Memcache 'get' returns undef running under mod_perl

[graq]

I have Cache::Memcache installed on Redhat. I have started the memcache process like so:

memcached -d -m1024 -l 127.0.0.1 -p 11211 -u root

Apache is configured like so:

PerlModule My::SSI
<Files ~ "\.(s?html|xml)$">
  RequestHeader unset If-Modified-Since
  RequestHeader unset If-None-Match
  ExpiresActive On
  ExpiresDefault "access plus 5 minutes"
  PerlOptions +SetupEnv
  PerlOutputFilterHandler My::SSI
</Files>

In My::SSI I create various other objects and call methods on them. E.G. My::MemcacheTest->test

package My::MemcacheTest;

# ... etc ... - let me know if this bit is important!
sub test
{
  my $memd = Cache::Memcached->new(
    servers            => [ "127.0.0.1:11211" ],
    debug              => 0,
    compress_threshold => 10_000,
  );

  $memd->set('my_test','KISS');
  my $simple_test = $memd->get('my_test') || 'This did not work';
  print STDERR "Test Result = $simple_test\n";
}

#Outputs: 'Test Result = This did not work'

Elsewhere I have a simple script to read the memcached key, which works:

#!/usr/bun/perl
use Cache::Memcached;

my $memd = Cache::Memcached->new(
  servers            => [ "127.0.0.1:11211" ],
  debug              => 0,
  compress_threshold => 10_000,
);

print "Memcached value is: ".$memd->get('my_test')." \n";

#Outputs: Memcache value is: KISS

I have tried various combinations of getting and setting values, the only one that doesn't work is 'get' through mod_perl

[hsinclai]

Well something else must be up... your code works in my setup perfectly, I can even add new keys and get their values... this is also on Dead Rat (Centos 5:).

Just to compare- I'm running memcached 1.2.2 compiled from source on x86_64, memcached user is "nobody" (not root).. my Cache::Memcached is version 1.24 from a CPAN install...

[graq]

Sorry the delay in replying. I was fairly sure it is a Perlism that is just beyond me.

For completeness, it is running on 32 bit redhat 4 (2.6.17), memcache 1.2.2 and Cache::Memcached 1.24.

Also; Apache 2.0, Perl 5.8.6, gcc 4.0.2, mod_perl 2

[tye]

    debug => 0,

That seems the obvious place to start. :)

[graq]

Sadly, it does not seem very informative. Telling me that the value has been stored (which I know) and that the cache has been hit (which I know).

Other than that, it is very silent

[tye]

To continue with the simple and obvious suggestions (that you may have already tried), add "-vv" to your memcached command line. (I was also suspicious of your "-u root" as hsinclai highlighted but it'd also be interesting to learn of the mechanics of the failure.)