Traceback (most recent call last):
  File "/usr/bin/airflow", line 28, in <module>
    args.func(args)
  File "/usr/lib/python2.7/site-packages/airflow/bin/cli.py", line 858, in serve_logs
    host='0.0.0.0', port=WORKER_LOG_SERVER_PORT)
  File "/usr/lib64/python2.7/site-packages/flask/app.py", line 843, in run
    run_simple(host, port, self, **options)
  File "/usr/lib/python2.7/site-packages/werkzeug/serving.py", line 736, in run_simple
    inner()
  File "/usr/lib/python2.7/site-packages/werkzeug/serving.py", line 696, in inner
    fd=fd)
  File "/usr/lib/python2.7/site-packages/werkzeug/serving.py", line 590, in make_server
    passthrough_errors, ssl_context, fd=fd)
  File "/usr/lib/python2.7/site-packages/werkzeug/serving.py", line 501, in __init__
    HTTPServer.__init__(self, (host, int(port)), handler)
  File "/usr/lib64/python2.7/SocketServer.py", line 419, in __init__
    self.server_bind()
  File "/usr/lib64/python2.7/BaseHTTPServer.py", line 108, in server_bind
    SocketServer.TCPServer.server_bind(self)
  File "/usr/lib64/python2.7/SocketServer.py", line 430, in server_bind
    self.socket.bind(self.server_address)
  File "/usr/lib64/python2.7/socket.py", line 224, in meth
    return getattr(self._sock,name)(*args)
socket.error: [Errno 98] Address already in use
Traceback (most recent call las