| Item | Description |
| Yum Package Manager (yum) | A package management tool that fetches and installs software packages and performs automatic dependency resolution. See http://yum.baseurl.org/ for more information. |
| Local Mirror Repository | The yum repository hosted on your Local Mirror Server that will serve the HDP software. |
| Local Mirror Server | The server in your network that will host the Local Mirror Repository. This server must be accessible from all hosts in your cluster where you will install HDP. |
| HDP Repositories | A set of repositories hosted by Hortonworks that contains the HDP software packages. HDP software packages include the HDP Repository and the HDP-UTILS Repository. |
| HDP Repository Tarball | A tarball image that contains the complete contents of the HDP Repositories. |
