setup the conf directories on each host for ganglia, At the moment the only machine that seems to get the “master configuration” is the one hosting the Ganglia Server?

Do I have to manually create slave configurations on each host?

Thanks