Index requirements

The Dgraph requires an index to store the contents of the data sets it can query. It's stored on a shared NFS, which all Dgraph nodes must have read/write access to. Note that at any given time, only one Dgraph instance, the leader, has write access.

You can install BDD with an existing BDD-formatted index if you have one you'd like to use. To do this, you must put it on the NFS before installing and update BDD's configuration file to point to it. For more information, see Configuring BDD.

If you don't have an existing index, the installer can create an empty one for you. This is also configured in BDD's configuration file.