Forking problem with mod_perl...

[Brian <br...@mtu.net>]

I'm writing a script that will run under mod_perl.  Right now, if I
disable mod_perl the script runs fine.  When I turn mod_perl back on, it
stops working.  Here's the lowdown.

Basically I'm writing a program that will take a users email address and
their password, and make an attempt to figure out what mail server they
use to check their mail.  To speed things up, I'm forking off a process
for each possible server.  So, if your email address is foo@bar.com,
then my script would try the servers:

foo.com
mail.foo.com
pPop.foo.com
pop3.foo.com

And so on.  Each attempt would be a new fork.  Now, what is happening is
$SIG{CHLD} is being completely ignored with mod_perl on.  And it's
driving me nutty trying to figure out why.  I've declared it as a
package variable, I've declared it as a local variable, and nothing
seems to work.  Does anybody have any idea why SIG{CHLD} would be
ignored under mod_perl?

Brian Johnson
Programmer/Systems Administrator
Source1Results.com
http://www.source1results.com
Online Marketing Management and Solutions

Re: Forking problem with mod_perl...

["Brett W. McCoy" <bm...@chapelperilous.net>]

On Sun, 2 Dec 2001, Brian wrote:

> I'm writing a script that will run under mod_perl.  Right now, if I
> disable mod_perl the script runs fine.  When I turn mod_perl back on, it
> stops working.  Here's the lowdown.

Forking under mod_perl isn't a good idea.  Did you read this?

http://perl.apache.org/guide/performance.html#Forking_and_Executing_Subprocess

-- Brett
                                          http://www.chapelperilous.net/
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