@Override
    public void load(String taskTrackerNodeGroup) {
        if (StringUtils.isEmpty(taskTrackerNodeGroup)) {
            for (String key : JOB_MAP.keySet()) {
                LOAD_SIGNAL.add(FORCE_PREFIX + key);
            }
            return;
        }
        LOAD_SIGNAL.add(FORCE_PREFIX + taskTrackerNodeGroup);
    }
@author Robert HG (254963746@qq.com) on 8/14/15.
lts-core/src/main/java/com/github/ltsopensource/queue/AbstractPreLoader.java