No data available: host=host_name service=CPU db=

Hi all,

i am able to graphing through nagiosgraph for so many services. but with the same conf, i dont get graphs for some services and get the message like “No data available: host=host_name service=CPU db=”. I have checked into the rrd directory but couldnt see the directory created for this HOST.

Kindly Suggest,

Regards,
Franklin