[ic] PreFork causes errors

[interchange-users@interchange.redhat.com (Bill Carr)]

On Thu, 2002-03-14 at 15:36, Bill Carr wrote:
> On Wed, 2002-03-06 at 19:36, Kevin Walsh wrote:
> > > I am not receiving Internal Server errors any longer, regardless of
> the
> > > suggestion above. About 9 out of 10 times I get a partial page. The
> > > other time I get what I expect. 
> > > > > Here are some more details. 
> > > > > I have a UserTag like this: 
> > > UserTag layout HasEndTag 1 
> > > UserTag layout Routine <<EOR 
> > > sub { 
> > > my $input = shift; 
> > > return <<"EOL"; 
> > > $Variable->{TOP} 
> > > $Variable->{HEADER} 
> > > $input 
> > > $Variable->{FOOTER} 
> > > $Variable->{BOT} 
> > > EOL 
> > > } 
> > > EOR 
> > > > > A typical page looks like this: 
> > > index.html: 
> > > [layout] 
> > > [query ....][/query] 
> > > And other HTML and IC stuff 
> > > [/layout] 
> > > > > When I request index.html 9 out of 10 times I get TOP, HEADER,
> FOOTER
> > > and BOT but not the body of the page. 
> > > > > This behavior goes away when I don't set PreFork on the
> production
> > > machines. I never have this problem on my Devo machine. 
> > > > I don't know the reason for the problem you are reporting, but
> > the tag you have posted seems excessively wasteful and unnecessary
> > to me.  You are passing a lot of information around by using your
> > [layout] tag.
> > > As an alternative approach to the above, perhaps you could declare
> > two more variables, as follows:
> > > LAYOUT_START just includes __TOP__ and __HEADER__
> > LAYOUT_END just includes __FOOTER__ and __BOT__
> > > ...then re-arrange your pages as follows:
> > > __LAYOUT_START__
> > [query ...][/query]
> > And other HTML and IC stuff
> > __LAYOUT_END__
> > > If nothing else, your pages will be quicker to parse.
> I tried you suggestion and the page came up slightly slower. I tested
> with 'ab -n 100 -c 5' on the devo machine.
I take that back. I have changed all of my pages to use the format you
suggested and my apache bench scores went from 1.5 to 6 pages/sec. I can
also run PreFork.

Thanks for the suggestion.

-- 
Bill Carr
Worldwide Impact
bill@worldwideimpact.com
413-253-6700