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PostgreSQL Administration Cookbook, 9.5/9.6 Edition - Third Edition

You're reading from PostgreSQL Administration Cookbook, 9.5/9.6 Edition - Third Edition

Product type Book

Published in Apr 2017

Publisher

ISBN-13 9781785883187

Pages 556 pages

Edition 3rd Edition

Languages

Concepts

Database Administration

Table of Contents (13) Chapters

Preface

1. First Steps

2. Exploring the Database

3. Configuration

4. Server Control

5. Tables and Data

6. Security

7. Database Administration

8. Monitoring and Diagnosis

9. Regular Maintenance

10. Performance and Concurrency

11. Backup and Recovery

12. Replication and Upgrades

Performance and synchronous replication

We usually refer to synchronous replication as simply sync rep. The sync rep allows us to offer a confirmation to the user that a transaction has been committed and fully replicated on at least one standby server. To do that, we must wait for the transaction changes to be sent to at least one standby, and then have that feedback returned to the master. The additional time taken for the message's round trip will add elapsed time for write transactions, which increases in proportion to the distance between servers. PostgreSQL offers a choice to the user as to what balance they would like between durability and response time.

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