On Tue, 2009-03-10 at 07:30 -0700, Selena Deckelmann wrote:

> > Is it possible to check for parameters that have been changed, yet will
> > not be applied at reload?
> 
> This was already implemented! :) For example:
> 
> LOG:  attempted change of parameter "shared_buffers" ignored
> DETAIL:  This parameter cannot be changed after server start.
> LOG:  attempted change of parameter "max_prepared_transactions" ignored
> DETAIL:  This parameter cannot be changed after server start.

OK, had that at the back of my mind for a while I guess.

> A thing that could be added, however, is reporting of all invalid (as 
> opposed to valid, but requires a restart to apply) parameters before 
> exiting. This change requires refactoring ProcessConfigFile() more 
> significantly, as the parsing and validity checks are done separately, 
> and are exited with gotos. :)
> 
> I haven't tried to change this yet, but was planning to.

Can't we just do a reload, but with doit = false?

-- 
 Simon Riggs           www.2ndQuadrant.com
 PostgreSQL Training, Services and Support


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