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PostgreSQL 9 Administration Cookbook - Second Edition
book

PostgreSQL 9 Administration Cookbook - Second Edition

by Simon Riggs, GIANNI CIOLLI, Hannu Krosing, Gabriele Bartolini
April 2015
Intermediate to advanced content levelIntermediate to advanced
504 pages
11h 41m
English
Packt Publishing
Content preview from PostgreSQL 9 Administration Cookbook - Second Edition

Controlling automatic database maintenance

Autovacuum is enabled by default in PostgreSQL 9.4, and mostly does a great job of maintaining your PostgreSQL database. We say "mostly" because it doesn't know everything you do about the database, such as the best time to perform maintenance actions.

Getting ready

Exercising control requires some thinking about what you actually want:

  • Which are the best times of day to do things? When are system resources more available?
  • Which days are quiet, and which are not?
  • Which tables are critical to the application, and which are not?

How to do it…

The first thing to do is to make sure that autovacuum is switched on. You must have both of the following parameters enabled in your postgresql.conf file:

autovacuum = on ...
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Publisher Resources

ISBN: 9781849519069Supplemental Content