I am assuming that the parent CGI script is trying to call another CGI script on the same web server. In that case, you don't need to use LWP. The parent can execute the other CGI script directly. Although, if the parent detaches from child, then the child has no way to communicate back to the browser.

The reason system doesn't work is that it waits for the child process to return. The solution is to use fork and then exec. When running under a web server, you must close STDERR and STDOUT, or the browser won't know that the CGI script has finished. 

if ($pid = fork()) {
   # parent

} else {
    die "Cannot fork:$!" unless defined $pid;
    close(STDOUT);
    close(STDERR);
    exec("otherscript.pl");
}

[download]

In reply to Re: LWP Forking by iburrell
in thread LWP Forking by Mitch

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.