Re: proposal: a validator for configuration files

Tom Lane <tgl@sss.pgh.pa.us>

From: Tom Lane <tgl@sss.pgh.pa.us>
To: Florian Pflug <fgp@phlo.org>
Cc: Alvaro Herrera <alvherre@commandprompt.com>, Alexey Kluykin <alexk@commandprompt.com>, Robert Haas <robertmhaas@gmail.com>, Selena Deckelmann <selena@chesnok.com>, Pg Hackers <pgsql-hackers@postgresql.org>
Date: 2011-07-16T19:23:46Z
Lists: pgsql-hackers
Florian Pflug <fgp@phlo.org> writes:
> On the downside, the current behaviour prevents problems if someone changes
> two interrelated GUCs, but makes a mistake at one of them. For example,
> someone might drastically lower bgwriter_delay but might botch the matching
> adjustment of bgwriter_lru_maxpages.

That's a fair point, but the current behavior only saves you if the
botch is such that the new value is detectably invalid, as opposed to
say just a factor of 100 off from what you meant.  Not sure that that's
all that helpful.

			regards, tom lane