RE: too many clients - Error message

Charles Tassell <ctassell@isn.net>

From: Charles Tassell <ctassell@isn.net>
To: "Joseph" <lters@mrtc.com>
Cc: <pgsql-general@postgresql.org>
Date: 2000-04-26T16:56:27Z
Lists: pgsql-general
Depends on what you are using for clients.  For instance, many web 
programming suites use "persistent connections."  Persistent connections 
stay open in the hopes that the web server process will have need of them 
again, and keeping them open will save  the time of reconnecting when that 
occurs.  Only Apache with addons like mod_perl, Zope, or PHP will use 
persistent connections.  In other clients, I would guess that the problem 
is that the client isn't calling disconnect, either because it's idling, or 
because the author forgot to code it in before the client exits.  I'm not 
sure how long it takes PostGres to idle out a backend process, or if it 
ever will.


At 07:31 AM 4/26/00, Joseph wrote:
>Thanks for the response.
>
>Why do the connections seem to build up?
>How do you clear them?
>Should not the client close the connection when finished?
>Or see how many are out there?
>
> >The maximum number of backends that the PostGres postmaster will start is
> >32.  If you want more, you have to specify the maximum on the command line
> >with the -N option. IE, you can start postgres like this to allow internet
> >connections, have it fork into the background, and allow 100 simultaneous
> >connections:
>
> >/usr/local/pgsql/bin/postmaster -i -B 256 -S -N 100
> >
> >>At 07:16 AM 4/22/00, Joseph wrote:
> >>
> >>How do you solve this error message?
> >>
> >>Connection to database 'template1' failed.
> >>Sorry, too many clients already
>
>
>
>Joseph