Book Image

PostgreSQL 10 Administration Cookbook - Fourth Edition

By : Simon Riggs, Gianni Ciolli
Book Image

PostgreSQL 10 Administration Cookbook - Fourth Edition

By: Simon Riggs, Gianni Ciolli

Overview of this book

PostgreSQL is a powerful, open source database management system with an enviable reputation for high performance and stability. With many new features in its arsenal, PostgreSQL 10 allows users to scale up their PostgreSQL infrastructure. This book takes a step-by-step, recipe-based approach to effective PostgreSQL administration. Throughout this book, you will be introduced to these new features such as logical replication, native table partitioning, additional query parallelism, and much more. You will learn how to tackle a variety of problems that are basically the pain points for any database administrator - from creating tables to managing views, from improving performance to securing your database. More importantly, the book pays special attention to topics such as monitoring roles, backup, and recovery of your PostgreSQL 10 database, ensuring high availability, concurrency, and replication. By the end of this book, you will know everything you need to know to be the go-to PostgreSQL expert in your organization.
Table of Contents (14 chapters)

Archiving transaction log data

PSR can send transaction log data to a remote node even if the node is not a full PostgreSQL server. This can be useful for archiving copies of transaction log data for various purposes.

PostgreSQL includes two client tools to stream data from the server to the client. The tools are designed using a pull model; that is, you run the tools on the node you wish the data to be saved on:

  • pg_receivewal archives physical transaction log data (WAL files). This utility produces a straight copy of the original WAL files. Replication slots are recommended when using this tool from 9.4 onwards.
  • pg_recvlogical archives the results of logical decoding of transaction log data. This utility produces a copy of the transformed data rather than physical WAL. Replication slots are required for this tool. You will need to use that with a logical decoding plugin.