postgresql/doc
Michael Paquier bbd4951b73 doc: Improve postgres command for shared_memory_size_in_huge_pages
The command used in the documentation to retrieve the value of the
runtime-computed GUC shared_memory_size_in_huge_pages would also show to
the user all the log messages generated by the postmaster before and
after printing the wanted value.  This can be confusing, as the wanted
result could be masked with a lot of noise.

One way to avoid those log messages is to use something like "-c
log_min_messages=fatal" in the command (my idea, but that's not common
knowledge).  Rather than mentioning this option, suffix the command with
a redirection of stderr to /dev/null, which is the stream location where
the logs show up.  This is enough to show only the GUC value to the
user when copy-pasting the command.

Reported-by: Magnus Hagander
Author: Nathan Bossart
Discussion: https://postgr.es/m/20220314173417.GA1020555@nathanxps13
2022-03-24 20:56:31 +09:00
..
src doc: Improve postgres command for shared_memory_size_in_huge_pages 2022-03-24 20:56:31 +09:00
KNOWN_BUGS
Makefile Remove maintainer-check target, fold into normal build 2013-10-10 20:11:56 -04:00
MISSING_FEATURES
TODO Change documentation references to PG website to use https: not http: 2017-05-20 21:50:47 -04:00