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PostgreSQL High Availability Cookbook - Second Edition

You're reading from PostgreSQL High Availability Cookbook - Second Edition

Product type Book

Published in Feb 2017

Publisher Packt

ISBN-13 9781787125537

Pages 536 pages

Edition 2nd Edition

Languages

Concepts

High Performance Programming

Author (1):

Shaun Thomas

Table of Contents (18) Chapters

Title Page

Credits

About the Author

About the Reviewer

www.Packtpub.com

Customer Feedback

Preface

1. Hardware Planning

2. Handling and Avoiding Downtime

3. Pooling Resources

4. Troubleshooting

5. Monitoring

6. Replication

7. Replication Management Tools

8. Simple Stack

9. Advanced Stack

10. Cluster Control

11. Data Distribution

Managing WAL files with OmniPITR

We've stated on several occasions that WAL files are very important. Their role in PostgreSQL crash recovery, backup restoration, and replication gives them a central role in maintaining a high availability cluster. With OmniPITR, we can upgrade communication between servers to ensure that we have logging for every step of a WAL file's movement. This is no small benefit, and we can use it to audit the entire transmission path if we encounter a problem.

Though OmniPITR is a full suite of backup-related tools, we wish to focus on its ability to give us better control of WAL archival and recovery. As a consequence, this recipe will describe usage of the omnipitr-archive command.

Getting ready

This recipe depends on OmniPITR being installed on all servers that need to utilize it. Please follow the Installing and configuring OmniPITR recipe before continuing.

How to do it...

For this procedure, we will continue to use two servers. The backup server will still be named...

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Authors (1)

Shaun Thomas

Shaun M. Thomas has been working with PostgreSQL since late 2000. He is a frequent contributor to the PostgreSQL Performance and General mailing lists, assisting other DBAs with the knowledge he's gained over the years. In 2011 and 2012, he gave presentations at the Postgres Open conference on topics such as handling extreme throughput, high availability, server redundancy, and failover techniques. Most recently, he has contributed the Shard Manager extension and the walctl WAL management suite. Currently, he serves as the database architect at PEAK6 Investments, where he develops standard operating procedure (SOP) guidelines to facilitate reliable server architecture among many other tasks. Many of the techniques used in this book were developed specifically for this extreme environment. He believes that PostgreSQL has a stupendous future ahead, and he can't wait to see the advancements subsequent versions will bring. https://www.linkedin.com/in/bonesmoses

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