Can't get data with Cached::Memcached ?

[老邪]

hi, all
    i got a problem in getting data with perl using Cached::Memcached.

here is the situation

1. there are three machines
A. running a memcached server and listening 11211 port  (Centos 4/ perl
5.8.6 / cached::memcached 1.2.4 installed)
B. a client with running a simple perl script (centos 4/ perl 5.8.5 /
cached::memcached 1.2.4 installed)
C. a client with running a simple perl script (my pc - winxp / perl 5.10 /
cached::memcached 1.2.4 installed)

2. here is the perl script
------------------------------------
#!/usr/bin/perl
use Data::Dumper;
use Cache::Memcached;

## memcached server ip
my $memd_server = 'IP_OF_A_MACHINE:11211';
my $memd_key = 'my_key';


my $memd = new Cache::Memcached {
    'servers' => [ $memd_server ],
    'debug' => 0,
    'compress_threshold' => 10_000,
  };


my $attack_times = $memd->get($memd_key);

print Dumper $attack_times;
-----------------------------------------

3. telent testing
1) telnet A 11211 on B, can connect to memcached server, 'stats' , 'get
my_key' command both are working
2) telent A 11211 on C, can connect to memcached server, 'stats' , 'get
my_key' command both are working

4. perl script testing
1) running perl script on A, can get the result
2) running perl script on B, get no result (not showing any error)
3) running perl script on C, can get the result


it's weird for me. still can't understand why B can't get data with the same
script. seems the cached::memcached
is not working... but don't know why :(

is the perl version related???

any hints? thank you very much!!!!