Hi Jacky,
looks like your rating engine is not running. Did u install and start it?
I am using debian packages for cdrtool and it is automatically
installed. If u used same, all u must do is edit the
/etc/defaults/cdrtool to enable both ratingengine as well as memcached
and then start cdrtool with /etc/init.d/cdrtool start.
Hope that helps.
Cheers,
DanB