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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

Multinode architectures

Multinode architectures allow users to write data to multiple nodes concurrently. There are two main categories: tightly coupled and loosely coupled:

  • Tightly coupled database clusters: These allow a single image of the database, so there is less perception that you're even connected to a cluster at all. This consistency comes at a price—the nodes of the cluster cannot be geographically separated, which means if you need to protect against site disasters, then you'll need additional technology to allow disaster recovery. Clustering requires replication as well.
  • Loosely coupled database clusters: These have greater independence for each node, allowing us to spread out nodes across wide areas, such as across multiple ...
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Publisher Resources

ISBN: 9781788474924Supplemental Content