code: public void abortScheduling(String requestId, boolean force) {
        if (trace) {
           log.tracef("Request[%s] abort scheduling", requestId);
        }
        ScheduledRequest scheduledRequest = scheduledRequests.get(requestId);
        if (scheduledRequest != null && (scheduledRequest.request.isDone() || force)) {
           scheduledRequest.scheduledFuture.cancel(false);
           scheduledRequests.remove(requestId);
        }
     }
docs: Aborts the scheduled request. If force is true, it will abort even if the request is not completed
  
  @param requestId, unique identifier of the request
  @param force,     force abort