Replication

Dragonfly replication management API is compatible with Redis API and consists of two user-facing commands: ROLE and REPLICAOF (SLAVEOF).

If you’re not sure whether the Dragonfly instance you’re currently connected to is a primary instance or a replica, you can check by running the command:

Dragonfly supports Redis -> Dragonfly replication to allow a convenient migration of Redis workloads to Dragonfly. We currently support data structures and replication protocol of Redis OSS up to version 6.2. The instructions below apply to this type of replication as well with only difference that the primary instance is a running Redis server.

This replication process internally is vastly different from the original Redis replication algorithm, but from the outside, the API is kept the same to make it compatible with the current ecosystem.

If the server is already a replica of another primary, it will stop replicating the old server and immediately start synchronizing with the new one. It will also discard the old dataset.

To promote a replica back to being a primary, run the following command: