Logical Replication

MonkDB supports publication/subscription style logical replication between clusters.

Key operations

• CREATE PUBLICATION
• CREATE SUBSCRIPTION
• ALTER PUBLICATION
• ALTER SUBSCRIPTION
• DROP PUBLICATION
• DROP SUBSCRIPTION

Use cases

• Cross-cluster reporting consolidation.
• Geo-distributed read replicas.
• Staged cutovers between source and target clusters.

Basic flow

1. Create publication on source cluster.
2. Create subscription on target cluster with connection info and publication set.
3. Validate lag/state in system metadata.