interesting hang...
My apologies if this is a FAQ, I haven't been able to figure it out &
can't find the answer online anywhere.
I have a fairly extensive script I've written to display tables of
information about equipment for an online game. For some reason the
script is hanging at at least two points:
At one point in the code I have it print a link to another page, but
passing the same $ENV{'QUERY_STRING'} that was passed in to begin with.
I don't know why, but it hangs. There are no unusual characters in the
string, I've checked that; I even went so far as to escape the quotes
defining the URL in the link, but still no luck. Here's the relevant
lines as they are presently written:
$pass = "/cgi-bin/plaintextresult.cgi?$ENV{'QUERY_STRING'}";
#print "$pass\n";
print "\n";
print "Submit unlisted equipment\n";
print "Plain text version\n";
It's the last line there that hangs. Note that if I uncomment the line
that just prints the query string on its own, it doesn't hang.
I also have other strange hangs in here, but I haven't yet been able to
figure out which exact lines are causing the problem.
For the ppl who can figure this stuff out just by install data:
I'm running Redhat 8.0, Apache 2.0, on a p3-450. This entire
application did work correctly under Redhat 7.3 (Skipjack), Apache 1.3.
Unfortunately I upgraded...
Thanks,
Michael L. Forbes
[EMAIL PROTECTED]
For those who'd like to see the page in operation, it's at
parailtrail.dyndns.biz/cgi-bin/index.cgi
Re: hangs on $ENV{'QUERY_STRING'}
Well, I've managed to make some significant progress: I got past that
hang (apparently modperl was having problems with the URL b/c some of
the values were being passed empty... i.e.,
"stage=4&eqtype=All&cont=&restrictflags=12"... notice that cont has no
value.
At any rate, I solved that problem by forcing the form that passes the
information in to always have at least a bare minimum of data in each
field... and it seems to be working.
My next problem, which took four hours to track down, is that it turns
out that mod_perl is choking on null values being retrieved from MySQL.
I'm using DBI for the interface, and the actual fetch_row is performing
exactly the way it should... but when it tries to do anything with my
scalar once it has a null in it, it just chokes & sits there until it
times out. Is this a known bug? Is there a known fix for it, other
than ensuring I never have null values in my database?
Thanks,
Mike Forbes
[EMAIL PROTECTED]
On Wed, 2002-10-30 at 17:53, Michael Forbes wrote:
> My apologies in advance if this is something that's been described &
> solved before... I can't seem to find the answer in archival searches
> (maybe I'm just using the wrong terms).
>
> At any rate, I have a fairly large script that I wrote when operating
> under Apache 1.3, perl 5.8.0, Redhat 7.3. I'm now running Apache 2.0,
> perl 5.8.0, and Redhat 8.0... and it stopped working when I performed
> the upgrade.
>
>
> Anywhere, what's happening is that the code below this paragraph is just
> hanging...(on the second line, I've inserted a few "print
> 'debug\n';" lines in the real thing to make sure.) it does finally
> time out, without producing any output.
>
> here's the relevant code:
>
> $pass = "/cgi-bin/plaintextresult.cgi?$ENV{'QUERY_STRING'}";
>
> print " HREF=\"$pass\" target='printerfriendly'>Plain text version\n";
>
>
>
> Thanks in advance, and again, sorry if this is a FAQ, I just couldn't
> find the answer anywhere.
>
> -Mike Forbes
> [EMAIL PROTECTED]
>
>
hangs on $ENV{'QUERY_STRING'}
My apologies in advance if this is something that's been described &
solved before... I can't seem to find the answer in archival searches
(maybe I'm just using the wrong terms).
At any rate, I have a fairly large script that I wrote when operating
under Apache 1.3, perl 5.8.0, Redhat 7.3. I'm now running Apache 2.0,
perl 5.8.0, and Redhat 8.0... and it stopped working when I performed
the upgrade.
Anywhere, what's happening is that the code below this paragraph is just
hanging...(on the second line, I've inserted a few "print
'debug\n';" lines in the real thing to make sure.) it does finally
time out, without producing any output.
here's the relevant code:
$pass = "/cgi-bin/plaintextresult.cgi?$ENV{'QUERY_STRING'}";
print "Plain text version\n";
Thanks in advance, and again, sorry if this is a FAQ, I just couldn't
find the answer anywhere.
-Mike Forbes
[EMAIL PROTECTED]
