CDH-trouble：ProtocolError: ＜ProtocolError for 127.0.0.1/RPC2: 401 Unauthorized＞

﹏ヽ暗。殇╰゛Y 2022-10-31 12:29 19阅读 0赞

#### 问题描述 ####

cdh在安装agent的时候，报如下的错误：

[22/Feb/2021 19:03:48 +0000] 31900 MainThread supervisor   ERROR    Failed! trying again in 2 second(s): <ProtocolError for 127.0.0.1/RPC2: 401 Unauthorized>
    Traceback (most recent call last):
      File "/opt/cloudera/cm-agent/lib/python2.7/site-packages/cmf/supervisor.py", line 127, in connect
        obj = cls(cfg, os_ops_obj)
      File "/opt/cloudera/cm-agent/lib/python2.7/site-packages/cmf/supervisor.py", line 87, in __init__
        self.identifier = self.__get_supervisor_identification()
      File "/opt/cloudera/cm-agent/lib/python2.7/site-packages/cmf/util/__init__.py", line 531, in new_fn
        return fn(self, *args, **kwargs)
      File "/opt/cloudera/cm-agent/lib/python2.7/site-packages/cmf/supervisor.py", line 365, in __get_supervisor_identification
        return self.client.supervisor.getIdentification()
      File "/usr/lib64/python2.7/xmlrpclib.py", line 1233, in __call__
        return self.__send(self.__name, args)
      File "/usr/lib64/python2.7/xmlrpclib.py", line 1591, in __request
        verbose=self.__verbose
      File "/opt/cloudera/cm-agent/lib/python2.7/site-packages/supervisor/xmlrpc.py", line 470, in request
        '' )
    ProtocolError: <ProtocolError for 127.0.0.1/RPC2: 401 Unauthorized>

#### 解决办法 ####

我借鉴的https://www.cnblogs.com/zpan2019/p/13438728.html这篇文章，  
当我ps -ef 查看supervisord进程的时候，发现这个进程是很久以前启动的，不是本次安装启动，于是我就将supervisord进程kill掉了。  
然后在页面点击重试所有失败的主机，安装成功了。