| TAO_CosNotification
    2.1.6
    | 
this is too much for one class to do. It should be refactored.
we shouldn't arbitrarily use a thread.
: rather than is_error, use pacing interval so it will be configurable
: find some way to use batch buffering stratgy for sequence consumers.
 1.8.1.1
 1.8.1.1