[Bug 1520543] Re: syslog logging is broken in neutron-server

[György Szombathelyi]

I think this can be closed as FIXED.

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Title:
  syslog logging is broken in neutron-server

Status in python-oslo.log package in Ubuntu:
  New

Bug description:
  Starting neutron-server with syslog on causes the following exception:

  Traceback (most recent call last):
    File "/usr/bin/neutron-server", line 10, in <module>
      sys.exit(main_wsgi_eventlet())
    File "/usr/lib/python2.7/dist-packages/neutron/cmd/eventlet/server/__init__.py", line 19, in main_wsgi_eventlet
      wsgi_eventlet.main()
    File "/usr/lib/python2.7/dist-packages/neutron/server/wsgi_eventlet.py", line 51, in main
      server.boot_server(_eventlet_wsgi_server)
    File "/usr/lib/python2.7/dist-packages/neutron/server/__init__.py", line 35, in boot_server
      server_func()
    File "/usr/lib/python2.7/dist-packages/neutron/server/wsgi_eventlet.py", line 28, in _eventlet_wsgi_server
      neutron_api = service.serve_wsgi(service.NeutronApiService)
    File "/usr/lib/python2.7/dist-packages/neutron/service.py", line 106, in serve_wsgi
      LOG.exception(_LE('Unrecoverable error: please check log '
    File "/usr/lib/python2.7/dist-packages/oslo_utils/excutils.py", line 195, in __exit__
      six.reraise(self.type_, self.value, self.tb)
    File "/usr/lib/python2.7/dist-packages/neutron/service.py", line 102, in serve_wsgi
      service = cls.create()
    File "/usr/lib/python2.7/dist-packages/neutron/service.py", line 94, in create
      config.setup_logging()
    File "/usr/lib/python2.7/dist-packages/neutron/common/config.py", line 214, in setup_logging
      logging.setup(cfg.CONF, product_name)
    File "/usr/lib/python2.7/dist-packages/oslo_log/log.py", line 246, in setup
      _setup_logging_from_conf(conf, product_name, version)
    File "/usr/lib/python2.7/dist-packages/oslo_log/log.py", line 337, in _setup_logging_from_conf
      facility = _find_facility(conf.syslog_log_facility)
    File "/usr/lib/python2.7/dist-packages/oslo_log/log.py", line 302, in _find_facility
      for fac in valid_facilities))
  TypeError: syslog facility must be one of: 

  Seems the bug is in oslo-log, and it is fixed upstream:
  https://github.com/openstack/oslo.log/commit/69e0ba3d75f0fa6411e9f3e8344049a625979fd8
  The global syslog object was overwritten unintentionally, and if the logging is initialized more than once, then the _find_facility function blows up.

  The version with the bug:
  python-oslo.log  1.11.0-1~cloud0

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