code: public void commitTask(
        String trackerName, InetAddress addr, CommitTaskAction action) {
      String description = "KillTaskAction " + action.getTaskID();
      LOG.info("Queueing " + description + " to worker " +
        trackerName + "(" + addr.host + ":" + addr.port + ")");
      allWorkQueues.enqueueAction(new ActionToSend(
          trackerName, addr, action, description));
    }
docs: Enqueue a commit task action.
  @param trackerName The name of the tracker to send the commit action to.
  @param addr The address of the tracker to send the commit action to.
  @param action The commit action to send.