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PostgreSQL 9 High Availability Cookbook

You're reading from   PostgreSQL 9 High Availability Cookbook Over 100 recipes to design and implement a highly available server with the advanced features of PostgreSQL.

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Product type Paperback
Published in Jul 2014
Publisher Packt
ISBN-13 9781849516969
Length 398 pages
Edition 1st Edition
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Author (1):
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Shaun Thomas Shaun Thomas
Author Profile Icon Shaun Thomas
Shaun Thomas
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Toc

Table of Contents (12) Chapters Close

Preface 1. Hardware Planning FREE CHAPTER 2. Handling and Avoiding Downtime 3. Pooling Resources 4. Troubleshooting 5. Monitoring 6. Replication 7. Replication Management Tools 8. Advanced Stack 9. Cluster Control 10. Data Distribution Index

Introduction

Every business has the goal of being successful. The consequence of having a successful business when there's a database involved is increasingly high volume. This volume can be composed of query activity, data accumulation, or both. A PostgreSQL database that is not prepared for vast amounts of data or transaction load will slowly falter until the platform suffers.

Customers notice bad performance just as readily as outages. If our database is struggling to service queries, we have three options:

  • Spend time optimizing the platform to reduce database interaction
  • Buy a more capable database server
  • Store data on several PostgreSQL servers

Indeed, we should probably always implement step one in any case. Yet, there is a limit to candidates for optimization. If the platform is using an ORM, making query changes can be difficult. Frontend caching can prevent a vast amount of database accesses, but we need to consider cold caches, refreshes, and write volume. Writes must touch the...

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