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PostgreSQL 10 Administration Cookbook - Fourth Edition
book

PostgreSQL 10 Administration Cookbook - Fourth Edition

by Simon Riggs, Gianni Ciolli
May 2018
Intermediate to advanced content levelIntermediate to advanced
576 pages
30h 25m
English
Packt Publishing
Content preview from PostgreSQL 10 Administration Cookbook - Fourth Edition

Multimaster replication

An example of a loosely coupled system would be Bi-Directional Replication (BDR). Postgres-BDR does not utilize a GTM, so the nodes contain data that is eventually consistent between nodes. This is a performance optimization since tests showed that trying to use tightly coupled approaches catastrophically limits performance when servers are geographically separated.

In its simplest multimaster configuration, each node has a copy of similar data. You can update data on any node and the changes will flow to other nodes. This makes it ideal for databases that have users in many different locations, which is probably the case with most websites. Each location can have its own copy of the application code and database, ...

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Publisher Resources

ISBN: 9781788474924Supplemental Content