/**
  * Description: <br>
  *
  * @author 王伟<br>
  * @taskId <br>
  * @param nodeName
  * @param key
  * @throws CacheException <br>
  */
 @Override
 public void removeValue(String nodeName, String key) throws CacheException {
   try {
     cluster.hdel(nodeName, key);
   } catch (Exception e) {
     throw new CacheException(ErrorCodeDef.CACHE_ERROR_10002, "serial map failed!", e);
   }
 }