nova_placement_error.log

2017-02-26 01:55:11.144376 mod_wsgi (pid=1923): Target WSGI script '/usr/bin/nova-placement-api' cannot be loaded as Python module.
2017-02-26 01:55:11.144385 mod_wsgi (pid=1923): Exception occurred processing WSGI script '/usr/bin/nova-placement-api'.
2017-02-26 01:55:11.144394 Traceback (most recent call last):
2017-02-26 01:55:11.144402   File "/usr/bin/nova-placement-api", line 51, in <module>
2017-02-26 01:55:11.144415     application = init_application()
2017-02-26 01:55:11.144419   File "/usr/lib/python2.7/dist-packages/nova/api/openstack/placement/wsgi.py", line 53, in init_application
2017-02-26 01:55:11.144426     config.parse_args([], default_config_files=[conffile])
2017-02-26 01:55:11.144430   File "/usr/lib/python2.7/dist-packages/nova/config.py", line 35, in parse_args
2017-02-26 01:55:11.144435     log.register_options(CONF)
2017-02-26 01:55:11.144438   File "/usr/lib/python2.7/dist-packages/oslo_log/log.py", line 255, in register_options
2017-02-26 01:55:11.144443     conf.register_cli_opts(_options.common_cli_opts)
2017-02-26 01:55:11.144446   File "/usr/lib/python2.7/dist-packages/oslo_config/cfg.py", line 2288, in __inner
2017-02-26 01:55:11.144451     result = f(self, *args, **kwargs)
2017-02-26 01:55:11.144454   File "/usr/lib/python2.7/dist-packages/oslo_config/cfg.py", line 2486, in register_cli_opts
2017-02-26 01:55:11.144458     self.register_cli_opt(opt, group, clear_cache=False)
2017-02-26 01:55:11.144461   File "/usr/lib/python2.7/dist-packages/oslo_config/cfg.py", line 2292, in __inner
2017-02-26 01:55:11.144465     return f(self, *args, **kwargs)
2017-02-26 01:55:11.144468   File "/usr/lib/python2.7/dist-packages/oslo_config/cfg.py", line 2478, in register_cli_opt
2017-02-26 01:55:11.144472     raise ArgsAlreadyParsedError("cannot register CLI option")
2017-02-26 01:55:11.144482 ArgsAlreadyParsedError: arguments already parsed: cannot register CLI option