Re: Admin nice-to-have's

Neil Conway wrote:
> Scott Shattuck <ss@technicalpursuit.com> writes:
> > Allow DBA/Database Owner to log in even when max_connections has
> > been reached so they can determine which queries are hung via
> > pg_stat_activity etc. and perform any other needed work to restore
> > stability.
> 
> Allowing the database owner to login seems definately wrong: it's not
> unusual for many of the normal database clients to run as the owner of
> the database they operate on. So this would effectively disable the
> max_connections limit in this situation.
> 
> I don't see a major problem with allowing postgres to login if the
> connection limit is hit (although I'm not sure it's worth the worry,
> when 'kill a backend executing SELECT ; psql template1 postgres' works
> as-is).

You would have to do it the unix kernel way when the PROC structure
fills;  it keeps the last slot open and only lets root use it.  If this
is desirable, I can add it to TODO.

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