O'Reilly logo

PostgreSQL 9 Administration Cookbook - Second Edition by Simon Riggs, Gianni Ciolli, Hannu Krosing, Gabriele Bartolini

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Stopping the server in an emergency

If nothing else is working, we may need to stop the server quickly, without caring about disconnecting the clients gently.

"Break the glass in case of emergency!"

How to do it…

The basic command to perform an emergency restart on the server is the following:

pg_ctl -D datadir stop -m immediate

We must use an immediate stop mode.

How it works…

When you do an immediate stop, all users have their transactions aborted and all connections are disconnected. There is no clean shutdown, nor is there politeness of any kind.

An immediate mode stop is similar to a database crash. Some cached files will need to be rebuilt, and the database itself needs to undergo crash recovery when it comes back up.

Note

Note that for DBAs with ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required