Book Image

PostgreSQL 11 Administration Cookbook

By : Simon Riggs, Gianni Ciolli, Sudheer Kumar Meesala
Book Image

PostgreSQL 11 Administration Cookbook

By: Simon Riggs, Gianni Ciolli, Sudheer Kumar Meesala

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 11 allows you to scale up your PostgreSQL infrastructure. This book takes a step-by-step, recipe-based approach to effective PostgreSQL administration. The book will introduce you to new features such as logical replication, native table partitioning, additional query parallelism, and much more to help you to understand and control, crash recovery and plan backups. You will learn how to tackle a variety of problems and pain points for any database administrator such as creating tables, managing views, improving performance, and securing your database. As you make steady progress, the book will draw attention to important topics such as monitoring roles, backup, and recovery of your PostgreSQL 11 database to help you understand roles and produce a summary of log files, ensuring high availability, concurrency, and replication. By the end of this book, you will have the necessary knowledge to manage your PostgreSQL 11 database efficiently.
Table of Contents (19 chapters)
Title Page
Copyright and Credits
About Packt
Contributors
Preface
Index

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.
  • pg_recvlogical archives the results of the 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.

Getting ready

This recipe assumes that you have already set up replication according to the earlier recipes so that wal_level, max_wal_senders...