PostgreSQL BDR — Bi-Directional Replication

Bi-Directional Replication (BDR) is an asynchronous multi-master replication system for PostgreSQL, specifically designed to allow geographically distributed clusters. Supporting up to 48 nodes (and possibly more in future releases) BDR is a low overhead, low maintenance technology for distributed databases.

Источник: BDR | 2ndQuadrant.

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