[cgiapp] CAP::Session causing errors under FastCGI and Plack?

[Cees Hek]

On Wed, Apr 4, 2012 at 1:51 PM, Jason Crome <cromedome at gmail.com> wrote:
> I keep banging my head against the wall trying to figure this out.  I expect that I am doing something else wrong, but whenever I comment out the session initialization logic, my app runs (as well as it can without sessions, that is).
>
> I am getting this error under FCGI and PSGI:
> "[Dispatch] ERROR for request '/': Unknown error: Error executing class callback in init stage: Calling session_config after the session has already been created at /Users/crome/perl5/perlbrew/perls/perl-5.14.2/lib/site_perl/5.14.2/CGI/Application/Plugin/Session.pm line 79."

Hi Jason,

Does this happen every time?  Or does the first request succeed and
then subsequent requests fail?  Does it have any problems when you run
it as a plain old CGI?

The big question for me is:  Are you getting a new CGI::Application
object on every request, or is the object from the previous request
being re-used?  If the object is being re-used, then it is not being
cleared out properly and hence the CAP::Session module thinks the
session has already been loaded when cgiapp_init calls session_config.

CAP::Session looks to see if $self->{__CAP__SESSION_OBJ} exists to
determine if a session has already been loaded.  At the start of your
cgiapp_init method, look to see if it exists already which should
point you in the right direction to figuring out what is going on.

Cheers,

Cees