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

What if the backend won't terminate?

If pg_terminate_backend(pid) fails to kill the backend and you really need to reset the database state to make it continue processing requests, then you have yet another option: sending SIGKILL to the offending backend.

This can be done only from the command line as the root or the postgres system user, and on the same host the database is running on, by executing the following code:

kill -9 <backend_pid>

This command kills that backend immediately, without giving it a chance to clean up. Consequently, the postmaster is forced to kill all the other backends as well and restart the whole cluster.

Therefore, it actually does not matter which of the PostgreSQL backends you kill.

You must be extremely careful ...

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