Postgresql- Bidirectional replication (BDR)

BDR, Bidirectional replication (BDR) is definitely a rising star in the world of PostgreSQL.

PostgreSQL’s bidirectional replication (Postgres-BDR or BDR) is PostgreSQL’s first open-source multi-master replication system to achieve full production status. BDR was developed by 2ndQuadrant, specially designed for distribution in different geographical clusters, using efficient asynchronous logical replication, and supporting any node with more than 2 to 48 nodes in the distributed database.