Description not filled in by author. Very likely personal repository for testing purpose, which you should not use.
sudo curl -sL -o /etc/yum.repos.d/hnakamur-carbon-relay-ng.repo https://copr.fedoraproject.org/coprs/hnakamur/carbon-relay-ng/repo/epel-7/hnakamur-carbon-relay-ng-epel-7.repo
sudo yum install carbon-relay-ng
The following unofficial repositories are provided as-is by owner of this project. Contact the owner directly for bugs or issues (IE: not bugzilla).
|EPEL 7||x86_64 (0)*||EPEL 7 (185 downloads)|
* Total number of packages downloaded in the last seven days.
External Repository List
The following repositories are accessible during builds