Book Image

PostgreSQL Administration Cookbook, 9.5/9.6 Edition - Third Edition

Book Image

PostgreSQL Administration Cookbook, 9.5/9.6 Edition - Third Edition

Overview of this book

PostgreSQL is a powerful opensource database management system; now recognized as the expert's choice for a wide range of applications, it has an enviable reputation for performance and stability. PostgreSQL provides an integrated feature set comprising relational database features, object-relational, text search, Geographical Info Systems, analytical tools for big data and JSON/XML document management. Starting with short and simple recipes, you will soon dive into core features, such as configuration, server control, tables, and data. You will tackle a variety of problems a database administrator usually encounters, from creating tables to managing views, from improving performance to securing your database, and from using monitoring tools to using storage engines. Recipes based on important topics such as high availability, concurrency, replication, backup and recovery, as well as diagnostics and troubleshooting are also given special importance. By the end of this book, you will have all the knowledge you need to run, manage, and maintain PostgreSQL efficiently.
Table of Contents (13 chapters)

Setting up a connection pool

A connection pool is a term used for a collection of already connected sessions that can be used to reduce the overhead of connection and reconnection.

There are various ways by which connection pools can be provided, depending on the software stack in use. Probably, the best option is to look at the server-side connection pool software because that works for all connection types, not just within a single software stack.

Here, we're going to look at PgBouncer, which is designed as a very lightweight connection pool. The name comes from the idea that the pool can be paused and resumed to allow the server to be restarted, or bounced.

Getting ready

First of all, decide where you're going...