Sometimes it could be desirable to replicate from a Galera Cluster to a single MySQL slave or to an other Galera Cluster. Reasons for this measure could be:
- An unstable network between two Galera Cluster locations.
- A separation of a reporting slave and the Galera Cluster so that heavy reports on the slave do not affect the Galera Cluster performance.
- Mixing different sources in a slave or a Galera Cluster (fan-in replication).
This article is based on earlier research work (see MySQL Cluster - Cluster …
