Migrating from a Single Instance to a Cluster
Before migrating from a Single Instance to a Cluster,please read aboutSingle Instance vs. Cluster
To migrate from a Single Instance to a Cluster you will needto take a backup from the Single Instance and restore it intothe Cluster with the tools arangodumpand arangorestore.
If you have developed your application using a Single Instance_and you would like to use a _Cluster now, before upgrading your productionsystem please test your application with the Cluster first.
If both your Single Instance and Cluster are running on the samemachine, they should have distinct data directories. It is not possibleto start a Cluster on the data directory of a Single Instance.