Description of problem:
When setting up collectd on hosts via engine script /usr/share/ovirt-engine/setup/ansible/configure_ovirt_hosts_for_metrics.sh
collectd fails to start due to missing dependency rrdtool. 

Version-Release number of selected component (if applicable):
collectd-rrdtool-5.7.0-2.el7.x86_64
collectd-5.7.0-2.el7.x86_64
rhevm-4.1.0.3-0.1.el7.noarch

How reproducible:
100%

Steps to Reproduce:
1. run /usr/share/ovirt-engine/setup/ansible/configure_ovirt_hosts_for_metrics.sh on engine
 

Actual results:
TASK [collectd : Enable collectd] **********************************************
fatal: [**.**.**.**]: FAILED! => {"changed": false, "failed": true, "msg": "Unable to start service collectd: Job for collectd.service failed because the control process exited with error code. See \"systemctl status collectd.service\" and \"journalctl -xe\" for details.\n"}

looking into journal on host will show you its cause of missing dependency


Additional info:
WA: yum install collectd-rrdtool on hosts