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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

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Since reloading the configuration file is achieved by sending the SIGHUP signal, we can reload the configuration file only for a single backend using the kill command. As you might expect, you may get some strange results from doing this, so don't try it at home.

First, find the PID of the backend using pg_stat_activity. Then, from the OS prompt, issue the following:

kill -SIGHUP   pid

Alternatively, we can do both at once, as shown in this command:

kill -SIGHUP \&& psql -t -c "select pid from pg_stat_activity limit 1";

This is only useful with a sensible WHERE clause.

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Publisher Resources

ISBN: 9781788474924Supplemental Content