Hello, I installed magnum stein on centos 7 but magnum-api reports the following error in /var/log/messages:

Dec  5 21:14:49 tst2-osctrl01 magnum-api: Traceback (most recent call last):
Dec  5 21:14:49 tst2-osctrl01 magnum-api: File "/usr/lib64/python2.7/SocketServer.py", line 568, in process_request
Dec  5 21:14:49 tst2-osctrl01 magnum-api: self.finish_request(request, client_address)
Dec  5 21:14:49 tst2-osctrl01 magnum-api: File "/usr/lib64/python2.7/SocketServer.py", line 334, in finish_request
Dec  5 21:14:49 tst2-osctrl01 magnum-api: self.RequestHandlerClass(request, client_address, self)
Dec  5 21:14:49 tst2-osctrl01 magnum-api: File "/usr/lib64/python2.7/SocketServer.py", line 651, in __init__
Dec  5 21:14:49 tst2-osctrl01 magnum-api: self.finish()
Dec  5 21:14:49 tst2-osctrl01 magnum-api: File "/usr/lib64/python2.7/SocketServer.py", line 710, in finish
Dec  5 21:14:49 tst2-osctrl01 magnum-api: self.wfile.close()
Dec  5 21:14:49 tst2-osctrl01 magnum-api: File "/usr/lib64/python2.7/socket.py", line 279, in close
Dec  5 21:14:49 tst2-osctrl01 magnum-api: self.flush()
Dec  5 21:14:49 tst2-osctrl01 magnum-api: File "/usr/lib64/python2.7/socket.py", line 303, in flush
Dec  5 21:14:49 tst2-osctrl01 magnum-api: self._sock.sendall(view[write_offset:write_offset+buffer_size])
Dec  5 21:14:49 tst2-osctrl01 magnum-api: File "/usr/lib/python2.7/site-packages/eventlet/greenio/base.py", line 401, in sendall
Dec  5 21:14:49 tst2-osctrl01 magnum-api: tail = self.send(data, flags)
Dec  5 21:14:49 tst2-osctrl01 magnum-api: File "/usr/lib/python2.7/site-packages/eventlet/greenio/base.py", line 395, in send
Dec  5 21:14:49 tst2-osctrl01 magnum-api: return self._send_loop(self.fd.send, data, flags)
Dec  5 21:14:49 tst2-osctrl01 magnum-api: File "/usr/lib/python2.7/site-packages/eventlet/greenio/base.py", line 382, in _send_loop
Dec  5 21:14:49 tst2-osctrl01 magnum-api: return send_method(data, *args)
Dec  5 21:14:49 tst2-osctrl01 magnum-api: error: [Errno 32] Broken pipe

Anyone could help me please ?

Regards

Ignazio