Re: Admin nice-to-have's

Tom Lane wrote:
> Bruce Momjian <pgman@candle.pha.pa.us> writes:
> > Tom Lane wrote:
> >> We could consider establishing a "soft" connection limit that's somewhat
> >> less than max_connections, and allowing non-superusers to log in only
> >> if the soft limit hasn't been exceeded.  This does not guarantee that
> >> superusers can always get in: the extra slots might have been filled by
> >> other superuser connections.  But it'd give them better odds than the
> >> rabble.
> 
> > Yea, added to TODO:
> >     * Reserve last process slot for super-user if max_connections reached
> 
> I don't like phrasing it that way: if we are going to do this at all
> then the number of reserved slots should be a configurable parameter.
> If I were a DBA I'd want it to be at least two: figure one for a cron
> job (doing backups, periodic vacuums, etc) and one for emergency
> interactive superuser access.  It definitely seems like something that
> installations would have differing views about.

Added "few":
* Reserve last few process slots for super-user if  max_connections reached

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