Hi all,
I'm receiving a strange message which I think is caused by something I'm
doing with modperl and/or Mason, but I'm not sure what to look for.
Basically, I have a page which refreshes every 3 seconds waiting for
some spawned child process to complete. When it completes, it stops
refreshing (which is expected), but it also displays this at the top of
the page:
null device 1 HTTP/1.1 200 OK Date: Fri, 11 Jul 2008 09:40:57 GMT
Server: Apache/2.2.3 (Debian) DAV/2 SVN/1.4.2 mod_python/3.2.10
Python/2.4.4 PHP/5.2.0-8+etch11 mod_apreq2-20051231/2.6.0 mod_perl/2.0.2
Perl/v5.8.8 Refresh: 3; url=http://... Keep-Alive: timeout=15, max=84
Connection: Keep-Alive Transfer-Encoding: chunked Content-Type:
text/html; charset=UTF-8 998
I would prefer to not give this information out, but I'm also wondering
if this is indicating some other problem. ("null device" does not sound
good...) I do not know if this is relevant, but my code for forking is
below:
-----
$ENV{'PATH'} = '/bin:/usr/bin';
delete @ENV{'IFS', 'CDPATH', 'ENV', 'BASH_ENV'};
$SIG{CHLD} = 'IGNORE';
defined (my $kid = fork) or die "Cannot fork: $!\n";
if ($kid) {
chdir $HOMEDIR;
}
else {
setsid () or die "Can't start a new session: $!";
open STDIN, '/dev/null' or die "Can't read /dev/null: $!";
open STDOUT, '>/dev/null' or die "Can't write to /dev/null: $!";
open STDERR, '>/dev/null' or die "Can't write to /dev/null: $!";
exec $cmd or die "Cannot execute exec: $!";
}
-----
And to make it refresh, I am doing this Mason code (in another file):
% $r -> headers_out -> set (Refresh => "3; url=$url");
Of course, I don't know if either one of these snippets are the source
of my problem. I also run the same server elsewhere administered by
someone else more knowledgeable than me and I'm not getting the problem
there...so, it could be a server setting. But, I'm not sure what to
look for in the Apache documentation. Does anyone know what the problem
is or where I should be looking?
Thanks in advance!
Ray
