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Date:      Thu, 21 Jun 2001 22:44:20 -0600 (MDT)
From:      "Forrest W. Christian" <forrestc@imach.com>
To:        Ryan Thompson <ryan@sasknow.com>
Cc:        Sean Chittenden <sean-freebsd-isp@chittenden.org>, Troy Settle <troy@psknet.com>, freebsd-isp@FreeBSD.ORG
Subject:   Re: mod_perl
Message-ID:  <Pine.BSF.4.21.0106212241230.15645-100000@workhorse.iMach.com>
In-Reply-To: <Pine.BSF.4.21.0106212110080.82170-100000@ren.sasknow.com>

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On Thu, 21 Jun 2001, Ryan Thompson wrote:

> Two things you need to keep in mind:
> 
> 1. Not all Perl source is compatible with mod_perl. Your scripts WILL
> break if they are not coded in "the mod_perl way". Many perl scripts NOT
> written for mod_perl will not work correctly. (Chances are they will WORK,
> but will start to produce WEIRD results like incremental counters that
> work fine for awhile, then start spitting out oddball numbers). Your
> choice:
> 	* (re)write the CGI for mod_perl
> 	* Don't run the script under mod_perl

I will have to say that some scripts written FOR mod_perl can produce
WEIRD results.  mod_perl scripts are not the easiest things to write, as
if you miss reinitializing a variable you're possibly screwed.

And you end up with some weird interactions in relation to libraries, such
as a script might run just fine as long as another script hasn't ran on
the same machine, etc.

That said, writing mod_perl isn't all that bad as long as you are careful
to do things which you probably should be doing normally, but don't have
to.

- Forrest W. Christian (forrestc@imach.com) AC7DE
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