Apache profiler errors

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

I'm trying to profile some perl CGI someone else wrote, but I can't seem to get Apache::DProf working. My server runs Apache 2.0.46 with mod_perl 1.99 and Apache::DProf 0.09. I'm getting the following error when trying to start Apache when Apache::DProf is set to load in httpd.conf:

Starting httpd: [Mon Nov 01 22:37:13 2004] [error] Can't locate object
+ method "server_root_relative" via package "Apache::Server" at /usr/l
+ib/perl5/site_perl/5.8.0/i386-linux-thread-multi/Apache/DProf.pm line
+ 30.!Compilation failed in require at (eval 2) line 3.!
[Mon Nov 01 22:37:13 2004] [error] Can't load Perl module Apache::DPro
+f for server localhost:0, exiting...!
[download]

Now, if I'm not mistaken, server_root_relative is in Apache::ServerUtil. Looking at the relevant portion of DProf.pm, it appears to handle the differences between Apache1 and Apache2 correctly, so Apache::compat shouldn't be necessary (although I've tried that too):

package Apache::DProf;

use strict;
use Apache::DB ();
use File::Path ();

{
    no strict;
    $VERSION = '0.04';
}

# Need to determine if we are in a mod_perl 1.x or 2.x environment
# and load the appropriate modules
BEGIN {
        use constant MP2 => eval { require mod_perl; $mod_perl::VERSIO
+N > 1.99 };
        die "mod_perl is required to run this module: $@" if $@;

        if (MP2) {
                require Apache2;
                require Apache::RequestRec;
                require Apache::ServerUtil;
        }
}


# Adjust to handle mp1 and mp2 differently
my $prof_path;
if (MP2) {
    my $s = Apache->server;
    $prof_path = $s->server_root_relative( $ENV{APACHE_DPROF_PATH} ||
                                           "logs/dprof");
}
else {
    $prof_path = Apache->server_root_relative($ENV{APACHE_DPROF_PATH} 
+||
                                           "logs/dprof");
}
[download]

Any ideas why this module is failing for me? I've tried Googling on the server_root_relative error, but this inevitably directs me to Apache::compat suggestions, which I don't think are relevant to this module. Thanks,

-fp

Comment on Apache profiler errors Select or Download Code

Replies are listed 'Best First'.
Re: Apache profiler errors by ides (Deacon) on Nov 02, 2004 at 21:23 UTC
After further research this problem is due to using an older release candidate of mod_perl 2.0. You have to use at least mod_perl 1.99_16 in order for this to work. Frank Wiles <frank@wiles.org> http://www.wiles.org	[reply]
Re: Apache profiler errors by ides (Deacon) on Nov 02, 2004 at 15:45 UTC
Saw your message about this post on the mod_perl list. I believe this is fixed by using Apache2 in your startup.pl. Let me know if this indeed does fix your problem and I'll get the Apache::DProf documentation updated. UPDATE: That doesn't seem to fix the problem. Try adding Apache::ServerUtil to your startup.pl Frank Wiles <frank@wiles.org> http://www.wiles.org	[reply]


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