In CentOS 7.2 using yum I installed collectd (collectd.x86_64 0:5.5.2-1.el7) I followed the instruction in the below http://www.tecmint.com/install-collectd-and-collectd-web-to-monitor-server-resources-in-linux/
It looks like it did not create /etc/collectd/collectd.conf folder. has there been a change in centos 7.2 or the collectd package? a third party tool is looking for this folder during installation.