Re: page finishes loading _after_ PerlCleanupHandler

[Louis-David Mitterrand <suppressed>]

On Sat, Jan 05, 2008 at 12:21:07PM -0800, Kate Yoak wrote:
> 
> > Hi, while testing the PerlCleanupHandler in HTML::Mason:
> > 
> > <%init>
> > $r->push_handlers(PerlCleanupHandler => \&sleeptest);
> > 
> > sub sleeptest {
> >     my $r = shift;
> >     $r->warn("BEFORE SLEEP");
> >     sleep(10);
> >     $r->warn("AFTER SLEEP");
> >     };
> > </%init>
> > 
> > I've noticed that the page only finishes loading after the 
> > PerlCleanupHandler has completely executed. A per the 
> > documentation the cleanup is code is supposed to happen after 
> > the client is gone, not while he's waiting.
> 
> I became curious and tested this by registering a PerlCleanupHandler
> directly in apache. Documentation is correct - content was served before the
> cleanup handler.
> 
> I know Mason quite well but I can't find any explanation for what you are
> seeing... I know they try to delay sending content until the last possible
> moment to ensure that any and all headers make it in. But I don't see how
> they'd make it past the content phase.  Mason has an excellent mailing list,
> btw - somewhere on masonhq.com. May be somebody can make sense of it there!

Actually someone on mason-users pointed me in the right direction: 

	KeepAlive on

is the culprit. Turning it to off solves the problem.

Now what are the pros/cons of using KeepAlive in a mod_perl 
environement? 

Is it possible to turn it off only for certain requests?

Thanks,