ProtocolError: <ProtocolError for 127.0.0.1/RPC2: 401 Unauthor.

安装cloudera-manager-agent报错

查看/var/log/cloudera-scm-agent.log

报错

Traceback (most recent call last):
File "/usr/lib64/cmf/agent/build/env/lib/python2.7/site-packages/cmf-5.16.1-py2.7.egg/cmf/agent.py", line 2270, in connect_to_new_superviso
self.get_supervisor_process_info()
File "/usr/lib64/cmf/agent/build/env/lib/python2.7/site-packages/cmf-5.16.1-py2.7.egg/cmf/agent.py", line 2290, in get_supervisor_process_i
self.identifier = self.supervisor_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 1587, in __request
verbose=self.__verbose
File "/usr/lib64/cmf/agent/build/env/lib/python2.7/site-packages/supervisor-3.0-py2.7.egg/supervisor/xmlrpc.py", line 470, in request
'' )
ProtocolError: <ProtocolError for 127.0.0.1/RPC2: 401 Unauthorized>
[01/Dec/2018 20:23:29 +0000] 30267 MainThread agent ERROR Failed to connect to newly launched supervisor. Agent will exit
[01/Dec/2018 20:23:29 +0000] 30267 MainThread agent INFO Stopping agent...
[01/Dec/2018 20:23:29 +0000] 30267 MainThread agent INFO No extant cgroups; unmounting any cgroup roots
[01/Dec/2018 20:23:29 +0000] 30267 Dummy-1 daemonize WARNING Stopping daemon.

解决办法

[root@dip001 ~]# ps -ef | grep supervisord
root 24491 1 0 11月30 ? 00:00:34 /usr/lib64/cmf/agent/build/env/bin/python /usr/lib64/cmf/agent/build/env/bin/supervisord
root 30335 30312 0 20:27 pts/0 00:00:00 grep --color=auto supervisord

[root@dip001 ~]# kill -9 24491
[root@dip001 ~]# ps -ef | grep supervisord
root 30338 30312 0 20:27 pts/0 00:00:00 grep --color=auto supervisord

重新试，解决问题