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Some info from 2nd Quadrant on what BDR is: https://2ndquadrant.com/en/resources/bdr/ https://2ndquadrant.com/en/resources/bdr/ Bi-Directional Replication for
by aembleton 10y ago
Some info from 2nd Quadrant on what BDR is: https://2ndquadrant.com/en/resources/bdr/ https://2ndquadrant.com/en/resources/bdr/
Bi-Directional Replication for PostgreSQL (Postgres-BDR, or BDR) is the first open source multi-master replication system for PostgreSQL to reach full production status, developed by 2ndQuadrant and assisted by a keen user community. BDR is specifically designed for use in geographically distributed clusters, using highly efficient asynchronous logical replication, supporting anything from 2 to more than 48 nodes in a distributed database.
- iLoch 10y ago> anything from 2 to more than 48 nodes in a distributed database Why specify a range if you're going to leave it open-ended?
- Eridrus 10y agoIt's good to know what range people have tested with, even if it's not a hard cap.
- kl4m 10y agoPossibly, it means that they have tested it with 48, and any more is left as an experiment for the daring. Just guessing.
- pestaa 10y agoI guess it means they reached production stability on 48 nodes, but there is nothing keeping you from adding more nodes if need be.
- pgaddict 10y agoYes, it means it was tested with up to 48 nodes. There's no hard limit on the number of nodes, but at the moment BDR uses full mesh topology (each node has connections to all other nodes), which becomes an issue as the number of nodes increases.