[tetha]

> Doesn't quite make sense to me. Doesn't raft require the master to wait for a quorum before committing writes? I understood it as a pretty important aspect.

Different kinds of masters. I've forced myself to always include the application if terminology gets reused across applications in a discussion. As far as I understand this>

- The mysql-master only commits an sql-level-transaction if a mysql-replica acknowledges replication of the transaction. This avoids data loss during a failover.

- The orchestrator-nodes elect an orchestrator-master via raft mechanics.

- After this, the orchestrator-master starts pondering about the mysql-master / mysql-replica situation and potentially promotes the most current mysql-replica to mysql-master.

- This promotion requires writes on an orchestrator/raft level, which in turn requires the orchestrator-master to get an acknowledgement from the orchestrator-quorum.