need help getting apache/mod

nmerriweather has asked for the wisdom of the Perl Monks concerning the following question:

i can't seem to get mod_perl working right (using the pre-compiled mod_perl/apache in osx 10.3)

any perl script i hit, comes up blank -- no errors or anything -- it just doesn't print anything to the request (not even hello world!), and the browser gets a 'no data / empty document'

no errors in apachelog or errorlog
if i run a script that opens a file/writes to it -- that action is done.
apache seems to have multiple requests at the same moment -- as if every child process is trying to process the script. this only happens when mod_perl is enabled for that directory though. i have this in httpd.conf:

<Directory /webserver/documents/>
    Options All Indexes FollowSymLinks MultiViews ExecCGI
    AllowOverride None
    Order allow,deny
    Allow from all

    SetHandler perl-script
    PerlHandler Apache::PerlRun
    PerlSendHeader On
</Directory>
[download]

any suggestions?

Comment on need help getting apache/mod_perl right Download Code

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Re: need help getting apache/mod_perl right by talexb (Chancellor) on Nov 09, 2003 at 01:22 UTC
Since I've done a little something along those lines, try the following: Crank up the warnings in your httpd.conf file. I like to see some action in the error and access logs. You should at least be able to see the page being requested in the access log. Try telnetting into port 80 to see if you are getting anything. Try running the scripts from the command line. You may have to su to apache to get this to work. Good luck. --t. alex Life is short: get busy!	[reply]
Re: need help getting apache/mod_perl right by CountZero (Bishop) on Nov 09, 2003 at 08:42 UTC
What version of Apache and mod_perl are you using? Do your scripts work if used as simple CGI and not under mod_perl? CountZero "If you have four groups working on a compiler, you'll get a 4-pass compiler." - Conway's Law	[reply]
Re: need help getting apache/mod_perl right by perrin (Chancellor) on Nov 10, 2003 at 04:37 UTC
URLs will often show multiple times in the access log because they are going through multiple phases (URI translation, auth, etc.). Some suggesstions: Telnet to the server or use GET (from LWP) so that you can see the actual headers and HTTP traffic coming from the server. Make sure you loaded Apache::PerlRun. Turn on warnings: PerlWarn on. Did you really mean to make everything under /webserver/documents, including any images there, run though Apache::PerlRun? That is what you've done here.	[reply]
Re: need help getting apache/mod_perl right by nmerriweather (Friar) on Nov 09, 2003 at 18:25 UTC
pages don't go to the error log -- they're in the access log apparently 10 times from 1 request. any file stuff works -- lets say the script it this: `print "ContentType: text/plain \n\n"; open FILE, '> a.txt'; print FILE 'hello world'; close FILE; print 'hello world';` [download] a.txt will be written. no text will be served by apache. everything runs fine command line everything runs fine as a regular cgi everything runs (*&#$ as mod_perl	[reply] [d/l]
Re: need help getting apache/mod_perl right by simonm (Vicar) on Nov 09, 2003 at 17:22 UTC
Perhaps unrelated, but if you're using the default Apple settings that include "WebPerfCacheEnable On", your Apache instance is probably running on a high port, like 16080... You might try taking a look at your conf and accessing the script directly using that high port number to circumvent the webperfcache process to see if that makes a difference.	[reply]