Skip to Content
PostgreSQL 10 Administration Cookbook - Fourth Edition
book

PostgreSQL 10 Administration Cookbook - Fourth Edition

by Simon Riggs, Gianni Ciolli
May 2018
Intermediate to advanced content levelIntermediate to advanced
576 pages
30h 25m
English
Packt Publishing
Content preview from PostgreSQL 10 Administration Cookbook - Fourth Edition

Using statement_timeout to clean up queries that take too long to run

Often, you know that you don't have any use for queries running longer than a given time. Maybe your web frontend just refuses to wait for more than 10 seconds for a query to complete and returns a default answer to users if it takes longer, abandoning the query.

In such a case, it might be a good idea to set statement_timeout = 10 sec, either in postgresql.conf or as a per-user or per-database setting. Once you do so, queries running too long won't consume precious resources and make others' queries fail.

The queries terminated by a statement timeout show up in the log, as follows:

hannu=# SET statement_timeout TO '3 s';SEThannu=# SELECT pg_sleep(10);ERROR: canceling statement ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Start your free trial

You might also like

PostgreSQL 13 Cookbook

PostgreSQL 13 Cookbook

Vallarapu Naga Avinash Kumar
PostgreSQL 9 Administration Cookbook - Second Edition

PostgreSQL 9 Administration Cookbook - Second Edition

Simon Riggs, GIANNI CIOLLI, Hannu Krosing, Gabriele Bartolini

Publisher Resources

ISBN: 9781788474924Supplemental Content