Re: Problems with max_connections parameter

Hi again

Have something else I can do to reach the limit of the parameter
max_connections?

This may be a bug?

Thanks
Jorge

On Mon, Dec 6, 2010 at 1:31 PM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> Jorge Augusto Meira <jmeira(at)c3sl(dot)ufpr(dot)br> writes:
>> The error message was:
>> "Erro Conexão: A tentativa de conexão falhou."
>> or
>> "Erro Conexão: FATAL: connection limit exceeded for non-superusers"
>
> Hmm ... I can't find the first of those anywhere in the 8.4 message
> lists; but the second one definitely says that you *are* hitting the
> max_connections limit, whether you think you should be or not.
>
> I wonder whether you are neglecting to allow for the fact that backends
> have a nonzero shutdown time?  If you disconnect and immediately
> reconnect, it's possible that your old backend is still around, so that
> the new connection attempt causes max_connections to be exceeded.  This
> is particularly likely if the test program is on the same machine as the
> database server, because the test program itself is likely to have a
> higher scheduling priority than the old backend.
>
>                        regards, tom lane
>