memcached monitoring script

[Thomas Séglard <tsg (at) bluekiwi-software.com>]

Hello all,

I'm using your script for some weeks now but no graph displays. I simply 
follow your directives (add a line in hobbitserver.cfg, add a graph 
definition into hobbitgraph.cfg) and as a result I have a simple line 
"hobbit graph ncv:mcache" with a magnifier near it. The rrd database is 
filling up and looks good :

<!-- Round Robin Database Dump --><rrd> <version> 0003 </version>
       <step> 300 </step> <!-- Seconds -->
       <lastupdate> 1252575866 </lastupdate> <!-- 2009-09-10 11:44:26 
CEST -->

       <ds>
               <name> reqs </name>
               <type> DERIVE </type>
               <minimal_heartbeat> 600 </minimal_heartbeat>
               <min> NaN </min>
               <max> NaN </max>

               <!-- PDP Status -->
               <last_ds> 1174372 </last_ds>
               <value> 1.1526666667e+03 </value>
               <unknown_sec> 0 </unknown_sec>
       </ds>

       <ds>
               <name> hitratio </name>
               <type> GAUGE </type>
               <minimal_heartbeat> 600 </minimal_heartbeat>
               <min> NaN </min>
               <max> NaN </max>

               <!-- PDP Status -->
               <last_ds> UNKN </last_ds>
               <value> 1.9418000000e+04 </value>
               <unknown_sec> 0 </unknown_sec>
       </ds>

       <ds>
               <name> conn </name>
               <type> GAUGE </type>
               <minimal_heartbeat> 600 </minimal_heartbeat>
               <min> NaN </min>
               <max> NaN </max>

               <!-- PDP Status -->
               <last_ds> UNKN </last_ds>
               <value> 1.3300000000e+03 </value>
               <unknown_sec> 0 </unknown_sec>
       </ds>

       <ds>
               <name> storage </name>
               <type> GAUGE </type>
               <minimal_heartbeat> 600 </minimal_heartbeat>
               <min> NaN </min>
               <max> NaN </max>

               <!-- PDP Status -->
               <last_ds> UNKN </last_ds>
               <value> 5.3200000000e+02 </value>
               <unknown_sec> 0 </unknown_sec>
       </ds>


Everything seems fine but no graph is showing up. Please help ! Thanks.
Sincerly,

ThomaS