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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

Monitoring replication

Monitoring the status and progress of your replication is essential. We'll start by looking at the server status and then query the progress of replication.

Getting ready

You'll need to start by checking the state of your server(s).

Check whether a server is up using pg_isready or another program that uses the PQping() API call. You'll get one of the following responses:

PQPING_OK (return code 0): The server is running and appears to be accepting connections.
PQPING_REJECT (return code 1): The server is running, but is in a state that disallows connections (startup, shutdown, or crash recovery) or a standby that is not enabled with Hot Standby.
PQPING_NO_RESPONSE (return code 2): The...

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