ArangoDB v3.1 reached End of Life (EOL) and is no longer supported.
This documentation is outdated. Please see the most recent version here: Latest Manual
First of all, download and install the corresponding RPM or Debian package or use homebrew on MacOS X. You can find packages for various operation systems at our install section, including installers for Windows.
How to do that in detail is described in the subchapters of this section.
On how to set up a cluster, checkout the Deployment chapter.