我们的Hive中开启了authentication(hive.security.authorization.enabled为true)，为了防止用户在hive session中reset这个配置为false，绕过authorization策略，我们在setProcessor中会预先加载hiveConfSetBlackList，如果用户set blacklist中的hiveconf会抛异常，今天发现Hive0.11中已经增加了一个配置选项“hive.conf.restricted.list”，value用逗号分割，会起到相同的效果。

    // setup list of conf vars that are not allowed to change runtime
    String restrictListStr = this.get(ConfVars.HIVE_CONF_RESTRICTED_LIST.toString());
    if (restrictListStr != null) {
      for (String entry : restrictListStr.split(",")) {
        restrictList.add(entry);
      }
    }
    restrictList.add(ConfVars.HIVE_CONF_RESTRICTED_LIST.toString());

  public void verifyAndSet(String name, String value) throws IllegalArgumentException {
    if (restrictList.contains(name)) {
      throw new IllegalArgumentException("Cann't modify " + name + " at runtime");
    }
    set(name, value);
  }

通过设置hive.conf.restricted.list，能防止用户reset某些禁止的hiveconf值

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