Basic Idea
Reduce database replication to Global Consistent Persistent Order (GCPO)
- Use group communication ordering to establish the Global Consistent Persistent Order on the actions.
- deterministic + serialized = consistent
GC membership + quorum = primary partition.
- Only replicas in the primary component can commit transactions.
- Actions ordered in a primary component are marked green and applied to the database. Actions ordered in a non-primary component are marked red and their commit will be delayed.