Re: postgres and persistant connections (using Apache::DBI) - Mailing list pgsql-admin

Rajesh,
Thanks for the suggestion. I tried what you told me. In my startup script I
did
use Apache2::Status;
use Apache::DBI;
before any modules that use DB connect were loaded.
I also included the handler for perl-status in the conf file as you
mentioned.
However as I access different pages the database connection doesn't persist.
I check netstat on the db server and I see connections from the web server
that appear and disappear.
I checked http://my_mod_perl_server/perl-status and it has a link that says
DBI connections but with no data in it.
Also I wasn't clear on why you are not using connect_on_init.
Thanks
Salem


>From: "Rajesh Kumar Mallah" <mallah.rajesh@gmail.com>
>To: "Salem Berhanu" <salemb4@hotmail.com>
>CC: pgsql-admin@postgresql.org
>Subject: Re: [ADMIN] postgres and persistant connections (using
>Apache::DBI)
>Date: Wed, 29 Mar 2006 21:32:47 +0530
>
>On 3/29/06, Salem Berhanu <salemb4@hotmail.com> wrote:
> > I am trying to set up a persistent connection to a handful of postgres
>dbs
> > at startup using Apache::DBI (also using mod_perl)
> > Here is what I am doing but I am not sure how to check if it's working
> > right.
> >
> > in httpd.conf I have
> > PerlRequire startup.pl
> >
> > in startup.pl I load all the necessary perl modules and also include the
> > lines
> >
> > use Apache::DBI;
> > Apache::DBI->connect_on_init( host, login, password);
> >
> > This doesn't seem to make any difference. I was expecting to see
>database
> > connections when I restarted apache and that all queries would get
>handled
> > by these connections. Is this a wrong assumption? What is the
>expectation
> > and what would be a good test when setting up persistent connections to
>a
> > postgres db?
>
>We use DBI connection pooling with postgres in mod_perl environment
>and it works fine. We however do not use connect_on_init as Apache::DBI
>docs say that all DBI->connect() anyway gets intercepted transparently.
>
>please take care that
>
>1. Make sure Apache::DBI is loaded before any module that issues a DB
>connect.
>you can even load Apache::DBI from httpd.conf by
>PerlRequire Apache::DBI
>
>2. You can know if Apache::DBI is effective or not by installing
>Apache::Status
>,load Apache::Status before Apache::DBI in that case and add a Location
>section in the httpd.conf like:
>
>
>--------------- httpd.conf---------------------
>PerlModule Apache::Status
>PerlModule Apache::DBI
>
><Location /perl-status>
>         SetHandler  perl-script
>         PerlHandler Apache::Status
></Location>
>------------------------------------------------------
>point your browser to http://your_mod_perl_server/perl-status
>and check the section about database conenctions.
>
>i am not sure if this info answers your question but
>i am describing something that works for me.
>
>regds
>Rajesh Kumar Mallah.
>
>
>
>
>
>
>
>
>
>
> > Thanks much
> > Salem
> >
> >
> >
> > ---------------------------(end of broadcast)---------------------------
> > TIP 2: Don't 'kill -9' the postmaster
> >